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Rezultatele pentru eco efficiencyRezultate gasite: 1732
Alternative energy sources in transition countries. The case of bioenergy in Ukraine
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 AbstractDuring the transition to a market economy, many countries with a planned economy in Central and Eastern Europe face similar challenges when the established socio-economic systems and infrastructures deemed inefficient in a market economy. Also new issues are being raised by the trends of globalization and the vision of sustainable development. In the energy sector the challenges raised by the Kyoto Protocol and its implementation mechanisms are especially interesting, because they are in... Autori: Andrius Plepys, Giulia Gervasoni, Jean-Philippe Boutin, Kes McCormick, Kristin Seyboth, Luis Mundaca, Marko Ratton, Patrick Lamers, Robert Hlep ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25104
Environmental Engineering and Management Journal, Vol. 6 Nr. 2
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 Include urmatoarele articole? Degradation of alcian blue 8 gx by heterogeneous and homogeneous photocatalytic processes? Evaluating the performance of solid waste management models? Bioreactors with stirred bed of immobilized cells 1. Studies on mixing efficiency? Fugitive emissions estimation from petroleum storage tanks? New Ni(II) coordination polymers with insulating and anticorrosive properties? Determination of water quality deterioration at pilgrimage centre along river netrav... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25196
Environmental Engineering and Management Journal, Vol. 6 Nr. 1
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 Contine urmatoarele articole:???? Alternative energy sources in transition countries. The case of bioenergy in Ukraine???? Catalytic destruction of aromatic VOCs on SCR-DeNOx commercial catalyst???? Ecological Economics And Transport Systems???? Bioleaching of uranyl ions from uranium ores by some algae???? Irreversible affinity immobilization of lentil seedling???? Evaluation of artificial neural network techniques for river flow forecasting???? Hydrogen and sustainable energy. Re... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25194
Ecological Economics And Transport Systems
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 AbstractEcological economics is an emerging field that offers significant room for creativity and innovation at the conceptual level on how to operationalize sustainability. It integrates economics with ecology and many elements from both the natural and social sciences to provide an integrated perspective on environment-economy interactions. A major policy dilemma that ecological economics addresses is how policy-makers can influence markets, so that they receive the 'right' signals from the na... Autori: Kes McCormick ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25106
Evaluation of artificial neural network techniques for river flow forecasting
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 River runoff forecasting is one of the most complex areas of research in hydrology because of the uncertainty of hydrological and meteorological parameters and scarcity of adequate records. Artificial neural networks (ANN) can be an efficient way of modelling stream flow processes as it is capable of controlling and modelling nonlinear and complex systems and does not require describing the complex nature of the hydrological processes. In this study, daily river flow is forecasted using two ANN ... Autori: Cintia Bertacchi Uvo, Dimitri Namgaladze, George Gabitsinashvili ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25110
Hydrogen and sustainable energy. Research for hydrogen production
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 Abstract Hydrogen could be considered a synthetic secondary power carrier fuel in the years to come, subsequent to the fossil fuels economy. Thus the concept 'hydrogen economy' shall be defined, and it will also have a great influence in the future years.The field of power generation (producing electric power), transports, (electric cars), chemistry (hydrogen is a major raw material) are potential users of hydrogen.The experts support, by means of a series of economical and strategic analysis ma... Autori: Corina Rădulescu, Elisabeta Păsculete, Florentina Condrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25111
Solid waste management systems assessment: the municipality's point-of-view
Environmental Engineering and Management Journal › Vol. 6 › Nr. 1 AbstractThe objective of the paper is to present sustainability indicators for municipal solid waste management (MSWM). Sustainability implies environmental, economic and social acceptance. The complexity of the system-in-focus requires the employment of a systems (or cybernetic) approach: Acceptance implies clear objectives, from a specific point of view (here, the viewpoint of the municipal administration is taken), over a time horizon covering at least two generations, a life-cycle considerat... Autori: Demetrios Panagiotakopoulos, Konstantinia Tsilemou ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25112
Degradation of alcian blue 8 gx by heterogeneous and homogeneous photocatalytic processes
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 <!--[if !supportEmptyParas]--> The photocatalytic degradation of Alcian Blue 8 GX, a copper phthalocyanine cationic dye, has been investigated in aqueous solutions both in heterogeneous and homogeneous systems. Initial colour removal rates in different conditions were calculated in both cases. Influence of amounts of H2O2 and FeCl3 was studied and compared for the two photocatalytic systems. Finally, some conclusions regarding the efficiency of the two photocatalytic processes were es... Autori: Anca Florentina Caliman, Chrysanthi Berberidou, , Liliana Lazar, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25114
Bioreactors with stirred bed of immobilized cells 1. Studies on mixing efficiency
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 The models describing the flow or the heat and mass transfer in stirred bioreactors can be easily adapted for the continuous phase from the stirred bed bioreactors. But, for the immobilized biocatalyst phase, new models have to be established. Therefore, in this paper the influences of the main factors on mixing for a bioreactor with stirred bed of S. cerevisiae immobilized cells in alginate have been analyzed.. The mixing efficiency continuously increases with rotation speed acceleration for th... Autori: Anca-Irina Galaction, Anca-Marcela Lupasteanu, Dan Caşcaval ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25116
Fugitive emissions estimation from petroleum storage tanks
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 Liquid petroleum fuel products such as High Speed Diesel (HSD), Superior Kerosene Oil (SKO), Motor Sprit (MS) are stored in floating roof tanks under atmospheric conditions. The Storage tanks are provided with fittings like rimseals, gauge float wells,sample ports, deck drains and access hatches and becomes the sources of hydrocarbon vapour emissions released to the atmosphere. The net throughput and the annual turnovers of the fuel products and annual average meteorological conditions were cons... Autori: Bandari Chakradhar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25117
Leptospirosis:clinical and environmental aspects of the Ia?i county
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 During 2005 and 2006, in the Infectious Diseases Hospital in Ia?i, there were admitted 26 patients suffering by Leptospirosis. The clinical investigations followed the tests of inflammation, the renal and hepatic proofs, the cefalo-rahidian liquid’s aspect, the ELISA Leptospirosis serum tests etc. The Leptospirosis etiology shown that on 50% of the patients, the affection was owed to L.ichterohemoragiae. The average cost of the treatment for a patient was evaluated as around 1000 Euro. The pa... Autori: Carmen Dorobăţ, Doina Carmen Manciuc, Mihai Nicu, Mihnea Hurmuzache ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25120
Methyl tert- butyl ether occurrence and degradation in water
Environmental Engineering and Management Journal › Vol. 6 › Nr. 2 The use of gasoline oxygenated with MTBE (methyl tert-butyl ether) reduced significantly air pollution (16 - 23% lower emissions of CO and 18% lower emissions of unburned hydrocarbons) but increased water pollution. There is no European or national regulations for MTBE in drinking water except for Denmark, which has set a limit value of 30 µg/ L for MTBE. USEPA proposed a maximum concentration of 20- 40 µg/L. This paper is a review with 70 references on the MTBE production, use, properties and... Autori: Camelia Beţianu, Florina Ungureanu, Loredana Branza, Lucian Vasile Pavel, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25122
Removal of zinc (II) from aqueous solutions by romanian sphagnum peat moss
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 In recent years the removal of toxic substances especially heavy metals from water and wastewater by using of non-conventional low-cost sorbent (industrial wastes and some natural material including microorganisms, plant-derived materials, agricultural products and by-products, mineral oxides, clays) has received much attention. In this paper efficiency of Zn (II) removal from aqueous solutions by sorption onto Romanian sphagnum peat moss was studied in batch experiments involving process parame... Autori: Angelica Kicsi, , Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25126
Development trends of cold plasma reactors in the global context of carbon emission reduction
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 This paper brings a review on the trends of arc plasma reactors, in the new millennium, as an alternative contribution to the reduction of carbon emission at global level. The development of technically and economically feasible plasma processes for the production of hydrogen is analyzed. Literature provides data on achievable intensification of the involved chemical processes comparing with those from the classic reactors. The hydrogen production is studied starting from hydrocarbons and alcoho... Autori: Iulian Rusu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25128
Marine micro and macro algal species as biosorbents for heavy metals
Environmental Engineering and Management Journal › Vol. 6 › Nr. 3 AbstractThis paper reviews some practical aspects of the application of algal biomass for the biosorption of heavy metals from wastewater. The ability of different algal species to remove metals varies with algal group and morphology, with the speciation of specific metals and their competition with others in wastewater, and with environmental or process factors. The scattered literature on the uptake of heavy metals by both living and dead algal biomass - both macroalgae and immobilized microal... Autori: Loredana Branza, Maria Gavrilescu, Matthew J. Dring ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25133
Corporate management tools to address sustainability Challenges. A reflection on the progress and difficulties experienced during the last decade
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 A number of corporate management tools have been developed during the last decades. This has given the impression that industry is in the lead for developing a more environmentally sound and sustainability-adopted future as concerns the production and the products they are working responsible from. This paper includes a short review of some key tools, including cleaner production assessments, life cycle assessments, environmental management systems, environmental management accounting and variou... Autori: Thomas Lindhqvist ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25148
Process water of papermaking: model building and characterization
Environmental Engineering and Management Journal › Vol. 6 › Nr. 4 Actual trends in papermaking concern on the use of recycled fibers and minimizing effluent volume by closing water circuit. Beside environmental and economic advantages, both trends can lead to serious problems in papermaking processes due to contaminants introduced with recycled fibers and their accumulation in closed water system. A key factor to avoid disturbances in the papermaking is to prevent the accumulation of detrimental compounds. In this respect, first it is necessary to find out met... Autori: Dan Belosinschi, Elena Bobu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25134
Floodplain revegetation and river basin restoration
Environmental Engineering and Management Journal › Vol. 6 › Nr. 4 AbstractDuring the modern history the ability of plant roots to consolidate and strengthen the soil was exploited twice in France: once in1867 by Joseph Monier who created the reinforced concrete, and then in 1962 by Henry Vidal who created structured soils.The paper presents the some results obtained on the ecological protection of floodplain in major riverbeds. The aerodynamic modeling represents an efficient, economic and easy way to work with. The main condition of successful experiments is ... Autori: Ana Virsta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25136
Environmental problems of copper complex in Bor area
Environmental Engineering and Management Journal › Vol. 6 › Nr. 4 AbstractThe paper discusses some environmental problems caused by the presence of the copper mining and processing complex in the Bor area (Eastern Serbia). The Bor area is a serious hot spot in Serbia. Unsupervised operation of the mining company RTB Bor, without any protective measures, has led to extreme pollution of the Bor River, the Danube and underground waters, soil pollution with heavy metals, air-pollution with sulfur-dioxide etc. Recommendations are suggested as follows: a sustainable... Autori: Slavka Zeković ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25137
Zero discharge: technological progress towards eliminating pulp mill liquid effluent
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractThe goal of this paper is to examine the potential for ecologically and economically sustainable kraft pulp mills. This paper reviews technical and scientific literature on a wide range of factors that will influence the overall impact of a pulp mill on its total environment. The emphasis is on efforts to achieve "closed-loop," or Totally Effluent Free (TEF) mills which eliminate all liquid effluent and minimize the quantity and environmental impact of air and land discharges. An attempt... Autori: Adrian Puitel, Dan Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25202
Current practice of solid waste management in Malaysia and its disposal
Environmental Engineering and Management Journal › Vol. 6 › Nr. 4 AbstractMalaysia is a country that has recorded a phenomenal economic development success story. One of the most important problems is solid waste due to inadequate management practices. This resulted in an increase in the amount of waste generated. The national average in at 0.5-0.8 kg/person/day, but in the cities the figures have escalated to 1.7 kg/person/day. This paper addresses the current practice of solid waste management and its disposal in Malaysia. Currently, the waste management app... Autori: Abdelnaser Omran, Abdullah Mahmood, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25140
E-waste management
Environmental Engineering and Management Journal › Vol. 6 › Nr. 4 AbstractE-waste is a new term coined in the market of hazardous substances. It has taken a new bourgeoning route since the boom of Information Technology (IT). The problems regarding the transportation, handling and dispose have to be tackled at the earliest as it might cause detrimental effects on environment. Presently in India there is no distinct and lucid regulation(s) regarding e-waste management. There should one stop solution! In the present paper, some of the Technical and E-Management ... Autori: Santosh M. Avvannavar, Surathkal Shrihari ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25142
Effects of water level fluctuation on reproduction and spawning habits of fish species in lake Balaton
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractIn 2004, the types of shoreline were estimated on Lake Balaton, such as rip-rap covered, reedy, concrete or grit. Exact area of a specific face of a rock in the rip-rap covered parts can be determined by digital image analysis. Wetted rocky area of the shore was estimated as a function of water level in 10 cm steps of level changes. Taking into account the reproduction characteristics of the studied fish species (Cyprinidae) the potential substrates for spawning are dominantly the shallo... Autori: Gabor Borbely, Gabor Paulovits, Laszlo G. Toth, Nora Kovats ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25204
Quantification of lead pollution in bucharest area and potential risks for human health
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractLead is unique among the toxic air contaminants that the World Health Organization (WHO) has identified it in several ways. Lead concentration is increasing rapidly in the environment due to increased use in anthropic activity. Lead is released into the atmosphere from metallurgy and siderurgy industry, during coal burning, oil or wastes, from power plants which use solid fuel, from traffic and the building sites. Regardless the exposure mode, the presence of lead in urban air, even in r... Autori: Alina Murariu, Aurelia Meghea, Aurelian Stanescu, Ioana Lacatusu, Mihaela Mihai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25205
Keynote Lectures Energy from municipal solid waste: large-scale incineration or small-scale pyrolysis?
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractMunicipal solid waste (MSW) management is an important and challenging issue for sustainable development. It is also one of themost controversial problems and a subject of an ongoing debate between different interested parties. A particularly controversial issue is MSW incineration (with or without energy recovery) which has in many countries become a socially unacceptable option for dealing with solid waste. On the other hand, the increasing amounts of waste each year demand immediate a... Autori: Adisa Azapagic ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25147
Municipal pricing of water considering that water is both an economic and a social good - a pricing reform with implications for Romania
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 AbstractOne of the basic principles in the European policy to cope with the growing challenge of water scarcity is that water demand management should be considered before opting for additional water infrastructure. The implication of this is that water must be treated as an economic good, which means that the "user's pays' principle"has to be implemented. At the same time there is much political consensus that the water price has to be "equitable". Water can be subsidized without violating the ... Autori: Lars Hansson ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25155
Simultaneous voltammetric detection of organics from wastewater on a copper oxide-copper electrode
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 The amperometric response in dynamic or fixed potential conditions, as cyclic voltammetry (CV) and chronoamperometry (CA) of a copper oxide-copper electrode was studied and proposed for the fast characterization of the simulated wastewaters containing acetylsalicylic acid (ASA) and sulfur compounds, i.e., thioacetamide (TA) as organic pollutant models. The additivity of the individual amperometric signals in the overall response of the electrode for mixed solutions corresponded to over 95% recov... Autori: Aniela Pop, Ciprian Radovan, Florica Manea, Georgeta Burtica, Ilie Vlaicu, Joop Schoonman, Marcel Morariu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25158
Environmental Engineering and Management Journal, Vol. 1 Nr. 1
Environmental Engineering and Management Journal › Vol. 1 › Nr. 1 Contain all the articles from this issue Risk assessment and management - tools for sustainable developmentMaria GavrilescuSustainable alternatives for petrochemical wastewater managementCarmen Teodosiu, Lidy E. Fratila-ApachiteiThe role and the place of oxidant reagents in wastewater treatmentIoan RoscaEnvironmental Psychology, a new direction in the psychological fieldCarmen Catalina IoanChanging concepts of high performance to socially sustainable organizationCostache Rusu, Nerida DavisU... Autori: Abdelnaser Omran ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25166
Environmental Engineering and Management Journal, Vol. 2 Nr. 1
Environmental Engineering and Management Journal › Vol. 2 › Nr. 1 Contain all the articles from this issueEnvironmental analysis by capillary electrophoresis. Atmospheric samplesCamelia Draghici, Gheorghe Coman, Mihaela Sica,Dana Perniu, Mihaela Badea The ecological farms - A solution for sustainable agriculture. II. Position and perspectives of the ecofarms in the frame of the productive agricultural system Stela Axinte, Alina Stanciu, Lorica Axinte The extraction and clean up of organochlorine pesticides and PCB's from water using solid phase ex... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25170
Environmental Engineering and Management Journal, Vol. 2 Nr. 3
Environmental Engineering and Management Journal › Vol. 2 › Nr. 3 Plants as biomarkers, biosensors and biomonitorsModelling of wastewater treatment of a pulp and paper mill for monitoringCatalysts for heterogeneous photocatalysts. Part I. Possibilities to improve photoefficiency through catalysts modificationThe global assessment method of the water qualityAspects regarding the wood certification in RomaniaDecolorizing of pulping effluents by ammonium lignosulphonate oxidationPowder coatings-based organic filmsOn environmental effects of the pulp and paper mil... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25172
Environmental Engineering and Management Journal, Vol. 3 Nr. 1
Environmental Engineering and Management Journal › Vol. 3 › Nr. 1 Contain all the articles from this issueConsiderations concerning ecological footprint of RomaniaNicolae Peiu, Matei MacoveanuEffects of some industrial wastes on different plant species in hydroponics experimentsRuxandra Bodarlau, Carmen-Alice Teaca, Valentin I.Popa The pollution index, a new technical tool in water quality assessmentMihai Nicu, Marcel Perjoiu Solid waste management in pulp productionDan Gavrilescu Curricular development perspectives: education for sustainabledevelopmentCarmen ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25174
Environmental Engineering and Management Journal, Vol. 3 Nr. 2
Environmental Engineering and Management Journal › Vol. 3 › Nr. 2 Contain all the articles from this issueCatalysis for heterogeneous photocatalysis. Part II. Methods for synthesisAnca Florentina Caliman, Ion BalasanianpH influence on sonochemical degradation of cyanides with H2O2 and O2Ioan Iordache, Mircea Teodor Nechita, Nicolae Aelenei, Gabriela Apostolescu, Ioan Rosca Studies of various wastewater nitrification bioreactor types based on modelling and simulationDiana Lupasteanu, Florina Ungureanu, Maria Gavrilescu Wastewater from winemaking industry: monit... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25175
Environmental Engineering and Management Journal, Vol. 3 Nr. 4
Environmental Engineering and Management Journal › Vol. 3 › Nr. 4 Contain all the articles from this issueICEEM /02 PLENARY SESSION:"Environmental Engineering and Management in the Context of Sustainable Development"Design for sustainability (D4S): towards advanced product conceptsHan Brezet, Sacha SilvesterICEEM/02 - ENVIRONMENTAL ENGINEERING SECTION"Water and Wastewater Treatment Technologies"Complex approach to the problem of persistent organic pollutants degradation in water environmentVictor Covaliov, Olga Covaliova, Angela Cincilei, Gilles Mailhot, Pasca... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25176
Environmental Engineering and Management Journal, Vol. 3 Nr. 3 (I)
Environmental Engineering and Management Journal › Vol. 3 › Nr. 3 Contain all the articles from this issueICEEM /02 PLENARY SESSION:"Environmental Engineering and Management in the Context of Sustainable Development"Green technology foresight of high technology: Hype of potentials - The challenges from nanotechnology, Biotechnology and ICTMichael S?gaard J?rgensenIntrinsic properties of noble metals in catalytic selective reduction of NO by propene in lean burn conditionsAnne Giroir-Fendler, Helleh Saadallah, Adela HaletaICEEM/02 - ENVIRONMENTAL ENGINEERING ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25178
Environmental Engineering and Management Journal, Vol. 4 Nr. 2
Environmental Engineering and Management Journal › Vol. 4 › Nr. 2 Contain all the articles from this issueCatalysis for heterogeneous photocatalysis. Part II. Methods for synthesisAnca Florentina Caliman, Ion BalasanianpH influence on sonochemical degradation of cyanides with H2O2 and O2Ioan Iordache, Mircea Teodor Nechita, Nicolae Aelenei,Gabriela Apostolescu, Ioan RoscaStudies of various wastewater nitrification bioreactor types based on modelling and simulationDiana Lupasteanu, Florina Ungureanu, Maria Gavrilescu Wastewater from winemaking industry: monitor... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25179
Environmental Engineering and Management Journal, Vol. 4 Nr.3
Environmental Engineering and Management Journal › Vol. 4 › Nr. 3 Contain all the articles from this issueLignin in crop cultivations and bioremediationAlfred Abaecherli, Valentin I. PopaMaterials for intermediate-temperature solid oxide fuel cells and for proton exchange membrane fuel cellsAnnemarie Huijser, Joop SchoonmanAre interfacial biocatalysts important tools for nonpolluting technologies? 2. Immobilization of lipases and their representative applications Brindusa Dragoi, Emil DumitriuUASB treatment of fruit canning wastewater: pilot-scale invest... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25180
Environmental Engineering and Management Journal, Vol. 4 Nr.4
Environmental Engineering and Management Journal › Vol. 4 › Nr. 4 Contain all the articles from this issueNitrous oxide decomposition over Fe-ZSM-5 catalysts prepared by different methodsMircea Teodor Nechita, Ioan Rosca, Daniel Sutiman, Gabriela Apostolescu, Ioan Iordache Geometrical correlation method for global estimation of the ecosystem stateCamelia Popa, Cornel Cojocaru, Matei MacoveanuImmobilized lipases as biocatalysts for organic synthesis 1. Transesterification of ethyl acetate with alcohols in the presence of free Candida antarctica lipase BBrindusa... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25181
Environmental Engineering and Management Journal, Vol. 3 Nr. 3 (II)
Environmental Engineering and Management Journal › Vol. 3 › Nr. 3 Contain all the articles from this issueICEEM/02 - ENVIRONMENTAL ENGINEERING SECTION"Treatment Technologies for Gaseous Fluxes"Surface chemistry studies on molybdena–alumina catalystTatiana Yuzhakova, ?kos R?dey, Endre Domokos, J??zsef Kov??cs, Monica Caldararu, Cristian Hornoiu, Mariana Carata, G.Postole, Cornel Munteanu, Larisa Strukova, Jozse FazakasHebicidal behaviour of a new N,N'- biquaternary salt of 4,4'- bipyridineServilia Oancea, Marinela Irimia, Gabriela Carja, Anton Airinei, Nicu... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25189
Environmental Engineering and Management Journal, Vol. 6 Nr. 5
Environmental Engineering and Management Journal › Vol. 6 › Nr. 5 Include urmatoarele articole:? Keynote Lectures Energy from municipal solid waste: large-scale incineration or small-scale pyrolysis?? Electrical properties of SnO2-Pt/Al2O3 in reduction atmosphere? Corporate management tools to address sustainability Challenges. A reflection on the progress and difficulties experienced during the last decade? Emerging academic responsibilities and opportunities for promoting regional sustainability? Challenges for integrated water resources management... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25200
Environmental Engineering and Management Journal, Vol. 9 Nr. 1
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 ? Kinetics considerations concerning the oxidative degradation by photo-fenton process of some antibiotics
? Catalytic wet hydrogen peroxide oxidation of 4-chlorophenol over iron-exchanged clays
? Researches on the negative effects assessment (slugging, clogging, ash deposits) developed at the biomass-coal co-firing
? Contribution to the study of the environmental heritage of a former chemical plant
? Impact of chemicals on derivatives with important therapeutic activity in C... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25376
Environmental Engineering and Management Journal, Vol. 7 Nr. 1
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 Include urmatoarele articole:? "Waste not, want not" a study of household attitude toward recycling of solid wastes? A kinetic model for the crystal violet mineralization in water by the electro- fenton process? Development of a coagulation/flocculation predictive model for turbidity removal from tehran water treatment plants? Removal of cadmium (II) from aqueous solutions by sphagnum moss peat: Equilibrium study? Environmental sustainability based on fuzzy models? Impact of dust emi... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25207
Environmental Engineering and Management Journal, Vol. 7 Nr. 2
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 Include urmatoarele articole:? Synthesis of Ferrierite/ZSM-35 type zeolite with ethylenediamine as template? Recovery of p-hydroxybenzoic acid from wastewaters by reactive extraction 1. Extraction mechanism and influencing factors? Relationships between metals extent and cytological characteristics at Prunus persica L. pollen? Smoke Emissions From Diesel Vehicles: A Case Study? Carbon dioxide generation - implications for romanian pulp and paper industry ? Enhanced decolorization of ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25208
Environmental Engineering and Management Journal, Vol. 7 Nr. 3
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 Include urmatoarele articole:? Cost sensitivity analysis by Monte Carlo simulation? Mathematical modeling of gas drying by adsorption? Methyl isobutyl ketone combustion over Pt/Al2O3 catalyst? Distribution of oxygen transfer rate in stirred bioreactors with simulated broths? Unsteady heat transfer inside an elliptic cylinder? Triphasic external-loop airlift reactors. Hydrodynamic and dispersion studies? Sustainable combined utilization of renewable forest resources and coal in Roma... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25209
Study concerning the influence of oxidizing agents on heterogeneous photocatalytic degradation of persistent organic pollutants
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractIn this paper, the application of the heterogeneous photocatalysis in degradation of a cationic copper phtalocyanine dye, used as model of persistent organic compound is investigated by assessing the efficiency of the process. The influence of hydrogen peroxide on the photocatalytic process is studied using two types of commercial catalysts, such as TiO2 Degussa (88% anatase, 20% rutile) and TiONa Millennium (100% anatase). Another electron acceptor, FeCl3 is also used for investigation ... Autori: Anca Florentina Caliman, , , Ioannis Poulios, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25211
Nonmarket valuation of acequias: Stakeholder analysis
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractFrom a traditional market economy perspective, the productivity attained when water and land is used for acequias is much lower than the productivity achieved when applying these same resources to urban and industrial uses. An analysis of key stakeholders has indicated that there are cultural and environmental attributes of acequia agriculture landscapes that are not captured in the market-assigned value of acequias. This analysis revealed the motivations behind the value placed on acequ... Autori: Joseph Ulibarri, Steven Archambault ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25212
Methods and procedures for environmental risk assessment
Environmental Engineering and Management Journal › Vol. 6 › Nr. 6 AbstractThis work presents the state of the art of qualitative and quantitative risk assessment methodologies in a variety of fields. Because risk exists in all ranges of human activity, both private and professional, risk assessment is an attempt to analyze precipitating causes of risk in order to more efficiently reduce its probability and effects. Numerous methodological guidelines within the field of environmental science exist to provide guidance for a risk assessment program, although the ... Autori: , , Florentina Anca Căliman, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25226
Waste not, want not" a study of household attitude toward recycling of solid wastes
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractSolid waste management in Malaysia has become an increasingly important task of local government authorities over the recent years as a result of urban population growth, industrialization and an increase in quantity and variation in the types of waste generated. For this reason the government of Malaysia through the Ministry of Housing and Local Government has taken various measures to promote recycling amongst its population. However, a recycling program is only successful if household... Autori: Abdelnaser Omran, Adam D. Read ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25228
Environmental sustainability based on fuzzy models
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractEnvironmental pollution has become much more of a problem in recent years than it has been in the past. Pollution caused by garbage disposal, toxic substances sloping from different sources has attracted a great deal of attention and can be a great inconvenient for the environment and for the people. In the face of growing social expectations encompassing both standards of living and environmental concerns, the idea of sustainable development has become popular among governments, industr... Autori: , Marius Paslaru, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25232
Impact of dust emission on plant vegetation in the vicinity of cement plant
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractEnvironment is a major issue which confronts industry and business in today's world on daily basis. Different industrial activities are degrading various environmental components like water, air, soil and plant vegetation. Cement industry is one of the 17 most polluting industries listed by the Central Pollution Control Board (CPCB). The Jaypee Rewa Cement Cement industry, Rewa, Madhaya Pradesh is located between 24o 33' North longitude and 81o 10' east latitude and is situated at Jay Pr... Autori: Baby Sunisha, Nagpure Ajay Singh, Shrivastava Preeti, Shukla Ravindra Nath, Shukla Sudheer Kumar, Singh Deepali, Vivek Kumar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25233
Ecological management for textile wastes processing
Environmental Engineering and Management Journal › Vol. 7 › Nr. 1 AbstractThe zero waste is a policy, a way, an aim and represents a new approach planned for the 21st century, which includes the resource preservation principles, pollution reducing, increasing of the opportunities to create new jobs and providing the highest degree of economic stability.The strategy of developing the Romanian textile industry sub-sectors envisages the achieving of certain superior production indices, from a physical and value point of view, in 2010, a quantitative increase of t... Autori: Eftalea Carpus, Emilia Visileanu, Razvan Scarlat ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25236
Pulsed plasma treatment of surface water using lowtemperature corona reactor
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractThe disinfection of water containing microorganisms by exposure to pulsed-discharge plasma using a low-temperature gas-liquid hybrid discharge (HD) reactor was studied.The HD reactor consists of a plexiglas cylinder containing the liquid of high voltage electrode above liquid' s surface and grounded electrode submerged in the liquid. The HD could produce both arc discharges in gas and liquid phases. The high-energy plasma arc produces a pressure shock wave, which kills the targeted micro... Autori: Gamal M. El-Aragi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25242
Methodology to conserve energy in surface aerators
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractBased on the simulation equations, which were developed earlier (Rao, 1999 and Rao et al., 2007) relating the oxygen transfer coefficient k (= KLa20 (?/g2)1/3) with theoretical power per unit volume of water X (= N3D2/g4/3?1/3) and k with actual powerconsumed by the surface aerators per unit volume PV (= P/(V??(g?)1/3), methodology has been demonstrated to the save the energy consumption, defined by ?? (=PV /k), where KLa20 is the overall oxygen transfer coefficient at 20oC, ? is kin... Autori: Achanta Ramakrishna Rao, Bimlesh Kumar, Neelam Verma ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25243
Evaluation of lead pollution in Bucharest. Part II: Theoretical aspects of risk management strategy for impact of lead on human health
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractDespite its well known toxic effects, lead continues to be a part of modern life. Lead concentrations in the environment have increased steadily throughout history, with a huge increase when lead became a common additive to paint and gasoline. Although the use of lead in gasoline and most paint has been banned in many countries, there are still many ways for lead to be released on the environment. The effects of lead on human health have been the subject of significant international exam... Autori: Alina Murariu, Aurelia Meghea, Ioana Lacatusu, Mihaela Mihai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25244
Enhanced decolorization of reactive blue 19 dye from synthetic textile wastewater through uv photolysis in alkaline conditions
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractLaboratory scale experiments were conducted in order to investigate the photolysis of Reactive Blue 19 (RB 19) dye using UV as the irradiation source in alkaline solution. The effects of operating parameters such as, pH, initial dye concentration, UV dosage, hydrogen peroxide and oxygen have been evaluated. The results indicate that the UV photolysis process in alkaline solution is ideal for decolorizing of RB 19 and it can be taken as a starting step to establish the economical feasibil... Autori: Abbas Rezaee, Ebrahim Hajizadeh, Gholamreza Mosavi, Mohamadtaghi Ghaneian, Seyyed Jamalodin Hashemian ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25245
Recovery of p-hydroxybenzoic acid from wastewaters by reactive extraction 1. Extraction mechanism and influencing factors
Environmental Engineering and Management Journal › Vol. 7 › Nr. 2 AbstractThe comparative study on reactive extraction of p-hydroxybenzoic acid with Amberlite LA-2 and D2EHPA in two solvents with different polarity (n-heptane and dichloromethane) indicated that the extractant type and solvent polarity control the extraction mechanism. Thus, the reactive extraction with Amberlite LA-2 occurs by means of the interfacial formation of an aminic adduct with three extractant molecules in low-polar solvent, or of an salt with one extractant molecule in higher polar s... Autori: Anca-Irina Galaction, Dan Caşcaval, Maria Cămăruţ ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25250
Improving energy efficiency in water distribution systems based on water consumption profiling
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractTogether with other public utilities, water supply systems management aims to provide an efficient operation of the system and lower operational costs. In complex water distribution systems there is a large variety of consumers, which differ from one another not only by values of inflows, but also by how this inflows vary from hour to hour. This paper presents a self-organizing based approach to the problem of classification of water consumption profiles from the nodes of a water distrib... Autori: Gilda Gavrilaş, Mihai Gavrilas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25254
Sorption of cationic dyes from aqueous solution onto natural clay. Equilibrium and kinetic study
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractEquilibrium and kinetic studies regarding the sorption of the copper phtalocyanine dye Alcian Blue 8 GX were carried-out within batch experiments. The sorption equilibrium revealed that the pure natural clay can uptake up to 18 mg of Alcian Blue 8 GX per 1 g mass of clay. The cationic dye sorption was best fitted by Freundlich model that is applicable to sorption on heterogeneous surfaces (surfaces with non-equivalent energetic sites). The pseudo-second order kinetic model may be efficie... Autori: , Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25257
Polyacrylonitrile ultrafiltration membranes for recycling of refinery and petrochemical effluents
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractHollow fiber polyacrylonitrile membranes with three different MWCOs (i.e. 6, 13, 50 kDa) have been tested for dead-end ultrafiltration of a combined refinery and petrochemical secondary effluent. The effluent treatment envisaged further recycling as cooling water make-up following an ultrafiltration/reverse osmosis advanced treatment scheme. Criteria for ultrafiltration evaluation included flux restoration by backwashing, turbidity removal efficiency and water recovery. The membranes cou... Autori: , Lidy E. Fratila-Apachitei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25258
Synthesis of highly ordered titanium-containing SBA-15 mesoporous silicas for catalytic eco-friendly oxidations
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractMesoporous Ti-SBA-15 materials have been synthesized up to a Si/Ti ratio of 20 using a two-step pH adjusting method. Low angle X-ray diffraction and diffuse reflectance UV-Vis spectroscopy revealed that the optimal pH value to synthesize highly ordered mesoporous solids having Ti atoms primarily in tetrahedral coordination environments is around 7.5. The nitrogen physisorption and TEM indicated also ordered mesostructures having relatively large surface areas and uniform mesopore size di... Autori: Adrian Ungureanu, Alexandru Chirieac, Brindusa Dragoi, Cezar Catrinescu, Emil Dumitriu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25263
Study on new complex compounds of Ti(IV) and Zr(IV) in aqueous solutions: synthesis, stability and application in cleaner technologies of natural leather
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractIn this paper, the study of synthesis and stability in aqueous solutions of new coordination compounds of Ti(IV) and Zr(IV) with ligand N-hydroxy-succinimide is presented. The salts: TiOSO4·2H2O and ZrOCl2·8H2O used for obtaining the studied coordination complexes, can derive from recycling metallic residues resulted in mechanical technologies applied for titanium and zirconium in S.C. ZIROM S.A. Giurgiu.The new complexes were synthesized in aqueous solutions and stability were study u... Autori: Adrian Cailean, Daniel Sutiman, Doina Sibiescu, Gabriela Apostolescu, Ioan Roşca, Marian Crudu, Mihaela Vizitiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25265
Sustainable combined utilization of renewable forest resources and coal in Romania
Environmental Engineering and Management Journal › Vol. 7 › Nr. 3 AbstractAs answer to European Community politics, in Romania the researches for waste reworking and ecological treatment are developing. The researches are focusing on wood wastes for its recovery in energy purposes. The purpose is the enlargement of superior coal utilization area obtained from Jiu Valley coal field, for increasing the efficiency of heating installations for domestic consumption, concordantly to European and Romanian pollutions regulations.Combined utilization of the fuel compos... Autori: Camelia Bădulescu, Eugen Traistă, Gheorghe Lăzăroiu, Maria Orban, Valeriu Plesea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25267
Municipal solid waste management in developing countries: A perspective on Vietnam
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractEnvironmental pollution has posed and continues to cause specific to and complicated problems. The unsustainable production and consumption patterns result in waste that can harm health and the environment. Because of rapid population growth and urbanization, industrialization process and rural to urban migration, solid waste management is becoming more and more critical now, being a problem in rapidly growing urban centers in developing countries. All these threaten the health and well-... Autori: Abdelnaser Omran, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25275
Research on the impact induced in the environment bymilk processing industry 4. The impact induced by the ecological dairy farm Panaci (Suceava)
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractThe investigation focused on the impact on the environment caused by a dairy farm which supplies SC CAMYLACT LTD Panaciwith raw materials, a milk processing unit whose impact on the environment was analyzed. The material balance for the activityon the farm was resized and, thanks to this, the synthetic indicators of the impact on the environment, such as the specificinfluents of materials and specific effluents could be calculated.... Autori: Constantin Hutupas, Mihai Nicu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25276
Analysis of fluxes between industrial branches using technological coefficients
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractIn the theory of relations between economical branches, a variety of balance of connections between the branches (BLR) models is used, whose theoretical construction is based on a series of hypotheses according to the purpose of each model. In this paper models which make use of the natural units are applied in the analysis of fluxes between industrial branches. ... Autori: Aurel Burciu, Ionel Bostan, Petru P. Condrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25277
Electricity load prediction for water supply systems
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractThe efficient management of electricity consumption is an important tool to approach the basic objectives in the field of energy efficiency and environment protection. The paper describes an artificial neural network (ANN) approach to the problem of electric load profile prediction for a water supply system. The analysis was directed towards two main objectives: to determine the optimum input structure of the ANN with respect to the electric load profiles’ history and to determine the ... Autori: Gilda Gavrilaş, Mihai Gavrilas, Ovidiu Ivanov ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25278
Sustainable development and environmental assessment in the Bor basin
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractIn Serbia, the more recent sustainable development policy faces a number of serious problems, which are emphasized by the slow pace at which post-socialist r,eforms have been performed. Environmental aspects of transition reforms have hardly been tackled so far, the copper complex in the area of Bor (Eastern Serbia) being a notable example of such a delay. In effect, the practice of a more rigorous and systematic ex ante evaluation of possible future development scenarios is at its very ... Autori: Miodrag Vujosevic, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25282
Eco-management and the paradigm of Self-regulation
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractSelf-regulation can be defined as a public scheme in which private parties volunteer to meet standards established by public authorities; this is the case of the European Commission's eco-management and audit scheme (EMAS). The EMAS aims at promoting improvement in industry's environmental performance by the implementation of company-level environmental management systems, and the systematic evaluation of performance by accredited auditors. Self-regulatory initiatives have in common a co... Autori: Voicu - Dan Dragomir ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25283
Study of the separation process of tartaric acid by ion-exchange with solid anionites Amberlite IRA-67 AND Amberlite IRA-410
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractThe present work describes an investigation of process of ion-exchange separation of tartaric acid in model systems. These investigations will be used for the separation of tartaric acid from secondary wine products. Their valorisation allows obtaining valuable compounds, as well as decreasing the huge quantities of wastes accumulated at wine making factories.As ionic exchangers, there have been used weakly basic anion exchanger Amberlite IRA-67 (tertiary functional amine groups) and str... Autori: Aliona Mereuţa, Gheorghe Duca, Herbert G. Boechzelt, Natalia Marchitan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25286
Low-carbon steels corrosion in water-contaminated organic mixtures of adipic acid and methanol
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractThe corrosion resistance of three types of low-carbon steels in water-contaminated mixtures of adipic acid and methanol was investigated. The concentration of water in the organic mixture was progressively raised from 1% to 5%, while the carbon concentration in the steel samples varied from 2% to 4%. Infrared spectroscopy (IR) and X-ray diffraction (XRD) were used to investigate the insoluble corrosion products. Based on the weight losses measurements, on the polarization curves and on t... Autori: Adrian Cailean, Daniel Mareci, Daniel Sutiman, Mircea Teodor Nechita ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25287
Recovery of some inorganic compounds from the sludges resulted after the leaching of uranyl ions from uranium ores
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractIn this work it had been tested the recovery of some compounds like: Fe2O3, TiO2, PO4 3- ions, Al2O3 from the sludges, which result in the industrial facilities for output of pure uranium dioxide. Solubilization of the chemical compounds from the uraniumwastes was performed in strong acidic media, using adequate methods.... Autori: Alexandru Cecal, Doina Humelnicu, Romeo Iulian Olariu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25288
Environmental Engineering and Management Journal, Vol. 9 Nr. 3
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 ? Denitrifying activity of activated sludge in suspension and in biofilm? Denitrifying potential of an activated sludge derived consortium? Biosorption of hexavalent chromium based on modified Y zeolites obtained by alkali-treatment? Identifying anaerobic digestion models using simultaneous batch experiments? Olive mill wastewater as a renewable resource? Influence of innoculum acclimation in the biodegradation rate and estimated biodegradbility of cow manure, food waste and oil? Studies on the ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25378
Advanced Cd2+ removal on dispersed TioO2-fly ash
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 AbstractThe paper proposes a suitable solution for a one step treatment process of the wastewaters resulted from the textile industry, using a mixture of anatase and modified fly ash. The dyes photo-degradation on TiO2 anatase is well known. The use of fly ash in advanced wastewater treatment, for heavy metal adsorption, represents an environmental friendly process, efficient if the fly ash surface charge is controlled by solubilisation/reprecipitation. The first step in implementing the single ... Autori: Anca Duta, Maria Visa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25292
Environmental Engineering and Management Journal, Vol. 7 Nr. 4
Environmental Engineering and Management Journal › Vol. 7 › Nr. 4 Include urmatoarele articole:? Removal of nickel from aqueous solution by Nordmann FIR (ABIES Nordmanniana (STEV.) SPACH SUBSP. Nordmanniana) cones? Determination of heavy metals in extracts and macerates from garden flowers? Biological phosphorus removal in a high performance single reactor ? Advanced Cd2+ removal on dispersed TioO2-fly ash ? Remediation techniques for contaminated soils? Separation of uranium(vi) from soils by extraction in aqueous PEG (1550) - Na2SO4 - Na2CO3 two-... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25296
Biomass power for energy and sustainable development
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractThe paper discusses some aspects concerning the utilization of biomass as a bioenergy resource worldwide and in Romania, since biomass is considered a sustainable, potentially environmentally sound and a replenishable resource. The biomass categories for bioenergy are analyzed, considering the factors which influence its availability. Biomass energy potential and current use in different regions as well as in Europe is accounted. Also, biomass power as an important alternative for ... Autori: Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25298
Opportunities and barriers for development of biogas technologies in Romania
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractThe development of technologies for waste treatment, simultaneously with minimizing greenhouse gas emissions, has become a matter of great concern at global level. Biogas systems can help in the fight against global warming by avoiding to escape methane from organic waste, into the atmosphere. Biogas technology is of great benefit to the end-users and the environment by energy, compost and nutrient recovery. Romania is a country with a huge biomass potential. Implementing of biogas techn... Autori: , Corina Alice Babutanu, Gheorghe Băran ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25300
Combustion of pitcoal-wood biomass brichettes in a boiler test facility
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractThe use of composite fuels using pitcoal and sawdust represents a high perspective. The paper deals with the experimental results focusing on the combustion efficiency of composite fuel briquettes and on the polluting emissions level. A special care is given to the determination of boiler efficiency and to the establishment of exploiting economic conditions, like the supply, cleaning etc. The research of the combustion of pitcoal-wood biomass briquettes is conducted on a 55 kW boiler.A n... Autori: Gabriel Negreanu, Gheorghe Lăzăroiu, Ion Oprea, Ionel Pisa, Lucian Mihăescu, Radu Indries, Tudor Prisecaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25301
Microbial cellulose as support material for the immobilization of denitrifying bacteria
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractThe purpose of this study was to investigate the immobilization of denitrifying bacteria on microbial cellulose (MC) for biological denitrification. A novel denitrifying bacterium, Pseudomonas stutzeri, was immobilized in microbial cellulose and introduced into an up flow packed bed reactor in order to remove nitrate from synthetic influent. The MC presented the high biomass concentration throughout the experiment, achieving 3.4 mg biomass/g support. The efficiency of the system for deni... Autori: Abbas Rezaee, Hatam Godini, Hossein Bakhtou ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25302
Valorification of herbs in phytotherapy - an alternative of chemical treatments in agriculture
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractIn agricultural culture there are numerous weeds diminishing the production which are controlled by several methods. The most common and efficient method with the modern agriculture is the chemical method of controlling weeds, using a large range of herbicides. A great part of these herbicides have long lasting remanence, even over three years. A great part of the active substances of the herbicides pollute the soil and subsequently the waters, sometimes with disastrous action for the en... Autori: Brindusa Robu, Sabina Robu, Teodor Robu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25303
Integration of biorefinery clusters towards zero emissions
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractDepletion of world recourses, increasing pollution, and climate change make us shift from linear economy to system economy - an economy of technologies integrated to reach a non-polluting zero emissions production system. Transition to renewable resources requires replacement the present crude oil refinery by biomass refinery. Along with conventional biomass refinery technologies bioengineering and nano-technologies become significant players of systems in the design of clusters of integ... Autori: Arnis Kokorevics, Janis Abolins, Janis Gravitis ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25304
Biomass - an important renewable source of energy in Romania
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractAt the beginning of 3rd century the humankind finds at a crossroads. Daily, people assist at miracles, live in a time of change, both in economical and rational areas. Energy demand is expected to increase steadily over the next couple of decades, as income levels and economic output expand, especially in the new democratic states after ’90th.Renewable energy resources represent a new opportunity in Romania, with less participation in the market than those forums outside of the country... Autori: Camelia Ciubota-Rosie, Maria Gavrilescu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25305
Energy from biomass in pulp and paper mills
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractPulp and paper mills generate various quantities of energy-rich biomass as wastes, depending on technological level, pulp and paper grades and wood quality. These wastes are produced in all stages of the process: wood preparation, pulp and paper manufacture, chemical recovery, recycled paper processing, waste water treatment. Energy recovery from wastes of different origin has become a generally accepted alternative to their disposal. Pulp and paper industry expresses an interest in adap... Autori: Dan Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25307
Biomass - A source of chemicals and energy for sustainable development
Environmental Engineering and Management Journal › Vol. 7 › Nr. 5 AbstractNowadays, energetic utilization of biomass, biotechnology attracts a big attention not only from the environmental point of view but also have a social, political and economical impact. According to the Directive 2003/30/EC of the European Parliament and the European Council the emission of greenhouse gases can be reduced by 49% using bioethanol produced by a manufacturing process based on corn, instead of crude oil based fuels. Moreover in Hungary from 1st of July 2007 only gasoline wit... Autori: , , Gyula Marton, , Jenő Hancsk, Tatiana Yuzhakova ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25312
Environmental issues from an economic perspective
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe paper discusses some aspects concerning environmental issues considered from an economic perspective, since economic globalization as well as ecological globalization follows new ways of conditioning each other. In the past the most important thing was the impact of the environmental protection pressure - soil deterioration, water system, the atmosphere and the forests - uponeconomical perspectives. In the recent past years the society had to face the quick growth of the economical i... Autori: Ionel Bostan, Petru Condrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25316
Overview of ex situ decontamination techniques for soil cleanup
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe paper is a short review on the soil decontamination applying ex-situ techniques. Some sources and pathways of soil contamination are discussed. It was revealed that available techniques for soil decontamination can be divided in two parts, depending on where the action have place: in-situ or ex-situ. Also, depending on the nature of the process, these techniques can be biological, physical-chemical and thermal. In order to decontaminate soils properly, the primary contaminants ... Autori: Lucian Vasile Pavel, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25318
Equations for alluvial soil storage coefficients
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe paper defines the average and local soil storage coefficients, for a soil with relatively shallow water table. By means of an adequate law for the suction distribution on soils level and certain parametrical models for the moisture retention curve of soil, the analytical equations for these storage coefficients were determined. Theoretical results are to be applied for a case study and on the basis of a pertinent analysis, and some recommendations were made for the practical use of f... Autori: Daniel Toma, Esmeralda Chiorescu, Stefan Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25319
The Gorgon method as a tool in sustainable behavior and development
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe paper proposes a solution for life quality improvement by changing the individual’s mentality and creating a sustainable behavior. The solution consists of the development of a psycho-behavioral pattern starting from the Gorgon experiences. The latter are hurtful experiences in the individual’s life the effect of which is a complete or partial emotional components blockage. The hindrance of these components performance affects the individual’s behavior, placing him or her in a ... Autori: Brindusa Robu, , Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25323
Environmental engineering education in Iran: needs, problems and solutions
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractSince public concerns about the environmental issues have increased, several universities all over the world have been establishing environmental engineering programs. Environmental engineering programs in Iran at graduate level have been developed since 1990. At the present time, there are ten universities are presenting environmental engineering programs at graduate levels. The environmental engineering education systems of almost all Iran universities are quite traditional. As the env... Autori: Ahmad Tahershamsi, , Reza Maknoon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25324
Identification, communication and management of risks relating to drinking water pollution in Bihor county
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractAt global level, the microbiological quality of water is a matter of concern, since diarrhoea represents the second cause of mortality. In addition, nitrates represent a significant problem and their high concentration - above the accepted limits - in drinking water is frequently encountered in Romania. Water samples have been analyzed in accordance with the methodology recommended by The Public Health Institute Bucharest. 78.15% of the water samples evaluated during the interval 2004-20... Autori: Claudia Sarmasan, Lucia Daina, Sonia Draghici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25325
Earth oil extraction - major environmental pollution source
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe work presents the negative environmental impact produced by an extraction of crude oil activity. To highlight and quantify the negative effects on the environment produced from such activity, the experimental part has been focused on evidence of samples of soil, water from groundwater aquifers and surface, and the air emissions. The values of quality indicators are presented in graphs and tables, highlighting an activity with all major impact on the environment.... Autori: Aurica Grec, Corneliu Maior ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25326
Management of waste in rural areas of Gorj county, Romania
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractOn the top of the ecological priority list in Romania, waste management is on the third place following the problems regarding the surface and underground water pollution, as well as that of the atmosphere. The clean-up of the landscape represents an issue largely discussed in Romania. The paper presents the advantages of waste management for the landscape, which includes: waste gathering and transfer, waste selection, waste biological treatment and the storage.Some analyses of the const... Autori: Camelia Capatana, Claudia Maria Simonescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25331
Studies regarding surface water treatment using a microfiltration-ultrafiltration pilot plant
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractIn this paper the results of surface water treatment process for drinking purpose are presented, using the microfiltrationultrafiltration process. The experimental studies were carried out using a microfiltration-ultrafiltration pilot plant and raw water from Bega River, Timisoara as feed. To assess process performance, the water quality, e.g., turbidity, total coliforms and hardness parameters were determined for two different operating regimes subjected to filtration time. A good effic... Autori: Camelia Podaru, Cristian Danielescu, Florica Manea, Georgeta Burtica, Ilie Vlaicu, Viorel Patroescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25332
Removal of acid red 398 dye from aqueous solutions by coagulation/flocculation process
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 AbstractThe removal of Acid Red 398 (AR398) dye from dye-containing solution using coagulation/flocculation process with polyaluminum chloride (PAC) and Alum was investigated. The effect of different parameters involving pH, dosage of coagulant, initial dye concentration, and bentonite as a natural coagulant aid was examined. According to the obtained results, the optimum pH, at which the maximum removal occurred, was about 4 and 5 for PAC and Alum, respectively. However, PAC performed efficient... Autori: Maryam Hasani Zonoozi, , Mokhtar Arami ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25335
Determination of organic compounds from different types of coffee by Hplc and Gc-Ecd analysis
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 A study was conducted to investigate the organic compounds residues in different types of coffee from market inThe detection limits ranged from 0.02 ng/kg to 0.04 ng/kg and quantification limits were 0.2 ng/kg. Calibration and recovery studies gave satisfactory results. Concentrations of OCPs in coffee samples varied from 0.001 mg/Kg to 0.007 mg/Kg. The methods provide a rapid and accurate determination of these organic compounds in coffee samples.... Autori: Gabriela Stanciu, Mariana Popescu, , Simona Dobrinas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25338
Environmental Engineering and Management Journal, Vol. 9 Nr. 2
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 - Artificial intelligence applications in the atmospheric environment: status and future trends- Kernel methods and neural networks for water resources management- Environmental decision support systems based on models and model-based reasoning- Towards an intelligent tutoring system for environmental decision makers- SBC-MEDIU: A multi-expert system for environmental diagnosis- Fast and accurate residential fire detection using wireless sensor networks- Validation of a knowledge-based risk mode... Autori: http://www.ecozone.ro/reviste.php?RID=25377
Environmental Engineering and Management Journal, Vol. 7 Nr. 6
Environmental Engineering and Management Journal › Vol. 7 › Nr. 6 Include urmatoarele articole:? Composite membranes with cross-linked matrimid selective layer for gas separation? Determination of organic compounds from different types of coffee by Hplc and Gc-Ecd analysis? An integrated assessment of the suitability of domestic solar still as a viable safe water technology for India? Investigations on the possibility of natural hemp fibers use for Zn(II) ions removal from wastewaters? Removal of acid red 398 dye from aqueous solutions by coagulation... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25340
A computing model for optimal sizes of protected areas considering animal bioindicators
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThe authors propose a calculation example of the optimal sizes regarding the protected areas, taking into account the biological, ecological and behavioral needs of the animal species which are situated in the top of the trophic pyramid. Carnivores and great herbivores are considered the best bioindicators for the Romanian ecosystems.... Autori: Corneliu Maior, Petru Aurel Darau, Viorel Soran ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25342
Removal of some environmentally relevant heavy metals using low-cost natural sorbents
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract The sorption of metal ions from aqueous solution plays an important role in water pollution control and in recent years there has been considerable interest in the use of low-cost adsorbents. Many researchers have tried to exploit naturally occurring materials as low-cost adsorbents, for removing of heavy metals. In this article the removal performance of various low-cost adsorbents derived from agricultural waste or natural material is evaluate... Autori: Raluca Maria Hlihor, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25379
Titanium dioxide extraction from paint sludge of automotive industry Case study: Paint sludge of Saipa paint shop
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractPaint sludge of automotive industry contains heavy metals and other toxic substances. Due to this matter, it has a high pollution potential. Incorrect disposal of paint sludge led to kinds of environmental pollution. Recycling and reusing of wastes can be one of the best solutions for decreasing of pollutant entrance to environment. The purpose of this study was to present a new method of extracting the main components of paint sludge, for determining concentration of elements in paint s... Autori: Azadeh Akhavan Bloorchian, Seyed Mostafa Khezri ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25346
Survey on the dynamic of urban air pollution in the municipality of Craiova, Dolj county
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractUrban air pollution is responsible for the highest burden of environmentally related diseases in Europe. Air pollutants with strongly indicated respiratory health effects are particulate matter, nitrogen oxides and sulfur dioxide. The retrospective ecological survey has taken into account the urban air pollution with sulfur dioxide (SO2), nitrogen dioxide (NO2), ammonia (NH3) and particulate matter (PM10). The analyzed data show that after applying the European regulations regarding the ... Autori: Catalin Adrian Petrisor, Dorin Petrişor, Lucreţiu Radu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25348
The Algae Blooms phenomenon - A mathematical model
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 Pollution with sources from towns and industrial centres affect considerable the ecosystem waters. An accumulation of nutrients favourable to the growth of certain tiny marine organisms called phytoplankton stimulates their rapid reproduction in the water.These plankton blooms appear as patches on the surface of the water. The consequence of this process is the diminishing of the amount of oxygen from water (in the process of decompose the algae), the decease of aquatic animal and the multiply o... Autori: Laura Stefanescu, Laura Ungureanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25351
Environmental impact assessment induced by an industrial unit of basic chemical organic compounds synthesis using the alternative method of global pollution index
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThe technological process of basic chemical organic compounds synthesis is included among the economic activities that can affect the environment quality. The environmental impact of chemical organic synthesis is evaluated using the alternative method of global pollution index that considers the concentric circles graphical methodology proposing a scale of the arithmetic mean values for the evaluation scores of each environmental components (e.g. water resources, gaseous emission, soil a... Autori: Carmen Zaharia, Ilie Murăraşu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25352
Solid waste management practices in Penang state: A review of current practices and the way forward
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractSolid waste management problems proved to be complex in origin and in solution. The rapid economic development and population growth experienced by the State of Penang, Malaysia have resulted in a tremendous increase in the quantities and types of solid wastes generated. Domestic solid waste is the most visible consequence of this economic development. However, considerable amounts of this waste could be recycled and reutilized if separated. This paper reviews the current status of solid... Autori: Abdelnaser Omran, Abdelsalam O. El-Amrouni, Abdul Hamid Pakir, , Latifa K. Suliman, Mahyuddin Ramli ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25353
Radiolytic output of hydrogen as environmentally friendly energy vector
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThis study deals with the radiolytical decomposition of water molecules, in the presence of some catalysts, getting out hydrogen as unpolluting and cheaper energy vector. Instead of the spent nuclear fuel elements taken out from nuclear power plants, as irradiation source it was used the 60Co radionuclide having a specific activity of 1.1.105 Ci. It was observed that the radiolytic yield of resulted molecular hydrogen from water radiolysis in the presence of used catalysts decreased as:N... Autori: Ada Macovei, Alexandru Cecal, Dumitru Ganju, , Oana R. Haută ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25354
Monitoring of PAHs in refinery effluents
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractA study was fulfilled concerning the source and the distribution of PAHs in the effluent proceeding from an oil refinery. The monitoring of the PAHs concentration in the refinery’s effluent also was performed during a year long. The practical goal of the work was to observe the complying with the limits imposed by the current legislation and to identify the potential risks of exceeding these limits in the future. For this study, gas chromatographic and HPLC methods were used. The metho... Autori: Anca Iuliana Birladeanu, Claudia Irina Koncsag, Mariana Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25357
An experimental three-stage hybrid constructed wetland system for removal of organics and nutrients from domestic wastewater
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractAn experimental three-stage subsurface flow constructed wetland system was investigated for the removal of nutrient and organic matter from primary-treated domestic wastewater. Built in the Turkey Scientific and Technical Research Council-Marmara Research Center, Gebze, Turkey (Istanbul), the system consisted of a vertical flow-gravel filtration in the first stage, a horizontalsubsurface flow bed vegetated with Iris in the second stage, and a vertical-subsurface flow bed vegetated Phragm... Autori: Bilal Tuncsiper ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25358
Glucose oxidase - vanadium substituted anionic clay as bionanocomposite formulations for biosensors applications
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractChemical sensors utilizing immobilized enzymes and proteins are important for monitoring chemical processes and biological systems. Glucose oxidase (GOx) from Aspergillum Niger is a flavoenzyme that has been used to determine glucose. Among the conventional methods of enzyme deposition the main strategy consists in its entrapment in an inert matrix adsorbed on the electrode surface. We report here the synthesis and physical – chemical characterization of a new bionanocomposites obtaine... Autori: , Gabriela Ciobanu, Ion Balasanian, Simona Ratoi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25359
Residues of polycyclic aromatic hydrocarbons in different stages of Capsicum annuum (pepper) and Solanum lycopersicum (tomato) growing
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractPolycyclic aromatic hydrocarbons (PAHs) are included in the European Community (EC) and in the Environmental Protection Agency (EPA) priority pollutant list due to their mutagenic and carcinogenic properties. PAHs emissions from automobile traffic and industry activities were shown to influence the PAHs levels and profiles in vegetables grown nearby. The levels of 15 PAHs were determinate in samples of pepper (Capsicum Annuum) and tomato (SolanumLlycopersicum) in different stages of plan... Autori: Alina Soceanu, Dan Tiberius Epure, Gabriela Stanciu, Simona Dobrinas, Valentina Coatu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25360
Analysis of distribution of oxygen transfer rate in stirred bioreactors for bacterial broths
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThe study on the distribution of oxygen transfer rate in a stirred bioreactor for Propionibacterium shermanii broths underlined the major influence of the presence and concentration of biomass on the interphasic transfer of oxygen. Owing to the bubbles surface blockage by the bacterial cells, the accumulation of biomass from 30.5 to 120.5 g/l d.w. led to the decreasing of kla for about 1.3- 2.4 times. Compared with the simulated broths without biomass having similar apparent viscosity, t... Autori: Adina Segneanu, Anca-Irina Galaction, Dan Caşcaval ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25364
Trend in exhaust emissions from in-use gasoline vehicles
Environmental Engineering and Management Journal › Vol. 8 › Nr. 1 AbstractThe main goal of this study is to determine the trend in exhaust concentrations during the last 12 years. Accordingly, a nondisperse infrared gas analyzer was used to measure the concentrations of carbon monoxide (CO) and hydrocarbons (HC) emitted from vehicle exhaust. A total of 449 vehicles distributed across model years ranging between 1968 and 2005 were tested under idling conditions. The results indicated that there is a strong relationship between the age of the vehicle and the con... Autori: Kamel Al Zboon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25365
Environmental Engineering and Management Journal, Vol. 8 Nr. 2
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Include urmatoarele articole:? Environmental Engineering and Management Journal, Vol. 8 Nr. 2? Bioengineering aspects of tissues culture bioreactors for medicine and environmental applications? Removal of bis (1-chloro-2-propyl) ether from wastewater using sonodegradation and biodegradation? A novel plasma reactor for toluene decomposition in contaminated air flow? Study of the copper (II) removal from aqueous solutions by chelating resin Purolite S930 ? Analysis of some metal levels... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25371
Environmental Engineering and Management Journal, Vol. 8 Nr. 3
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 ? Bioremediation of contaminated air using a bioscrubber? Quality risk evaluation of the groundwater resources on the moldavian area? Electrochemical characterization of some dental materials in accelerated environmental testing? Preliminary study of simple and Fenton oxidation with hydrogen peroxide applied on final effluents from a zootechnical farm? The environmental impact assessment caused by the dykes failure? Revaluation of beer industry byproducts – medical implications? ... Autori: http://www.ecozone.ro/reviste.php?RID=25372
Environmental Engineering and Management Journal, Vol. 8 Nr. 4
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 ? Photocatalytic properties of titania - fly ash thin films? Study of the viscosity of some biodiesel – diesel oil blends? Aspects refering to technical and leaching properties of the secondary aluminium slags - cement composites? Studies regarding phenol and 4-chlorophenol sorption by surfactant modified zeolites? Cu-Ni nanostructured electrocatalysts obtained by electrocodeposition? Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic ac... Autori: http://www.ecozone.ro/reviste.php?RID=25373
Environmental Engineering and Management Journal, Vol. 8 Nr. 5
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 ? Photocatalytic properties of titania - fly ash thin films? Study of the viscosity of some biodiesel – diesel oil blends? Aspects refering to technical and leaching properties of the secondary aluminium slags - cement composites? Studies regarding phenol and 4-chlorophenol sorption by surfactant modified zeolites? Cu-Ni nanostructured electrocatalysts obtained by electrocodeposition? Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic ac... Autori: http://www.ecozone.ro/reviste.php?RID=25374
Environmental Engineering and Management Journal, Vol. 8 Nr. 6
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 ? Physiological changes in seedling germination and growth plant under chemical stress conditions? Studies on sorption and transport processes of cadmium in soils? Assessment of the anthropogenic impact on water systems by fluorescence spectroscopy? Research on the effects of soil improvement by fertilization on the quality of winter wheat? Halotherapy: From ethnoscience to scientific explanations? Study regarding the sorption of erythrosine from aqueous solution onto soil? Hydroxy... Autori: ISSN: 1582 - 9596 http://www.ecozone.ro/reviste.php?RID=25375
Survey of electromagnetic environment due to mobile communications
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThis paper presents an analysis of the levels of electromagnetic fields caused by cellular base stations or mobile phones, measured in some residential areas. A statistical processing of the data has also been done in order to estimate both the short-term and the long-term variability of the fields caused by cellular base stations in some apartments and on the terraces of the apartment buildings at tens or hundreds of meters distance from the antenna systems. In some places, comparative ... Autori: Alexandru Salceanu, Ionut Nica, Valeriu David ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25381
Minimization of cutting fluids ecological impact by near dry machining
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThis paper analyses a new technology for minimizing the use of metalworking fluids (MWF) during the machining process. Despite the fact that near dry machining (NDM) produces almost similar cutting performance to conventional flood supply machining while using much less MWF, for being fully utilized in industry is necessary to research ecological impact of these machining techniques. To take full advantage of minimal quantity lubrication (MQL) technique and expand its applicability, an u... Autori: Domnita Florina Fratila ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25382
Wind power systems with hydrostatic transmission for clean energy
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractWind energy is being used extensively in various areas as an economically and environmentally friendly type of energy. The number of wind farms is continuously developing and it is foreseen a three time increase in contribution of wind energy to European electricity consumption for next twenty years. A complementary trend, of large potential and expectations, is the revival of the small wind turbines (SWT) (<100 kW), suitable for operating in rural areas with moderate winds. In the ca... Autori: Irina Tiţa, Doru Calarasu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25383
Entrepreneurial capacity for sustainable development of economic environment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract Based on qualitative research conducted on teams of Romanian students in Engineering and Management that participated in transnational teams within the framework of an international simulation program on global technologies for sustainable development, specific features in relation with the development of entrepreneurship capacity (values, skills competencies) were identified and examined. It was found that specific cultural biases influenced the way the Romanian students approached var... Autori: Aida Carmen Hutu, Silvia Avasilcăi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25384
The sorption of lead(II) ions from aqueous solutions on peat: Kinetics study
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe lead(II) ions sorption from aqueous solutions on three types of peat from Poiana Stampei (Romania) was studied. The peat was drawing from different deeps, such as 5-10 cm deep (peat 1), 0.5-1.0 m deep (peat 2) and from > 1.5 m deep (peat 3). The influence of several experimental parameters (initial lead concentration, contact time) was studied in batch experiments. The kinetics of sorption was followed based on the amount of lead(II) ions retained at various time intervals. The re... Autori: Laura Bulgariu, Mioara Răţoi, Dumitru Bulgariu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25389
Priority organic pollutants removal by ultrafiltration for wastewater recycling
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractUltrafiltration (UF) represents an important option for the advanced wastewater treatment as it offers good performances from both technical and economical points of view, for the removal of suspended solids, colloids and some of the organic compounds present in different effluents. The occurrence of priority organic pollutants in wastewaters streams and the environment has raised intensive scientific debates about their effects and the possible abatement technologies. As part of a broad... Autori: George Barjoveanu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25390
Treatment and management of distillery fermentedfruit spent marc. I. Processing into compacted solid fuel
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe study presents the processing possibilities for marc resulted as still residue from the distillation of fermented fruits in view to obtain a compacted solid fuel. Initial marc composition (carbon, hydrogen, nitrogen, sulphur and oxygen contents) determined by elemental analysis is evidenced, as well as technical characterisation (ash and moisture contents) and ash's qualitative composition, chemical characterisation of the liquid phase (pH, total phosphorus, acidity and conductivity)... Autori: Daniela Simina Stefan, Anca-Ileana Penu, Mircea Stefan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25391
Adsorption of n-hexane vapors onto non-functionalised hypercrosslinked polymers (HYPERSOL-MACRONETTM) andactivated carbon: Thermodynamic and kinetic studies
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 AbstractThe adsorption characteristics of n-hexane vapors from gaseous stream onto two types of hypercrosslinked polymeric resins (MN 202 and MN 250), and a bituminous granular activated carbon (AC 20) was investigated. The n-hexane influent concentration ranged from 2100 to 4500 ppm and the adsorption processes were performed at 30, 40 and 50 ?C. Thermodynamic potentials ?H, ?S, and ?G and isosteric heats of adsorption were calculated from experiment performed at different temperatures (30-50?C... Autori: Adela Marilena Buburuzan, Cezar Catrinescu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25393
Heavy metals contamination of commercial fish foodstuff - potential health risks on human consumers
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
Human exposure to heavy metals requires special surveillance measures on these elements in human body in order to detect a relation between heavy metal exposure and adverse health effects. The aim of this paper is focused on biomonitoring contamination with heavy metals in fish foodstuffs and in blood, and corroboration of contaminant levels with immunotoxicological effects on target groups of consumers. The final goal is to establish some recommendations on human diet with fish food... Autori: Aurelia Meghea, Alina Murariu, Cristina Tanase, Eleonora Codorean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25398
Optimization of process variables for cadmium removal from synthetic wastewaters by sphagnum moss peat
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
The efficiency of Cd (II) removal from aqueous solutions was investigated using Sphagnum moss peat as sorbent. A 23 orthogonal central composite design was successfully employed for experimental design and analysis of results. The combined effect of the initial solution pH, peat dosage and initial Cd (II) concentration was studied and optimized using Response Surface Methodology (RSM). The optimum values of these variables were found to be pH = 4.72, 14.7 g peat /L and 13.64 mg Cd /L, ... Autori: Catalin Balan, Corneliu Cojocaru, Petru Bulai, Doina Bilba, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25399
Decontaminate effect of the functionalized materials with undoped and doped (Ag) TiO2 nanocrystals
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
This paper presents the preliminary results of photocatalytic oxidation of humic acid from water using two types of catalysts, i.e., TiO2 and Ag-doped TiO2 modified zeolite (TMZ and Ag-TMZ). TMZ and Ag-TMZ, with zeolite granulation of 315-500 ?m was synthesized by sol-gel method, and the morphology and composition of the unmodified/modified zeolite were characterized by BET (Brunauer–Emmet–Teller) method, X-ray Diffraction (XRD), scanning electron microscopy (SEM) and energy dis... Autori: Cornelia Ratiu, Carmen Lazau, Paula Sfirloaga, Corina Orha, Daniela Sonea, Stefan Novaconi, Florica Manea, Georgeta Burtica, Ioan Grozescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25397
A novel plasma reactor for toluene decomposition in contaminated air flow
Environmental Engineering and Management Journal › Vol. 8 › Nr. 2 Abstract
A new type of wire-cylinder plasma reactor, in which air flow shapes into gas torches is developed. The decomposition performance of toluene in contaminated air flow induced by pulsed corona discharge in the reactor is investigated experimentally under atmosphere pressure and room temperature. It is found that the decomposition efficiency is affected dramatically by air introduction way, and the ejection stimulates the decomposition of toluene compared with the conventional method. T... Autori: Zhihui Xie, Lingen Chen, Fengrui Sun, Qizheng Ye ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25402
Methodology for real estate appraisal of green value
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Green buildings are considered a quick and effective approach to protect the environment by slowing down the consumption rate of primary energy resources and by reducing greenhouse gas emissions. In Europe, appraisals of properties should take into consideration this new feature of buildings by implementing data from Energy Performance Certificates (EPC) into real estate assessment. With this respect, a methodology is proposed and analyzed to be considered in the sales comparison rea... Autori: Daniela Popescu, Emilia Cerna Mladin, Rodica Boazu, Sven Bienert ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25406
Study on the multi-annnual variability of particulate matter PM10 in Suceava City
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Fine particulate matter and ground-level ozone are now generally recognized as the most significant in terms of health impacts. This study shows that concentrations of particulate matter up to 10 microns in diameter (PM10) in Suceava city exceeded EU limits set to protect human health during 2004-2007. In order to design effective PM10 air quality management programmes, it is essential to identify the sources affecting PM10 background levels. For this, PM10 data series were analyzed ... Autori: Lacramioara Gina Ursul, , Doina Carmen Manciuc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25409
Environmental monitoring of co emissions: Statistical character of acquired data
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
A set of experimental data resulted from environmental monitoring and its informational content has to be revealed and checked for its statistical character. As a result in this paper the aim was to verify if the environmental monitoring data obtained for a specific air pollutant monitored during three years presents statistical properties. Based on the results obtained by applying statistical requirements such as fixed location, fixed variation, randomness and fixed distribution, a ... Autori: Irina Meghea, Mihaela Mihai, Ioana Lacatusu, Tiberiu Apostol ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25410
Assessment of some heavy metals in soils, drinking water, medicinal plants and their liquid extracts
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Pollution with toxic metals is a serious concern, because once these elements enter in the soil they can be present for a long time, with the potential contamination of drinking water sources. Certain metals in soil may be taken up by plants which are subsequently harvest for human consumption. Our objective was to study the presence of heavy metals in soils, groundwater sources, some medicinal plants from areas of the water sources and in its watery extracts. All of the samples, af... Autori: Diana Diaconu, Victor Nastase, Mara Mihaela Nanau, Ovidiu Nechifor, Elena Nechifor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25411
Preparation and characterization of sodium alginatechitosan microparticles for controlled release of ibuprofen in a sustainable way
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The preparation of microspheres containing chitosan, sodium alginate and ibuprofen and the pH dependent drug release were investigated. The microspheres were prepared by two experimental routes: the first one starting with a chitosan/ibuprofen core subsequently coated by an alginate shell (S1) and the second one based on an alginate/ibuprofen core, later coated by a chitosan layer (S2). The physical-chemical characterization was done by using Dynamic Light Scattering (DLS), Atomic Fo... Autori: Luminiţa Elena Balău, Nicolae Aelenei, Marcel Ionel Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25412
A study concerning diesel biodegradation in liquid medium, by bioaugmentation, using a Pseudomonas sp. strain
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The paper presents the capacity of biodegradation of selected microorganism, cultivated on liquid culture media to which diesel was added in different amounts, to determine petroleum products and process efficiency. The optimum necessary conditions for development of microbial strains (pH, temperature, the quantities petroleum product / inoculum) have been established with the help of an experimental optimization program, SIMPLEX.... Autori: Dana-Camelia Cocut, Cornel Cojocaru, Mariana Diaconu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25414
Researches on possibility to recover and reuse the Iron(II) sulphate from etching of rolled steels
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
The etching of iron materials in sulphuric acid solutions allows the dissolution of the iron oxides with formation of iron sulphates. The relatively low solubility of the formed sulphates imposes their separation for avoiding the contamination of the etching bath, as well as for preventing the environmental pollution through the wastewater. Within the flow sheet of the processing of the hot or cold rolled steel, a stage of separation by crystallization of iron sulphate is foreseen. T... Autori: Liliana Lazar, Ion Balasanian, Florin Bandrabur ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25415
Phytoremediation technology for remediation of radiostrontium (90SR) and radiocaesium (137CS) byCatharanthus roseus (L.) G. don in aquatic environment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Phytoremediation is an eco-friendly, cost effective, in situ treatment technology. In the present research study, phytoremediation technology has been employed for remediation of radionuclides namely 137Cs and 90Sr by using living green plant Catharanthus roseus. C. roseus plants were exposed to different activity levels of 137Cs and 90Sr in aquatic condition to assess the efficiency of plants for remediation of radionuclides. C. roseus plants have been found to remediate 70%, 52% an... Autori: Singh Anamika, Susan Eapen, Madhusudan H. Fulekar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25417
Exploratory investigation of bioprocesses sustainability improvement by multicriteriamultilevel optimization
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Up to the present days, the bioprocesses were designed and operated with the aim at achieving some economic, environmental, and social criteria. Sustainability based optimization has to be the next step towards the improvement of the economical, environmental and social parameters of bioprocesses. In this work, sustainability will be treated as an optimization task where the objective function(s) is/are either a performance index or a set of performance indices, subject to economic, ... Autori: Alexandru Woinaroschy, Dana Irina Ofiteru, Vasile Lavric ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25418
Utilization of coal fly ash from power plants II. Geopolymer obtaining
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Study of geopolymer is a developing field of research for capitalizing solid waste and by-products in the view of new materials achievement having characteristics necessary for using as cement substitute. Also, it provides a solution to many problems regarding environment, such as reduction of gaseous emissions and particles matter resulted from cement industry and raw materials economy.
In this paper, the experimental conditions for obtaining new materials on the basis of fly ash f... Autori: Maria Harja, , Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25419
Reactive dyes removal from wastewater by combined advanced treatment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Textile industry is one of the most pollutant and water consuming industries. Large quantities of water are required in materials preparation and dyeing, so consumption and waste generation have become serious concerns for textile manufacturers and finishers. Textile effluents are characterized by high values of quality indicators such as BOD and COD, suspended solids and heavy metals. A serious environmental problem and also an aesthetic problem is the color of the effluent. Reactiv... Autori: Daniela Cailean, George Barjoveanu, Corina - Petronela Musteret, Liliana Rozemarie Manea, Nicolae Sulitanu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25420
Sustainable development research perspectives in EU documents as seen by researchers from ?Gheorghe Asachi?? Technical University of Iasi: A case study
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Knowledge-based society, sustainable development, and digital technology as concepts of the contemporary times that stem from the responsibility towards the future of mankind, are the results of intense scientific research. As a consequence of its commitment of turning Europe into the world's most dynamic and competitive knowledge-based economy, and aware of the role played by research in the development the human society, the EU has defined at Lisbon in 2000 the framework of action ... Autori: Carmen Cătălina Ioan, Maria Ileana Carcea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25421
From the risks evaluation to the health and safety preservation at work
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
As the prevention of the risks is one of the major stakes of any industrial activity, a priori, the evaluation of these risks constitutes one of the principal progress levers of the risks prevention step at a company. It is an opportunity to engage a prevention step in order to preserve health and to improve the employees' safety at work. However, as the companies are increasingly concerned of hygiene and quality, health at the work should be taken into account with the same interest... Autori: Ghania Chaib, Rachid Chaib, Ion Verzea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25423
A theoretical analysis of the economy - ecology - environment system
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
This paper aims to analyze theoretically events in the economy - ecology - environment (natural resources) mega - system. This analysis includes methodologies making use of the first and second thermodynamic principles (for approaching the waste role in technological processes contour toward environment and the entropy variation importance in the main environmental segments), the application of systems theory and theories relating to emergy. The obtained results allow us to propose, ba... Autori: Avram Nicolae, Cristian Predescu, Maria Nicolae, Mirela Gabriela Sohaciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25428
Sustainable use of vegetal fibers in composite materials. Sources of vegetal fibers
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
Transition to a more sustainable economy and the consequences of the Kyoto protocol on global climate change, includes a shift of feedstock for energy and chemical industries from fossil fuels and petrochemicals to renewable resources. The use of vegetal fibers as major source of renewable resources represents a valuable alternative both from economical and environmental points of view. Traditionally, vegetal fibers are widely used in textile industry, paper manufacture, and packagin... Autori: Dan Gavrilescu, Bogdan Marian Tofanica, Adrian Catalin Puitel, Puiu Petrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25431
Revaluation of beer industry byproducts- medical implications
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
One of most important concern for the food specialists is to solve the sociologically impact problems in parallel with the decrease of the pollution degree through the advanced capitalization of byproducts from the food industry.
The paper debates the capitalization of beer industry byproducts known as malt radicles, and their use in the bakery industry, for the obtaining of dietetical bread.
Along the malt radicles, KCl and Prima Pan improver were added to the bread’s dough, and... Autori: Monica Tulbure, Domnica Ciobanu, Adrian Gabriel Feraru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25432
Bioremediation of contaminated air using a bioscrubber
Environmental Engineering and Management Journal › Vol. 8 › Nr. 3 Abstract
This study examined the effect of hexane concentration in the inlet gas stream on the treatment performance of a concentric tube internal loop airlift bioreactor with a 7 L capacity, inoculated with a strain of Pseudomonas aeruginosa. The experiments were conducted employing hexane-contaminated air, in 0.62, 1.26, 2.15 and 4.5 g/m3 concentrations at 29 ± 1°C. The 100% hydrocarbon removal was verified when effluents containing 0.62 and 1.26 g/m3 of hexane were employed. Under contin... Autori: Fernando Jorge Santos Oliveira, Leonardo Vazquez, Francisca Pessoa de Franca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25437
Options for the valorization by recirculation of powder material for steel manufacture in EAF
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
This paper aims to propose a new solution for rational valorization of the secondary powder materials from steel makingin electric arc furnaces. The elaborated steel quality as well as the economical advantages represented by secondary powdermaterials recirculation were studied. A good correlation between the proportion of brickets loaded into the melt and the melting ofcarbon has been found. The proportion of the EAF dust brickets can grow even at 5-7%. Zinc presence could havenegat... Autori: Mirela Gabriela Sohaciu, Avram Nicolae, Cristian Predescu, Stefan Velicu, Gheorghe Gh. Calea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25438
Opportunities for valorization of steel slags
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Using slag in steel making represents a challenge for road construction industry and decreasing environment interactions also.Steel making slag wit granulations of < 10 mm, which today have not a sure solution, represents the research object. The technological research solutions have aimed reducing CaO free content in these slugs, and reducing slug fraction with granulationof ... Autori: Florian Zaman, Mirela Gabriela Sohaciu, Ecaterina Matei, Cristian Predescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25439
Magnetic density separation of diamonds from gangue
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
In view of the predicted diamond shortage in 2010, a number of innovative processes have been proposed recovering ... Autori: Frederike Weijmans, Erwin Bakker, Peter Rem ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25441
Carbon dioxide emission associated with the production of plastics - A comparison of production from crude oil and recycling for the dutch case
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Literature data show that in general, plastics produced through the mechanical recycling route involve less carbon dioxide emission than when produced from crude oil. A review of readily available data shows that road transport of untreated waste plastics account for a significant portion of the carbon dioxide emission generated during recycling. Therefore, much carbon dioxide emission can be saved by optimizing the logistics in the recycling of plastics.
On the example of polyolefi... Autori: Peter C. Rem, Stig Olsen, Jan-Henk Welink, Norbert Fraunholcz ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25442
Recycling of mixed polyolefin wastes
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The mass of usage of secondary plastics are mostly determined by their quality and price. Therefore it was essentially to collect and evaluate the related aspects and expectations from the potential secondary-plastics users. To enable this in the frame of the W2Plastics EU7 project (Magnetic Sorting and Ultrasound Sensor Technologies for Production of High Purity Secondary Polyolefins from Waste) an adequate questionnaire was worked and sent out to automotive plastics end-product man... Autori: Andrea Toldy, Brigitta Bodzay, Mircea Tierean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25443
High-purity products from plastic waste: The w2plastics project
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The European annual consumption of plastic materials has increased from 24.6 Mtons in 1993 to 39.7 M tons in 2003 and it is likely to keep growing. Europe is faced with the challenge of managing millions of tons of waste plastics. At the same time, polymer recyclers and manufacturing industries do not find enough secondary polymers of consistent quality. Plastics production and use has a range of environmental impacts because of the considerable quantity of resources needed as raw ma... Autori: Peter Rem, Venga Solaria, Francesco Di Maio ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25444
Environmental friendly welding - An evolution from 3D (Dirty, Dusty, Dangerous) to 3C (Cool, Clever and Clean)
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper approaches the environment issue in the context of welding fabrication processes. The introduction presents, synthetically, the place and dimension of welding in the manufacturing industry. Negative aspects regarding the image of weldingdue to the impact on the environment are identified. The driving factors and the main development trends of environmentalfriendly welding processes are analyzed. An action program to change the image of welding from the present "3 D - Dirty,... Autori: Dorin Dehelean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25445
Energy conservation and CO2 emissions reduction for clinker portland cement manufacturing process
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
At present, dangerous industrial wastes are a main source of environmental pollution because they are stored and deposited improperly. Besides, dangerous industrial wastes could also be a source of secondary raw materials which are not well capitalized. This fact causes substantial losses of secondary raw materials and energy and it is explained by the lack of certain technologies of treatment, capitalization and final removal that are technically and economically sustainable. To ide... Autori: Neculai Mihailescu, Vasilica Daescu, Elena Holban, Mariana Nicoleta Badea, Jenica Paceagiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25447
Residues of polycyclic aromatic hydrocarbons from refinery spent catalysts
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Spent hydroprocessing catalysts from petroleum refining industries have been classified as hazardous wastes due to their content in heavy metal and persistent organic pollutants (POPs). The aim of our paper determine the polycyclic aromatic hydrocarbons (PAHs) residues contents in spent catalysts samples from four different units of the Romanian refinery Rompetrol Rafinare,Constanta: Hydrogen (H), Gas Desulfurization Sulfur Recovery (GDSR), Hydrofining Turbojet Kerosene (HTK) and Pet... Autori: Camelia Draghici, , , Gabriela Stanciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25449
Case studies regarding the remediation of polluted soils from inactive industrial sites
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The methods generally used for developing these studies are the assessment and investigation. Assessment – all methods used for measuring, reckoning, modeling, forecasting or estimating the presence of a pollutant in the environment. Investigation - the process of identifying the presence of pollutants in the environment, the spatial dispersion of these pollutants, the level of their concentration, as well as the analysis of the environment’s structure. The steps that were follow... Autori: , Gheorghe - Viorel Cosara, Calin Baciu, Ileana - Codruta Stezar, Augusta - Diana Crisan, Camelia Costan, Cristina Modoi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25451
Preliminary investigation aimed to ecological reclaiming by phytoremediation of a large flotation tailing dump in baia mare mining area
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The flotation tailing pond Bozinta is located at 5 Km West from Baia Mare town. It is closed and is preparing for ecological reclaiming. Preliminary investigations have been made on the meteorological and climatologic indicators of the site. The temperature, air relative humidity, the wind speed, the rain values and the soil temperature have been measured during the vegetation period of 2008 year. The air temperature on the tailing pond is always 1?2 0C higher than the values regist... Autori: Vasile Oros, Mirela Coman, Monica Marian, Leonard G. Mihaly, Anca Mihaly ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25452
Land degradation and desertification risk in Dobrogea region
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
It's well known the degradation of many Romanian (including Dobrogea) soils, both in hill and in plain environments, due to the increasing anthropic pressure on natural resources. Soil erosion and organic matter loss are recognized as the main processes responsible of such degradation and of the rising risk of desertification, to which land use changes and politics for agriculture not suitable for land specificities often contribute. The knowledge of land use impact on soil quality i... Autori: Marioara Nicolaescu, Naliana Lupascu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25453
Sludge recycling in ceramic matrix
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
In the new millennium to sustain a healthy life in harmony with nature, it will be extremely important to develop various materials and processes that minimize any harmful influence on the environment. The feasibility of sludge recycling in the brick manufacture was evaluated through laboratory testing. Several ceramic masses with clay, sand and various proportion of sludge have been synthesized and than characterized by their physical-mechanical properties. Sludge fineness also has ... Autori: Ana - Maria Szoke, Marcela Muntean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25454
Iron oxides from electrofilter ash for water treatment (arsenic removal)
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Arsenic (As)-contaminated drinking water is a major problem around the world. The removal efficiency depends strongly on the size of Fe3O4 sorbents.Fe3O4 prepared in laboratory is more efficient in the removal of As and is also more easily recovered from column of magnetic separator than the commercial materials. This would be beneficial in a water treatment system because the As-contaminated Fe3O4 could be flushed from the column permitting reuse of the separator system. The dispers... Autori: Ionel Balcu, Adina Segneanu, Marius Mirica, Mirela Iorga, Catalin Badea, Iuliana Firuta Fitigau ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25456
Performances of biochemical treatment stage from municipal wastewater treatment plant
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper presents new studies about the removal efficiency of the biochemical treatment process of the Municipal Wastewater Treatment Plant from Constanta city, during 2008. Influent and effluent samples of biochemical treatment stage were collected and ammonium concentration, chemical oxygen demand (CODCr) and biochemical oxygen demand in five days (BOD5) were measured, aiming to study the evolution of the removal efficiency, during 2008. Additional analyses have been performed in ... Autori: Elisabeta Chirilă, Camelia Draghici, Adriana Puhacel ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25458
Adsorption of Cu2+ on White Poplar and Oak Sawdust
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The studies of Cu (II) adsorption were conducted by testing various sawdust types. Two biomass, oak sawdust wood (Querqus robur) and white poplar sawdust wood (Populus alba), have been compared considering their efficiency for copper removal from diluted water solutions. Raw sawdust proved no efficiency in adsorption. Therefore, pre-treatment processes were developed and optimized, to enhance the sawdust affinity for heavy metals adsorption. The optimized pre-treatment conditions are... Autori: Dora Lucaci, Anca Duta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25460
Sorption removal of chromate in single batch systems by uncalcined and calcined Mg/Zn-Al - Type hydrotalcites
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
This work investigated the sorption removal of chromate anion, in single batch systems, from aqueous solutions. The process involves the sorption of the chromate by a series of Mg/Zn-Al - type hydrotalcites, with four Mg/Zn/Al ratios, in two forms: uncalcined and calcined at 500 °C. The calcined Mg-Al (Mg/Zn/Al = 2/0/1) material showed the highest sorption capacity: 35.7 mg/g. The three-parametered Langmuir-Freundlich model approximated the experimental equilibrium data over the con... Autori: Laura Cocheci, Rodica Pode, Eveline Popovici, Emiliana Dvininov, Aurel Iovi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25461
Comparative study on surface water treatment using aluminium sulphate and polyaluminium chlorides as coagulant reagents
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper presents the comparative study regarding the turbidity removal using aluminium sulphate Al2(SO4)3*18H2O and polyaluminum chlorides, Aln(OH)mCl3n-m, commercial name, Sachtoklarr 39, in water treatment plant from Covasna City. The parameters that influence the treatment process and the efficiency of turbidity removal were studied. The water characteristic parameters of Basca Mare and Covasna rivers - the two sources of water alimentation for Covasna water treatment plant were... Autori: Daniela Simina Stefan, Cristina Costache, Viorica Ruxandu, Monica Balas, Mircea Stefan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25462
Noise pollution and health impact in urban Arges area
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Economical development in the Arges district, in the recent years, presents some aspects regarding the compliance with noise environmental regulations. The noise and its impact on human health is one of the most important objectives of the health assurance policy. In this paper a comparative study of urban noise in the principal cities of the Arges district is performed. The data monitoring of noise polution were carried out by using of specific standard methods with a Sonometer Delt... Autori: Ion Iosub, Silvia Iosub, Victor Grigorie, Aurelia Meghea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25463
Clouds influence on the solar radiation for a mountain location
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
In designing an efficient photovoltaic system, the meteorological data of the system location must be considered. Field data registered over years prove the importance of the implementation site characteristics in the design and optimal exploitation of a PV system, because wetting and atmospheric gaseous and particulate pollution can strongly distort the incident solar radiation. Thus, in addition to the efficiency of the solar module, the tracking efficiency, the clouds crossing fac... Autori: Dorin Valentin Diaconescu, , Ioana Sinziana Hermenean, Maria Monica Vatasescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25464
The eco-impact of small hydro implementation
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The development of energy from renewable resources is a very important action in the reduction of CO2 emissions. Hydropower is a renewable source able to reduce the CO2 emissions by more than 67 million tons / year. The paper analyzes a small hydropower plant to be implemented in Brasov region, from the environmental point of view. The reduction in the CO2 emissions brought by the small hydro is estimated by taking into account an ex-ante emission factor, based on validated and regis... Autori: Codruta Jaliu, Dorin Diaconescu, Mircea Neagoe, Radu Saulescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25466
Surface water pollution generated by mining activities. Case study: Aries river middle catchment basin, Romania
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The Aries River, due to its geographic position and its significance in the Mures - Tisza Basin, has a major impact on environmental media, influencing their quality. In the Middle Catchment Basin the main industrial activity is mining, since the Roman times, when the first mines were opened. The mining operations in the region generated a severe pollution of all the environmental media.
The paper identifies the risk areas in the middle Aries River in terms of surface water pollutio... Autori: , Lucrina Stefanescu, Camelia Costan, Mirela Miclean, Cristina Modoi, Serban - Nicolae Vlad ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25470
Enhanced heavy metal adsorption on dye-modified fly ash
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The use of fly ash (FA) in wastewater treatment received a lot of attention for the immobilization of heavy metal cations, mainly Cd2+, Pb2+, Ni2+, Zn2+, Cu2+. For an up-scalable wastewater treatment process, the substrate must have good adsorption efficiency and relatively constant behaviour. Modifying the fly ash surface can be a solution for reaching both goals. The use of FA for heavy metals removal, from wastewaters resulted in the dye finishing industry, faces a supplementary p... Autori: Maria Visa, Anca Duta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25471
New ecomaterials for wood preservation
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Wood has been used as an engineering material because it is low in cost, renewable and strong and it requires low processing energy. Wood has many excellent properties that result from its exceptional combination of microstructural, ultrastructural and molecular features. The main drawback is its dimensional instability in the presence of moisture, which can affects also the biological stability. Wood is susceptible to degradation in a number of ways, including rot or decay, insect a... Autori: Lucia Dumitrescu, Ileana Manciulea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25473
Anticorrosive protection system based on nanocomposites
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Corrosion control, using inhibitors like, polymerisable porphyrins and multifunctional nanocomposites, is extremely useful in many environments. Phosphogypsum is a waste product resulted from the process of obtaining the phosphoric acid and it can be also used as corrosion inhibitor; in a mixture with other coating materials.
Two types of modified porphyrin: Na4TFP Ac - dissolved in KOH and H2SO4 and H2TPP - dissolved in benzonitrile, were tested. The structure characterization of pho... Autori: Ionel Balcu, Adina-Elena Segneanu, Marius Constantin Mirica, Mirela Ioana Iorga, Corina Amalia Macarie, Iuliana Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25477
Studies on titanium oxide catalyst doped with heavy metals (cadmium, copper and nickel)
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
In order to improve the photo-efficiency of the electronic process as well as the response into the visible part of the spectrum, TiO2 doping with heavy metal (cadmium, cooper and nickel) have been employed. The objectives of this work are: (a) to prepare doped Me(Cd, Cu, Ni) TiO2 by doctor blade (DB) and spray pyrolysis deposition (SPD) techniques, (b) to characterize the catalysts, (c) to study and compare the activity of the Cd-TiO2, Cu-TiO2 and Ni-TiO2 catalysts on methyl orange ... Autori: Luminita Andronic, Bianca Hristache, Alexandru Enesca, Anca Duta, Maria Visa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25480
Microwaves effect over biomass hydrolysis
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Changing fuel consumption to a more ecological environmentally alternative is replacing fossil fuels with fuels generated from renewable resources. Ethanol, a renewable fuel, can be produced mainly from crops, lignocellulosic biomass and different other environmental wastes. Although ethanol has been produced mainly from crops, there is a great interest in using cheaper lignocellulosic materials as a feedstock for ethanol production.
The aim of this paper is study of dilute acid hyd... Autori: Ionel Balcu, Adina-Elena Segneanu, Marius Constantin Mirica, Mirela Ioana Iorga, Corina Macarie, Raluca Martagiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25481
Nanoparticle-based materials for catalysis
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Highly dispersed nanoparticles of transition and noble metals are utilized for hydrocarbon reactions and rearrangements important to the chemical industry. The need to obtain 1 to 3 nm particles with narrow size distributions has prompted the development of alternative processing methods. Due to widespread speculation concerning the enhanced properties of nanoparticles over their bulk and atomic material equivalents, nanoparticle synthesis has become an active field of research withi... Autori: , Irina Dumitriu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25482
New materials for water ozonization
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Application of ozone is known to yield favorable results in purification of phosphate plant water from elemental phosphorus, in treatment of water of alkali aluminate solutions of aluminum plants, in decontamination of cyanide-containing waste water of enrichment plants, and so on. It has been proved that halogen-containing compounds, most of which have mutagenic properties, and some of which are carcinogenic to humans, are formed when water is treated with chlorine. Conclusions made... Autori: Irina Dumitriu, , ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25483
The impact of regional development on the environment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Various specialists draw attention on the conflict between the industrial civilization and the environment and mention two aspects:
1. The tendency of depletion of natural energy resources, raw materials and food, or consumption of renewable into a rhythm superior to their capacity of regeneration
2. Physical damage and pollution of the environment: water, air and land.
It can be said that a sustainable society is the one that shapes its economic and social system so that natural ... Autori: Dan Duran, Irina Duran, Ciprian Costescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25485
Quality assurance and languages in technical education
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The process of quality assurance in the study of foreign languages in Technical Higher Education builds and increases employers’ confidence in the graduates. Thus, acquiring technical and communicative competences becomes a ?must?? when entering a competitive job market. The qualitative results of our research have revealed some of the factors sustaining students’ excellence performance in the study of foreign languages. In conclusion, the elaboration and implementation o... Autori: Anca Greculescu, Gheorghe Solomon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25486
Research on eco-business training requirements
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The motivation of this paper derives from the lack of integrated research and structures for managerial training and consultancy regarding the environment responsibility for eco-business. Also, the research underline the need of training and consultancy for eco-business in industrial small and medium size enterprises (SME) from the West part of Romania. The main aspects that were investigated were: the most needed items regarding the training programs, details about the consulting it... Autori: Anca Draghici, Monica Izvercianu, Mihaela Vartolomei, Vasile Duran ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25487
Issues on costs and investment for environmental protection
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The concept of sustainable development has emerged in order to correlate the need to continue increasing the level of human and increasingly fragile ?health?? level of environment. At the industrial level, things have moved more quickly. Thus, many companies use waste as fuel, and in some localities they are trying to implement systems for heating cottage on the combustion of waste. They are first to have acknowledged the eco-economical importance of recovery and reuse waste.... Autori: Dan Duran, Irina Duran, Adrian Diaconu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25488
East european particularities of the sustainable development
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper presents a case study developed within the Danube Environmental Center from the Romanian University ?Gheorghe Cristea?? of Bucharest. This center is targeted toward linking the material science with the sustainable development concepts, in order to move the awareness of the community alongside sustainable development, as a leading concept of the European development, which becomes essential for the new members as well, in the environmental education field, the geopo... Autori: Lidia Cristea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25489
Density of ecological wooden briquettes obtained from woody biomass
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The paper proposes itself to present some aspects about woody biomass as renewable source of energy and about one of the main product namely wooden briquettes. There will be put the accent on physical features of wooden briquettes namely its density but there has be not forgotten the ecological influences. It is also stated the conditions of experimental, type of machine that is used in laboratory experiments, type and feature of raw material and wooden briquettes. Finally some condi... Autori: Aurel Lunguleasa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25491
Compression strength of branch wood as alternative eco-material to stem wood
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The evolution of the request in wood production leads to larger stem wood consumption, intensive harvesting and consequently the environmental impact increases. One of the most ignored secondary resources in spite of limited reserves, branch wood could be used in new added value products as an alternative to stem wood, providing its characteristics are known and understood. This paper is part of a larger research project, which here compares the compression strength parallel to the g... Autori: Lidia Gurau, Marina Cionca, Cristina Timar, Alin Olarescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25492
Ecological polymer used for macro-defect-free cements (MDF) production
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Macro-Defect-Free (MDF) cements are polymer-cement composites characterized by high value of flexural strength. Due to their thermal and electrical insulating properties, MDF cements could replace other insulators obtained by environmental non-friendlier technologies or being themselves toxic and non-biodegradable. MDF cements obtained by the use of an ecologic polymer (poly(vinyl alcohol)) shows high mechanical resistance in the initial state but also it’s dramatic decrease after ... Autori: , Georgeta Moise, Hulusi Ozkul, Ozgur Ekincioglu, Catalin Croitoru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25493
Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic acid from aqueous solutions
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Molecular imprinting is a versatile and ecological method for obtaining polymeric materials with a lot of applications in the field of pharmacy, medicine and biosensor assays. In this work, a new method of alternative molecular imprinting to design imprinted poly (vinyl alcohol) films has been proposed. Glycyrrhizinic acid has been used as template molecule. To demonstrate the obtaining of the molecular imprinted poly (vinyl alcohol) and its selectivity, studies of glycyrrhizinic and... Autori: , Catalin Croitoru, Georgeta Moise ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25495
Cu-Ni nanostructured electrocatalysts obtained by electrocodeposition
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
A simple method to synthesize copper, nickel and Cu-Ni nanotubes in alumina membrane by direct electrochemical deposition technique is presented.
This work is divided into three main parts:
- elaboration of the nanostructured metals supported on Cu and Ni electroconductive support;
- SEM - EDX characterization of nanodeposits;
- electrochemical characterization of the nanostructured electrodes;
Cu and Cu-Ni nanostructures were obtained by deposition through an alumina membrane (... Autori: Maria Jitaru, Ana-Maria Toma, Mihaela-Claudia Tertis, Ancuta Trifoi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25496
Studies regarding phenol and 4-chlorophenol sorption by surfactant modified zeolites
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
Phenols and chlorophenols are contaminants in soils, sediments, surface waters and groundwater, largely because of their worldwide utilization in the last 50 years as wood preservatives and general biocides in industry and agriculture. The toxicity of chlorophenols and their persistence in the environment require advanced treatment techniques for their removal.
This study presents the results of a comparative evaluation of the adsorption of phenol and 4-chlorophenol from aqueous sol... Autori: , Cezar Catrinescu, Roxana Elena Apreutesei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25497
Aspects refering to technical and leaching properties of the secondary aluminium slags - cement composites
Environmental Engineering and Management Journal › Vol. 8 › Nr. 4 Abstract
The purpose of this work is to investigate the secondary Al slag (SAS) relating to its technical and environmental properties and, as consequence, to its compatibility with Portland cement matrix. This study may be a contribution to establish of SAS potential valorization as secondary raw material (SRM) in low strength cement matrix composites, as construction products.
DRX mineralogical analyses revealed that SAS includes transition alumina compounds, especial boehmite. The hydrati... Autori: Maria Gheorghe, Nastasia Panait, Romanita Teodorescu, Maria Roman ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25498
Emerging processes for soil and groundwater cleanup - potential benefits and risks
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The cleanup of environmental pollution involves a variety of techniques, ranging from simple biological processes to advanced engineering technologies. Cleanup activities may also address a wide range of contaminants. Technologies to remediate contaminated soil fall into two principal clean-up approaches: in-situ (which is always done onsite), or ex-situ (which can be done on- or off-site). In-situ treatment deals with contamination without removing material from the ground, while ex... Autori: Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25501
The carbohydrates synthesis in Calendula Officinalis l. Leaves influenced by some mutagene substances
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
It is known that carbonhydrates are precursors of all bioactive substances we tried in thes paper work to do some investigation on these substances in the environmental area of Iasi. To observe the influence of some chemical mutagens substances on carbohydrates biosynthesis we conducted investigations on plant material (leaves) taken from the Calendula officinalis L species. We used this assay to examine the effects of the herbicide 2,4- dichlorophenoxyacetic acid (2,4-D), etidium br... Autori: Constantin Leonte, Roxana Vatavu, Teodor Robu, Irina Volf ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25502
Passive biomonitoring of atmospheric pollution with heavy metals using native epigeic moss
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
It were investigated some atmospheric sediments of copper and chromium in mining areas of Dorna Basin by passive monitoring with six species of native epigeic moss (Mnium hornum, Mnium cuspidatum, Mnium punctatum, Polytrichum strictum, Thamnium alopecurum si Cephalozia bicuspidate) in two stages: April - September 2005 and October 2005 - March 2006. Thesedeterminations were achieved in 4 locations: Dealul Boambei, Saru Dornei, Sarisorul Mic, Neagra Sarului. In the same time was deter... Autori: Catalin Dumitrel Balan, Ionela Mezdrea Cojocareanu Pata, Matei Macoveanu, Sandu-Marius Pata ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25503
Agricultural soil mapping
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The recent results of technical development of low cost GPS systems, geographic information systems, equipment and sensors which are needed to identify the state of the crops and soils have shown a growing awareness in agriculture and related sciences. The actual demand for modern crop management is dominated by the economic pressure and by the social request to increase the transparency of environmental impact of agricultural land.
Currently, worldwide there are the public policy a... Autori: Vergil Marian Muraru, Cornelia Muraru-Ionel, Ion Pirna, Ion Tenu, Petru Cardei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25504
Monitoring of environmental low frequency magnetic fields
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 AbstractWith a view to make a long term survey of the magnetic fields generated by the power line sources, appliances or, generally, by the low frequency magnetic field sources, a tri-axis magnetic field meter was proposed. Referring to the magnetic field sensor, both the characteristic proportional of the field strength and proportional to the time derivate of the field strength were considered. Thus, two active magnetic field meters working in 40 Hz ? 200 kHz frequency range were designed. In ... Autori: Alexandru Salceanu, Ionut Nica, Liviu Breniuc, Valeriu David ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25507
Abiotic and biotic mitigation of volatile methyl siloxanes in anaerobic gas-phase biomatrices
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
This paper presents preliminary results of a batch-scale study assessing the contribution of the multiple phenomena involved in siloxane removal in three-phase biomatrices. Batch scale experiments were undertaken in shaken flasks containing acclimatised culture medium, solid media and siloxane vapours (octamethylcylotetrasiloxane and decamethylcyclopentasiloxane, respectively) under anaerobic gas-phase conditions. Abiotic and biotic phenomena, considered to be possible siloxane remov... Autori: Gabriela Soreanu, Patricia Falletta, Michel Beland, Kara Edmonson, Peter Seto ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25510
The product's anticipated success ratio on the turbulent markets: A genuine tool for the agile enterprises
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
To become "flexible" is the equivalent of becoming successfully for almost any firm - the activities based on old and traditional product "recipes" are, obviously, excluded. But, in the framework of a global economy crisis, the statistics seems to prove that flexibility is no longer enough in order to avoid troubles. At the same time, another statistics prove that almost 80% of the products are failing at their first release on market. The paper presents a genuine marketing aggregate... Autori: Gabriel-Petru Luca, Ion Verzea, Irina Cozminca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25511
The analysis of alternative investments for sustainable agriculture
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The rationality of allotting the resources for investments in sustainable agriculture needs the selection of alternative projects depending on numerous factors. The decision analysis process allows the identification of one variant with the highest utility that corresponds to the exigencies of economic, social and environmental impact efficiency. The integrated approach of the objectives specific for sustainable development actually leads to the selection of the investment portfolio ... Autori: Camelia Burja ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25512
The advertising efficiency ratio: A marketing aggregate indicator modeling for a noisy and turbulent market
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
This paperwork is trying to achieve some of theoretical and practical objectives concerning the "agility" concept: to make the differences operational, and to ensure the present surviving and the future development of economical activities in a, more and more, turbulent business environment. Also, the paperwork comes to display a genuine aggregate indicator "Advertising Efficiency Ratio", special developed to help the market players to face - throughout their advertising process - th... Autori: Gabriel-Petru Luca, Ion Verzea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25513
Bioavailability processes for contaminants in soils and their use in risk assessment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The individual physical, chemical, and biological interactions that determine the exposure of plants and animals to chemicals associated with soils are of great importance in the assessment of contaminants bioavailability. Understanding of bioavailability processes is at last needed to improve the scientific basis of risk assessment and is the purpose of the present research.
Since bioavailability processes are embedded within existing human health and ecological risk frameworks, so... Autori: Brindusa Mihaela Robu, Camelia Smaranda, Florentina Anca Căliman, Laura Carmen Apostol, Lucian Vasile Pavel, Maria Gavrilescu, Raluca Maria Hlihor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25516
Innovative solutions creates environmental advantages
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
This paper is a study about the symbiosis between the environmental aspects – innovation and competitive character of an industrial organization in our modern and sophisticated world. In actually global market and in conditions of world sever recession, for any organization or economic sector, the chance for surviving and development is given by adopting an innovative culture. This work contains case studies about the necessary steps for developing an innovative organization, a deb... Autori: Florin Negoescu, Eugen Axinte, Gheorghe Nagit, Adrian Iosub ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25517
Alignment of the manufacturing technologies of automotive metallic component to the environment european directives
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Alignment of the manufacture technologies to the environment European directives requirements represents a modern approach of the environment issues considered as integrant part of the lasting development which will represent one of the connecting ways of the Romanian economy to the globalization process. In the present work a pertinent study is made regarding the harmonizing into the limits imposed by the environment European directives (Dir. 99/13/CE, Dir. 76/464/CEE and Dir. 2000/... Autori: Stefan Velicu, Petrica Corabieru, Dumitru Zait, Anisoara Corabieru, Dan Dragos Vasilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25518
Economic and environmental sustainability of project effects
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Economic viability depends upon the sustainability of project effects. The economic analysis of projects should include an analysis of the financial sustainability of project agencies, and the environmental sustainability of outputs and inputs. Practical experience of project effects has drawn attention to the way in which financial and environmental effects impinge on benefit sustainability. Postevaluation experience also shows that, unless such factors are taken into account, econo... Autori: Luminita Horhota ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25519
European frame for sustainable agriculture in romania: policies and strategies
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The idea of sustainable farming relies on raising its yield along with a safe and constant gain with minimum environmental impact and by ensuring the population’s food security. Sustainable agriculture is a large concept that encompasses the complexity of this production system, the biological stability of farming plants and varieties, the conservation and protection of natural resources, but also the implementing and generalization of high-output modern technologies. Sustainable a... Autori: Brindusa Robu, Carmen Cătălina Ioan, Edinel Robu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25520
Impact of landfill leachate on soil quality in Iasi county
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Waste management hierarchy has as priorities waste recycling and energy recovery. Unfortunately, Romania is in the situation so as the waste landfilling is still considered as a suitable solution for waste management. European Union imposed a number of regulations and programs in the field of waste treatment and management that Romania must comply.
The paper describes some aspects regarding characterization of the leachate originating from the Tomesti landfill (situated in Iasi County... Autori: Ana-Maria Schiopu, Brindusa Mihaela Robu, Ion Apostol, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25523
Wastes used in obtaining polymer composite
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
In the paper is analyzed the possibility of using some industrial wastes for obtaining new building materials. From the industry or from the power station a lot of by-products or wastes have resulted and their storage is a big problem for the environment. In the building material industry a part of these wastes can be used in different ways: for replacing the cement, as addition in concrete, as component of cements, in the mixture of polymer concrete, etc.
In the present investigati... Autori: Marinela Bărbuţă, Nicolae Taranu, Maria Harja ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25525
A new technology to obtain ecological steels
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
A friendly technology with the environment which consists of the elaboration of carbon steels through specific proceedings to powder metallurgy has in view the contribution of methane gas in iron powders at the same time with sintering. This technology is advantageous from various points of view: the final product is a part which does not need afterward processing with solid waste result and therefore the specific energy consume is lower, the wear and corrosion behavior is similar to... Autori: Olimpia Ghermec, Cristian Ghermec, Traian Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25526
Driving forces and barriers for sustainable use of recovered paper in papermaking
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Recovered paper is a valuable raw material for the paper industry at global level. Paper made from recovered paper reduces the demand on forests, uses less energy, water and chemicals, produces less toxic releases and reduces solid wastes that must be landfilled or incinerated. This paper is mainly aiming to analyze the driving forces for sustainable use of recovered paper and to discuss the benefits of recovered paper use on paper and board production, as well as on the environment.... Autori: Dan Gavrilescu, Elena Bobu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25528
Economical and social assessments approach on paper recycling
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Life Cycle Cost Analysis (LCC) and Social Life Cycle Analysis (SLCA) are available methodologies for the economic and social assessment of a product or process along its life cycle. Different approaches regarding LCC and SLCA have recently emerged and several hypotheses are currently on testing and discussing. This paper shows existing LCC and a SLCA approaches as well as the methodology applied in the particular case of a paper recycling process. This study gathers part of the Europ... Autori: Beatriz Ferreira Pozo, Antonio Dobon Lopez, Carlos Lopez Lopez, Maria Calero Pastor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25529
Equilibrium and kinetic studies of copper (ii) removal on Purolite S930 resin
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
The presence of heavy metals in the environment is a major concern due to their non-biodegradability, bioaccumulation tendency, persistence in nature and toxicity to many life forms. Different treatment techniques for wastewater laden with copper have been developed in recent years to decrease the amount of wastewater produced and to improve the quality of the treated effluent. All techniques have their advantages and limitations in application. One of the most used techniques to rem... Autori: Petru Bulai, Catalin Balan, Camelia Scripcariu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25531
Using of industrial waste materials for textile wastewater treatment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Sorption is one of the several methods that have been successfully utilized for dyes removal. A large number of materials have been used as suitable sorbents for decolourization of industrial effluents: activated carbon (the most common but expensive adsorbent), polymeric resins, various low-cost adsorbents (agricultural and industrial by-products, peat, chitin, silica, bentonite, other clays, fly ash).
Our paper is a review about our researches regarding different types of industri... Autori: Daniela Suteu, Carmen Zaharia, Augustin Muresan, Rodica Muresan, Alina Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25532
Adsorption characteristics of Co(II) ions from aqueous solutions on romanian peat moss
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Peat moss has been widely used as low-cost adsorbent to remove a variety of pollutants, including organic compounds and metal ions from aqueous effluents. Various functional groups allow such compounds to bind on active sites of peat moss. The adsorbent used in this study was Romanian peat moss sampled from Poiana Stampei (Romania). The adsorption of Co(II) ions from aqueous solutions on Romanian peat moss was studied in batch experiments, in order to establish the influence of initi... Autori: Corneliu Caramalau, Laura Bulgariu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25533
Studies regarding advanced processes used for reactive dyes removal from textile effluents
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
In the textile finishing and dyeing industries, the total volume of water consumed is around 150 millions tons/year, and thus very large quantities of water are processed and produced as wastewater by textile plants. Quality indicators of textile wastewaters, like BOD and COD, have values which, in some cases, exceed 5 times the maximum concentration value (allowed by the national quality standards). One of the greatest concerns in wastewater treatment of a textile effluent is the co... Autori: Daniela Cailean, , Florin Brinza ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25538
Studies regarding the potential of biodiesel production in the north-east development region of Romania
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
It is well known that the conventional fuels are responsible for environmental pollution. On the other hand, the unconventional sources for energy and biofuels are more environmentally friendly with a lower pollution degree than the conventional ones. Following the European Union Directive 2003/30/EC regarding the use of biodiesel in mixture with conventional diesel and its gradual replacement, Romania has either to produce its own percentage of biodiesel for the mixture or to import... Autori: Teodor Robu, Alexandru Dragos Robu, Aurel Chiran, Elena Gindu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25540
Environmentally friendly industrial technologies: Case studies
Environmental Engineering and Management Journal › Vol. 8 › Nr. 5 Abstract
Nowadays the global climate change is one of the most significant questions from environmental, social, political and economic point of views. Global warming caused by green house gases emitted into the air is a result of the human activities (Energy Revolution, 2005-2007).
The majority of the industrial processes has significant impact to human life and deteriorates the natural environment. In this paper different technologies (three industrial technologies) will be dealt with spec... Autori: Zsofia Kovacs, Orsolya Kakucs, Janos Lako, , Tamas Fulop, Tatiana Yuzhakova, , Endre Domokos ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25545
Assessment of heavy metal contamination and impact on surface waters in Ia?i city, Romania
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The paper makes qualitative and quantitative analyses of heavy metal contamination of surface waters in Iasi City. The examination of data acquisited from the specific sections of the rivers Bahlui (upstream section, Iasi water treatment plant, Holboca section, downstream section, Iasi water treatment station), Nicolina (quarterly data from the established monitoring system) was performed, based on data provided by the Environmental Protection Agency of Iasi District and Prut Water D... Autori: Corneliu Horaicu, Florea Cornel Gabrian, Irina Grozavu, Catalin Constantin Calu, Monica Horaicu, Brindusa Robu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25546
Contributions to the improvement of ambiental comfort in residential buildings
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The aim of the study is to outline new opportunities of improving buildings ambient comfort and thus to determine energy consumption cut down. The second half of the XX century witnessed the development of society disregarding the extent to which environment was affected by the industrial production; pollution was triggered by the widespread industry which made use of technologies whose main target was the increase of production output at any cost, an aggressive industry with respect... Autori: Vladimir Corobceanu, Răzvan Giuşcă, Raluca Giusca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25549
Plasma chemistry and the environment
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
Plasma is often called the fourth state of matter. It is distinct from other lower-energy states of matter, most commonly solid, liquid, and gas, although it is closely related to the gas phase in that it also has no definite form or volume. Plasma technique may use any gas or gas mixture, within equipment limitations. Each gas or mixture of gases produces distinctive plasma, making possible a very diverse range of chemical environments. Besides the recombination mechanisms developed... Autori: Marian I. Totolin, Ghiocel E. Ioanid, Iordana Neamtu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25550
Improvement of buildings ambiental comfort by using environmental friendly materials and methods
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
Starting from the disadvantages of the polystyrene system – the most important being that they are not biodegradable and their life cycle is relatively small, up to fifteen years – there were conceived several structures for outside walls made of perforated bricks vertically disposed and filled with granular materials. In this manner the thermal resistance is improved knowing that in gaps bigger than twenty millimeters there appear convective streams which substantially decrease ... Autori: Răzvan Giuşcă, Vladimir Corobceanu, Raluca Giusca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25551
Recycling of waste from the grinding operations
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
This paper introduces and analyses the results of some research regarding the recovery of fine chips from the slurry resulted from the finishing operations (grinding) of the parts used in automobile industry. Little chips, in the form of slime, represent a very important source of raw materials when preparing the powders and at the same time it can be appreciated that the volume of these chips in the form of slurry is high enough so that its use can substantially diminish the product... Autori: Olimpia Ghermec, Cristian Ghermec, Marin Didu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25552
Evaluation of corrosive effects in co-firing process of biomass and coal
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The paper examines the effects of high temperature corrosion of the surfaces of heat exchange due to corrosive components formed in the co-combustion of biomass and coal. High temperature corrosion of the surfaces of heat exchange becomes a priority in the combustion of biomass with high chlorine and alkali metals, as alkali chlorides formed deposited on the surfaces of heat transfer, leading to serious consequences for them. Forms of manifestation of corrosion are numerous, the most... Autori: Ionel Pisa, Corina Rădulescu, Lucian Mihăescu, Gheorghe Lăzăroiu, Gabriel Negreanu, Simona Zamfir, Danut Vairenu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25553
Link between environmental and economic efficiency
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The study contains a theoretical and methodological examination of the relationship between the environmental and economic efficiency of firms. It reframes the crucial question, not whether, but when environmental efficiency improvements are profitable for firms? The paper develops the novel concept of eco - profit and try to identifies three gaps in the previous knowledge: (1) the relationship may not be constant across environmental efficiency levels, which means that it needs to b... Autori: Luminita Horhota ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25557
Strategic environmental assessment for plans, programs, policies in Romania: multi-criterial method
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The purpose of Strategic Environmental Assessment (SEA) is to ensure that environmental considerations inform and are integrated into strategic decision-making in support of environmentally sound and sustainable development. In particular, the SEA process assists authorities responsible for plans and programs, as well as decision-makers. The main benefits of SEA consist in: providing high level of environmental protection, improvement of the quality of plan, program or policy making,... Autori: Brindusa Robu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25558
Assessment of human and natural impacts over water quality in the prut river basin, Romania
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The Integrated Water Resources Management (IWRM) concept evolved over time, the focus on river basin management, consultation and coordination with all water users, and the use of the ?polluter pays?? principle being all included in the EU Water Framework Directive (EC Directive, 2000), which forms the basis of water management undertaken in Europe.
The role and significance of water resources for sustainable development, as well as the water crisis experienced nowadays are ... Autori: , Claudia Cojocariu, Corina - Petronela Musteret, Ioana Gabriela Dascalescu, Ionut Caraene ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25559
Inter-cities transfer of a transportation project
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
Transferability process identifies the transportation projects which could be implemented successfully in different cities in order to encourage the good practices. This paper proposes a method to evaluate the environmental efficiency of a project by using a hybrid approach based on utility theory and data mining techniques. Transferability principle is applied to show the environmental efficiency of an access controlled area in the hyper centre of two different cities. COPERT III te... Autori: Catalin Popescu, Luminita Ion, Tatiana Cucu, Jean-Marie Boussier, Augustin Mitu, Daniela Uta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25560
Modeling the extraction process of oil from seeds of white mustard (Sinapis alba)
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
White mustard (Sinapis white) is an annual plant of the Cruciferae family originating from the Mediterranean region and is cultivated in Europe and Asia, mainly for its seeds, but also for animal feed or crop rotation. White mustard seed is also an important source of vegetable oil that can be used as fuel. The chemical composition of mustard seed (Sinapis alba) includes glucosinolate (sinalbozida, sinapina free), essential oils, fatty oils (glycerides of oleic acid, linoleic, linole... Autori: Camelia Ciubota-Rosie, Rodica Diaconescu, Irina Volf, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25561
An investigation of the sorption of acid orange 7 from aqueous solution onto soil
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The goal of the study was to investigate the sorption behavior of Acid Orange 7 (C.I. 15510) onto soil collected from Iasi area (Romania). The sorption isotherm, kinetic and thermodynamic studies were performed by batch mode. The effects of experimental parameters such as contact time, pH value (2-12) and temperature (20 - 400C) have been studied. Also the influence of initial dye concentration (10 - 100 mg/L) and sorbent dosage (from 5 g L-1 to 150 g L-1) were studied. It was found ... Autori: Camelia Smaranda, Dumitru Bulgariu, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25566
Application of several aluminium prehydrolysed coagulants in surface water treatment for potabilization
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
A prehydrolyzed aluminium chloride (PAC), commercial product selected from a previously studied series, and the electrochemically obtained PAC (E-PAC) were tested as coagulants, comparatively with the classical aluminium sulfate (alum). A new method for producing E-PAC has been applied. The level of turbidity, the amount of total organic carbon, the UV-254 absorbance and the residual aluminium were evaluated, for determining the efficiency of the coagulation process in all situations... Autori: Adina Pacala, Ilie Vlaicu, Ciprian Radovan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25569
Textile wastewater treatment by homogeneous oxidation with hydrogen peroxide
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
The textile wastewaters have a diverse composition depending both on the used raw materials and applied manufacturing technologies. These wastewaters may contain various pollutants such as organic compounds (e.g. residual dyes), suspended solids, metal ions etc. Most of dyes are synthetic compounds with aromatic molecular structures and non-biodegradable. The oxidative destruction via homogenous oxidation processes with hydrogen peroxide (simple chemical oxidation with H2O2 or advanc... Autori: Carmen Zaharia, Daniela Suteu, Augustin Muresan, Rodica Muresan, Alina Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25570
Kinetic study of cobalt(Ii) adsorption on peat activated by simple chemical treatments
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
In this study the adsorption of cobalt(II) from aqueous solutions on peat (from Poiana Stampei, Romania) activated by simple chemical treatments, was investigated from kinetic point of view. The chemical treatments suppose the mixing of peat with aqueous solutions of common chemical reagents (H2SO4, NaCl and NaOH), without the addition of supplementary additives. An increase of adsorption capacity of peat was obtained in case of treatments with NaCl and NaOH respectively, and this is... Autori: Corneliu Caramalau, Laura Bulgariu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25571
Assessment of the anthropogenic impact on water systems by fluorescence spectroscopy
Environmental Engineering and Management Journal › Vol. 8 › Nr. 6 Abstract
Organic matter is ubiquitous in every type of aquatic system and due to the influence that it has on their ecological health, can be used as a useful water quality indicator. Fluorescence spectroscopy has been efficiently used in the past decades to determine and characterize organic matter, and its link to function and chemical water quality.
In this paper, fluorescence fingerprints are presented in order to evidence the anthropogenic influence on different aquatic systems. Using f... Autori: Elfrida M. Carstea, Luminita Ghervase, Gabriela Pavelescu, Dan Savastru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25576
Overview on paper and board recycling in Europe
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In Europe, recovered paper is a valuable raw material for the paper industry already since the early 20th century, actually corresponding to half of the total use of fibres for paper and board production. The aim of this paper is to describe the present status of paper recycling in Europe and thereby to create a data basis for evaluation the results of the FP7 project ?Recovered Paper Sorting by Innovative Technologies ? SORT IT. The overview is based on specific questionnaires addre... Autori: Dan Gavrilescu, Elena Bobu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25579
Management of the northern-eastern region of romania viewed from the perspective of ecotourism development
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
Tourism and services are important components of any developed European society. The Northern-Eastern Region of Romania (NER), which comprises six counties with various problems, is lacking of good promotion and there are major gaps between the component counties. The failures of the communication and promotion system are caused by an insufficient development of the domestic network of tourist information offices within the towns and villages. The limited financial resources of the l... Autori: Florin Alexandru Luca, Igor Creţescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25580
Enhancement of separation performances of a new azoic derivative from industrial water and the posibility to recover its complex as nanomaterial
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In order to obtain new complexes of Fe(III) with multiple uses, their characteristics, important applications and also the obtaining conditions are studied. The obtaining conditions consist in mixing solutions of the same concentrations of ligand 2 amino-6-methoxy-benzothiazole sulphonic acid??†’1-naphtol-4-sulphonic acid with FeCl3. The solutions are mixed in molar ratios of 1:1, 2:1 and 3:1 (ligand to central metallic atom). For determining the molar ratio ligand:central metall... Autori: Daniela Zavastin, Doina Sibiescu, Igor Creţescu, Ioan Roşca, Mihaela Dana Tutulea, Mihaela Vizitiu ISSN: 1843-3707 http://www.ecozone.ro/reviste.php?RID=25581
A new real-time monitoring technique of the biochemical constituents of the environment
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
As a result of the global climatic changes generated by the alteration of the environment through polution, the ecosystems' natural ressources are incontrollably distributed, generating unforseeable effects at the level of the subsequent evolution of the natural balance factors. One of the greatest challenges of the science concerned with environment protection, is that of real time monitoring of the biochemical constitution. The real time monitoring of a great number of biochemical ... Autori: Andrada Pretorian, Bojin Dionezie, Gabriel Epure, Ion Savu, Lucia Mutihac, Mihaela Muresan, Nicoleta Petrea, Petrisor Zamora Iordache, Razvan Petre, Rodica Lungu, Vasile Somoghi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25583
New complexes used to increase the dying process efficiency of the textile materials in the context of sustainable development
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
This work presentes a study of preparation and stability in aqueous medium of complexes obtained by the reaction between Fe(III) with 2-amino-6-methoxy-benzothiazol-sodium sulphonate ??†’1 naphtol-4-sodium sulphonate. In this purpose, the investigation methods applied were as follows: pH-metry, conductometry, and the UV-VIS spectrophotometry. The molar combination ratio of ligand to central metallic atom, and the stability constants for new obtained compounds were determined usin... Autori: Doina Sibiescu, Gabriela Carja, Ioan Roşca, Laura Chirila, Mihaela Vizitiu, Romen Butnaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25585
Chelating sorbent containing two types of functional groups hydroxamic acid and amidoxime for lead (II) ions effluent management
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The removal efficiency of Pb(II) from aqueous solutions by sorption on a bifunctional acrylic ion exchange resin with groups of hydroxamic acid and amidoxime is presented. It was found that Pb(II) sorption potential varies as function of solution pH, initial metal concentration, contact time and temperature. From aqueous solutions with Pb(II) initial concentration of 82.96 ??g/mL the sorption percentage is 98.64%. The Langmuir and Freundlich isotherms were used to model the Pb(II) ... Autori: Anca Ceica, Carmen Paduraru, Igor Creţescu, Lavinia Tofan, Violeta Neagu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25586
Removal of dunkel blau dye from aqueous solutions by fungal and peat biomass in batch mode
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
Wastewaters of textile and leather dying industries contain significant quantities of water-soluble dyes. Moreover the temperature and pH of these wastewaters may be controlling variables affecting the biosorption performance. In this study the sorption of dark blue dye by Aspergillus biomass and peat was studied as a function of temperature, initial dye concentration, and initial pH values. In addition, the effects of sorbent dosage on the sorption processes were systematically stud... Autori: Cornel Cojocaru, Cornel Pohontu, Igor Creţescu, Mariana Diaconu, Roxana Elena Benchea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25587
The treatment and minimization of metallurgical slag as waste
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The slags are an important waste and by-products of metallurgical industry. The present paper summarizes results obtained from physical and chemical analyses on metallurgical slag provided from S.C. ?Mittal Steel Galati? S.A. The physical structure and gradation of granulated slag depend on the chemical composition of the slag, its temperature at the time of water quenching, and the method of production. The following mineralogical components were noticed through bypowder X-ray diffr... Autori: Maria Cioroi, Licuta Nistor Cristea, Igor Creţescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25588
Integrated treatment of leachate from municipal waste solid landfill
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The present paper proposes an integrated-treatment process of leachate from a municipal landfill, which involves two treatment steps. The first step consists in diminishing the organic content through an advanced oxidation process using ozone and hydrogen peroxide. The second step is performed in order to diminish the content of heavy metals through a sorption process on a natural low-cost biosorbent, thus the traces of organic substances remained after oxidative degradation or oxida... Autori: Carmen Paduraru, Corneliu Pohontu, Igor Creţescu, Lavinia Tofan, Marius Sebastian Secula, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25589
Biosorption of malachite green from aqueous solutions onto biomaterials
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The use of biomaterials as biosorbents for treatment of wastewaters will provide as a potential alternate to the conventional treatment methods. The main advantages of biosorption are high selectivity , cost effectiveness and good removal performance. World wide numerous low cost bio materials have tried for biosorption of dyes. In this present investigation, the dead biomass of Penicillium sp. fungus and wood sawdust was used as biosorbents and their capacity to removed malachite gr... Autori: Cornel Pohontu, Florin Luca, Igor Creţescu, Manea Liliana, Mariana Diaconu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25593
Equilibrium and kinetic studies of acid dye sorption onto soils from Iasi area
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The aim of this study was to investigate the Congo Red (CR) sorption behavior onto six soils from Ia??i area, with different characteristics. The rate of sorption of Congo red dye molecules from aqueous solution by soil was studied in batch conditions. The rate of sorption was very rapid in the first 5-10 minutes and reached a maximum in 20 minutes. Kinetic modeling analysis of the pseudo-first-order, pseudo-second-order, intraparticle diffusion and Elovich equations reveals that t... Autori: Camelia Smaranda, Dumitru Bulgariu, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25594
A case study of industrial water polluted with chromium (VI) and its impact to river recipient in western Serbia
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In this work the method for the treatment of industrial waste waters effluents containing hexavalent chromium in three companies during process of treating metal surface with chromic acid is described. Industrial water polluted with hexavalent chromium is collected in separate sewage system. Polluted water is collected in precipitation tanks which are directly connected with neutralization reservoirs. The treatment process includes pre-neutralization by lime-milk, sedimentation, floc... Autori: Igor Creţescu, Mirjana Cvijovic, Predrag Djurdjevic, Slavica Cvetkovi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25596
Ecological education for sustainable tourism in Romania?s North-East region
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The paper tackles the issue of ecological tourism in Romania?s North-East Region. This region offers some opportunities such as low costs for tourist operators and highly qualified local hosting personnel that can make it attractive. The concept of sustainable development is presented and its features are discussed in the context of tourism. Ecological education is presented as a collateral effect that naturally derives from developing a sustainable tourism, especially in Romania?s N... Autori: Brindusa Robu, Carmen Cătălina Ioan, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25597
Impact of chemicals on derivatives with important therapeutic activity in Calendula Officinalis L. flores
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
In the study, the accumulation of secondary metabolites present in Calendula officinalis L. flowers with importance in therapeutics was examined, after the treatment with some substances considered being mutagens. The effect of substances appliedat different concentrations and different times of action was studied, qualitatively and quantitatively, considering various methanol extracts, obtained from the inflorescenses of Calendula officinalis L, which contained polyphenolic fraction... Autori: Brindusa Robu, Constantin Leonte, Elvira Gile, Roxana Vatavu, Teodor Robu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25598
Calendula officinalis L., diclorphenoxiacetic acid (2,4 D), mutagenic, polyphenolic acids
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The former Arad Chemical Fertilizer Plant had an important polluting effect on environment and, although it was shut down in 1990, its environmental heritage still exists. The paper contains a short description of the former plant and its impact on the environment, mainly on the quality of water and soil and emphasizes the effects of polluting heritage that still exists. Today, one of the major problems on the platform of the former Fertilizer Plant is the existence of all concrete b... Autori: Aurica Grec, Florin Dumescu, Ladislau Klein ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25599
Researches on the negative effects assessment (slugging, clogging, ash deposits) developed at the biomass-coal co-firing
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
Using biomass in combustion, as a renewable source of energy, from ecological and economic considerations, sets special demands for control of the co-firing process. The paper aimed to study the problems like slugging, clogging and ash deposits formed on heat exchange surfaces during the co-firing process of agricultural biomass with coal. There are identifies the main factors that influence the formation of flying ash deposits and corrosion process. Most problems of co-firing proces... Autori: Corina Rădulescu, Danut Vairenu, Elena Popa, Gheorghe Lazaroiu, Ionel Pisa, Lucian Mihăescu, Simona Zamfir, Tudor Prisecaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25600
Catalytic wet hydrogen peroxide oxidation of 4-chlorophenol over iron-exchanged clays
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
Chlorophenols were selected for this study because most of them are toxic and difficult to biodegrade. They represent a particular group of priority toxic pollutants listed by the US EPA in the Clean Water Act and by the European Decision 2455/2001/EC. The efficiency of advanced oxidation processes for degradation of chlorophenols has been extensively documented. The catalytic wet hydrogen peroxide oxidation process, involving oxidation with H2O2 and solid catalysts in mild reaction ... Autori: Brindusa Dragoi, , Cezar Catrinescu, Daniela Arsene ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25601
Kinetics considerations concerning the oxidative degradation by photo-fenton process of some antibiotics
Environmental Engineering and Management Journal › Vol. 9 › Nr. 1 Abstract
The aim of this study is the evaluation of photo-Fenton as a suitable advanced oxidation process to degrade ampicillin and streptomycin antibiotics. The degradation was studied by monitoring the organic substrate concentration changes in aqueous solution as a function of reaction time using COD analysis. The oxidation process follows two successive stages. In the first stage (I) the oxidation of the antibiotics takes place with high reaction rate, leading to intermediate oxidation pr... Autori: Cristina Orbeci, Daniela Simina Stefan, Ion Untea, Madelene Dancila ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25602
GIS analysis of wetland covered by Natura 2000 sites
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
Geographical Information Systems (GIS) can be used in biological conservation as decision support systems, integrating the spatially referenced CORINE land cover and using data to assess whether natural protected areas cover particular types of ecosystems and/or biogeographical diversity.
This study analyzes whether the Natura 2000 sites, which are Special Protection Areas and Special Areas of Conservation declared in Romania cover the diversity of wetlands and coastal areas habitat... Autori: Alexandru-Ionut Petrisor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25605
Optimization by NN ? GA technique of the metal complexing process. potential application in wastewater treatment
Environmental Engineering and Management Journal › Vol. 9 › Nr. 2 Abstract
Some samples consisting in silica functionalized in different degrees with dihydroxy-azomethine groups have been tested as sorbents for copper (II) ions from aqueous solutions in different conditions. An indirect monitoring procedure for the complexing process was approached: UV-VIS absorption intensity ? time variation for the metal-containing solution in which complexing silica was soaked. In order to find the conditions in which the maximum efficiency in the metal absorption can b... Autori: Ciprian-George Piuleac, Maria Cazacu, Silvia Curteanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25608
The characterization and the synthesis of a new coordination compound for removal of Cr(III) from wastewaters
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The Schiff base N,N??(salicylidene)-methylenediamine, known as Salmen in combination with Cr(III) forms at pH = 4.5 a greenish precipitate, which is stable at room temperature but decomposed on heating. The study of the Infrared spectra, Electron Spin Resonance (ESR), X-ray diffraction and thermogravimetry has pointed out that the precipitation form is a complex, while the molar ratio showed that the combination rate of Cr(III): N,N?-bis(salicylidene)-methylenediamine is 1:1. The new... Autori: Doina Sibiescu, Ioan Roşca, Irina Spatarescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25619
Study on removal of cadmium from aqueous solutions by adsorption on bael tree leaf powder
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The adsorption behavior of bael tree (BT) leaf powder for cadmium ions from aqueous solutions has been investigated as a function of appropriate equilibrium time, adsorbent dose, adsorbate concentrations and pH using a batch system. Studies showed that the pH of aqueous solutions affected cadmium removal as a result of the fact that removal efficiency increased with increasing solution pH. The maximum adsorption was 93.56% at solution pH equal to 6.0, contact time of 30 min and initi... Autori: Ponnusamy Senthilkumar, Rangasamy Gayathri ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25621
Environmental hazards and anaerobic treatment of wastewaters generated in alcohol industry
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Finding solutions to the waste problems generated by human activity represents a high concern of authorities and environment specialists for many years. Furthermore, energy conservation and reduction of the dependency from fossil fuels represents a top priority of governmental organizations at world level. The developments in alcohol industry have resulted in the increase of wastewaters which are highly polluted with organic substances, causing environmental pollution hazards. A wide... Autori: Carmen Mateescu, Ionel Constantinescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25626
Reduced water consumption in recovered paper plant for sustainable development
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Regardless of the production branch, advanced closing of water circuits in an industrial unit is a today?s requirement. To fulfill this, an advanced treatment of residual water is needed. Use of both specialized devices and specific chemicals leads to clear water that can be further reused. In this paper, the obtained performances with a unit, which uses dissolving air flotation principles for treating the residual water from a recovered paper de-inking plant, are presented.... Autori: Emanuel Poppel, Nela Dumea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25629
Equilibrium and kinetic modeling of Zn (II) sorption from aqueous solutions by sphagnum moss peat
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Equilibrium and kinetics of sorption of Zn (II) ions from aqueous solutions of pH 5 on indigene (Romanian) peat moss were investigated in batch system. The experimental equilibrium sorption data at three temperatures were analysed by Freundlich, Langmuir, Tempkin and Dubinin-Radushkevich sorption isotherm models. Results indicate the following order in to fit the isotherm equations: Langmuir > Tempkin > Dubinin-Radushkevich > Freundlich. The equilibrium sorption capacity determine... Autori: Angelica Kicsi, Doina Bilba, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25632
Studies on the biosorption of Terasil dye by Aspergillus Niger dead biomass
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Textile dyeing process is an important source of contamination responsable for the continous pollution of the environment. Control of water pollution has importance for both organisms, which live in water and those who benefit from water. Many dyes reaching the water source are difficult to decompose and cause many problems due to their carcinogenicity. Consequently, it is important to remove these pollutants from wastewater before their final disposal. This paper reports the resuls ... Autori: Alina Dughila, Alina Stefanache, Cornel Pohontu, Igor Creţescu, Mariana Diaconu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25633
Influence of innoculum acclimation in the biodegradation rate and estimated biodegradbility of cow manure, food waste and oil
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Two different inocula - acclimated and non-acclimated to fat- were used to evaluate the methane production of cow manure, food waste and oily waste in batch assays. The inoculum adapted to fat had a better performance in the methanisation of substrates with significant lipids content. Furthermore, it is demonstrated that an increase in the ratio inoculum/substrate can enhance the initial methane production rate of oily waste when using a non-adapted inoculum, improving also the ultim... Autori: Lucia Neves, Maria Madalena Alves, Raquel Ferreira, Rosario Oliveira ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25634
Olive mill wastewater as a renewable resource
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The olive mill wastewater (OMW) is a stable emulsion composed by water, olive pulp and residual oil. An approach for using this waste as a renewable resource is of greater interest. Several authors have been studding physicochemical treatment methods. However, the biological treatments allow not only the treatment, but also the effluent valorization, by producing several valuable products. This effluent is also a source of natural antioxidants and its extraction is economically attra... Autori: Carina Pereira, Cristiana Goncalves, Isabel Belo, Madalena Alves ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25635
Identifying anaerobic digestion models using simultaneous batch experiments
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
Mathematical models have become a valuable tool to study the anaerobic digestion process, to guide plant design and optimize operation strategies. Models require accurate and significant parameter values for being useful. Although the identification problem is an issue of concern, often is neglected. The described method for model calibration consists on the performance of simultaneous batch experiments (SBE), which requires simple and usually available equipment, and is based on the... Autori: Belen Fernandez, Jordi Palatsi, Josep Illa, M. Angels Colomer, Xavier Flotats ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25636
Biosorption of hexavalent chromium based on modified Y zeolites obtained by alkali-treatment
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The structural modification of external surface of NaY was investigated in order to enhance efficient biosorption systems consisting of a bacterial biofilm, Arthrobacter viscosus, supported on that zeolite, for removing hexavalent chromium from aqueous solutions. The supported bacterial biofilm reduces Cr(VI) to Cr(III) and this cation is then retained in the zeolite by ion exchange. NaY zeolite was modified by alkali-treatments using NaOH 2.0 M, with two different contact periods of... Autori: Bruna Silva, Cristina Quintelas, Hugo Figueiredo, Isabel C. Neves, Manuel F.R. Pereira, Teresa Tavares ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25637
Denitrifying potential of an activated sludge derived consortium
Environmental Engineering and Management Journal › Vol. 9 › Nr. 3 Abstract
The aim of this work was the evaluation of the denitrification potential of a consortium of activated sludge adapted to anoxic conditions. As the carbon source is the main parameter influencing the denitrification process, in the first stage three carbon sources (acetate, citrate and glucose) were assayed in batch activity tests. The highest denitrification efficiency was ttained with acetate, being nitrate and nitrite completely reduced. The adapted sludge was then used as a potent... Autori: Joana Azeredo, Pilar Teixeira, Rosario Oliveira, Zelia Fernandes ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25638
Environmental Engineering and Management Journal, Vol. 9 Nr. 5
Environmental Engineering and Management Journal › Vol. 9 › Nr. 5 ? SUSTAINABLE CONCRETE HARDENING PROCESSES IN NORMAL CLIMATIC AND THERMAL TREATMENT CONDITIONS
? THE ENVIRONMENTAL DIMENSION ? AN INTERDISCIPLINARY RESEARCH AREA
? MENU PLANNING STRATEGY BASED ON ECOLOGICAL FOOTPRINT
? EVALUATING ENVIRONMENTAL IMPACT OF NIGERIAN COMPOSTED WASTES USING LABORATORY EXTRACTION TEST
? IN SITU RADIOFREQUENCY FIELD LEVEL ASSESSMENT IN TWO URBAN AREAS IN ROMANIA: OPEN QUESTIONS TO ELECTROMAGNETIC POLLUTION
? INNOVATIVE SOLUTION FOR WARNING ON HI... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25657
Environmental Engineering and Management Journal, Vol. 9 Nr. 4
Environmental Engineering and Management Journal › Vol. 9 › Nr. 4 ? POLLUTION PREVENTION, A KEY TO ECONOMIC AND ENVIRONMENTAL SUSTAINABILITY
? A COMPARISON BETWEEN DIFFERENT SCENARIOS OF ROMANIAN MUNICIPAL SOLID WASTE TREATMENT BEFORE LANDFILLING
? A STUDY ON ENERGY CONSUMPTION IN ROMANIA
? ENVIRONMENTAL INFLUENCES ON STRESSED METALLIC SURFACES
? ASPECTS OF HYDRODYNAMICS AND MASS TRANSFER IN DIFFUSED AERATION SYSTEMS
? THE STATUS OF SOME SELECTED HEAVY METALS IN ROADSIDE SOILS OF BURSA PROVINCE, TURKEY
? PREPARATION AND CHARACTERI... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25656
Environmental Engineering and Management Journal, Vol. 9 Nr. 6
Environmental Engineering and Management Journal › Vol. 9 › Nr. 6 ? RESEARCH ON NaCl SALINE AEROSOLS I. NATURAL AND ARTIFICIAL SOURCES AND THEIR IMPLICATIONS
? DECISION SUPPORT MODELS FOR SOLID WASTE MANAGEMENT ? AN OVERVIEW
? POLICY AND STRATEGY FOR IMPROVING SUSTAINABLE SOCIAL DEVELOPMENT PROGRAMMES
? APPLICATION
OF SHALLOW POND SYSTEM USING WATER HYACINTH FOR DOMESTIC WASTEWATER
TREATMENT IN THE PRESENCE OF HIGH TOTAL DISSOLVED SOLIDS (TDS) AND HEAVY
METAL SALTS
? TRENDS OF THE COMMUNITARIAN COHESION POLICIES AND ADVERTISING FOR EC... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25658
Environmental Engineering and Management Journal, Vol. 9 Nr. 7
Environmental Engineering and Management Journal › Vol. 9 › Nr. 7 ? MUNICIPAL SOLID WASTE LANDFILLING AND TREATMENT OF RESULTING LIQUID EFFLUENTS
? ROMANIA: ENTREPRENEURIAL VALUES AND SUSTAINABILITY
? THE COMPRESSIVE STRENGTH OF WOODEN BRIQUETTES USED AS RENEWABLE FUEL
? ECO-FRIENDLY EXTRACTION AND SEPARATION METHODS OF CAPSAICINES
? ADDRESSING ISSUES OF GEOENVIRONMENTAL RISKS IN DOBRUJA, ROMANIA/BULGARIA
? ADSORPTION OF 2,4-DINITROPHENOL AND 2,6-DINITROPHENOL ONTO ORGANOCLAYS AND INORGANIC-ORGANIC PILLARED CLAYS
? APPLICATION
O... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25659
Environmental Engineering and Management Journal, Vol. 9 Nr. 9
Environmental Engineering and Management Journal › Vol. 9 › Nr. 9 ? STUDY OF BIODIESEL PRODUCTION FROM OILSEED PLANTS II. EVALUATION OF BIODISEL PRODUCTION FROM SOME CULTIVARS OF RAPES
? STUDY
OF BIODIESEL PRODUCTION FROM OILSEED PLANTS I. EVALUATION OF THE
GENETIC SIMILARITY OF SOME Brassica Napus CULTIVARS USING RAPD MARKERS
? STRUCTURAL CHARACTERIZATION AND IN VITRO CYTOTOXIC POTENTIAL OF COAL DUST IN A ROMANIAN POWER PLANT
? MUNICIPAL SOLID WASTE MANAGEMENT IN BENGHAZI (LIBYA): CURRENT PRACTICES AND CHALLENGES
? COMPARATIVE ENVIRONM... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25661
Environmental Engineering and Management Journal, Vol. 9 Nr. 10
Environmental Engineering and Management Journal › Vol. 9 › Nr. 10 ? AN ASSESSMENT OF OPERATIONAL PARAMETERS FOR THE REMOVAL OF CHLOROPHENOLS FROM WASTEWATER
? ENVIRONMENTAL SCIENCES: A PSYCHOLOGICAL-BEHAVIORAL MODEL FOR RESEARCHERS
? ECOLOGICAL
AGRICULTURE: DYNAMICS OF THE BIOLOGICAL ACTIVITIES IN SOILS CULTIVATED
WITH MAIZE UNDER THE INFLUENCE OF ORGANIC FERTILIZATION
? SOLAR-ASSISTED JOULE-BRAYTON ENGINES USED TO REDUCE CARBON DIOXIDE EMISSIONS
? STUDY OF THE ENVIRONMENTAL EFFECTS OF HEATING SYSTEMS
? MIXED JET-VORTEX METHOD FOR ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25662
Environmental Engineering and Management Journal, Vol. 9 Nr. 11
Environmental Engineering and Management Journal › Vol. 9 › Nr. 11 ? COMPARATIVE CONSIDERATIONS ON THE STRUCTURE OF SOME MOLYBDENUM/NIOBIUM DOUBLE PEROVSKITES OXIDES
? THE INFLUENCE OF THE STORAGE TIME ON THE STABILITY OF BUTTER
? CaCO3 CONTROLLABLE SYNTHESIS BY DOUBLE EXCHANGE METHOD USING CaCl2 RESIDUAL SOLUTIONS
? OPTIMIZATION OF COAGULATION-FLOCCULATION IN THE TREATMENT OF CANAL WATER
? ANODIC DETERMINATION OF PENTACHLOROPHENOL FROM WATER USING CARBON NANOFIBER-BASED COMPOSITE ELECTRODE
? STUDY OF PRECIPITATES GROWTH IN COAGULATION ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25663
Environmental Engineering and Management Journal, Vol. 9 Nr. 12
Environmental Engineering and Management Journal › Vol. 9 › Nr. 12 ? POST-DARCY FILTRATION THROUGH RIGID PERMEABLE MEDIA
? BIOSORPTION OF Cr(VI) FROM AQUEOUS SOLUTIONS ONTO Hydrilla verticillata WEED: EQUILIBRIUM, KINETICS AND THERMODYNAMIC STUDIES
? IMPACT OF BUILDING A TIDAL GATE ON THE YONGJIANG RIVER IN CHINA
? MONITORING OF THE HYDROTECHNICAL TORRENT CONTROL STRUCTURES: A STATISTICAL APPROACH
? RESEARCH ON SOIL PROPERTIES CONSERVATION DURING THE PREPARATION OF GERMINATION BEDS IN GREENHOUSES
? MANAGEMENT OF THE POTATO CROPS FOR MIN... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25664
Environmental Engineering and Management Journal, Vol. 10 Nr. 1
Environmental Engineering and Management Journal › Vol. 10 › Nr. 1 ? COMPACT MICROPULSE BACKSCATTER LIDAR: AIRBORNE AND GROUND-BASED APPLICATIONS
? STUDIES OF THE IMPACT OF AEROSOL OPTICAL PROPERTIES ON CLIMATE CHANGE PROCESSES
? A STUDY OF THE AEROSOL OPTICAL PROPERTIES AT TWO AERONET STATIONS FROM ROMANIA
? COMPLEMENTARY ATMOSPHERIC URBAN POLLUTION STUDIES IN THE NORTH-EAST REGION OF ROMANIA, IASI COUNTY
? ?NGSTR?M TURBIDITY IN THE LOWER LAYERS OF THE TROPOSPHERE
? LIDAR MONITORING OF ANTHROPOGENIC POLLUTION AND NATURAL PHENOMENA
... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25665
Environmental Engineering and Management Journal, Vol. 10 Nr. 2
Environmental Engineering and Management Journal › Vol. 10 › Nr. 2 ? Environmental Engineering and Management Journal, Vol. 9 Nr. 4
? THE PROTECTION OF EQUIPMENTS USING VOLATILE INHIBITORS
? CONTINUOUS SURFACE TEMPERATURE MONITORING TO ESTIMATE SENSIBLE HEAT LOSS BY BUILDING FINISHES
? RECYCLE OF POLYAMIDE DYEING WASTEWATER FOLLOWING DECOLORIZATION WITH POLYMERIC SORBENTS
? PERFORMANCE EVALUATION OF AMINO ACID SALT-BASED COMPLEX ABSORBENTS FOR CO2 CAPTURE
? ADSORPTION EQUILIBRIUM STUDIES ON COPPER (II) IONS REMOVAL BY NATURAL WASTE USIN... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25666
Environmental Engineering and Management Journal, Vol. 10 Nr. 4
Environmental Engineering and Management Journal › Vol. 10 › Nr. 4 ? EFFECT OF ELECTRICAL CURRENT ON H2/ H2O2 GENERATION IN NON-THERMAL PLASMA GLIDING ARC REACTORS
? ADVANCES IN THE VISUALIZATION OF THREE-DIMENSIONAL SEISMIC VOLUME DATA
? CHARACTERIZATION OF ELECTROMAGNETIC RADIATION FROM A PATIENT MONITOR
? METHODS OF ELECTROMAGNETIC INTERFERENCE REDUCTION IN ELECTROCARDIOGRAPHIC SIGNAL ACQUISITION
? SPHERICAL MODEL OF THE HUMAN HEAD EXPOSED TO ELECTROMAGNETIC FIELD
? BRAIN ELECTRICAL ACTIVITY RECORDING IN SOME ELECTROMAGNETIC ENVIRONM... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25667
Environmental Engineering and Management Journal, Vol. 10 Nr. 5
Environmental Engineering and Management Journal › Vol. 10 › Nr. 5 ? HYDROGEL MICROSPHERES BASED ON ENVIRONMENTALLY FRIENDLY POLYMERS WITH POTENTIAL BIOMEDICAL APPLICATIONS
? STUDY ON THE MIXING EFFICIENCY IN A BASKET BIOREACTOR WITH IMMOBILIZED YEASTS CELLS
? MANAGEMENT OF WASTE FROM ELECTRICAL AND ELECTRONIC EQUIPMENT IN CYPRUS ? A CASE STUDY
? SEPARATION AND CHARACTERIZATION OF ANTHOCYANINS BY ANALYTICAL AND ELECTROCHEMICAL METHODS
? AN INTEGRATED DECISION AID FOR IDENTIFYING AND PRIORITIZING STRATEGIES IN FOREST MANAGEMENT
? INFLUEN... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25668
Environmental Engineering and Management Journal, Vol. 10 Nr. 3
Environmental Engineering and Management Journal › Vol. 10 › Nr. 3 ? ADSORPTION OF DYE FROM AQUEOUS SOLUTION USING SILVER WOOD SAWDUST CARBON
? TIME SERIES ANALYSIS OF THE HEAVY METALS LOADED WASTEWATERS RESULTED FROM CHROMIUM ELECTROPLATING PROCESS
? WATER QUALITY CHARACTERIZATION OF THE PRUT RIVER
? ETHICAL AND SUSTAINABLE EDUCATION OF ENVIRONMENTAL ENGINEERS - BETWEEN REALITY AND HOPE
? INTERACTIONS AMONG CLIMATE, VEGETATION AND SOILS IN RADUCANENI ? IASI AREA
? DISTRIBUTION OF MIXING INTENSITY OF OXYGEN-VECTOR DISPERSIONS IN AERATED... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25669
LIFE CYCLE ASSESSMENT FOR CARBON EMISSION OF PLATE GLASS INDUSTRY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Carbon issue is becoming more important all over the world. Plate glass is a typical kind of building materials and the life cycle carbon emission of plate glass is a big contributor, resulting from the energy consumption in the stages of its life cycle which includes four aspects: raw materials acquirement, materials transportation, production and embodied consumption of energy carriers. Based on the relevant data calculation from China’s condition, the life cycle carbon emission of plate gla... Autori: Meng Liu, Wenlong Li, Qunying Cheng, Yueer He, Xinyun Caohttp://www.ecozone.ro/reviste.php?RID=25672
EFFECT OF THE INCYLINDER FORCED SWIRLS ON PERFORMANCE AND EMISSION OF DIESEL ENGINE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 The combustion process plays the important role to improve performance and emission of diesel engine. To improve the rate of combustion process, the fuel-air mixing process should be accelerated. In this paper, based on the Double Swirl combustion chamber, from the macroscopic characteristics and simulation analysis, the effect of the incylinder forced swirls on performance and emission of diesel engine was studied. The results indicated that due to the incylinder forced swirls, the distribution... Autori: Chang-Yuan Wang, Fu-Shui Liu, Xiang-Rong Lihttp://www.ecozone.ro/reviste.php?RID=25673
REMOVAL OF p-XYLENE BY A DBD-TYPE PLASMA COMBINED WITH CATALYST
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 The removal efficiency of p-xylene from gas stream was experimentally investigated in a dielectric barrier discharge (DBD) reactor, which was combined with catalyst, MnO2/Al2O3 pellets, in the discharging and the afterglow area, respectively. The CO2 selectivity of the two kinds of structure was also discussed. The results showed that in both the situation, the synergetic removal efficiency of p-xylene by the DBD-catalyst hybrid system increased with increasing the discharge power and decreasing... Autori: Hongxia Liu, Yun Liuhttp://www.ecozone.ro/reviste.php?RID=25674
THE ESTABLISHMENT OF EIPs-MFA MODEL FOR THE EVALUATION OF MATERIAL METABOLISM EFFICIENCY IN INDUSTRIAL AREAS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Material Flow Analysis (MFA), as a method of Industrial Ecology (IE), is a useful tool to measure and analyze the material metabolism or physical dimensions of a society’s production and consumption at various scales. However, there are different MFA frameworks and points corresponding to different researching scales. This paper proposes to introduce a physical Input- Output Table (PIOT), as means to establish the Eco-industrial parks MFA model (EIPs-MFA) and indicator systems, for analyzing t... Autori: Yao Shi, Rusong Wang, Jingru Liu, Jianxin Yang, Tianzhen Juhttp://www.ecozone.ro/reviste.php?RID=25676
BACKFILLING TECHNOLOGY OF SUBSTITUTING WASTE AND FLY ASH FOR COAL UNDERGROUND IN CHINA COAL MINING AREA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 As one of the very few countries using coal as its dominant energy resources, China has the coal production exceeding one thirds of in the world, added to it are the problems of environmental damages and soil resource destructions result from the solid waste, such as mining waste discharged in the process of coal production and fly ash deserted from the electric power plant etc. In this paper, the mineral ingredient of waste and fly ash was tested by X-ray Diffraction. Meanwhile, the deformation... Autori: Yanli Huang, Jixiong Zhang, Qiang Zhang, Shoujiang Niehttp://www.ecozone.ro/reviste.php?RID=25677
EFFECT OF MICROBIAL ACTIVITY IN THE RHIZOSPHERE OF WETLAND PLANTS ON REMOVAL OF TOTAL ORGANIC CARBON AND NITROGEN FROM WASTEWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Rhizobag incubation experiments were conducted to study microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), soil respiration and enzyme activity (urease and phosphatase) in the rhizosphere soil of three different wetland plants and its influence on the removal of total organic carbon (TOC) and total nitrogen (TN). MBC, MBN, soil respiration and enzyme activity were higher in the rhizosphere than in the non-rhizosphere soil of the wetland plants. Microbial activity in the rhizospher... Autori: Defu Xu, Hua Fang, Xianghua Xu, Xiaoli Zhao, Yingxue Lihttp://www.ecozone.ro/reviste.php?RID=25679
STUDY ON THE CHARACTERISTICS OF ROOTS DISTRIBUTIONS AREA IN THE CARAGANA-GRASS COMPOUND SYSTEM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 This study was aimed to explore root spatial distributions on the different sizes of belt spaces in the caragana-grass compound system in Siziwangqi county, Inner Mongolia. The root spatial distributions were observed at selected typical sample plots within the 5m, 10m and 16 m belt-space caragana - grass compound systems. The area of roots spatial distributions were highly correlated with the caragana-grass compound system belt space. Root distribution area was found to decrease with soil depth... Autori: Yongjun De, Huijun An, Qiuju Guo, Dongmei Ye, Liansheng Guohttp://www.ecozone.ro/reviste.php?RID=25681
ELECTROCHEMICAL TREATMENT OF MUSTARD WASTEWATER USING CARBON PAPER ELECTRODE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 Treatment of mustard wastewater with high salinity and organic concentration by electrochemical degradation was studied. The influence of the critical parameters of electro-oxidation such as pH, current density, salt concentration and energy consumption on the removal efficiency of COD and NH3-N was studied using porous carbon electrode. It was found that the COD and NH3-N removal efficiency could be enhanced by increasing pH, current density and salt concentration. The current density of 0.032A... Autori: Hainan Ai, Qiang He, Hongxiang Chai, Xuebin Hu, Tengrui Longhttp://www.ecozone.ro/reviste.php?RID=25685
AN APPRAISAL OF TWO TRACER METHODS FOR ESTIMATING TILLAGE EROSION RATES UNDER HOEING TILLAGE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 6 An increasing recognition of tillage erosion processes has shown that soil redistribution by tillage directly contributes to soil loss in mechanically and nonmechanically agricultural areas worldwide. Soil translocation by tillage is normally measured by means of tracers, with which a volume of soil is labeled, and therefore yielding tillage erosion rates in a field. Two tracer methods for estimating tillage erosion rates were appraised to understand the adaptability to local conditions in the h... Autori: Jianhui Zhang, Fucheng Lihttp://www.ecozone.ro/reviste.php?RID=25687
INFLUENCE OF DISINFECTION WITH CHLORINE DIOXIDE ON DISSOLVED ORGANIC MATTER AND BIOLOGICAL TOXICITY OF URBAN WASTEWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Chlorine dioxide (ClO2) is widely used as disinfectant in tertiary sewage treatment process. In order to identify the impact of disinfection with ClO2 on treated water quality, secondary effluent pretreated by coagulation was disinfected by ClO2, and the characteristic of dissolved organic matter (DOM) and the biological toxicity of the water before and after disinfection were investigated. The results showed that ClO2 could remove part of DOM and the removal rate of hydrophobic (HO) component b... Autori: Lihua Cheng, Xuejun Bi, Aihua He, Changqing Liu, Qi Wang, Zuliang Liaohttp://www.ecozone.ro/reviste.php?RID=25692
EXERGY ANALYSIS OF HYDROGEN PRODUCTION VIA BIOMASS STEAM GASIFICATION AND PARTIAL OXIDATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Hydrogen production via biomass steam gasification and partial oxidation is analyzed from exergy aspect. Based on cypress sawdust gasified from 800°C to 1200°C, the exergy value of H2 from steam gasification rises from 1410.80 kJ kg-1 to 7922.89 kJ kg-1, while that from partial oxidation increases from 988.30 kJ kg-1 to 3097.81 kJ kg-1. The exergy efficiency of H2 from biomass also increases for both steam gasification (6.42–36.08%) and partial oxidation (4.50–14.11%). However, the exergy ... Autori: Yaning Zhang, Bingxi Li, Hongtao Li, Bo Zhang, Hui Liuhttp://www.ecozone.ro/reviste.php?RID=25693
SCREENING AND BIOLOGICAL CHARACTERISTICS OF A MANGANESE TOLERANT MICROORGANISM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Ecological adaptation of heavy metal polluted environments is significantly enhanced through plants inoculated with plant growth-promoting bacteria (PGPB), and the cost of phytostabilization in metal tailings can be reduced. On the basis of the systematic investigation of manganese tolerant plants which grew on Xiangtan manganese tailings, rhizosphere soils of th Chenopodium album Linn. were collected. One yellow manganese-resistant strain named XZL01 was isolated from the rhizosphere of fresh p... Autori: Shengguo Xue, Yameng Ma, Xiaohua Zhou, Xiyan Zhou, Fenghao Liuhttp://www.ecozone.ro/reviste.php?RID=25696
PERFORMANCE OF MEMBRANE BIOREACTOR (MBR) PROCESS TREATING WASTEWATER CONTAINING DIFFERENT CONTENT OF SEAWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 A submerged membrane bioreactor (MBR) was employed to treat wastewater containing different content of seawater in this work. During the process, the operating conditions were as follows: COD was 800-1000 mg/L, ammonium-N was 80-100 mg/L, pH was 7.5-8.5, mixed liquor suspended solids (MLSS) was around 7000 mg/L, dissolved oxygen (DO) was 2-4 mg/L. The results showed that the ammonium-N removal was better than COD removal. Sludge settling property was good in saline wastewater treatment, and the ... Autori: Jin Li, Deshuang Yu, Dan Wanghttp://www.ecozone.ro/reviste.php?RID=25697
PREPARATION AND CHARACTERIZATION OF CALCIUM ZINCATE SYNTHESIZED BY MICROWAVE METHOD
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Calcium zincate as an active material in Zn/Ni secondary battery has been successfully synthesized by microwave method. The sample was characterized by X-ray diffraction (XRD), thermogravimetric analysis, scanning electron microscope (SEM), chargedischarge test (CT) and cyclic voltammetry (CV) analysis. The results show that the chemical composition of sample is Ca(OH)2·2Zn(OH)2·2H2O with regular spherical shapes. The results from CV and CT measurement indicate that the battery has very high d... Autori: Mengliang Tong, Xuanyan Liuhttp://www.ecozone.ro/reviste.php?RID=25700
TRANSFORMATION AND FLUORESCENCE SPECTROSCOPY OF DISSOLVED ORGANIC MATTER (DOM) IN LANDFILL LEACHATE TREATED BY COMBINED PROCESS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 The paper analyses the removal efficiency and fluorescence spectroscopic characterization of landfill leachate dissolved organic matter (DOM) fractions in the combined stripping, fenton oxidation, sequence batch reactor, and coagulation process. The high contents of DOM of landfill leachate in each process unit were fractionated into HA, FA, and HyI. The result was the combined process availability for effective removal of DOM fractions. The removal rates for DOM, HA, FA and HyI were 91.9%, 97.1... Autori: Zhiping Liu, Jin-song Guo, Fang Fanghttp://www.ecozone.ro/reviste.php?RID=25702
INCREMENTAL COST ALGORITHM OF WATER-SAVING PROJECTS FOR GREEN BUILDING
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Because the green building industry starts late in China, both the government and developers have a vague view on incremental cost conception, component and algorithm of water-saving projects for green building. According to the comparative analysis of the project and economic efficiency between green building and traditional building in water-saving and water resource utilization aspect, this material presents the conception, component, algorithm and calculating method of the incremental cost i... Autori: Qiang He, You-Zhi Hao, Fang Zhao, Hong Xiang Chaihttp://www.ecozone.ro/reviste.php?RID=25703
FORCED SWIRL COMBUSTION CHAMBER IN DIESEL ENGINE: NUMERICAL SIMULATION AND EXPERIMENTAL RESEARCH
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Fuel injection system, intake system and the geometric shape of combustion chamber are the three key factors to the fuel-air mixture and combustion process for diesel engine. long with the need of high power density in diesel engine, the pressure of intake is higher increasingly. Together with the effect of high pressure fuel injection, the fuel-air mixture and combustion process is hard to spread as usual. In this circumstance, the performance of power, heat efficiency and emission in diesel en... Autori: Shang Yong, Liu Fu-Shui, Li Xiang-Ronghttp://www.ecozone.ro/reviste.php?RID=25704
SOLAR SYSTEMS FOR WOOD DRYING
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Drying wood requires a significant amount of thermal energy, in order to heat-up wood and evaporate the water inside it.Therefore, solutions to minimize this consumption are a topic of maximum interest for wood-processing industries. Employingsolar power for drying wood is not a novelty, considering that this possibility was already acknowledged at the end of the 17thcentury, but since then, kiln design was significantly improved, once with the progress of knowledge regarding the mechan... Autori: Ion Marinescu, Mihaela Cmpean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25727
DEVELOPMENT OF MUNICIPAL SOLID WASTE MANAGEMENT PRACTICES IN DIFFERENT GEOGRAPHICAL UNITS AND URBAN SYSTEMS IN CHINA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 On the basis of spot investigation of dozens of cities and hundreds of towns and villages in different regions in China, combining with the fundamental methods of municipal solid waste management (MSWM), three development modes of MSWM were proposed according to the land area, economic level, nature condition and population distribution of various geographical units and urban systems. They were respectively for the city/district system, the city/town (district)/village system and the city/ count... Autori: Haibin Chen, Li Zhang, Jingcheng Zhou, Yang Huhttp://www.ecozone.ro/reviste.php?RID=25707
SEPARATION OF POLLUTANTS FROM WATER USING THE FREEZE - CONCENTRATION PROCESS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 In this study, the application of freeze-concentration method to treat low-concentration polluted water was demonstrated. The effects of stirring, the temperature in a freezing cabinet and the volume of water involved in the freeze-concentration treatment of pollutants were investigated under laboratory conditions. The removal of pollutant by freeze-concentration treatment was also attempted. Results had shown that the ratio of pollutants removed was about 83% when the experiment was carried out... Autori: Yingjie Dai, Ying Zhang, Baiyin Liu, Masahiro Teduka, Yongbo Lin, Shunitz Tanakahttp://www.ecozone.ro/reviste.php?RID=25709
QUANTIFYING THE BENEFICIAL EFFECT OF DIFFERENT PLANT SPECIES ON AIR QUALITY IMPROVEMENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 The beneficial effect of urban plants in improving air quality is often mentioned in literature but is seldom quantified and valuated. Quantification and valuation of the benefits provided by urban plants allow direct comparison between plant species and help make more informed urban planning decisions. Based on fieldwork study and data processing, carbon dioxide (CO2) sequestration, oxygen (O2) generation, transpiration cooling, sulfur dioxide (SO2) removal and dust interception are quantified ... Autori: Qijiao Xie, Zhixiang Zhou, Fang Chenhttp://www.ecozone.ro/reviste.php?RID=25710
INFLUENCE OF FERRIC IRON CONTENT ON THE TREATMENT EFFICIENCY OF PRINTING AND DYEING WASTEWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Adding ferric or bio-ferric agent is method to improve membrane fouling and prolong membrane life.This paper analyses the influence of ferric content on treatment effect of printing and dyeing wastewater, through examining the change of COD and dyestuff content in supernatant with the change of ferric content in sludge and in supernatant. COD in supernatant is reduced with increase of ferric content in sludge, and the dyestuff content in supernatant is reversed, which might be due to the adsorpt... Autori: Shifeng Ji, Chunmei Gao, Hong Yang, Ming Chu, Chunfeng Wanghttp://www.ecozone.ro/reviste.php?RID=25711
EVALUATION OF THE TRAFFIC AIR QUALITY BASED ON FUZZY COMPLEX MATTER ELEMENT METHOD AND ENTROPY WEIGHT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 For a better evaluation of the impact of road traffic about air quality, this paper considers the development of a new evaluation index system and methods. They address the assessment of the air quality around the areas with an intense road traffic, according to Chinese standards considering sulfur dioxide index (SO2), total suspended particles index (TSP), floating dust index (PM10), nitrogen oxides index (NOX) and carbon monoxide index (CO). A systematic air quality evaluation model was establ... Autori: Zhao-hui Liu, Zhi-bin Qinhttp://www.ecozone.ro/reviste.php?RID=25714
CHARACTERISTICS OF COALBED PRODUCED WATER IN THE PROCESS OF COALBED METHANE DEVELOPMENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Chemical composition data of coalbed produced water can provide information to determine the water sources, understand the evolution, select appropriate treatment processes and increase the utilization efficiency of water resources. Based on methods of hydrogeology, water chemistry and environmental chemistry, the characters of coalbed produced water in the Powder River Basin in the USA and Qinshui Basin in China have been analyzed. Conclusions have been drawn as follows: (1) The coalbed produce... Autori: Guang Xu, Li Tong, Mei Yang, Yi-wen Juhttp://www.ecozone.ro/reviste.php?RID=25715
EVALUATION AND APPLICATION OF SEMI-DRY FUEL GAS DESULFURIZATION (FGD) WITH FABRIC FILTER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 7 Semi-dry FGD with fabric filter has been extensively studied in recent years. After a series of industrial tests on 300MW boiler with semi-dry FGD and fabric filter, some operation notes were obtained. The test results show that CFB-FGD with fabric filter can be run longer and stable, and its actual performance is even higher than the design parameters. Moreover, the pressure drop of fabric filter after CFB-FGD is 600~800Pa (higher than normal). The fabric filter, which contributes to the desulf... Autori: Tong Li, Han Yi, Han Xu, Reti Hai, Wang Wenxinghttp://www.ecozone.ro/reviste.php?RID=25716
HORIZONTAL AXIS WIND MICROTURBINES WITH POWER OF 10 KW
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Under the circumstances of the deficit in total energetic resources of the Republic of Moldova, non-traditional sources as wind,solar and hydraulic energies are very opportune. Concurrently with the conventional energy resources (fossil fuels, atomic energyetc.), wind energy begins to regain its positions not only from ecological, but also from economical point of view. Also, the windenergy conversion systems could play a significant role in the production of mechanical, electrical ener... Autori: Anatol Sochireanu, Ciupercă Rodion, Ion Bodnariuc, Ion Bostan, Ion Dicusară, Ion Sobor, Iulian Malcoci, Marin Guţu, Nicolae Trifan, Oleg Ciobanu, Radu Ciobanu, Radu Crudu, Valeriu Dulgheru, Viorel Bostan, Vitalie Gladş ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25717
PHOTODEGRADATION PROCESSES FOR ADVANCED TREATMENT OF INDUSTRIAL WASTEWATERS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:The textile industry uses high quantities of water which in many cases are disposed to the environment with inadequate treatment.In this work the effluents from the polyamide textile industry containing Bemacid Gelb, Bemacid Rot and Bemacid Blau weretreated by heterogeneous photodegradation. Treatment performances have been evaluated in terms of conductivity, turbidity, totaldissolved solids (TSD), chemical oxygen demand (COD), total organic carbon (TOC), biochemical oxygen demand (BOD5... Autori: Luminita Andronic ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25720
PREDICTION OF TiO2 AND WO3 NANOPOWDERS SURFACE CHARGE BY THE EVALUATION OF POINT OF ZERO CHARGE (PZC)
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Point of zero charge (PZC) is defined as the condition at which the surface charge density of a material equals to zero and, formost of the solids it is strongly pH dependent. The PZC can be controlled by tuning the solid surface properties (crystallinestructure, morphology) and by a proper environment control, thus it is important to evaluate the PZC for a certain type of material,in given working conditions, for enhancing the efficiency in the targeted application (e.g. layer by layer... Autori: Laura Maria Bertus, Radu Adrian Carcel ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25721
DEVELOPMENT, MANUFACTURING AND TESTING VERTICAL AXIS WIND TURBINES WITH HELICAL BLADES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Under the circumstances of the total energetic recourses deficit in the Republic of Moldova appears the problem of non-traditionalsources utilization. An important source of renewable energy is the wind energy. This paper deals with two new concepts ofvertical axis wind turbine (VAWT) with helical blades, elaborated by the authors.The main element of the wind turbine is, certainly, the rotor. It is directly subdued to the action of the air flow and transforms thekinetic energy of the ai... Autori: Ion Bostan, Ion Vişa, Rodion Ciupercă, Valeriu Dulgheru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25722
A MICRO-HYDROPOWER STATION FOR THE CONVERSION OF FLOWING WATER KINETIC ENERGY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:An efficient conversion of kinetic energy of river waters into mechanical or electrical energy without building barrages isprovided by micro-hydropower stations. Increased efficiency is achieved by an optimum position of the blades withhydrodynamic profile. The formulation used to compute the hydrodynamic forces is an inviscid - boundary layer model. Microhydropowerstation provides kinetic energy conversion of river water into mechanical or electrical energy without buildingbarrages. In... Autori: Anatol Sochireanu, Ion Bostan, Ion Dicusară, Nicolae Trifan, Oleg Ciobanu, Radu Ciobanu, Valeriu Dulgheru, Viorel Bostan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25723
CHALLENGES FOR BIO-BASED PRODUCTS IN SUSTAINABLE VALUE CHAINS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:This work concerns studies related to strategic development of products in which bio-based plastics are or will be applied, referredto as bio-based products. The studies cover (1) current and potential benefits of bio-based products in extended value chainsincluding activities after end-of-life of products, (2) value communication between stakeholders in extended value chains, and (3)creating an integrated development approach for optimized bio-based products. Most existing models for v... Autori: J.W. Lin, Jarmila Kopeck, Kim Ragaert, Ludwig Cardon, Maarten De Groote, Rolf Koster ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25728
CONCEPTUAL DESIGN OF A SOLAR THERMAL SYSTEM WITH DISH SOLAR COLLECTORS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:In order to comply with the 20-20-20 Directive, by which every EU member state has pledged to produce 20% of the energy byusing renewable sources, solar energy for heating became a much addressed to topic, as a viable and up-scalable option. Researchis devoted to increasing the efficiency while reducing the production costs and the development of novel solar thermal systemswith dish collectors can contribute with innovative solutions. Thus, the first step in the development process, the... Autori: Daniela Ciobanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25730
SPECIFIC FEATURES OF A COUNTER-ROTATING TRANSMISSION FOR RENEWABLE ENERGY SYSTEMS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:A specific topical issue both for small hydropower plants and wind turbines refers to the discrepancy between the relatively lowspeed of the water turbine/wind rotor and relatively high speed of the electric generator: the turbine/rotor has higher performancesat lower speeds, while the generator performances are increasing with the speed. Usually, this problem can be solved connecting aproper speed increaser between the turbine (increaser input) and generator (increaser output). Besides... Autori: Codruta Jaliu, Oliver Climescu, Radu Saulescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25732
DESIGN OF THE SUSTAINABLE URBAN VEHICLES - NEW CONCEPTS FOR PHOTOVOLTAIC INTEGRATED SOLUTIONS IN AUTOMOTIVE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:The demand for new and high performance products in the automotive industry is increasing exponentially and this trend imposesinnovative concepts for cars. The future solutions for the automotive industry may find their answer in the fabricationtechnologies and also in alternative propulsion and energy production.The car design field cannot ignore the global economic crisis, imposing new approaches in terms of materials and cost effectivetechnologies and by the means of environmental pr... Autori: Mihai Comşiţ ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25733
4-BAR GEARED LINKAGE USED FOR PHOTOVOLTAIC AZIMUTH ORIENTATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:In order to capture as much solar energy as possible, the photovoltaic converter has to follow the sun movement during a day; thiscan be achieved by a tracking system. Most tracking systems have complex and costly structures that can provide wide anglevariations. This paper presents a geared linkage that is build up by a planetary system of gears fitted on a linkage, and thus helpsin reaching wide angles. Starting from a patented linkage, which reaches ≈200° angular strokes, by a... Autori: Dorin Diaconescu, Ioana Hermenean, Nora Creanga ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25736
ECOLOGIC MODIFICATION OF WOOD USING ALKYLIMIDAZOLIUM-BASED IONIC LIQUIDS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:In this paper, the influence of two types of imidazolium-based ionic liquids (ILs) on the properties of sycamore maple (Acer pseudoplatanus) veneers, at 25 0C, 60 0C and 80 0C has been studied by using contact angle measurements and Fourier transform infrared spectroscopy analysis. The measurements showed that wood wettabillity is increased by IL treatment. It has been determined that the ILs decrease the crystallinity and improve the flexibility of the cellulose matrix. Also, it has be... Autori: Attila Porzsolt, Catalin Croitoru, Christian Friedrich, Silvia Patachia ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25737
HYDRAULIC ASPECTS OF SCALING IN GEOTHERMAL ENERGY SYSTEMS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:The European countries have few fossil fuel reserves and the main goal of the Lisbon strategy is to promote the utilization ofrenewable energy sources. In Hungary, because of the huge amount of thermal water reserves, geothermal energy might be one ofthe energy sources which can help to raise the share of renewables in the energy market of the country. Beside the positive aspectsthe use of thermal water for energy purposes have some important physical, environmental and economical aspec... Autori: Ferenc Kalmr, Imre Cski ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25738
SYSTEM IDENTIFICATION TOOLS FOR THE STABILIZATION OF THE WASTE-BED TEMPERATURE WITHIN A WASTE-TO-ENERGY PLANT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Incineration plants are used since the beginning of the twentieth century to transform the mixed municipal waste into thermalenergy and to convert the hazardous components of waste into harmless compounds. To minimize the environmental pollutionand maximize the energy efficiency of the produced energy, the control of the complex processes that occur into the waste toenergy conversion is of major importance. In this work, the system identification approach is used to determine the dynami... Autori: Adrian Danila ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25739
MOTION LAW OF A PSEUDO-EQUATORIAL SOLAR THERMAL COLLECTOR FOR SPECIAL WORKING REQUIREMENTS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:A comparative analysis is drawn on the energetic responses numerically simulated for Brasov, Romania location, delivered bytwo mono-axial pseudo-equatorial STCs (solar thermal collectors): a flat plate STC and a STC with heat pipes; the two systemsare destined for future implementation on Transilvania University Campus. Accordingly, two tracking programs are consideredfor the diurnal motion: a) of 1h constant duration steps, for school courses interval (September-June) and b) 1-step pro... Autori: Maria M. Vatasescu, Veronica E. Dombi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25740
REUSE OF PET WASTE AS THERMOPLASTIC COMPOSITES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:Composite manufacturing from plastic wastes of polyethylene terephthalate (PET) type, sand-blasting represents a materialrecovery of the wastes. This process can be achieved, with the purpose of reducing the material consumption which is in deficit,production costs, and the duration of the technological processes.Thermoplastics composites obtained by a melting process at 170-200 oC, wastes incorporation and solidification in forms replacesuccessfully the thermo rigid composites obtained... Autori: Ioan Ropotă, Marcela Muntean, Mihai Bratu, Ovidiu Dumitrescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25741
SUSTAINABLE ENVIRONMENTAL DEVELOPMENT IN THE MINING INDUSTRY APPLIED FOR GORJ COUNTY, ROMANIA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 8 Abstract:The national legal framework harmonization, including in areas concerning environmental protection, with the Europeanstandards in the field, is a goal of paramount importance with regard to Romania's accession to the EU structures. From thisperspective, all the organizations, agencies and individuals operating in this field must be acquainted with the European Union'sprograms of environmental action.In this context, the paper aims to provide an overview of the relevant trends and develo... Autori: Constanţa Enea, Constantin Enea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25742
REMOVAL OF METHYL ORANGE AND METHYLENE BLUE DYES FROM WASTEWATER USING SAWDUST AND SAWDUST-FLY ASH AS SORBENTS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:Methyl orange and methylen blue are two dyes resulted from the textile industry. They are not raising just esthetical problems, butthey are toxic and hence harmful to aquatic animals. The aim of this study is to test the capacity of three types of sawdust (oak,willow and white poplar) and mixed substrates, sawdust: fly ash (FA), to remove the methyl orange (MO) and methylen blue(MB) from wastewater. The influence of contact time, solution pH and initial concentration of dyes on the blea... Autori: Anca Duta, Dora Lucaci ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25752
CORROSION INHIBITION IN SALINE ENVIRONMENT USING KETONIC MANNICH BASE FROM ortho-HYDROXYACETOPHENONE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The paper presents the results obtained when using one ketonic Mannich base BM (1-(2’-hydroxyphenyl)-3-(1-piperidinylamino)propan-1-one hydrochloride) as corrosion inhibitor in saline environment, for different types of carbon steels,with various alloying elements. The Mannich base was synthesized and used in corrosion experiments, in concentrations varyingfrom 0….1300 ppm. The corrosion experiments were performed by potentiodynamic polarization studies, with 50 mVs-1 scanrate. The ... Autori: Andreea Milea, Cristina Bogatu, Ileana Manciulea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25754
SHAFTS DESIGN OF A GEAR BASED AZIMUTHAL TRACKED PHOTOVOLTAIC PLATFORM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:It is of major importance that the mechanical structures and components of a photovoltaic (PV) system to have the same durabilityas the PV modules. The embodiment design process of the mechanical structure becomes significant as the results provide anoverall view of the PV system durability. The performance of the mechanical system must be attained based on functional andoperational requirements of the PV system. Therefore, the modelling and theoretical analysis of the mechanical behavi... Autori: Bianca Butuc, Gheorghe Moldovean, Radu Velicu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25757
HYDROTHERMAL SYNTHESIZED TiO2 BASED NANOPOWDERS FOR PHOTOCATALYTIC APPLICATIONS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:Hydrothermal synthesis was used to obtain nanostructured TiO2 based nanopowders. There were prepared pure and ZrO2 dopedcompositions consisting mainly of anatase phase with crystallite size up to 20 nm. The agglomerates of the as-synthesizedmaterials had dimensions ranging from a few hundreds nanometers to 200 microns. The investigations concerning the thermalbehavior revealed the presence of an exothermal effect at around 550oC which could indicate a possible phase transformation ofana... Autori: Adrian Mihail Motoc, Anca Duta, Oana Raita, Radu Adrian Carcel, Radu Robert Piticescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25758
LIFELONG LEARNING OF HUMAN RESOURCES FOR SUSTAINABLE DEVELOPMENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The aim of this paper is to present an assessment of the importance of mobility in the context of lifelong learning in the field offuture human resources - students, in particular - in order to contribute to sustainable development. Developing, adapting andbroadening the range of skills of individuals to create and fill the jobs of the future are the most important contemporary Europeanaim. The process of improving workforce skills involves a mutual gain for both employers and companies... Autori: Crina Radulescu, Madlena Nen, Radu Stoika ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25759
THERMODYNAMIC PERFORMANCE FOR THE SOLAR COLLECTOR OF A MICRO-COMBINED COOLING, HEATING AND POWER SYSTEM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The paper presents a computer modelling and experimental validation for the thermodynamic performance of parabolic troughsolar collectors (PTSC) used in a micro-combined cooling,e heating and power (mCCHP) system. The thermal efficiency, fluidoutlet temperature, heat gain and heat and optical losses of the collector are calculated depending on the collector geometry,optical properties, fluid properties, fluid inlet temperature and flow rate, solar insolation, wind speed and ambient temp... Autori: Ion V. Ion, Lizica Simona Paraschiv, Spiru Paraschiv ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25760
HYDROPOWER DEVELOPMENT - COMPLEXITY AND RISKS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:Hydropower exploitation has become a multifaceted task due to continuously increasing interest in all parts of the world but alsodue to inhomogeneity of framework conditions in the social, the political, the regulatory and the economic view. The final successof a plant is not only ensured by a good technical concept or design but additionally by a suitably model of financing, by selectingthe most reliable partners, by evaluating the environmental restrictions or the political stability ... Autori: Bernhard Pelikan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25761
PARAMETERS EFFECT ON THE PRODUCT DISTRIBUTION IN THE BIOMASS TO FISCHER-TROPSCH FUELS PROCESS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The increasing of energy consumption and fossil fuel emissions (especially CO2, SO2 and NOx) and the limitation of crude oilreserves, determined a growing trend toward renewable energy technologies, like solar, wind, geo-thermal energy and biomass forbiofuels.From all the renewable energies sources, biomass attracts more and more interest being a renewable resource with economicpotential, which can be found all over the world, with positive environmental properties due to neutral emissi... Autori: Anca Sauciuc, Angela Potetz, Georg Schlaub, Gerald Weber, Hermann Hofbauer, Lucia Dumitrescu, Reinhard Rauch, Ziad Abosteif ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25762
THERMODYNAMIC DESIGN AND OPTIMIZATION OF A SOLAR-DISH POWERED STIRLING ENGINE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:A thermodynamic model for accurately predicting the overall efficiency and power output of a solar assembly using a Stirlingengine is presented. It is based on the application of the First Law of Thermodynamics for Processes with Finite Speed and usesthe Direct Method. The proposed model could also be used to better design receivers that concentrate the solar radiation and toproperly size the receiver cavity for a dish solar concentrator. Examples of the optimization of the performance ... Autori: Alexandru Dobrovicescu, Camelia Stanciu, Dorin Stanciu, Georgiana Tirca-Dragomirescu, Monica Costea, Stoian Petrescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25763
EXERGY ANALYSIS OF A SOLAR STIRLING ENGINE ASSEMBLY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:A thermodynamic model for studying the overall efficiency and power output of a solar assembly using a Stirling engine ispresented. It is based on the application of the energy and exergy balance equations to the system components. The results of theproposed model are generated as a function of solar incident radiation whose analytical estimation is presented. The numericalapplication is set for a solar assembly operating in Bucharest, composed by a parabolic dish mirror, a plane receiv... Autori: Adina Gheorghian, Alexandru Dobrovicescu, Camelia Stanciu, Dorin Stanciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25764
MONITORING OF A PERFORMANCE-ORIENTED POLICY MODEL FOR RETROFITTING ?PANEL BUILDINGS?
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The state support programs on retrofitting buildings built with prefabricated technology has a decade-long history in Hungary.The launch of the Green Investment Scheme (GIS) in 2009 has introduced a new path: the performance-oriented approach. Thenew model is designed for implementing more complex renovations on a deeper level. The system is in accordance with theEPBD (EPBD, 2002) and exact savings must be quantified for all projects. The present paper outlines the past and the present ... Autori: Attila Talamon, Tams Csoknyai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25765
DESIGN AND SIMULATION OF A PHOTOVOLTAIC STRING WITH TRACKING MECHANISM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The paper presents a method to improve the efficiency of a photovoltaic (PV) string by employing a mono-axis trackingmechanism. The tracking system was optimized so that it has minimum energy consumption during tracking. The PV stringsimultaneously changes the daily position using a linear actuator which transmits the motion to all modules by a rack-pinion gearmechanism. The system is designed in virtual prototyping concept with the following software solutions: for the solid modeling -... Autori: Cătălin Alexandru, Nicoleta-Irina Tatu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25766
CALCULATION SCHEME OF A THERMODYNAMICAL TIME DEPENDENT MODEL OF THE HEAT REGENERATION PROCESS IN A SOLAR STIRLING ENGINE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The aim of this paper is to propose a set of thermal models for the regenerator by taking into account the time dependent heattransfer processes, and to combine them with the thermodynamic lumped description of the solar Stirling engine, accordingly torecent description.By using analytical and numerical methods, the optimum power of the engine is sought when various constrains (or not) areconsidered, particularly fixed heat transfer rate available at the source.A sensitivity analysis of... Autori: Alexandru Dobrovicescu, Andreea Marin, Catalina Dobre, Georgiana Tirca-Dragomirescu, Michel Feidt, Monica Costea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25767
THE ENERGY EFFICIENCY OF NATURAL SHADING WITH CLIMBING PLANTS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The work presents the results in investigating the thermal behaviour of passive solar elements, for expanding the existing analysisand prediction methodologies. The interest focuses on solar control through natural shading with deciduous plants. This providesa natural path for incorporating all advantages the passive behaviour, available throughout the year. The simulation of thedynamic energy performance of building elements is developed, starting with a physical modelling of the vario... Autori: Angelos D. Tzachanis ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25768
RAPID MANUFACTURING BY POLYJET TECHNOLOGY OF CUSTOMIZED TURBINES FOR RENEWABLE ENERGY GENERATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:In Romania, the small hydro power scheme (mini-, micro- and pico- hydro power) represents a potential renewable energy sourcefor electrical energy. Nevertheless, this small hydro potential must be used efficiently. The paper proposes an innovative e-methodof integrating design with manufacturing, for a small Pelton turbine. The first part presents the application of Rapid ProductDevelopment (RPD) with focus on Product Design (PD) of a new, very small customized hydropower turbine. This ... Autori: Anisor Nedelcu, Bogdan Deaky, Razvan Udroiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25769
CLEAN ENERGY RESPONSE OF PV SYSTEMS WITH AZIMUTH AND PSEUDO-EQUATORIAL TRACKING
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:The present study proposes a comparative analysis on the clean electric energy response given by two types of PV (photovoltaic)tracking systems implemented on the same location: the azimuth and the pseudo-equatorial. The analysis is done based on analgorithm applied on the two-axes and one-axis systems. The tracking is done according to various laws, obtained by combiningdaily, seasonal and annual tracking programs. The algorithm and the comparative analysis are exemplified, by numerica... Autori: Dorin Diaconescu, Maria Monica Vatasescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25770
COMPARATIVE HEAVY METALS AND DYES REMOVAL EFFICIENCY ON FLY ASH AND WOOD ASH
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:Ash is a waste that can be an efficient substrate in wastewater treatment for the immobilization of heavy metals and for dyesremoval. For an up-scalable wastewater treatment process, efficient substrates, with relatively constant behavior are needed andmodifying the adsorbent surface can be a feasible solution. Fly ash, resulted from coal burning, and wood ash are mixtures mainlycontaining metal oxides and carbon in various proportion, depending on the initial raw material.The paper pre... Autori: Maria Visa, Mihaela Nacu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25771
REDUCING THE VOLUME OF WASTE BY COMPOSTING VEGETABLE WASTE, SEWAGE SLUDGE AND SAWDUST
Environmental Engineering and Management Journal › Vol. 10 › Nr. 9 Abstract:Our research was focused on developing some new procedures to reduce the biodegradable wastes by composting. The aim of thisstudy was to obtain and asses at laboratory scale the maturity of three compost samples of different proportion of vegetable waste,beech sawdust and sewage sludge by analyzing their FT-IR spectra and C/N ratio. The composting process was monitored by testsperformed weekly on the three samples in order to investigate the physical parameters (pH and electroconductivi... Autori: Anca Sauciuc, Claudia Zaha, Ileana Manciulea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25772
LEACHING OF NONFERROUS METALS FROM OXIDIZED LOW GRADE COMPLEX CONCENTRATE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:The oxidation of low grade complex concentrates (Cu, Pb and Zn) in aqueous media (weak alkaline) oxidized nonferrous metalsconcentrates is carried out at high pressure. Leaching is the subsequent processing step in metal extraction. The paper studies theinfluence of some parameters (temperature, time, L:S ratio, excess) on the leaching efficiency of nonferrous metals from oxidizedconcentrate. The optimum parameters determined are: S/L ratio of 10/1, 25% reactive excess, leaching tempera... Autori: Cornelia Lupu, Dragoş Taloi, Liliana Gherghe, Luminita Mara, Teodor Velea, Vasile Predica ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25774
SPECTROPHOTOMETRIC PARAMETERS FOR ORGANIC MATTER CHARACTERIZATION IN RAW AND TREATED SURFACE WATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:This study aimed to assess the coagulation performance using simple aluminum sulfate (Alum) and pre-hydrolyzed polyaluminumchloride (PACl) coagulation agents by conventional global parameters, i.e., turbidity and organic matter expressed by totalorganic carbon (TOC) and chemical oxygen demand (COD), and non-conventional spectrophotometric parameters.Non-conventional spectrophotometric parameters, expressed as absorbance recorded at different wavelengths, i.e., A254, A280,A365, allowed d... Autori: Florica Manea, Georgeta Burtică, Ilie Pisoi, Smaranda Masu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25777
OPTIMIZATION OF PHOTO-CATALYTIC PROCESS BY TiO2 NANO POWDER IMMOBILIZED ON CONCRETE SURFACE FOR TREATMENT OF PHENOLIC WASTEWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:In this paper, photo-catalytic process for treatment of phenolic wastewater by TiO2 nano powder immobilized on concrete surfacein a recirculation hydraulic flow was investigated. The process affected by different operational conditions that the optimum onescould be obtained from variables interchange. Taguchi method as a proper method for design of experiments and optimizationwas used to find optimum conditions. Selected five parameters at four levels were consists of initial phenol con... Autori: Bita Ayati, Hossein Ganjidoust, Mohammad Delnavaz, Sohrab Sanjabi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25778
NUMERICAL INVESTIGATION ON CONVECTIVE HEAT TRANSFER IN HIGH TEMPERATURE SOLAR RECEIVER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abnstract:In recent years, solar receivers have been employed in several applications where high temperature fluids are involved, such aspower plants and solar thermal reactor. The possible presence of high temperature gradients could determine reduced receiverefficiency and a short life of the material. Thermal and fluid dynamic analysis of the receiver allows to highlight possible presenceof temperature gradients and to evaluate their values and the more critical zone of the material. Compress... Autori: Alina Adriana Minea, Oronzio Manca, Salvatore Tamburrino, Sergio Nardini ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25779
ECONOMIC AND CONSTRUCTION ANALYSIS OF LIGHTWEIGHT MEMBRANES IN HOUSING IN TEMPERATE CLIMATES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:Lightweight materials are more viable for use in invariably hot or cold climates than in temperate climates. However, it is possibleto use lightweight construction systems and specifically membranes even in housing buildings in temperate climate areas, if theirproperties are well explored, allowing better environmental performance and cost effectiveness than conventional solutions. In theouter skin and in dividing elements, architectural membranes can be used as thermal regulators, for ... Autori: Antnio Pedro Reis, Joo Pedro Couto, Paulo Mendona ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25781
DETERMINING THE LEVEL OF SUBSIDIES FOR ENVIRONMENTAL FRIENDLY TECHNOLOGY VEHICLES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:The present paper is concerned with the determination of the appropriate subsidy level for environmental friendly technologyvehicles. For this purpose, the economic calculation of the corresponding environmental benefit is necessary, which is realizedthrough the calculation of the negative environmental externality that could be avoided, if the examined subsidies have beenestablished. For the calculation of the latter, the EcoSenseLE tool has been applied here, using life-cycle airborne... Autori: Dimitrios A. Georgakellos ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25782
BIOREMEDIATION OF PETROLEUM SLUDGE UNDER ANAEROBIC MICROENVIRONMENT: INFLUENCE OF BIOSTIMULATION AND BIOAUGMENTATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Bioremediation is considered as one of the prominent and cost-effective cleanup technology to treat oily sludge disposals. In the present investigation anaerobic bioremediation of petroleum based oily sludge was studied in a slurry reactor by applying different experimental strategies viz., bioaugmentation, biostimulation and co-substrate addition. Total petroleum hydrocarbons (TPH) present in the oily sludge before and after degradation was extracted using soxhlet extraction procedure.... Autori: Asha Juwarkar, Kuppam Chandrasekhar, Mamilla Prathima Devi, Motakatla Venkateswar Reddy, Ponnapalli Nageswara Sarma, Srinivasula Reddy Venkata Mohan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25794
EXTENSION OF ACTIVATED SLUDGE MODEL NO 1 WITH TWO-STEP NITRIFICATION AND DENITRIFICATION PROCESSES FOR OPERATION IMPROVEMENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:The present paper presents an enhanced Activated Sludge Model No. 1 in which nitrification and denitrification are modelled astwo-step processes. The nitrification process is considered as a sequence of two steps carried out by two distinct genera ofbacteria, with nitrite as an intermediate product. For the denitrification process a parallel approach was used that considers nitrateand nitrite to be directly reduced to molecular nitrogen. The new model is compared to the original Activat... Autori: George Simion Ostace, Paul Şerban Agachi, Vasile Mircea Cristea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25786
INCREASED SECURITY OPERATION OF NUCLEAR FACILITIES BY USING REFRIGERATION SYSTEMS WITH ENVIRONMENTALLY FRIENDLY FREON
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:One of the basic conditions for the operation of nuclear installations is security operation. The complexity of the phenomena inheavy water detritiation plants, determine the use of advanced equipment for technological processes involved. Pilot Plant forTritium and Deuterium Separation developed the cryogenic technology of tritium separation from tritiated heavy water. Theprocess is based on an catalyzed isotopic exchange module, where the tritium is extracted from tritiated heavy water... Autori: Sorin Gherghinescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25787
INFLUENCE OF SOME PARAMETERS ON NITRATE REMOVAL FROM WATER BY PUROLITE A-520E RESIN
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:In this study, removal of nitrate from aqueous solutions was investigated using an anion exchange resin, Purolite A-520E. Theinfluence of several experimental parameters, such as initial solution pH, resin dosage, phase contact time, initial concentration ofnitrate ions from aqueous solution, and temperature, has been examined in batch experiments. The results of this investigationreveal that the ion exchange process is favored at the initial solution pH (around) 6.8. The resin studied ... Autori: Anca Ceica, Igor Creţescu, Ion Balasanian, Laura Bulgariu, Liliana Lazăr ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25788
BIOLOGICAL AIR TREATMENT EFFICIENCY OF A STRAW BIO-CHARGE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:Experimental research evaluated the possibilities of air treatment efficiency of a cylindrically shaped bio-charge, namely straw, toremove volatile organic compounds from the air. As determined during experiments, the air treatment efficiency of the straw biochargefor acetone removal reached 97.3%, while for butanol removal the efficiency was 86.0%. It has been determined that, withvolatile organic compound concentrations increasing biological air treatment efficiency is decreasing as h... Autori: Alvydas Zagorskis, Petras Vaitiekunas, Pranas Baltrenas, Raimondas Leopoldas Idzelis, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25790
ADSORPTION OF Pb (II) FROM AQUEOUS SOLUTION ONTO LEWATIT FO36 NANO RESIN: EQUILIBRIUM AND KINETIC STUDIES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:This investigation focused on the adsorption of Pb (II) onto Lewatit FO 36 resin from aqueous solutions. The effects of initialmetal concentration, contact time, pH of solution were factors that affected the adsorption of Pb (II). Adsorption kinetic was betterexplained by the pseudo second order type 1 kinetic model that was confirmed by the values (R2>0.986). The Langmuir,Freundlich, Temkin and BET adsorption models were used for the equilibrium studies and Freundlich isotherm bette... Autori: Alireza Asgari, Azra Setodeh, Mehdi Ahmadi, Mohamad Sedigh Mortazavi, Pari Teymouri ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25791
USE OF D2EHPA-IMPREGNATED XAD7 RESIN FOR THE REMOVAL OF Cd(II) AND Zn(II) FROM AQUEOUS SOLUTIONS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 10 Abstract:The adsorption performance of a novel support for metal ions sorption and their removal from aqueous solutions was examined.The support is a new solvent-impregnated resin (SIR) which can be considered as an alternative adsorbent material capable ofselective sorption. The adsorbent was prepared by impregnating di-(2-ethylhexyl)-phosphoric acid (D2EHPA) onto AmberliteXAD7 resin beads, by dry impregnation method. The interaction between XAD7 resin and D2EHPA was evaluated by FTIRspectrosco... Autori: Adina Negrea, Adriana Popa, Cornelia Muntean, Corneliu Davidescu, Lavinia Lupa, Mihaela Ciopec, Petru Negrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25793
POST TREATMENT OF POULTRY SLAUGHTERHOUSE WASTEWATER AND APPRAISAL OF THE ECONOMIC OUTCOME
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Recovery of residual ammonium nitrogen (NH4+-N) from dissolved air flotation (DAF) pretreated poultry slaughterhouse wastewater was studied by means of magnesium ammonium phosphate hexahydrate (MgNH4PO4.6H2O, MAP) precipitation in a lab-scale batch study. The maximum recovery values were obtained as 80.2%, 97.1% and 53.6% with the addition of MgCl2.6H2O + KH2PO4, NaH2PO4.2H2O + MgSO4.7H2O, and MgOHCO3 + 85% H3PO4 at pH 9.5, respectively. Based on the physicochemical findings, subsequent... Autori: Aylin Gunay, Idil Ozis, Ilter Turkdogan-Aydinol, Kaan Yetilmezsoy ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25797
DRINKING WATER QUALITY IN WATER-SUPPLY NETWORKS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:The paper describes some studies on the influence of water flow rates through water-supply networks on drinking water quality. Water residence time in pipelines for more than seven days in buried pipes and two days in above-ground pipes promotes the development of biochemical systems when the flow rates are low and very low having detrimental consequences on drinking water quality. These shortcomings are due to the residual chlorine decrease below the allowed technical limits (0.5 m/s) ... Autori: Adrian Carabeţ, Alina Grbaciu, Constantin Florescu, Cristian Stăniloiu, Ion Mirel, Irina Olaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25799
REMOVAL OF Cd (II) FROM AQUEOUS SOLUTION BY ADSORPTION ONTO COIR PITH, AN AGRICULTURAL SOLID WASTE: BATCH EXPERIMENTAL STUDY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Coconut coir pith, an agricultural solid waste was used for the sorption of Cd (II) from aqueous solution in batch mode. Parameters like contact time, adsorbent dosage and pH effect were studied. Langmuir and Freundlich isotherms were used to model the adsorption equilibrium data and the system followed both the isotherms. Cd (II) adsorption capacity of coir pith was found to be 18.72 mg/g. Kinetic parameters of adsorption such as the Langergren pseudo-first-order, pseudo second order r... Autori: Nagendra Badabhagni, Puthiya Veetil Nidheesh, Rajan Gandhimathi, Srikrishnaperumal Thanga Ramesh ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25800
MANAGEMENT ASPECTS OF BUILDING WITH NATURE PROJECTS IN THE CONTEXT OF EU BIRD AND HABITAT DIRECTIVES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:The implementation of the EU Bird and Habitat Directives by the ports and dredging industry caused severe project disruptions across North-West Europe in the past. The prevalence of negative experience triggered a new approach, which aims to integrate site-specific ecosystem characteristics and project objectives during the development of the initial project design. This approach is termed "Building with Nature". The authorities and practitioners hope that the new approach will improve ... Autori: Hans Bressers, Kris Lulofs, Vera Vikolainen ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25801
EFFECT OF ULTRAVIOLET RADIATIONS ON THE MICROBIOLOGICAL QUALITY OF DRINKABLE GROUNDWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:In this paper, the effect of the ultraviolet light on various pathogen microbial strains present in drinkable groundwater samples (wells) from Constanţa County, Romania (localities Moviliţa, Topraisar, M. Kogălniceanu) was analyzed. The investigations were conducted in an original UV-C irradiation prototype installation for water samples. The efficiency of this prototype in destroying the pathogen agents present in drinkable groundwater was established by monitoring the p... Autori: Bogdan Negreanu-Prjol, Elena Gorun, Remus Zăgan, Sabina Zăgan, Ticuţa Negreanu-Prjol ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25802
ANALYTICAL CONTROL OF SOIL AND GROUND WATER QUALITY ON A NORTHERN ROMANIAN LANDFILL
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:This paper evaluates the efficiency of some technical depollution actions applied on a Northern Romanian landfill of solid municipal wastes, that provides ca 128 000 inhabitants and 171 economic companies, considering a great variety of specific physicochemical quality indicators for soil (8 indicators) and ground waters (34 indicators). The environmental status of the landfill was previously studied in 2004, through periodic analytical control of ground water (4 observation drilling we... Autori: Carmen Zaharia, Daniela Suteu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25803
ELECTROCHEMICAL DECOLORIZATION TREATMENT OF NICKEL PHTHALOCYANINE REACTIVE DYE WASTEWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract: In this study, decolorization and degradation of aqueous nickel phthalocyanine reactive dye solutions was comparatively studied by electrochemical methods, such as electrocoagulation, electrooxidation and electro-Fenton processes. In the electrocoagulation process with aluminum electrodes the colored aqueous solutions containing 100 mg/L nickel phthalocyanine and 6 g/L NaCl were treated at initial pH 7.5 and applied current densities of 5, 10 and 20 mA/cm2, where fast and 100% decolori... Autori: Achilleas Christoforidis, Dimitrios Marmanis, Evgenia Valsamidou, Konstantinos Dermentzis, Konstantinos Ouzounis ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25804
IMMOBILIZATION OF CONIDIOBOLUS CORONATUS ALKALINE PROTEASE ON WASTE FUNGAL BIOMASS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Alkaline protease from Conidiobolus coronatus which is optimally active at pH 10 and 40C finds application in leather and detergent industries as well as for recovery of silver from waste photographic films. The protease was immobilized in Ca-alginate, polyacrylamide gel and alkali treated waste fungal biomass (ATWFB). ATWFB was found to be most suitable among the matrices tested. Glutaraldehyde marginally increased the binding to ATWFB. Binding of protease to ATWFB seems to be through... Autori: Ryali Seeta Laxman, Shiv Shankar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25807
KINETICS AND EQUILIBRIUM STUDIES OF REACTIVE YELLOW 125 ADSORPTION ON A NITROGEN DOPED TiO2 MODIFIED ZEOLITE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:In this study, the adsorption mechanism of a reactive azo dye, Reactive Yellow 125 (RY 125), onto a nitrogen doped TiO2 modified zeolite (Z-TiO2-N) has been examined in order to identify the affinity of the material for the investigated pollutant envisaging its degradation by heterogeneous photocatalysis. Equilibrium experiments were performed and the data obtained were fitted with different isotherm equations, i.e., Langmuir, Freundlich, and Dubinin-Radushkevich (D-R). The Freundlich i... Autori: Cornelia Ratiu, Elida Cristina Ilinoiu, Florica Manea, Laura Cocheci, Liliana Andreea Colar, Rodica Pode ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25809
WASTE CHARACTERIZATION AND WASTE MANAGEMENT PERCEPTION IN RURAL COMMUNITIES IN MEXICO: A CASE STUDY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:The insufficient waste collection service and scarcity of studies about municipal solid waste (MSW) generation in rural communities from developing countries has negatively influenced how MSW is managed by residents and authorities. This has brought about pollution and affected the quality of life of the residents from those communities. This study aims to determine the quantity and type of household waste generated, as well as to know the perception of the community on MSW management i... Autori: Carolina Armijo, Paul Taboada-Gonzlez, Quetzalli Aguilar-Virgen, Sara Ojeda-Bentez ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25810
MONITORING AND MATHEMATICAL MODELING – IMPORTANT TOOLS FOR ENVIRONMENTAL PROBLEMS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Analysis and debates of the scientific world and regional/local communities led to the conclusion that environmental problems are a global priority. European Union requested Member States the implementation of the Framework Directive specific for each environmental factor. In this context, Romania has pledged to achieve „good ecological status of water bodies? by the year 2015. The paper deals with the water quality monitoring of the Upper Olt River and the mathematical modeling of ... Autori: Gabriel-Oreste Sumbasacu, Nicolai Srbu, Virgil Petrescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25813
INVESTIGATION OF DRINKING WATER QUALITY CHANGES IN THE DISTRIBUTION NETWORK OF IASI CITY BY MEANS OF AN ON-LINE MONITORING SYSTEM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 11 Abstract:Drinking water produced in water treatment plants almost invariably fulfils the water quality requirements set, for example by the European Union Drinking Water Directive 98/83/EC (EU DWD) and national legislation. However, EU DWD requires that water quality should also meet the requirements at the consumers’ tap. The quality of drinking water changes due to the transportation through the distribution networks and the time spent in the reservoirs until the last point of consumption. W... Autori: , Ioana Gabriela Dascalescu, Maria Cohl ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25814
HOW COMPANIES INTEGRATE ENVIRONMENTAL ISSUES INTO THEIR MARKETING STRATEGIES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 An increased level of environmental awareness by consumers has caused marketing to pay special attention to the deteriorating environment. This is a consequence of markets punishing those companies that fail to consider environmental concerns in their marketing efforts. However, how environmental proactivity is integrated into marketing strategy has been scarcely analyzed in the marketing literature. The present paper aims to fill this gap in the literature by theoretically analyzing the ways in... Autori: Jos-Felipe Jimnez-Guerrero, Juan Carlos Gzquez-Abad, Juan-Antonio Mondejar-Jimenez, Mara Cordente-Rodrguez ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25815
ECO-EFFICIENCY: EFFECTS ON ECONOMIC AND FINANCIAL PERFORMANCE. EVIDENCES FROM DOW JONES SUSTAINABILITY EUROPE INDEX
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 In recent years, a new line of research, named eco-efficiency theory has become an issue of considerable interest. The most important works in relation with this topic focus on the fact that enterprises can maximize their economic benefits and minimize the impact on the environment at the same time. Therefore, the recommendation is to choose the so called strategy win-win, which allows for getting a double economic environmental benefit by means of a good management of productive resources, the ... Autori: Esteban Prez-Caldern, Jose Mondejar-Jimenez, Mara-Leticia Meseguer-Santamara, Patricia Milans-Montero ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25816
EMPIRICAL ANALYSIS OF THE INTEGRATION OF ENVIRONMENTAL PROACTIVITY INTO MANAGERIAL STRATEGY. IDENTIFICATION OF BENEFITS, DIFFICULTIES AND FACILITATORS AT THE SPANISH AUTOMOTIVE INDUSTRY
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Industrial firms around the world are focusing on environmental sustainability seeking competitive advantages. Environmental proactivity stands as a fundamental part of these actions. The objective of this work is to understand who and why, companies include the environmental proactivity as an element of the company's strategy. This research has been divided into two separate but interconnected, methodological phases. The first step applied qualitative methods to describe a generic model environ... Autori: ngel Peir-Signes, Baldomero Segura-Garca-del-Ro, Conrado Carrascosa-Lpez, Mara-del-Val Segarra-Oa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25818
THE IMPACT OF ENERGY CONSUMPTION ON THE BENEFIT FUNCTIONS OF ENTERPRISES: PROPOSAL OF AN ENERGY EFFICIENCY INDICATOR
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Abstract:Energy Efficiency is a topical concept managed by a wide variety of individuals and institutions from very different areas, bothacademic and professional. Economists, Engineers, Environmentalists, Lawyers and other specialists show, each one of them, anspecific dimension of this so relevant concept, not only for its implications on global evolution of Earth but for its impact onbenefit functions of enterprises.What this paper proposes is to shape a theoretical framework in which, firstl... Autori: Jesus Rivas, Marta Magadn ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25819
THE ENVIRONMENT AND COMPETITIVE STRATEGIES IN HOTELS IN ANDALUSIA
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 The environment is an intrinsic component of most tourism products, and in segments, such as rural and outdoor tourism, it is the reason for their existence. In recent years, tourists have been including respect for the environment as a factor in their purchasing decisions; and many businesses are using this factor as a differential component to increase their market competitiveness. However, few studies have examined the use of the environment by tourism firms as a competitive strategy and what... Autori: Alejandro Garca-Pozo, Jos-Luis Snchez-Ollero, Macarena Marchante-Lara ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25820
COMPARATIVE ANALYSIS OF THE SUSTAINABILITY OF TOURISM IN SPAIN'S REGIONS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Measuring progress of the tourism destinations in the area of sustainability has now become one of the major challenges facing policymakers action. Sustainability is a dynamic concept. In fact, in reality, it really can be measured is not ?sustainability?, but ?progress towards sustainability?, bearing in mind that this is not an ideal target linked to a fixed state of harmony, but a continuous process of adjustment and reorientation of tourism development to achieve the balance between ... Autori: Juan-Ignacio Pulido-Fernndez, Marcelino Snchez-Rivero, Yaiza Lpez-Snchez ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25821
PER CAPITA CO2 EMISSION TRENDS AMONG EUROPEAN OECD COUNTRIES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 The relationships between economic growth, environmental sustainability and energy are of great interest among researchers and policy makers. One of the theoretical conclusions that have received most attention is the convergence of the per capita carbon emission levels. But empirical results of theoretical growth models that include the environmental variable or estimated Environmental Kuznets Curve are not conclusive. This paper uses a multivariate state-space model to examine the process of c... Autori: Gema Fernndez-Avils, Jose Mondejar-Jimenez, Josep Illa, Manuel Vargas-Vargas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25823
FACTORS INFLUENCING WATER SAVING BEHAVIOUR FOR SPANISH HOUSEHOLDS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Freshwater is a fundamental natural resource. It is essential for sustaining life, supports the development of ecosystems and economies and is also used as a recreational resource. Therefore, its appropriate management is critical if we want to guarantee the long-term sustainability of the supply. The aim of this paper is to analyze the main aspects influencing water saving in Spanish households. To accomplish this goal, we start by developing a theoretical analysis of those aspects that affect ... Autori: Juan Carlos Gzquez-Abad, Juan-Antonio Mondejar-Jimenez, Manuel Vargas-Vargas ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25824
ECO-INNOVATION ATTITUDE AND INDUSTRY’S TECHNOLOGICAL LEVEL - AN IMPORTANT KEY FOR PROMOTING EFFICIENT VERTICAL POLICIES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 This paper links two theoretical constructs underpinned by sustainable values, management of sustainable development and ecoinnovation. The first one becomes a crucial process and adds competitive value and, the second, plays a pivotal role in the search for a sustainable economy and society. This research is an attempt to explore the Spanish companies´ attitude towards sustainability when innovating. Industries were categorized as to their actual technological performance status as low, medium... Autori: ngel Peir-Signes, Luis Miret-Pastor, Mara-del-Val Segarra-Oa, Rohit Verma ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25826
A STATISTICAL INFORMATION SYSTEM SUPPORTING ENVIRONMENTAL POLICIES
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Environment and sustainability are key issues for the policy maker. A policy should be first designed and realistically inserted in its proper context (regional, national, European) in order to be correctly assessed. After that, suitable models need to be chosen consistently with the policy context and with the evaluation purpose, to make easier the policy maker task. The aim of this paper is twofold. Firstly, to propose a Statistical Information System (SIS) approach in order to correctly write... Autori: Giorgio Garau, Giovanni Mandras, Lucia Schirru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25827
AGRICULTURAL DIVERSIFICATION AND THE SUSTAINABILITY OF AGRICULTURAL SYSTEMS: POSSIBILITIES FOR THE DEVELOPMENT OF AGROTOURISM
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Agrotourism, a form of tourism that falls within the framework of rural tourism, is based on the tourism taking place on farms with the possibility of doing work with the owners of the farm with this being seen as a leisure activity, educational in nature and of interest to members of many groups. The importance of this kind of tourism resides in the possibility of complementing the income generated from the farm with income produced by the tourism, as well as assuring the conservation of the en... Autori: Ana-Mara Campn-Cerro, Antonio Prez-Daz, Felipe Leco-Berrocal, Jos-Manuel Hernndez-Mogolln ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25828
PHOSPHATE REMOVAL FROM WATER AND RECOVERY USING IRON (Fe+3)OXIDE/HYDROXIDE NANOPARTICLES-BASED AGGLOMERATES SUSPENSION (AggFe) AS ADSORBENT
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 An iron(Fe+3) oxide/hydroxide nanoparticles-based agglomerates (AggFe) suspension adsorbent was synthesized for efficient, cost-effective phosphate removal. A strong effect of AggFe concentration and pH level of water containing phosphate on removal efficiency was shown. It was found that phosphate adsorption onto the AggFe suspension may be described by pseudo-secondorder reaction kinetics and the Langmuir isotherm model. The unique adsorption properties of synthesized AggFe adsorbent are demon... Autori: Grigori Zelmanov, Raphael Semiat ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25829
PREDICTIVE MODELLING OF ENVIRONMENTAL NOISE LEVELS IN LITHUANIAN URBAN AREAS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Modelling of environmental noise is a process aimed at estimating the noise levels in an area of interest under a particular set of conditions. The aim of the work is to evaluate the impact of the planned reconstruction work on the change of noise level in Panevė??ys city. The software MapNoise was used for modelling work. Strategic noise maps are updated on a regular basis and information dating back not more than three years will be used for their build. Values of emissions from each indi... Autori: Egidijus Petraitis, , Petras Vaitiekūnas, Raimondas Leopoldas Idzelis ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25830
IMPROVING THE PERFORMANCE OF A SENSOR TO MONITOR THE DYNAMICS OF THE HYDRAULIC CHARACTERISTICS OF SOIL
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Soil hydraulic characteristics are variable, being influenced by climate changes. Research conducted until now in this area has been based on field soil sampling; their laboratory analysis using experimental techniques; and the use of models and programs for data processing and interpretation. The present research is based on the idea of incorporating smart sensors on site, each one having its own network address, accessible for any location. They can be programmed to send an alarm signal when t... Autori: Constantin Victor Stătescu, Dorin Cotiusca Zauca, Florian Stătescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25831
HSLA STEEL AND CAST IRON CORROSION IN NATURAL SEAWATER
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 The corrosion products of high strength low-alloyed steel and of cast iron, maintained a prolonged period in natural seawater, were analyzed. A part of the corrosion products are soluble compounds of divalent and trivalent iron, the iron dissolution being accelerated when divalent ions are formed and in the case of the aerated seawater. The solid corrosion product formed during corrosion in seawater is principally oxy-hydroxide (FeOOH), but were identified small quantities of Fe2O3, Fe3O4 and so... Autori: Daniel Mareci, Maria Lungu, Nicanor Cimpoeşu, Nicolae Aelenei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25832
COMBINED OXIDATION AND ULTRAFILTRATION PROCESSES FOR THE REMOVAL OF PRIORITY ORGANIC POLLUTANTS FROM WASTEWATERS
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 This paper presents a study on the integration of two advanced treatment processes for the removal of priority organic processes from wastewaters: catalytic oxidation (Fenton homogenous process) followed by ultrafiltration. The aim of this study was to assess the removal efficiency for 4-chlorophenol (used as model pollutant), as well as the decrease in effluent toxicity in various processes conditions. The experiments have mainly focused on studying the effect of the oxidant dose of the catalyt... Autori: , Cezar Catrinescu, Corina Petronela Musteret, Daniela Arsene, George Barjoveanu, Petru Apopei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25834
ENSURING ECONOMICAL AND FINANCIAL SUSTAINABILITY: STATE FISCAL CONTROL - A WAY TO PREVENT AND REDUCE TAX AVOIDANCE
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Human nature constantly tends to place personal interest first, to the detriment of general interest. In this respect, tax and duty payers have always attempted to evade payments on their tax liabilities, resorting to various tactics, as they view such compulsory payments as detrimental to their wealth and income. On the other hand, the state seeks to maximise its receipts from taxes, duties, excises etc. In Romania, after 1990, an entire range of anti-tax reactions occurred in the sphere of pub... Autori: Carmen Sandu, , Marius Vorniceanu, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25835
SUSTAINABILITY IN ENVIRONMENTAL REMEDIATION
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 Abstract:The concept of sustainable development has become an important objective for policy makers, since the key principle ofsustainable development understands the interdependence between economy, environment and society concerns.The objective of this study is to analyze the supports for sustainable environmental remediation, considering sustainabilityindicators and sustainable remediation practices, based on both methods that are known for a long time as well as emergentprocesses and technol... Autori: Isabela Maria Simion, Maria Emiliana Fortuna, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25837
Environmental Engineering and Management Journal 10/12
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 ? SUSTAINABILITY IN ENVIRONMENTAL REMEDIATION
? EVALUATING THE CLIMATIC CHANGES IN THE HYDROLOGICAL FLOW REGIME OF THE MOLDAVIAN AREAS
? ENSURING ECONOMICAL AND FINANCIAL SUSTAINABILITY: STATE FISCAL CONTROL - A WAY TO PREVENT AND REDUCE TAX AVOIDANCE
? COMBINED OXIDATION AND ULTRAFILTRATION PROCESSES FOR THE REMOVAL OF PRIORITY ORGANIC POLLUTANTS FROM WASTEWATERS
? THE FREE LEVEL UNIFORM POST-DARCY FILTRATION THROUGH A SPHERE-MADE HOMOGENOUS MEDIUM
? HSLA ST... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25838
ABIOTIC FILTERING OF BENTHIC INVERTEBRATE GUILDS IN THE MARGHERITA DI SAVOIA SALT PAN, ITALY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 4 The structure of biological communities is a result of the combined action of an environmental selection, determined by the physico-chemical characteristics of an ecosystem. This process results in the selection of the species depending on their tolerances (abiotic filter) and their ability to cope with the interactions among species (biotic filter). In this work, the importance of abiotic filters on the structure of benthic macro-invertebrate guilds was evaluated in a hyperalyne transitional wa... Autori: Alberto Basset, Aurelia Caldararu, Catalina Iticescu, Enrico Barbone, Ilaria Rosati, Lucian P. Georgescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25939
ACTIVATED SLUDGE FLOC CHARACTERIZATION BY CONFOCAL LASER SCANNING MICROSCOPY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 3 The aim of this work is the study of activated sludge floc samples stained with different dyes and imaged by Confocal Laser Scanning Microscopy (CLSM). Activated sludge flocs were stained for lipids, sugars and esterase enzyme producing bacteria. Images were acquired for different samples to analyze the structural characteristics of the bioaggregates. The analysis of the CLSM images allowed for the localization and estimation of the quantity of different build-up materials. The 3-D reconstructio... Autori: Bela Abraham, Botond Raduly, Dan Niculae Robescu, Szabolcs Lanyi, Szabolcs Szilveszter, Szilard Bucs ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25937
DIRECT SEPARATION OF PROPIONIC ACID FROM Propionibacterium acidipropionici BROTHS BY REACTIVE EXTRACTION 1. INTERFACIAL MECHANISM AND INFLUENCING FACTORS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 4 The reactive extractions of propionic acid with TOA dissolved in three solvents with different dielectric constants (dichloromethane, butyl acetate, n-heptane) without and with 1-octanol as phase modifier have been comparatively analyzed. The results indicated that the mechanism of the interfacial reaction between acid and extractant is controlled by the organic phase polarity. In absence of 1-octanol, the structures of the extracted complexes are RCOOH.Q2 for dichloromethane and butyl acetate, ... Autori: Alexandra Crlescu, Anca-Irina Galaction, Dan Caşcaval, Mădălina Poştaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25938
POLYCYCLIC AROMATIC HYDROCARBONS IN WASTEWATER SEWERAGE SYSTEM FROM THE CLUJ-NAPOCA AREA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Polycyclic aromatic hydrocarbons (PAHs) are by-products of petrol transformation; a report prepared by ICON, London, United Kingdom in 2001, showed that the principal sources of polycyclic aromatic hydrocarbons in wastewater are domestic usage, storm runoff and commercial effluent. This work presents the results on 14 commonly occurring and/or highly carcinogenic PAH compounds listed as priority pollutants by the United States Environmental Protection Agency and the European Union. Wastewater sa... Autori: Dumitru Ristoiu, Edward Muntean, Livia Alhafez, Nicoleta Muntean, Radu Mihaiescu, Tania Mihaiescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25847
ECO-EFFICIENCY: EFFECTS ON ECONOMIC AND FINANCIAL PERFORMANCE. EVIDENCES FROM DOW JONES SUSTAINABILITY EUROPE INDEX
Environmental Engineering and Management Journal › Vol. 10 › Nr. 12 In recent years, a new line of research, named eco-efficiency theory has become an issue of considerable interest. The most important works in relation with this topic focus on the fact that enterprises can maximize their economic benefits and minimize the impact on the environment at the same time. Therefore, the recommendation is to choose the so called strategy win-win, which allows for getting a double economic environmental benefit by means of a good management of productive resources, the ... Autori: Esteban Prez-Caldern, Jose Mondejar-Jimenez, Mara-Leticia Meseguer-Santamara, Patricia Milans-Montero ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25845
EQUILIBRIUM AND KINETICS STUDY OF NITRATE REMOVAL FROM WATER BY PUROLITE A520-E RESIN
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Equilibrium and kinetics of nitrate removal from aqueous solutions of pH = 6.8 were investigated using the strong base anion exchange resin (Purolite A-520E) in the batch method. The experimental equilibrium data were analyzed by means of the Langmuir, Freundlich and Dubinin-Radushkevich sorption isotherm models. The Langmuir model describes sorption isotherm of nitrates with high correlation coefficients and better than Dubinin-Radushkevich and Freundlich models. The effect of temperature on th... Autori: Anca Ceica, Igor Creţescu, Ion Balasanian, Laura Bulgariu, Liliana Lazăr ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25851
PHOTOCATALYTIC ACTIVITY OF A SILVER DOPED TIO2 MODIFIED ZEOLITE IN THE DEGRADATION OF REACTIVE YELLOW 125 AZO DYE
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The aim of this study was to investigate photocatalytic activity of a silver doped TiO2 modified zeolite (Z-TiO2-Ag) in the photocatalytic degradation of Reactive Yellow 125 (RY 125) azo dye. The operational conditions using photocatalyst dose of 1g·L-1 at pH 6 were established as optimal conditions for photocatalysis application in RY 125 dye solution degradation. The photocatalyst exhibited a good performance for discoloration at all studied concentrations (25, 50 and 100 mgL-1). A go... Autori: Carmen Lazau, Elida Cristina Ilinoiu, Florica Manea, Liliana Andreea Colar, Rodica Pode ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25854
FOOD CHAIN BIOMAGNIFICATION OF HEAVY METALS IN SAMPLES FROM THE LOWER PRUT FLOODPLAIN NATURAL PARK
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Pollutants transfer via the food chain was investigated in a wetland ecosystem from the Lower Prut Floodplain Natural Park in Romania. Trace elements (Cd, Cu, Pb and Zn) were determined by Inductively Coupled Plasma – Optical Emission Spectrometry (ICP-OES) from samples belonging to primary producers and primary and secondary consumers, and also from water and sediments samples. Non-essential trace elements as Cd and Pb exhibited low concentrations in molluscs and fish, but zinc had shown conc... Autori: Alin Tudorache, Gabriel Chisamera, Gabriel Lucian Radu, Iulia Gabriela David, Laurentiu Rozylowicz, Marius Lucian Matache ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25855
LIGNOCELLULOSIC BIOREFINERY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Biomass is a very interesting natural source to obtain renewable energy as well as chemical products based on a renewable feedstock. Fuel produced from renewable resources is widely regarded as an option to substitute traditional fossil fuels and thus to answer to the adjunct climate debate. For the production of chemical substances from renewable substrates many process options are in investigation worldwide at the moment. However the ecological benefits of these technological options have to b... Autori: Anton Friedl ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25856
THE IMPACT OF ORGANIC AND MINERAL FERTILIZERS ON THE YIELD AND MINERALS CONTENTS OF Fabaceae FROM PERMANENT GRASSLAND
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 This paper presents original studies about the influence of mineral and/or organic fertilization on the minerals contents (P, Na, K, Ca, Mg, Fe, Mn, Zn, Cu, Ni and Pb) in leguminous plants from permanent grassland situated in a hill area of Banat County. Determination of minerals in grassland is very important both for the nutritional or toxic effects of these elements and their compounds, in the plants, animals and environment. Phosphorous was analyzed colorimetric and all the others metals hav... Autori: Alexandru Moisuc, Iosif Gergen, Monica Harmanescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25858
INFRASOUND IMPACT ON THE AQUATIC ECOSYSTEMS AND LIFE QUALITY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Infrasound is a sound wave with a range of frequencies below that of human hearing and is a constituent of the environment in which we live. Taking into consideration that infrasound is below the audible range and that its overall effects on the entire human organism are yet unknown, the ambiguity of the phenomenon requires further research. Although infrasound has been analyzed in depth in the past few decades and assumptions have been made regarding experiments on human subjects (with or witho... Autori: Carmen Cătălina Ioan, Cornelia Ursu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25859
ASSESSING ENVIRONMENTAL IMPACT OF PACKAGING PAPER PRODUCTION BASED ON RECYCLED FIBRE RAW MATERIAL
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 This paper is part of LCA studies performed in the frame of FP7 project ?Recovered Paper Sorting by Innovative Technologies - SORT IT?. It analysis the results obtained by Life Cycle Impact Assessment (LCIA) of the reference case for recycled packaging paper manufacturing (current sorting technology), which will constitute a comparison base for new sorting technology developed in SORT IT project. The main stages considered in the life cycle were: recovered paper (RP) transport from collectio... Autori: Alina Iosip, Antonio Dobon, Elena Bobu, Mercedes Hortal ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25860
EFFECTS OF THE ENVIRONMENTAL STRESS ON TWO FISH POPULATIONS REVEALED BY STATISTICAL AND SPECTRAL ANALYSIS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The aquatic species are permanently subjected to various stresses through the ecosystem and the food habit. Elucidating the impact at the cellular level allows us to understand the ways in which the polluting elements and their derivatives can disrupt the metabolism of aquatic organisms triggering apoptosis in individual cells or necrosis affecting groups of neighbouring cells. The aim of this preliminary study is to highlight the influence of the environmental factors on two fish population by ... Autori: , Camelia Ureche, Dorel Ureche, Gabriel Lazar, Ileana Denisa Nistor, Irina Loredana Ifrim, Iuliana Mihaela Lazar, Marius Stamate, Valentin Nedeff ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25861
FILTERING MEDIA FUNCTIONALIZED WITH MONOCHLOROTRIAZINYL-β-CYCLODEXTRIN
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The present study describes the preparation of a filtering medium from a polymeric cellulosic support (filter paper) by functionalization with monochlorotriazinyl-β-cyclodextrin. The permanent immobilization of cyclodextrins confers the new material special properties and the potential for a better decontamination of liquid and gaseous effluents. The structure, physicomechanical and filtration properties of the filter paper, successfully functionalized with MCT-β-CD, have been emphasiz... Autori: Ana-Maria Grigoriu, Constantin Luca, Florin Ciolacu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25862
LEVELS OF METALS AND ORGANOCHLORINE COMPOUNDS IN SEAFOOD CONSUMED IN CLUJ-NAPOCA, ROMANIA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Marine species (n=36) available in a supermarket of Cluj-Napoca city, Romania were collected and analyzed for the levels of heavy metals (Cr, Cu, Zn, Cd, Pb, Hg) and As, polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCPs), such as dichlorodiphenyltrichloroethane (DDT) and analogous, hexachlorocyclohexanes (HCHs) and hexachlorobenzene (HCB). The collection included samples from twelve fish groups (sardine, tuna, herring, pangasius, marbled rockcod, hake, shrimp, pink shrimp, lo... Autori: Adriana Gog, Claudiu Tanaselia, Ioan Ştefan Groza, Marin Senila, Mirela Miclean, Oana Cadar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25863
EVALUATION OF DIFFERENT CONTROL STRATEGIES OF THE WASTE WATER TREATMENT PLANT BASED ON A MODIFIED ACTIVATED SLUDGE MODEL NO. 3
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The first part of this work presents the development and implementation in the Benchmark Simulation Model No 1 (BSM1) of a modified Activated Sludge Model No 3 (ASM3). The enhanced ASM3 presented in this study has three modifications compared to the original ASM3. The first modification is the representation of the simultaneous heterotrophic biomass growth on the primary substrate and on the internal storage products. Second, nitrification is modeled as a two-step process with nitrite as an inte... Autori: George Simion Ostace, Paul Şerban Agachi, Vasile Mircea Cristea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25865
EVALUATION OF ATMOSPHERIC POLLUTION BY USING NATURAL LOW-COST SORBENTS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 In this study, we have tested the possibility of utilization of three types of natural low-cost sorbents: (Sphagnum moss peat, natural moss peat and alkaline treated moss peat) for the active biomonitoring of air quality from Căliman National Park area (Dorna Basin), during of two months (September – October 2010). The concentrations of some heavy metals (Pb, Cd, Cu, Mn and Fe) in the sorbent samples were used as an indicator of the level of air pollution in the studied region. After expo... Autori: Iulian-Ovidiu Sandu, Laura Bulgariu, Matei Macoveanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25868
REMOVAL OF Cd(II) IONS FROM AQUEOUS SOLUTION BY RETENTION ON PINE BARK
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 Among the different types of waste products tested, the bark of different Pinus species have been identified as a promising class of low- cost sorbents for heavy metal binding. In this context, the potential of Romanian pine bark wastes as green and economical sorbent for cadmium (II) ions removal from aqueous solutions has been tested in batch conditions as function of initial pH, contact time, sorbent dose, metal ion concentration and temperature. The equilibrium data at three different temper... Autori: Anca Miron, Brindusa Robu, Carmen Paduraru, Lavinia Tofan, Roxana Laura Mihailescu Amalinei ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25871
CARBON NANOTUBES COMPOSITE FOR ENVIRONMENTALLY FRIENDLY SENSING
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The performances of two types of multi-walled carbon nanotubes-based composite electrodes, i.e., MWCNT-Epoxy (CNTEpoxy) and Natural Zeolite-modified- MWCNT- Epoxy (NZ-CNT-Epoxy) are described in order to use them for electroanalytical application. Both electrodes were synthesized, electrically and electrochemically characterized and tested for the detection of ascorbic acid (AA) in aqueous solutions. The electrochemical characterization using classical potassium ferricyanide method showed a high... Autori: Adriana Remes, Anamaria Baciu, Elida Ilinoiu, Florica Manea, Joop Schoonman, Stephen J. Picken ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25877
INDOOR AIR QUALITY IN EDUCATIONAL INSTITUTIONS IN ESTONIA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 The indoor climate of educational institutions (kindergartens, secondary schools and universities) in Estonia is investigated. The main hazards for students’ health are: the high concentration (over 800 ppm) of carbon dioxide in the classrooms that refers to the inappropriate ventilation; the non-ergonomic computer workplaces where the direction of the natural light (without blinds for the windows) is causing glare on the monitors; the low humidity of the air in winter; the low air temperature... Autori: Ada Traumann, Piia Tint, Viiu Tuulik ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25873
Letter to Editor
Environmental Engineering and Management Journal › Vol. 11 › Nr. 1 This manuscript pointed out an error on pseudo-second-order rate equation. The mistake in the model was duplicated in number of papers in recent years. This type of error could be avoided if authors have had paid more attentions to details about the model from the original paper. In addition, it may leads to trouble for the reader to locate the original articles. It is very provoking and time-consuming to search for a reference when the information is not correct. This comment offered informatio... Autori: Yuh-Shan Ho ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25876
HOMOGENEOUS AREAS DELIMITATION BY CONSIDERING THE ENERGY DEMAND FOR PLANTS GROWING IN COVERED SPACES
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 This paper presents an experimental study on the energy requirement for greenhouse heating. The evaluation of necessary energy for crop plants was made by systematic measurements of the thermal behavior for three non heated tunnel greenhouses, covered with polyethylene. From the comparative analysis of the measured temperatures inside and outside the tunnel, it was established the relationship for estimating the inside greenhouse average temperature (tmi), lower than the minimum temperature nece... Autori: Maria Harja, Roxana Dana Bucur ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25879
INTEGRATED ULTRASONICATION-ULTRAFILTRATION PROCESS FOR THE TREATMENT OF TEXTILE EFFLUENTS: ASSESSMENT OF OPERATIONAL PARAMETERS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Nowadays, advanced wastewater treatment has become a stringent step for the removal of priority organic pollutants and many technologies have been proposed in order to achieve effluents with a superior quality for recycling or reuse purposes. This research is focused on the possibilities of using an integrated process, comprising 2 stages: the advanced oxidation process of ultrasonication and a membrane separation process, ultrafiltration. The main objective of the study is to assess the efficie... Autori: , Daniela Cailean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25880
IMPROVING SOIL QUALITY BY ADDING MODIFIED ASH
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Fly ash and fly ash based zeolites are inorganics used for improving soil quality. In the current paper, the hydrothermal modification of fly ash was studied. Three methods have been employed for this purpose. The first method involved the use of an autoclave, where synthesis has been performed at a temperature of 120 0C and a treatment time of 4 to 8 hours. Within the second method, the modification of the ash at a temperature of 600 0C by fusion was carried-out. In this method, a mixture of as... Autori: Corneliu Munteanu, Daniel Bucur, Lacramioara Rusu, Maria Harja, Marinela Barbuta, Ramona Carla Ciocinta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25885
NEW TECHNIQUE FOR SPEEDING UP THE WASTEWATER TREATMENT SIMULATIONS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The Landra Wastewater Treatment Expert System is developed by the University of Pannonia (Hungary, Veszpr?m). The flexible, simulation-based software provides the possibility to choose the built-in mathematical models or the user may create a new one arbitrarily. A customized program codes can be created according to the technological description, the input data and the control strategy provided by the user. This way the efficiency and reliability of the system is significantly enhanced. An imp... Autori: , Endre Domokos, Tatiana Yuzhakova, Viola Somogyi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25888
EUTROPHICATION MODELLING OF GOLESTI RESERVOIR IN ROMANIA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Global existence of a large percentage of lakes with eutrophication problems (54% in Romania) demands a predictive tool for the quality of these ecosystems. In this context, this paper proposes an eutrophication model that describes the thermal and biochemical behaviour of an eutrophic reservoir. This model was used to study an artificial lake (Goleşti reservoir) located in Romania. The conceptual model concerns a lake, which is considered as a closed aquatic system, and analyze a simply fo... Autori: Gabriela Elena Dumitran, Iulia Rodica Damian, Liana Ioana Vuta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25890
ANALYSIS AND MANAGEMENT OF SPECIFIC PROCESSES FROM ENVIRONMENTAL ENGINEERING AND PROTECTION BASED ON SUSTAINABILITY INDICATORS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 This paper describes the scientific framework established within doctoral and postdoctoral programs designed to contribute to a thorough understanding of the specific processes involved in environmental engineering and protection, as to improve the environmental management and performance in an efficient and sustainable way. A coherent conceptual framework is developed for the analysis and management of some specific approaches in engineering and environmental protection (pollution phenomena, de... Autori: Cristina Ghinea, Daniela Tudorache Fertu, Isabela Maria Simion, Laura Carmen Apostol, Mădălina Petraru, Maria Emiliana Fortuna, Maria Gavrilescu, Petronela Cozma, Raluca Maria Hlihor ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25891
MUNICIPAL SOLID WASTE MANAGEMENT FOR SUSTAINABLE DEVELOPMENT OF BUCHAREST METROPOLITAN AREA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The concept of collaborative management is considered to be one of the most efficient instruments for sustainable development of some areas, which are under anthropic pressure due to the production of solid waste. The paper stands for the necessity of promoting a collaborative management among the main actors involved in an efficient and sustainable urban solid waste management, in the metropolitan area of Bucharest. The present management is mainly based on the strictly economic vision of manag... Autori: Andrei Schvab, Daniela Zamfir, Gabriel Pascariu, Ioan Ianoş, Loreta Cercleux, Valentina Stoica ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25893
AIR QUALITY MANAGEMENT IN IASI CITY
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 According to the Romanian Law no. 265/2006, which adopted the Governmental Decision no. 195/2005 on environmental protection, environmental agencies are responsible for air quality monitoring in Romania. Since Romania is now an EU Member State, such a plan is a must to enhance life quality, in order to meet the objectives of the National Strategy for Sustainable Development. Having regarded to this Strategy and the Kyoto Protocol signed in 1997, this paper provides the results from a study of am... Autori: Corina AnaMaria Ioan, Florin Luca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25895
ENVIRONMENTAL PERFORMANCE – PART OF MANAGEMENT PERFORMANCE
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The approached subject presents some features of a methodology for original research, considering the environmental performance as a component of the organizations management performance quantification, by considering the environmental management approach as an integrated environmental informational and decisional concept. The current trend in the assessment of performance management is the integration of the environmental management in the organizations management in a conscious and regulated w... Autori: Mihaela Luminita Lupu, Nicolae Trofin, Orest Trofin ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25897
HEAVY METALS IN THE SOILS OF RODNA MINING AREA, ROMANIA AND ZEOLITE EFFICIENCY FOR REMEDIATION
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The present study was carried out to highlight the areas where heavy metal content in the soils from Rodna mining perimeter exceeds normal limits and to attempt to reduce the concentration of free heavy metal ions by using natural zeolite from the Dej tuff. In order to emphasize the heavy metal content and their accumulation in soil in Rodna region, 35 soil samples were collected from the upper and deeper layer (about 0-10 and 10-20 cm depth) and analyzed to determine total and free Cu, Pb and Z... Autori: Ramona Nimirciag ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25900
COMPARATIVE STUDIES ON THE EFFICIENCY OF ALUMINIUM COAGULANTS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 An alternative preparation method for PAC (pre-hydrolyzed aluminium chloride with general formula Alm(OH)nCl3n-m) by electrochemical synthesis is presented in this paper. The electrochemically obtained PAC (E-PAC), in which the most effective species of the polymeric Al component were estimated by 27Al RMN method, with properties similar to the properties of a commercially available PAC solution, was successfully generated in a electrochemical reactor. For obtaining as much as Al13 polymer by el... Autori: Adina Pacala, Ciprian Radovan, Ilie Vlaicu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25901
STUDIES ON THE BIOLOGICAL TREATMENT OF INDUSTRIAL WASTEWATER STREAMS
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Two experimental periods have been undertaken to investigate the biodegradability of sewage streams (mainly regarding the organic substances) produced by a gas cartridge production, filling and distribution company. A sequencing batch reactor (SBR) was used for the laboratory examinations launched with municipal sewage sludge with a concentration of approx. 3 g MLSS/L. The various conditions in the reactors followed each other cyclically (fill, anoxic, aerobic, settle, draw) three times a day. T... Autori: Bence Fazekas, Karoly Reich, Krisztian Varga, Viktoria Pitas, Viola Somogyi, Zsuzsanna Banyai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25902
ASSESSMENT OF TOURISM DEVELOPMENT IN ROMANIA: ENVIRONMENTAL ISSUES AND CHALLENGES IN NORTH OF MOLDOVA
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 Tourism is one of the essential components of population services and a major influence factor for economic and social development. The tourism industry is characterized by a great structural complexity, in multiple forms of this service.This industry can also have an impact on the natural resources and environment in the various tourist destinations, on everyday life of these locations and also on the individuals from those areas, whether rural or urban. Nowadays, tourism faces different challe... Autori: , Elena Elisabeta Pomeanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25903
OCPS AND PAHS DISTRIBUTION IN DIFFERENT STAGES OF TOMATO GROWING
Environmental Engineering and Management Journal › Vol. 11 › Nr. 2 The presence of pollutants in food raises some serious questions concerning their potential impact on consumers health, being necessary to monitor their distribution in the environment. The present work provides data regarding levels of organochlorine pesticides (lindane, p,p’- DDT, p,p’- DDE, p,p’- DDD, HCB, aldrin, dieldrin, endrin and hepthaclor) and PAHs: acenaphthene (Ace), acenaphthylene (Acy), fluorene (F), naphthalene (Np), anthracene (An), fluoranthene (Fl), phenanthrene (Ph), ben... Autori: Alina Soceanu, Danut Tiberius Epure, Gabriela Stanciu, Simona Dobrinas, Viorica Popescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25905
EFFECTS OF Fe(III) ON DISSIMILATORY FERRIC REDUCTION, NITROGEN AND PHOSPHORUS REMOVAL IN ACTIVATED SLUDGE PROCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 Abstract An activated sludge from SBBR (sequencing biofilm batch reactor) reactor filled with Fe0 as filler had been acclimated to Fe(III)rich environment aiming at secure an enrichment culture of iron-reducing bacteria. The dissimilatory Fe(III) reduction ability and its efficiency on the effect of nitrogen and phosphorous removal by dosing different Fe(III) under anaerobic condition were investigated. The mechanism was also proposed based on the results derived from the experiment a... Autori: Jie Li, Juanjuan Feng, Siyuan Zhai, Yae Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25943
WHOLE CELL BIOREPORTER FOR THE ESTIMATION OF OIL CONTAMINATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 Abstract Oil contamination has been one of the most common environmental pollution due to its threat to both human health andecosystems. It is difficult for the application of conventional chemical analysis to detect oil contamination in-situ, estimatebioavailability and rapidly assess the environmental risk. In this study, two bioreporters were employed for the rapid and directdetection of oil content and genotoxicity in a cutting oil contaminated site in China. Acinetobacter baylyi ADPWH_... Autori: Bo Jiang, Chuan Li, Dayi Zhang, Guanghe Li, Wei E. Huang, Yizhi Song ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25944
CONTROL MODE OF RURAL NONPOINT SOURCE POLLUTION IN TAI LAKE BASIN, CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractEutrophication in Tai Lake Basin is becoming severe in recent years. Although extensive efforts have been made, seeking analternative cost-effective approach to control water pollution in the area is still an urgent priority. In this paper, the reasons led tothe poor control of rural nonpoint source pollution in Tai Lake Basin area were discussed. Thereafter, the paper proposed theways and means to reduce rural nonpoint source pollutants by a case study in Fenshui village along Caoqiao R... Autori: Chuang Zhou, Houhu Zhang, Jingcheng Duan, Yang Yang, Yimin Zhang, Yuexiang Gao ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25945
ENHANCED NITROGEN REMOVAL FROM REJECT WATER OF MUNICIPAL WASTEWATER TREATMENT PLANTS USING A NOVEL EXCESS ACTIVATED SLUDGE (EAS) BASED NITRIFICATION AND DENITRIFICATION PROCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractIn this study, a novel excess activated sludge (EAS) based nitrification and denitrification process was developed using EAS toprovide nitrifiers and denitrifers for nitrogen removal from the reject water of a municipal wastewater treatment plant (MWWTP).This can achieve a significant reduction in the nitrogen (N) loading in wastewater treatment plants. The results show that theammoniacal-nitrogen (NH4+-N) and total nitrogen (TN) removal efficiencies were in the range from 74.7% to 93.1%... Autori: Wei Li, Xiaoxia Yang, Xinchao Guo, Yongzhe Yang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25946
ADSORPTION OF HEXACHLOROCYCLOHEXANE BY RAW AND SURFACTANT MODIFIED MEERSCHAUM
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractThe adsorption of hexachlorocyclohexane (HCH) by modified meerschaum was studied. The comparison of the meerschaummodified by anion and cation surfactant was conducted to explore their effect on HCH adsorption. The results showed that theabsorbability of HCH by the CTMAB-M (cetyltrimethylammonium bromide-modified) is better than that of SAS-M (sodiumdodecyl sulphonate-modified) because the CTMAB-M has fluffier fibers structure. The addition of amount of adsorbents shouldimprove the adsor... Autori: Chanjuan Gao, Shengke Yang, Wenke Wang, Yaqian Zhao, Yue Zhao ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25948
FUNCTIONALIZATION AND IMMOBILIZATION OF WHOLE CELL BIOREPORTERS FOR THE DETECTION OF ENVIRONMENTAL CONTAMINATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractThe detection of environmental pollutants has challenged conventional chemical analysis for the rapid estimation of thebioavailability and toxicity of the contamination impact on human health and ecosystems. Magnetic nanoparticles (MNPs)functionalization as bioreporters can enhance the ability for biosensing in complex contaminated samples such as soils, and theimmobilization of bioreporters will promote the detection of gas and online monitoring. In this study, Acinetobacter baylyi ADP1... Autori: Aizhong Ding, Cheng Chen, Dayi Zhang, Musen Duan, Steven F. Thornton, Wei E. Huang, Yanjun Luo ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25952
COMPOSITE VEGETABLE DEGRADATION AND ELECTRICITY GENERATION IN MICROBIAL FUEL CELL WITH ULTRASONIC PRETREATMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractVegetable waste was used as the fuel of a two-chamber microbial fuel cell (MFC) for simultaneous power recovery and wastedegradation. Effects of ultrasonic pretreatment, organic loadings, anolyte pH adjustment on the MFC performance wereinvestigated. Results showed that higher power generation and organic compounds removal efficiency were achieved in theMFCs with the vegetable waste pretreated with ultrasonication at >1.0W/mL compared to the un-pretreated control. A maximumvoltage of ... Autori: Kun Tao, Xiangchun Quan, Yanping Quan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25953
APPLICATION OF GIS IN REGIONAL ECOLOGICAL RISK ASSESSMENT OF WATER RESOURCES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractThe regional ecological risk assessment of water resources has spatial, nonlinear and stochastic characteristics. GIS technologycan handle large volumes of spatial information, conduct spatial analysis and spatial data management operations. It visuallydisplays the distribution trend of environmental factors and the relationship between topology and regional water ecological riskpattern. This paper presents the five stages of the application of GIS in the regional ecological assessment o... Autori: Lin Gang Wang, Ning Lian Wang, Xiao BoWu, Ya Qian Zhao, Yin Ge Liu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25958
SOLVING WATER RESOURCES ALLOCATION PROBLEMS USING HEURISTIC-BASED METHODS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractDue to rapid growth in both population and economic development in China, water demand is increasing dramatically andChina is facing more and more severe water scarcity problems. Thus competitions for water (between uses, users and regions) areincreasing which make water use efficiency an important issue in China, together with the uneven spatial and temporaldistribution of water, all of which drive the Chinese government and water planners to find the optimal water resource allocationpl... Autori: Adrian T. McDonald, Linda See, Martin Clarke, Yanan Jiang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25961
ECOLOGICAL IMPACTS INDUCED BY GROUNDWATER AND THEIR THRESHOLDS IN THE ARID AREAS IN NORTHWEST CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractBased on the field survey, this paper analyzes the relationship between groundwater and ecological environment in arid andsemiarid areas in northwest China. Groundwater in the arid and semiarid areas is a natural resource with economic and ecologicalvalues. The concept of the ecological value of groundwater is firstly presented. This ecological value can be reflected in fouraspects: (1) the maintenance of base flow in rivers and areas of lakes and wetland; (2) the supply of physiological... Autori: Donghui Cheng, Jinling Kong, Lei Duan, Wenke Wang, Zeyuan Yang, Zhoufeng Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25962
A SPECIAL ISSUE ON RECENT ADVANCES IN WATER RESOURCE MANAGEMENT AND POLLUTION CONTROL: WITH SPECIAL FOCUS ON CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 A fast economic development in China over thelast three decades has lifted hundreds of millions ofpeople out of poverty. However, an annual GDPincrease of over 10% due to the large scale industrialactivities and fast urbanization has released substantialamounts of pollutants into the environment and exertedtremendous pressure on local ecosystems. Although alarge amount of investment has been made by theChinese government and a series of efforts have beenmade by the environmental regulators, scie... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25965
RADIATION-INDUCED DECOMPOSITION AND POLYMERIZATION OF POLYVINYL ALCOHOL IN AQUEOUS SOLUTIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 7 AbstractPolyvinyl alcohol (PVA) is a typical refractory organic pollutant with low biodegradability and high molecular weight. Thispaper presents data on the radiolysis of PVA in aqueous solutions by using ionizing radiation. Response surface methodologywith Box-Benhken design of experiment was applied to analyze the interactions among initial concentration of PVA, absorbeddose, and initial pH of aqueous solutions on PVA removal efficiency. 9.4-89.4% PVA was removed based on differentcombination... Autori: Jianlong Wang, Jinping Tian, Lujun Chen, Shijun He, Weihua Sun ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25967
EDITORIAL A SPECIAL ISSUE ON PROGRESS IN ENVIRONMENTAL ENGINEERING, BIOTECHNOLOGY AND MANAGEMENT IN THE FRAME OF KNOWLEDGE-BASED SUSTAINABLE ECONOMY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 The Exploratory Workshop Progress inEnvironmental Engineering, Biotechnology andManagement in The Frame of Knowledge-BasedSustainable Economy took place in the contextwhen worldwide research shows that the currentindustrial system supports a population that useresources and generates waste, consuming the Earth'ssupply, but whos biocapacity is far outweighed bythe increased demand of products for a developmentsystem that often works on unsustainable bases.Todays challenge is the integration ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25969
INDUSTRIAL AND COMMUNAL SUSTAINABLE WASTE MANAGEMENT IN HUNGARY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractConsumption and related waste production is an integral part of our daily lives. The waste generation worldwide depends on theeconomic strength of the given region/country, and it increases from year to year. More and more attention is drawn to the re-use,recycling, reutilization of the waste which are driven mainly by environmental concerns and economic interests. Regional wastemanagement systems have been established in Hungary with the support of EU funds, which process the waste acco... Autori: kos Rdey, , Attila Sarkady, Lszl Dissy, Rbert Kurdi, Tatiana Yuzhakova ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25970
ENGINEERING CHALLENGES IN ADVANCED WASTEWATER TREATMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractWastewater streams and particularly industrial effluents tend to increase in volumes and to get more complex in terms ofpollution. Nevertheless, nowadays the focus is directed towards recycling or reuse of treated wastewater so as to close the wateruse loop. Advanced wastewater treatment allows these possible applications by achieving good quality effluent to suit the newpurposes, but the implementation of this treatment stage is a difficult task. This study gives an example on how to ap... Autori: , Daniela Cailean, Florina Ungureanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25971
VOLUNTARY AGREEMENTS AS A WAY TO STIMULATE INDUSTRIAL ENVIRONMENTAL MANAGEMENT AND THEIR CONDITIONS FOR SUCCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractNumerous governments have adopted innovative policy instruments to deal with important environmental policy challenges.Various forms of negotiated instruments may offer the potential to improve on environmental performance beyond whatregulation alone can accomplish. Dutch covenants, which represent negotiated agreements with sectors of industry as targets ofbehavioral change in terms of mitigation of pollution, waste minimization and sustainable products and processes, provide auseful sa... Autori: , Kris Lulofs, Laura Franco, Theo de Bruijn, Yanyan Xue ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25972
A TECHNO-ECONOMIC ANALYSIS OF BIODIESEL PRODUCTION FROM MICROALGAE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThe preliminary assessment of a cost-effective flow-sheet for the production of biodiesel from microalgae lipid fraction wascarried out. The study was based on approximated cost-estimation methods integrated with the simulation software Aspen Plus.Several scenarios were investigated to compare costs regarding the main steps of the biodiesel production process. Ranges ofinput variables from downstream literature and experimental data were used to simulate the sections that define concret... Autori: Antonio Marzocchella, Giuseppe Olivieri, Piero Salatino, Teresa Guida ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25973
COMPARISON OF COMBINED ETHANOL AND BIOGAS POLYGENERATION FACILITIES USING EXERGY ANALYSIS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractIn this paper, the background of bioethanol as an alternative fuel to conventional one is analyzed with the aim of examining theefficiency of biomass-to-fuel conversion by poly-generation taking into account the energy integration approach for a completerecovery of the process exergy potential.Based on literature data it is underlined that exergy analysis represents a primary tool to analyze the ethanol production processfrom an integrated point of view.... Autori: Anton Friedl, Maria Gavrilescu, Petronela Cozma ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25974
INTEGRATED NETWORK OF CONTINUOUS REACTORS FOR THE DECONTAMINATION OF GASEOUS STREAMS IN HETEROGENEOUS CATALYTIC GAS-LIQUID-SOLID SYSTEMS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractIn this paper integrated network of continuous reactors for the decontamination of gaseous flows in heterogeneouscatalytic gas-liquid-solid also applicable for bioremediation systems is investigated. For this purpose, duringprocess integration we have identified strategies to develop an optimal system for a variety of well-definedrequirements and to discover ways to ensure cost efficiency to achieve the requirements of sustainable industry in theframe of knowledge-based sustainable eco... Autori: Maria Gavrilescu, Oana Marlena Penciu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25977
AWARENESS AND ENVIRONMENTAL ATTITUDE IN THE CONTEXT SUSTAINABLE DEVELOPMENT WITHIN A KNOWLEDGE-BASED SOCIETY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractSince contemporary economical development trends are not sustainable, and given the fact that public involvement, educationand training are key to a society that aims toward sustainability, it is obvious that the role of education is to trigger and developchanges in the individuals values system, behavioral patterns, skills, and attitudes. Providing benchmarks in establishing ageneral framework on education for sustainable development represents a key feature, thus making it possible to... Autori: Carmen Cătălina Ioan, Maria Ileana Carcea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25979
SIMULATION OF PROCESSES IN PAPERMAKING BY WinGEMS SOFTWARE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThe WINGEMS software is a useful tool in analyzing, mathematical modeling and synthesis of chemical processes. Thissoftware can be applied to simulate various stages of the papermaking process. An example of simulation and modeling ofprocess is presented for paper stock preparation line for papermaking. On the basis of data obtained during process analysis, it ispossible to elaborate a strategy for control and monitoring of technological parameters and, while the efficiency of the proces... Autori: Corina Măluțan, Theodor Măluţan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25981
POLYMERIC WASTES FROM AUTOMOTIVES AS SECOND RAW MATERIALS FOR LARGE SCALE PRODUCTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractEfficient large-scale recycling of polymeric wastes for automotives is of increased interest from ecologic and economic point ofview and represents an important goal for the car recycling industry. One alternative is to develop novel composite materials,relying on waste car parts, for indoor or outdoor large-scale applications, without using small molecular plasticizer or otheradditives but insuring a good compatibility for large percentages of thermoset plastics in the composite. Previo... Autori: Anca Duta, Cristina Cazan, Dana Perniu, Mihaela Cosnita ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25982
STREET LITTER REDUCTION PROGRAMS IN THE NETHERLANDS: REFLECTIONS ON THE IMPLEMENTATION OF THE DUTCH LITTER REDUCTION PROGRAM FOR 2007 2009. LESSONS FROM A PUBLIC PRIVATE PARTNERSHIP IN ENVIRONMENTAL POLICY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractOn a daily basis one is confronted with litter. Most forms of litter are, however, of no concern to people. Nonetheless, litteraccounts for serious economic costs, and causes negative effects to health, safety and biodiversity. Most countries implementlitter reduction policy programs, often in the form of litter collection and penalties for littering. Litter reduction does notnecessarily have to be a government initiative as grassroots and business initiatives have shown; for instance, c... Autori: , Laura Franco - Garcia, Theo de Bruijn, Thomas Hoppe ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25983
INSTRUMENTS FOR INTEGRATED WATER RESOURCES MANAGEMENT: WATER QUALITY MODELING FOR SUSTAINABLE WASTEWATER MANAGEMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractThis study presents the development and use of a hydraulic-coupled water quality model for the simulation of BiochemicalOxygen Demand (BOD) concentrations in the Bahlui River, a small river located in northeastern Romania. This river experiencesthe typical pollution problems for many Romanian water bodies: heavy pollution from both diffuse and point sources, lowconnectivity to wastewater systems in rural areas and moderate removal of pollutants in municipal wastewater treatment plants.Th... Autori: , Claudia Cojocariu, Denie C.M. Augustijn, George Brjoveanu, Ioan Crăciun ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25985
MUNICIPAL SOLID WASTE MANAGEMENT AND TREATMENT OF EFFLUENTS RESULTING FROM THEIR LANDFILLING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractEU policy on waste management stresses the importance of an integrated approach to waste management, which includesconstruction of waste disposal facilities with prevention of waste generation and recycling, in line with management hierarchy:prevention of waste and its negative impacts; recovery of waste through recycling, reuse, safe final disposal of waste where thereis no possibility of recovery.This paper address the issue of municipal waste management and the impacts generated into ... Autori: Ana-Maria Şchiopu, Cristina Ghinea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25987
INTER-REGGIO: CONCEPT OF RESTORATION PROJECTS OF LOCAL STREAMS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 8 AbstractWorldwide efforts are made to conserve biodiversity, to avoid degradation of ecosystems and not least to restore ecologicalstreams. Ecological restoration is a field which assume multidisciplinary and multisectoral involvements. In the last yearsecological restoration has emerged as an important component of ecosystem management and environmental protection. Manyprojects were planned and implemented to maintain and improve the ecological integrity of streams, by restoring naturalecosyste... Autori: Cristina Ghinea, Maria Gavrilescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25989
EDITORIAL - A SPECIAL ISSUE DEDICATED TO - ENVIRONMENTAL CONCERNS ON ELECTROMAGNETIC COMPATIBILITY AND ENGINEERING IN MEDICINE AND BIOLOGY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 This special issue of EnvironmentalEngineering and Management Journal is dedicated tointerdisciplinary research and discusses multipleresults addressing environmental issues inElectromagnetic Compatibility (EMC) andEngineering in Medicine and Biology (EMB) areas.Some of the most significant researchdirections considered in this issue entail theelectromagnetic pollution together with a survey ofelectromagnetic environment in order to analyze andquantify the biological and health effects ofelectro... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25990
ADVANCES IN MEASUREMENT AND ANALYSIS OF ELECTROSTATIC DISCHARGE SIGNIFICANCE OF HUMAN BODY CAPACITANCE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe first part of the paper is focused on actual measurements of Human Body Capacitance (HBC). Even if we have developedthree fundamental key diagrams for factual measurements of this capacitance, we have here detailed and compared only theobtained results for two variants of the method based on the measurement of the influence of a precisely-known capacitance uponthe human (alternative or continuous) potential, with respect to earth.The second part aims to investigate the relationship b... Autori: Alexandru Salceanu, Eduard Lunca, Oana Beniuga ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25991
MITIGATION OF POWER FREQUENCY MAGNETIC FIELD NEARBY POWER LINES USING RECTANGULAR FRAMES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe paper outlines a technique to mitigate the power frequency magnetic field produced in its vicinity by the transport anddistribution power lines. The technique consists in introduction below the line conductors of a passive loop of rectangular shape.Due to the induced currents in the rectangular frame, the total magnetic field below this structure is significantly reduced. Themethods efficiency depends by the line conductors configuration and also by the dimensions of the frame. The... Autori: Călin Munteanu, Emil Merdan, Ioan T. Pop, Sorin Deleanu, Vasile Topa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=25994
ANALYSIS OF MAGNETIC GRADIENT SIGNAL IN UNSHIELDED ELECTROMAGNETIC ENVIRONMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe paper analyses the spatial distribution of the magnetic field and the first and second order gradients produced by two sources,a disturbances source and a biosignal source, as well as the effect of the gradiometer basis on gradient measurement. Thecontribution of a magnetic disturbance to signal/disturbance ratio is analyzed when the biomagnetic field is measured in anelectromagnetic unshielded environment.... Autori: Miuta Carmina Rau, Octavian Baltag ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26000
ANALYSIS OF BRAIN ACTIVITY IN THE CASE OF MAGNETIC FIELD EXPOSURE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThis paper presents some results of the brain electrical activitys analysis in case of the magnetic stimulation. It was recorded andanalyzed the electroencephalography (EEG) signal during magnetotherapy procedures in abdominal region, considering this factlike as a possible exposure of subject at magnetic field. The recordings of EEG signals are performed on 13 healthy volunteers inthree conditions (before, during and after magnetic stimulation), using three types of sinusoidal pulses. ... Autori: Călin Corciovă, Doru Andriţoi, Mariana Ciorap, Radu Ciorap, Valeriu David ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26005
RECORDING AND PROCESSING ELECTROCARDIOGRAPHY SIGNALS DURING MAGNETOTHERAPY PROCEDURES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThis paper presents the results of electrocardiography (ECG) signals recording when the subjects were exposed to magnetotherapy procedure, with different magnetic field pulses. After the time domain and frequency domain representations of therecorded signals, there were trying to recover ECG signals waveforms, especially those during magneto therapy. In order toidentify possible changes in ECG signals during the exposure to magnetic fields, there were also determined the R-R intervalvari... Autori: Doru Andriţoi, Marius Branzila, Radu Ciorap, Valeriu David ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26006
IDENTIFICATION OF PSYCHOLOGICAL STRESS BY ANALYZING ELECTROCARDIOGRAPHIC SIGNAL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractIt is already demonstrated that mental or psychological stress can affect human health, since it is a major risk factors for numerouscurrent diseases such as: high blood pressure, congestive heart failure, coronary diseases, stroke, causing often sudden death.These diseases are particularly dangerous in the case of car drivers, since they have to make accurate and fast decisions evenunder stress condition. Frequently, the stress can be detected by different methods with various degrees o... Autori: Alexandru Păsărică, Cristian Rotariu, Hariton Costin ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26008
ASSESSMENT OF SYNERGIC REGULATORY ACTIONS OF SPRUCE BARK EXTRACT AND DEUTERIUM DEPLETED WATER ON MAIZE (Zea mays L.) CROPS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractThe aim of this study was to evaluate the effect of polyphenolic extract and deuterium depleted water (DDW) as bioregulators inmaize (Zea mays L.) plant cultivation. The aqueous extract obtained from spruce bark (two levels of concentration), pure DDWand DDW in combination with spruce extract were used. The test solutions were applied by spraying and the maize plant growthand alelopatic effect on the development were studied. The following specific plants parameters were monitored: growt... Autori: Corneliu Tănase, Irina Volf, Valentin I. Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26012
STUDIES ON HEAT RECOVERY FROM CELLULOSIC TEXTILES FINISHING WASTEWATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 AbstractDue to high energy costs and the rising consciousness of energy issues in the textile industry, saving energy became a significantproblem. Since a large amount of the energy required in textile finishing is needed in the form of steam for various processes,recovering wastewater heat has great potential for cost reduction. In this research, it was studied the heat recovery from cellulosictextiles finishing wastewater, based on a case study in a textile company. After examining the wastewa... Autori: Armand F. Bertea, Gheorghe Condurache, Răzvan Berariu, Romen Butnaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26013
Environmental Engineering and Management Journal - Vol 12, No 6
Environmental Engineering and Management Journal › Vol. 12 › Nr. 6 STUDIES ON HEAT RECOVERY FROM CELLULOSIC TEXTILES FINISHING WASTEWATER ASSESSMENT OF SYNERGIC REGULATORY ACTIONS OF SPRUCE BARK EXTRACT AND DEUTERIUM DEPLETED WATER ON MAIZE (Zea mays L.) CROPS LUNG CANCER RISK INDUCED BY RESIDENTIAL RADON IN CLUJ AND ALBA COUNTIES, ROMANIA A CLEAR SKY IRRADIATION ASSESSMENT USING THE ESRA MODEL AND SRTM DATABASE ENVIRONMENTAL FACTORS ASSOCIATED WITH DYSPHONIA IN PROFESSIONAL VOICE USERS ... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26014
EDITORIAL - A SPECIAL ISSUE DEDICATED TO ENVIRONMENTAL RESEARCH AND TECHNOLOGY ECOIMPULS 2012 INTERNATIONAL CONFERENCE, October 25-26, Timisoara, Romania
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 The first edition of the International ConferenceECOIMPULS 2012- Environmental Research andTechnology plans to open a conference seriesdedicated exclusively environmental issues. Thescientific topics are devoted to the on-going research onenvironmental topics regarding: Environment apolitical, economic and social responsibility,Water in a changing world, ZERO waste citiesand Energy beyond the conventional.This scientific event aims to bring togetherprofessionals, academics, scie... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26015
ANALYTICS FOR SUPPORTING URBAN WATER MANAGEMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractWater distribution networks are complex systems that require innovative technological solutions enabling an integrated andrational water resource management. This paper presents the application of data analytics approaches on flow and pressure data,continuously measured at crucial points of the network, for improving efficiency of leak localization. The general goal is toreduce time and costs for physical check and consequent rehabilitation activities.Although the general benefits provid... Autori: Antonio Candelieri, Enza Messina, Francesco Archetti ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26018
ENERGY RECOVERY FROM SLUDGE WITH LOW ORGANIC LOADS RESULTED FROM WASTEWATER TREATMENT PLANTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe developing of the infrastructure for wastewater collection and treatment in Romania is leading more and more to theproduction of huge quantities of activated sludge, as direct result of the application of state of wastewater treatment. The rapidand rational development of a national policy for management of activated on short, medium and long term has emerged as anecessity, and must be implemented urgently.The EU 27 countries consider environmental management of activated sludge as a... Autori: Ilie Vlaicu, Ioan Neamt, Ioana Ionel, Mihail Reinhold Wchter ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26019
SOLID WASTE MANAGEMENT IN ROMANIA: CURRENT AND FUTURE ISSUES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractWaste management includes all activities of collection, transport, treatment, recovery and disposal of waste, includingsupervising of such operations. The framework law that regulates waste management activities in Romania is Law no. 27/2007,approving Government Emergency Ordinance no. 61/2006, amending and supplementing Government Emergency Ordinance no.78/2000 on waste regime. This legislation sets the responsibilities for waste management from generation to disposal, thepriorities in ... Autori: Constantin Mircea Orlescu, Ioana Alina Costescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26020
DSA ELECTRODES FOR TREATING PHARMACEUTICAL EFFLUENTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractIn the last years many papers have reported about the occurrence of the pharmaceuticals in the surface waters and theirundesirable effects upon the aquatic life. Most of pharmaceuticals pass through the wastewater treatment plants unchangedbecause they are biorefractory compounds and as a result they enter the water bodies. Therefore, it is necessary to improve thebiodegradability of pharmaceuticals effluents (PhEs) before their discharge in the sewerage systems. The aim of this paper wa... Autori: Carmen Lazău, Florica Manea, Monica Ihos ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26021
COMPOSITE MATERIAL BASED ON SILVER-DOPED ZEOLITE AND MULTI-WALL CARBON NANOTUBES FOR HUMIC ACID REMOVAL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractIn this paper the synthesis, characterization and testing of composite material based on multi-wall carbon nanotubes and silverdopednatural zeolite (MWCNT-ZAg) has been investigated for humic acid (HA) adsorption. The surface characterization of thecomposite material has been investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM/ EDX) analysis.The Langmuir and Dubinin-Radushkevich (D-R) models fitted the best experimental data informing that adsorption process ofH... Autori: Aniela Pop, Corina Orha, Florica Manea, Virgil Tiponut ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26023
KINETIC STUDY OF HEXAVALENT CHROMIUM REMOVAL FROM WASTEWATERS BY ION EXCHANGE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractIn spite of the fact that concern on water quality protection raised in the last decades heavy metals pollution still represents agreat threat for both human health and environment quality. Ion exchange proved to be an effective technique for industrialwastewaters treatment, as long as it ensures an effective recovery of valuable compounds. The main purpose of this work is toassess the performances of a commercial ion resin sort (a strong basic anionic resin VIONIT AT 21), to remove ch... Autori: Alexandra Raluca Miron, Cristina Costache, Cristina Modrogan, Dumitru Giani Apostol, Oanamari Daniela Butucea, Redha Kouachi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26025
MAGNETIC FLUID EQUIPMENT FOR SORTING SECONDARY POLYOLEFINS FROM WASTE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe paper presents the research made on the FP7 project Magnetic Sorting and Ultrasound Sensor Technologies for Productionof High Purity Secondary Polyolefins from Waste in order to develop a magnetic fluid equipment for sorting of polypropylene(PP) and polyethylene (PE) from polymers mixed waste streams. Because both PP and PE float in water, it is difficult to separateone from the other. The paper presents the principles of inverse magnetic density separation process and the results ... Autori: Bin Hu, Francesco Di Maio, Guillaume Houzeaux, Liana Baltes, Mircea Tierean, Peter Rem ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26028
SYNTHESIS OF NANOCRYSTALLINE ZnFe2O4 AND ITS USE FOR THE REMOVAL OF CONGO RED FROM AQUEOUS SOLUTIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe paper describes the synthesis of nanocrystalline zinc ferrite starting from 1,4-butanediol and a mixture of zinc and ironnitrates. During the heating of the obtained solution, a redox reaction takes place with emission of brown nitrogen oxides andformation of a solid powder. This powder was characterized by thermal analysis and FT-IR spectrometry, techniques thatconfirmed the formation of a mixture of zinc and iron carboxylates. This mixture was further used as precursor for zinc fer... Autori: Cornelia Muntean, Marcela Stoia, Paul Barvinschi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26029
CFD MODELING AND SIMULATION OF A SURFACE WATER TREATMENT PILOT PLANT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe hydrodynamics of two equipments from a surface water treatment pilot plant has been investigated through residence timedistribution (RTD) experiments using brine solution as tracer. Computational Fluid Dynamics (CFD) procedure, which isincreasingly utilized to study a wide variety of complex environmental fluid mechanics processes, was used to predict the flowpatterns and other properties of flowing fluids (e.g. velocity, concentration of species etc.). In this work, ANSYS Fluent 14.... Autori: Adina Pacala, Alain Lin, Alexandru-Dan Filep, Cosmina-Mariana Militaru, Teodor Todinca ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26030
SUSTAINABILITY ISSUES AND TOURISM DEVELOPMENT IN SUCEAVA COUNTY, ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractMaking tourism more sustainable, means not only to control and manage the negative environmental impacts of this sector.Tourism is unique in the sense that it can provide both economic and social benefits for local communities and it can alsostrengthen the awareness and support for environmental conservation. The purpose of this paper is to provide a framework formore sustainable tourism development policies, but also a set of instruments to implement these policies. We used in this stud... Autori: Carmen Teodosiu, Elena Elisabeta Pomeanu, Eric Boutin, Simona-Andreea Ene Popa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26031
KINETIC, EQUILIBRIUM AND THERMODYNAMIC STUDIES OF CESIUM REMOVAL FROM AQUEOUS SOLUTIONS USING AMBERJET UP1400 AND AMBERLITE IR120 RESINS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe performance of two cation exchanger resins, Amberjet UP1400 and Amberlite IR120 in the process of Cs(I) ions removalfrom aqueous solutions was examined. Batch experiments were carried out to determine the influence of several parameters(resin dosage, contact time, temperature and initial concentration of Cs(I) ions) on the removal process. The equilibrium wasreached after 60 min for Amberlite IR120 and after 120 min for Amberjet UP1400, with an overall adsorption performance of~97% f... Autori: Adina Negrea, Cornelia Muntean, Corneliu Mircea Davidescu, , Mihaela Ciopec, Petru Negrea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26032
TECHNICAL, ECONOMICAL, SOCIAL AND ECOLOGICAL CHARACTERISTICS OF VACUUM SEWAGE SYSTEM
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractIn this paper we analyzed some characteristics of vacuum sewer systems from technical, economical, environmental and socialperspectives. The vacuum sewer systems transport wastewater with lower pressure (p<pat), and are compared to conventionalsewer systems with free level (p = bed) - gravity and under pressure systems (p>pat) - gravity or pumping systems. Vacuumsewer systems are recommended for rural communities and residential neighbourhoods surrounding urban areas, developed ons... Autori: Corina Panfil, Ion Mirel, Izabella Szigyarto, Monica Isacu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26035
RECOVERY OF PRECIOUS METALS FROM WASTE ELECTRONIC EQUIPMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractPrinted circuit boards-PCBs are particularly rich in copper and precious metals. Recoveries of metals in our work started withtests for electrodeposition of Au, Ag and Cu from synthetic solutions on graphite and copper electrodes. Processes were studiedusing cyclic voltammetry in ranges: (-1200)-500 mV and (-800)-(-200) mV and (-400)-1400 mV. Different supportingelectrolytes like: H2SO4 0.5M, HCl 0.1M and HNO3 0.1M were used. Electrodeposition of studied metals from real solutions wasfol... Autori: Adina Căta, Cristian Tănasie, Daniel Boc, Firuţa Fiţigau, Mariana Nela Stefănuţ, Paula Sfrloagă, Raluca Pop, Zoltan Űrmsi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26036
HUMAN HEALTH RELATED TO IODINE ENVIRONMENTAL OCCURRENCE AND ITS DEFICIENCY IN WATER AND FOOD
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractIodine is essential for the synthesis of thyroid hormones which are extremely important in the process of growth and developmentof human body. The effects of iodine deficiency implies thyroid enlargement (goiter) and others disturbances so called iodinedeficiency disorders (IDD). The iodine deficiency is an ancient but still existing problem with medical and environmentalconnotation. Soil and water from various regions worldwide are iodine deficient. This problem is aggravated by defores... Autori: Carmen Vulpoi, Cristina Cristea, Cristina Preda, Letitia Leustean, Maria Christina Ungureanu, Maria Gavrilescu, Voichita Mogos ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26038
PUBLIC PARTICIPATION IN WATER RESOURCES MANAGEMENT IN ROMANIA: ISSUES, EXPECTATIONS AND ACTUAL INVOLVEMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractWater and its sustainable use is closely connected to developments in other fields, such as industry, agriculture and services,energy, nature conservation and health. The pressures imposed by the higher water demands, quality of discharges and climatechange raise new water challenges which can be overcome only by coordinated efforts of multiple stakeholders throughcooperation and participatory processes.This study presents how public participation within the context of integrated water... Autori: Carmen Teodosiu, George Brjoveanu, Joanne Vinke-de Kruijf ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26039
HYBRID MATERIALS FOR THE REMOVAL OF ORGANIC COMPOUNDS FROM WATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractWater quality is an inportant concern for the ecosystem state from a particular region. Since the continuous urban and economicdevelopment induces a negative impact on entire hydrological cycle, this study investigates the water quality of a Romanian lake,located in the Surduc area - Timis County. This perimeter has undergone significant economic development in the past twodecades due to increased tourism potential and the number of holiday residences.We proposed hybrid materias for the ... Autori: Adina-Elena Segneanu, Cornelia Bandas, Florentina Cziple, Ioan Grozescu, Paula Sfrloagă, Titus Slavici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26040
RESPONSE SURFACE METHODOLOGY APPLIED FOR THE OPTIMIZATION OF REACTIVE BLACK 5 DISCOLORATION IN A FENTON-LIKE PROCESS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThere are many treatment methods used to remove color from textile wastewater, and Fenton oxidation, a well known AdvancedOxidation Process is one of the most efficient. Apart of Fe(II), other metal ions have been used as catalysts in Fentons Reagent,and Cu(II) proved to be a good alternative.In this study the effect of the concentration of dye, catalyst and hydrogen peroxide were studied and optimized for thediscoloration process of Reactive Black 5 using a Fenton-like process, H2O2/Cu... Autori: Andrei-Petru Bertea, Armand-Florin Bertea, Romen Butnaru ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26042
PHYTOEXTRACTION OF HEAVY METALS FROM INDUSTRIALLY POLLUTED ZONE USING Lolium perenne AND Lemna minor
Environmental Engineering and Management Journal › Vol. 12 › Nr. 5 AbstractThe paper intends to contribute to the stages of bioremediation technologies elaboration, by means of experiments and efficiencydemonstrations of adequate biological depollution and ecological reconstruction methods. During the 2009-2011 period, heavymetals and metalloids, etc phytoextraction tests were performed with Lolium perenne L, from tailing samples collected fromwaste heaps and tailings dams of the mining exploitations (Rodna, BistriţaNăsăud, Fundu-Moldovei, Sucea... Autori: Alexandru Crihan, Alin Bolonyi, Bianca Malschi Florian, Cecilia Roman, Dana Malschi, Dorian Brăhaiţa, George Ghira, , Marin Şenilă, Mirela Miclean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26044
EDITORIAL - A SPECIAL ISSUE DEDICATED TO ACHIEVEMENTS AND PROSPECTS IN HYDROTECHNICAL, GEODESY AND ENVIRONMENTAL ENGINEERING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 In 2012, the Faculty of Hydrotechnics,Geodesy and Environmental Engineering of The"Gheorghe Asachi" Technical University of Iasi,Romania celebrated 50 years of education in the fieldof hydraulic engineering at the Polytechnic Instituteof Iasi.In 1948, in the same time with the EducationReform in Romania, in Galati, the Faculty ofHidrology was founded. At the same time, studentswho were attending the Rural EngineeringSpecialization in Bucharest were also transferred tothe new established Faculty.... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26048
ASSESSMENT OF THE IMPACT OF RIVERBED DESIGN ON WATER QUALITY THE CASE STUDY OF BAHLUI RIVER, IAŞI, ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractIn 2010 in the area of Iasi city, Romania started the Water-course regulation of Bahlui River, County of Iaşi a project which inits first phase of development. It has as the main purpose to improve stream flow capacity and to guarantee the defending againstflood. Also, the project aim at developing a section of approximately 2.5 km located between the Stone Bridge (km 14+073) andTudor Vladimirescu Bridge (km 11+615) for recreational purposes. In order to obtain water storage, it i... Autori: Catrinel-Raluca Giurma-Handley, Costel Boariu, , Tomi-Alexăndrel Hrăniciuc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26050
EDUCATIONAL MANAGEMENT AND LEADERSHIP STRATEGIES IN THE AGRICULTURAL PRACTICAL TEACHING PARTNERSHIPS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractActing on the recommendations of the Commissioner for Education, Culture, Multilingualism and Youth - Androulla Vassiliou,EU politicians agreed, at the European Council in Brussels - 2010, that education and training are vital for development and thesuccess of society and the current knowledge-based economy. Educational partnerships among all stakeholders engaged ineducation are increasingly important, while teachers and all the professionals involved in training young people must suppor... Autori: Carmen Olguţa Brezuleanu, , ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26052
INCREASING ENERGY EFFICIENCY OF WASTEWATER TREATMENT PLANTS BY UPGRADING THE CONVENTIONAL TREATMENT PROCESS WITH NEREDA TECHNOLOGY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractGranular sludge technology NEREDA is one of the most significant achievements in environmental biotechnology of the XXIstcentury. NEREDA is the latest innovative technology for biological wastewater treatment, which purifies water using the uniquecharacteristics of aerobic granular biomass. Unlike conventional processes, bacteria of the biological process naturally focus incompact granules with good settling properties.Due to the variety of biological processes that occur simultaneousl... Autori: Ilinca Dinu, Ioan Crăciun, Teodora-Manuela Cornea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26053
NUMERICAL MODELLING OF CHLORINE DISTRIBUTION IN AN URBAN WATER SUPPLY SYSTEM
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractA simplified numerical model of the water distribution network of a medium sized town (with 30,000 inhabitants), of elongatedshape, was implemented in EPANET. The decay of chlorine residual concentration in the above mentioned network was studied,using the extended time analysis capabilities of EPANET, for a 3 days period. The water supply system, composed of one tank, 86pipes and 52 nodes is driven by gravity. The chlorine is injected at the tank with a constant concentration amount. Th... Autori: Andrei-Mugur Georgescu, Sanda-Carmen Georgescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26054
DEVELOPMENT OF LABOUR MARKET AND ENTREPRENEURIAL SPIRIT IN RURAL AREAS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractIncreasing the labor force employment and participation rates is sustained by capitalization of human opportunities existent inrural areas. This entails a flexible and inclusive labour market and a decreasing rate of exclusion for some rural groups.This paper highlights the need of facilitating the access to the labour market by achievement of professional skills needed in nonagriculturalsectors from rural areas for the vulnerable groups as well as the entrepreneurial groups. The analysi... Autori: Carmen Olguta Brezuleanu, , ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26059
METRIC AND NON-METRIC CAMERAS CALIBRATION FOR THE IMPROVEMENT OF REAL-TIME MONITORING PROCESS RESULTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractIn recent years non-metric digital cameras have known a great development, being used in wide applications, such as: real timemonitoring and preservation of cultural heritage, the shoreline dynamics study, the wave movement for costal protection, soilerosion, etc. Clasic photogrammetry with the use of metric cameras are still of great use in areas such as architecture andenvironmental imaging. An old problem occurs when we want to extract metric information from our environment using clo... Autori: Ersilia Oniga, Maximilian Diac ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26061
REDUCING ENERGY CONSUMPTION BY UPGRADING PUMPING STATIONS IN WATER DISTRIBUTION SYSTEMS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractAdjusting the operating parameters of pumping stations equipped with fixed speed pumps is achieved by manipulating the valvesfrom the pumps discharge. In order to meet the requirements of the distribution networks, the pumps are being strangled atstartup and they remain so throughout the entire period of operation. This paper presents a method developed to estimate theenergy costs in a pumping station operation, based on an analysis using the data recorded in the register of the station... Autori: Liviu Valer Hasegan, Sorin Perju ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26063
SOIL STRUCTURE AND WATER-STABLE AGGREGATES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe stability of soil aggregates is an indicator of soil structure. Soil acidity affects soil structure stability. Soil acidity has twocomponents: active acidity and exchangeable acidity. In natural conditions, each soil type has a certain level of acidity, which isgiven by its composition, natural vegetation, the chemical composition of precipitations and other factors that cause changes overtime in soil pH. Acidic soils are characterized by physical, chemical and biological properties ... Autori: Dorin Cotiusca Zauca, , Lucian Vasile Pavel ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26064
RESOURCE CONSERVATION IN SANITARY PAPER MANUFACTURING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractTraditionally, sanitary papers are obtained from virgin cellulosic fibers. Because the production of virgin fibers requires largequantity of wood it is an unsustainable process. In addition, virgin fiber pulp is expensive and deficient, being unattractive forpaper producers. Using of virgin fiber is a waste, because sanitary papers cannot be recovered. Due to the fact that the price ofsanitary papers must be as low as possible, the paper mills focused on the use of recovered fiber as raw... Autori: Dan Gavrilescu, Iftimi Viorel, Roxana Vlase ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26067
FUNDAMENTATION OF HUMAN RESOURCES IN AGRICULTURAL EXPLOITATIONS ON THE BASIS OF LABOUR PRODUCTIVITY INDICATORS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe role of human resources in agricultural exploitations proved to be an essential matter due to the decisive influence on theagricultural crop efficiency and production results. There exist particularities regarding the calculation of the human resourcesnecessary in vegetal crop production, animal husbandry and other activities connected with agriculture. From an economicalfinancialpoint of view, the analysis of human resources efficiency is based on two indicators, as follows: labour ... Autori: Carmen Olguta Brezuleanu, , ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26068
SOME EFFECTS OF ECO-CEMENT STABILIZATION OF EXPANSIVE SOILS ON CRITICAL STATE PARAMETERS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe objective of this paper is to investigate the effect of expansive soil treatment with Eco-Cement (EC) stabilizer, as beingcomposed of an alternative binder that partly substitutes the Ordinary Portland Cement (OPC). The extended use of EC in soilstabilization will carry several significant environmental benefits. Firstly the by-product resulted from the production of iron in ablast furnace will be reused, that otherwise will be stored on the ground in deposits representing an importa... Autori: Anghel Stanciu, Irina Lungu, Mircea Aniculăesi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26069
ECOLOGICAL FOOTPRINT APPLIED IN THE ASSESSMENT OF CONSTRUCTION AND DEMOLITION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractConstruction and demolition waste (C&DW) are the result of inefficient and unsustainable use of natural resources and energy inproduction processes and other human activities, leading to economic losses. In this paper, the Ecological Footprint (EF), as a newindicator and methodology in environmental sustainability assessment was used to calculate where and how the humans induceimpacts on the environment, in particular due to the generation of C&DW. Ecological footprint makes a re... Autori: Alessandra Bonoli, Cristina Ghinea, Isabela Maria Simion, Maria Gavrilescu, Nicolae Taranu, Sebastian George Maxineasa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26070
ASSESSMENT OF FIRM REPUTATION CAPITAL AND SUSTAINABILITY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe concept of firm reputation is tightly connected to the concept of corporate social responsibility and implicitly to that ofsustainable development. Reputation is the achieved result of the company out of factors such as economic viability, socialinvolvement and ecological health. The strength of a firm`s reputation is the ability to empower with core competences and usethem efficiently for both creating economic value and meeting the legal interests of the stakeholders. The main assu... Autori: Manoela Popescu, Roxana Arabela Dumitraşcu, Vadim Dumitraşcu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26071
WASTEWATER FOR IRRIGATION IN AGRICULTURE: SOME EFFECTS OF EFFLUENT ON SOIL QUALITY AND CANOLA (Brassica napus oleifera) GROWTH
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractConsidering the decrease water resources in the past decade, research for rational solutions on water use has become a worldwideconcern. Agriculture is the largest consumer of water, and when the soil moisture level is not assured of precipitation, it issupplemented by irrigation. In the current context of climate change, and consequently the arid territories growth, the researchersare looking for solutions to rational water consumption, and equally to cover the deficit of water in agric... Autori: Cristina Elena Iurciuc, ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26072
PRELIMINARY TRIAL APPLICATION OF BIOLOGICAL DESULFONATION IN ANAEROBIC DIGESTORS FROM PIG FARMS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThis paper describes preliminary tests carried out in treatment plants serving two different pig farms in Northern Italy, in order toassess the feasibility of implementing biological sulphur removal from biogas produced by anaerobic digestion processes. Thisnormally consists of mixture of CH4, CO2, and other gases; in the presence of sulphur, H2S is also formed, which must beremoved prior to the gas use in thermal engines, to avoid corrosion phenomena. Sulphur removal in the plants consi... Autori: Andrea G. Capodaglio, Arianna Callegari, Vincenzo Torretta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26074
ENVIRONMENTAL MANAGEMENT ISSUES IN FOOD INDUSTRY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractOne of the main objectives of S.C. AVI-TOP S.A. Războieni Iasi management is the implementation and continuousimprovement of a functional environmental management system in accordance with European standards and their integration intothe units management systems. Environmental management strategy at S.C. AVI-TOP S.A. Războieni Iasi aims to achieve abalance between economic and environmental protection outcomes, directing all activities towards eliminating pollution. Thepap... Autori: Aurel Chiran, Benedicta Drobotă, Elena Gindu, Monica-Ionela Pandelea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26076
WATER MANAGEMENT AT THE FORMER COPPER MINING SITE MEDET (BULGARIA)
Environmental Engineering and Management Journal › Vol. 12 › Nr. 4 AbstractThe scope of the present paper is water management dimensioning closed to the copper mining area in the Medet region(Bulgaria). The mining works left an open pit and several waste rock dumps within the catchment area of Medetska River. Atpresent although the flooding of open pit is going on, it will be finished approximately in 2018. Water treatment is necessary dueto the high concentrations of pollutants (sulphate and copper) in the waters influenced by mining. The objective of the stud... Autori: Gabriela Biali, Petra Schneider, Ralf Lser ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26077
ISOTHERM AND KINETIC STUDIES OF RESIDUAL OIL ADSORPTION FROM PALM OIL MILL EFFLUENT (POME) USING BOILER FLY ASH
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe removal of residual oil from palm oil mill effluent (POME) using boiler fly ash was studied in this paper, with focus on theadsorption isotherms and kinetic studies by measuring the residual oil concentration using UV-spectrophotometer. The percentresidual oil adsorbed decreased from 80% to 5% as contact time was increased from 10 mins to 120 mins but increased from2.74% to 72.98% as initial concentration of residual oil increased from 0.04812 mg/L to 0.2406 mg/L. Pseudo-second order... Autori: Jude C. Igwe, Stella N. Anioke, Uche Arukwe ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26078
INVESTIGATION OF ISOTHERMAL AND FIXED-BED COLUMN SORPTION OF Cu (II) ONTO ALMOND SHELL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe present study reports the efficiency of almond shell as a cheap and available material for the removal of Cu (II) fromcontaminated aqueous solutions. The equilibrium experiments indicated that Cu (II) sorption obeyed the Langmuir isotherm at26, 40 and 55oC. The highest value of the maximum uptake (Qo) from the Langmuir equation was found 6.783 mg g-1 at 40oC.The various thermodynamic parameters such as ΔGo, ΔHo and ΔSo were also calculated. The values of ΔGo varie... Autori: Soheil Aber ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26080
TRAFFIC NOISE MEASUREMENT AND PREDICTION OF THE BARRIER EFFECT ON TRAFFIC NOISE AT DIFFERENT BUILDING LEVELS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractWith the development of transportation systems, the associated traffic noise problem has drawn more and more attention in HongKong. Under the Hong Kong Planning Standards and Guidelines, a standard of 70 dB(A), measured as LA10 (1 hour), has been setfor road traffic noise. The Calculation of Road Traffic Noise (CRTN) method has been adopted in Hong Kong to estimate suchnoise. This study first examined and evaluated the accuracy of this method in predicting traffic noise at different floo... Autori: Cheuk Ming Mak ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26082
CHEMOMETRIC CLASSIFICATION OF ADVANCED OXIDATION PROCESSES FOR THE DEGRADATION OF PHARMACEUTICALS AND PERSONAL CARE PRODUCTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe present study was focused to classify various advanced oxidation processes (AOPs) to degrade sixteen commonpharmaceuticals and personal care products (PPCPs). The classification was based on the degradation rate constant (h-1).Chemometric techniques like principal component analysis (PCA) and cluster analysis (CA) were used to classify AOPs whichcan efficiently degrade a certain class of PPCPs. The bipolt based on first two principal components (PCs) of PCA modelidentified two distin... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26085
KINETICS AND EQUILIBRIUM ADSORPTION STUDY OF LEAD (II) ONTO LOW COST CLAYS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe performance of four low cost Iraqi clays, bentonite (BT), kaolinite (KT), attapalgite (AT) and flint (FT) to remove lead ionsfrom aqueous solutions by adsorption was investigated. Batch experiments were carried out at pre determined equilibration time,adsorbent dosage, solution pH, particle sizes, ionic strength, initial lead ions concentration and temperature. Adsorption of Pb2+ions was strongly affected by pH and best adsorption is achieved at pH 4.5. The systems were investigated ... Autori: Najwa I. Abdulla ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26086
ELECTROCHEMICAL MINERALIZATION OF REACTIVE RED 147 DYE ON BORON-DOPED DIAMOND ELECTRODES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractA study on the electrochemical decolourisation, aromatic ring degradation and mineralization of Reactive Red 147 (RR) syntheticsolutions using boron-doped diamond (BDD) electrodes is presented. Electrolyses were carried out under galvanostaticconditions in 0.1 M Na2SO4 supporting electrolyte using undivided electrolytic cell. Prior to electrolysis application, theelectrochemical behaviour of BDD electrode was characterized in the presence of RR dye by cyclic voltammetry in order toestabl... Autori: Sorina Moţoc ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26089
ELECTROCOAGULATION-TiO2 PHOTO-ASSISTED COMBINED SYSTEM APPLIED TO METHYL ORANGE WASTEWATER REMOVAL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractCombined electrocoagulation (EC) and homogeneous phase TiO2 photo-assisted system were applied to methyl orange (MO)wastewater treatment. Optimum including current density, initial concentration of MO, TiO2 concentration, pH, solutionconductivity and electrode distance were investigated. 98% decolorization (initial concentration = 500 mg/L) was achieved in 30min with a current density of 125 A/m2, electrode distance of 2.5 cm, electrolyte KCl concentration of 0.5 g/L, initial pH of 6.86,... Autori: Yi Zhang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26090
DRIVING FORCES OF WEEE MANAGEMENT: A PEST ANALYSIS OF ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractWaste electrical and electronic equipment (WEEE, e-waste) represent the category of municipal waste with the fastest growthrate of the quantities generated particularly in developed countries. In Romania the WEEE management concerns have emergedrecently and the amount of information and data available is limited and sometimes irrelevant. In this case, studying the forcesthat influence WEEE management system directly or indirectly is useful for both the national and international stakehol... Autori: Nadia Ciocoiu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26092
STUDIES ON THE TOXICITY OF COMPOSITE TANNERY EFFLUENT USING GUPPY (Poecilia reticulata) AS A FISH MODEL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractEast Calcutta Wetland ecosystem is a Ramsar Site in India covering almost 51 km2 and is one of the largest of its type. Thiswetland receives a massive load of almost untreated industrial and domestic effluents every day, throughout the year, that hasbeen effectively utilized in pisciculture for having a better yield (2.85 metric tons of fish per 0.01 km2 of water body per annum).The present investigation was carried out to study the toxicity of the untreated effluents discharged from tan... Autori: Utpal Singha Roy ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26094
ENVIRONMENTAL IMPACT ASSESSMENT FOR TRADITIONAL VERSUS RECYCLED ROAD ASPHALT MIXTURES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThe evaluation of the environmental impact of transport infrastructure entails a complex characterization of factors, attitudes andconsequences. In the frame of an ecologically friendly approach, sustainable alternatives and solutions for road asphaltpavements production and exploitation must be identified. A comparative evaluation of the environmental impact for recycledand traditional road pavements asphalt mixtures, expressed as the amount of equivalent carbon dioxide, per ton of mixt... Autori: Alina Mihaela Nicuţă ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26096
UTILIZATION OF OLIVE OIL AS A POTENTIAL OXYGEN-VECTOR IN STIRRED BIOREACTORS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractA new approach to environmental protection management is the aerobic microbial digestion of food industry wastewaters byusing those waters as substrate, while the pollutants contained work also as oxygen-vectors. In biotechnology, oxygen masstransfer is a key parameter involved in the design and operation of mixingsparging bioreactors and it can be analyzed by meansof the oxygen mass transfer coefficient (kLa). The influence of a second liquid phase with higher oxygen affinity (in this ... Autori: Elena Folescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26097
TECHNICAL SOLUTIONS TO IMPROVE PERFORMANCE OF THE RECYCLED CEMENT CONCRETE AGGREGATES FOR DURABLE ROAD PAVEMENTS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThis paper presents the results of the research analyses and laboratory studies, aiming to develop design guidelines and suitabletechnologies for the construction of durable and environmental friendly rigid pavements by using recycled cement concrete,resulted from various demolition works. Various recycling principles and technologies, specific laboratory methods of improvedtechnical solutions to enhance wear coefficients, density homogeneity, mixture contamination and water absorption o... Autori: Marius Muscalu ISSN: 1843 - 3707Abstract This paper presents the results of the research analyses and laboratory studies, aiming to develop design guidelines and suitable technologies for the construction of durable and environmental friendly rigid pavements by using recycled http://www.ecozone.ro/reviste.php?RID=26098
TOWARD A BLACK SEA COMMUNITY TAKING THE ADVANTAGES OF HYDROGEN ECONOMY-ENERGY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 AbstractThere are a quite large number of studies published in the last decade, dealing with the possible pass of the human society to thehydrogen-based energy. The efforts made by researchers all around the world, in order to bring technical solutions, seemremarkable, but at global level only minor progresses were made toward this major change. Furthermore, most of studiespredicted a fuel crisis, but not a possible economical crisis with significant effects on the developing renewable energytec... Autori: Ştefan Stanciugelu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26099
SECOND GENERATION BIOFUELS AND BIOMASS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 Mother Earth Investments AG, is actively working onthe development 2nd generation bioenergy feedstocks.In this book, Mr. Jansen generously shares hisknowledge in the field, in particular, regarding thechallenges and opportunities in development ofbiomass-derived fuels. This essential guide toinvesting in bioenergy commodities details secondgeneration biofuels from a scientific, technical andeconomic perspective, and discusses their globalenvironmental, political and financial impact.The book is ... Autori: Roland A. Jansen ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26100
THE ROLE OF GREEN CHEMISTRY IN BIOMASS PROCESSING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 3 The book edited by Haibo Xie and NicholasGathergood focuses on one of the most importantscientific issues of the 21 century which is thereplacing fossil fuel with sustainable alternatives suchas biomass. Fossil fuels are conventional rawmaterials for many industrial sectors includingchemical and energy production. Usage of fossil fuelis limited by their availability, price and carbonfootprint. Biomass is a renewable resource globallyavailable, cheaper and carbon sequestering. Step bystep shiftin... Autori: Adrian Catalin Puitel ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26101
EDITORIAL - A SPECIAL ISSUE DEDICATED TO ENVIRONMENTAL LEGISLATION, SAFETY ENGINEERING AND DISASTER MANAGEMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
The ELSEDIMA International Conference on
Environmental Legislation, Safety Engineering and
Disaster Management held its 9th edition in 2012. This
edition was organized by the Babeş-Bolyai University
of Cluj-Napoca - Faculty of Environmental Science and
Engineering, together with the Ministry of
Administration and Interior - General Inspectorate for
Emergency Situations, the Disaster Preparedness and
Prevention Initiative for South Eastern Europe and
S.C. I... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26102
ASSESSING THE ENVIRONMENTAL QUALITY OF THE VENICE LAGOON WATERS USING THE E-QUALITY SOFTWARE TOOL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
According to the Water Frameword Directive the classification of water bodies environmental quality and the achievement of
good status by 2015 are requested for all the European aquatic environment, including transitional waters such as coastal
lagoons. Although progresses have been done and many results have been achieved, several aspects of the WFD implementation
can be further improved and current limitations are more evident for some categories of water bodies such a... Autori: Andrea Critto ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26103
REDUCED UPTAKE OF Cd AND Pb BY Miscanthus sinensis x giganteus CULTIVATED ON POLLUTED SOIL AND ITS USE AS BIOFUEL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The cultivation of Miscanthus sinensis x giganteus on a polluted soil near Copsa Mica Romania has started in 2008. Since then
every March and August the roots and stems have been analyzed, showing a very low amount of heavy metals in the aerial parts
in February, when the harvesting takes place. The combustion properties of the material are similar to those of lignite, but
without sulphur and with low ash amount. Because cultivation of edible plants poses the risk of hea... Autori: Constantin Horia Barbu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26106
FAST CHARACTERIZATION OF PYRIDINE USING ION MOBILITY SPECTROMETRY AND PHOTOIONIZATION DETECTION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Being involved in the synthesis of precursors for amphetamine and amphetamine-like drugs, pyridine (Py) may be also regarded
as a by-product found when these drugs are obtained via the Leuckart method. Also, pyridine is well known as a biomarker of
microorganisms, when those are subjected to pyrolysis before analysis by various instrumental techniques. Consequently, since
Py is not commonly found in the air, its presence as a contaminant at trace levels in a room could ind... Autori: George-Bogdan Ghira ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26109
TRIHALOMETHANES VARIATION IN URINE UNDER DIFFERENT CONDITIONS OF HUMAN EXPOSURE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Known as the most important byproducts of water disinfection with chlorigen chemicals, trihalomethanes (THMs) are
incriminated in causing severe effects upon human health. The exposure pathways that can lead to potentially significant uptake
of THMs include for adults ingestion of tap water and inhalation of THMs in vapor phase resulting from bathing, showering and
washing. The purpose of this paper is the exposure assessment to THMs through ingestion, inhalation and derma... Autori: Anca Elena Gurzău ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26110
STUDY OF HEAVY METAL POLLUTION AND BIOACCUMULATION IN THE BLACK SEA LIVING ENVIRONMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The Black Sea is seriously affected by a large range of pollutants, despite severe laws regarding the protection of sea ecosystems.
Heavy metals are among the most important xenobiotics from the environment, presenting also toxicity for humans.
The studies upon heavy metals have proven that the sediments have the highest concentrations and they can release metals back
to water and this fact represents a risk for the humans and aquatic ecosystem life.
The use of aquatic ... Autori: Oana Jitar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26112
SAFETY LEVELS REACHED BY REINFORCED SOIL STRUCTURES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The paper deals with reinforced soil structures used in critical infrastructures for ecological landfills. During the last 17 years in
Romania 28 such landfills were completed. Romania is however a country where strong earthquakes often occur. About 60% of
its territory feels the seismic actions which combine with the existing ones. During earthquakes in the massive structures of
landfills, huge inertial forces are developing. Due to uncontrolled movements and deformations... Autori: Cristina Feodorov ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26118
AQUATIC PHYTOTOXICITY OF HEAVY METALS: Cu, Cd AND Zn ECOTOXICOLOGICAL TESTS WITH DUCKWEED PLANTS (Lemna minor)
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Heavy metals are common contaminants of freshwaters and they can produce toxic effects on aquatic fauna and flora. The ions of
heavy metals existing in freshwaters are well known as toxicants for the aquatic organisms. Duckweed is an aquatic plant of
small size that floats on fresh water surface of lakes and marshes. The small plants are highly exposed to aquatic pollutants and as
a result they are very sensitive to the toxic effects. As consequence the duckweed plants are... Autori: Vasile Oros ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26122
STUDY ON RECYCLING FEASIBILITY OF ACTIVATED GLASS FROM WEEE EQUIPMENT TREATMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
The main purpose of this paper is to identify, highlight and analyze the recycling possibilities for the activated glass derived from
the treatment of the cathode ray tubes (CRT) waste equipment and to demonstrate the recycling viability, economical and
environment protection efficiency.
A total of 95 pieces of waste electronic equipments (TVs and PC monitors) were processed and a number of five TVs and five
PC monitors from the 95s were analyzed. Significant quantitie... Autori: Antoanela Popovici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26124
EXPLORATORY ANALYSIS OF GAS EMISSIONS FROM NON-COMPLIANT MUNICIPAL LANDFILL USED FOR ENERGETIC EVALUATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
This paper presents a research method for the exploratory analysis of non-compliant municipal waste landfills by determining the
gas composition of emissions. The proposed method has the following stages: establishing municipal landfill surface contour by
topographic measurements; setting measuring points on the deposit surface; setting the number of points needed and their spatial
coordinate; field location of points for making exploratory measurements; making and recordi... Autori: Michaela Bianca Vac Soporan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26127
REMEDIATION OF THE ENVIRONMENTAL DAMAGE PRODUCED ON A SITE BY CONTAMINATION WITH PETROLEUM PRODUCTS. CASE STUDY
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Environmental degradation is today one of the great problems of mankind. Not only the need to exploit, but also the necessity to
protect and preserve the natural environment have led to the adoption of specific rules for the prevention and remediation of
environmental damages, according to EU standards.
Taking into account that any human intervention on the natural and anthropogenic environment can lead to ecological risk
diversification, occurrence of accidental pollut... Autori: Aurica Grec ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26130
RESEARCH ON NOISE POLLUTION IN DENSELY POPULATED URBAN AREAS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 2
Abstract
Being constantly surrounded by sound, in most cases we operate ignoring this environmental noise, but when the noise
intensity increases, it becomes a pollutant, adversely affecting the level of professional performance, leading to fatigue, causing
nervousness or decreasing the quantitative and/or qualitative level of performance. The main objective of this paper is to evaluate
the noise problem in the Strand district of Sibiu and to highlight the negative effects affect... Autori: Valentin Petrescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26131
FUZZY-BASED CLUSTERING OF EPICENTERS AND STRONG EARTHQUAKE-PRONE AREAS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
An original Discrete Perfect Sets (DPS) algorithm was developed and applied to clustering of earthquake epicenters with M≥3.0
in California. The obtained clusters correspond well with the locations of the epicenters of strong earthquakes with M≥6.5.
This fact allows considering them as earthquake-prone areas for the magnitude M≥6.5. We compared the obtained clusters
with the areas recognized in 1976 using Earthquake-Prone Areas (EPA) method. The compariso... Autori: Alexei Gvishiani ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26132
EFFICIENCY OF FILTERS WITH DIFFERENT FILTERING MATERIALS: COMPARATIVE STUDY IN WATER TREATMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
In order to accomplish the water quality standards required for a specific use, the continental surface water is treated through a
sequence of operations and unit processes. The treatment technological flowsheets carry out, partially or totally, the removal of
various pollutants, every treatment step being used for improving one or more qualitative parameter. The treatment scheme is
specific to water source type and water use. One of the basic operations for water treatmen... Autori: Oana Tirtoacă Irimia ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26136
IMPROVING FOOD SECURITY USING GIS DATABASE FOR MECHANIZED RICE FARMS MANAGEMENT IN NORTHWESTERN COTE DIVOIRE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Agriculture is an axis of socio-economic development of the area of Denguele, Cote dIvoire. The evaluation of a project carried
out as part of an agricultural campaign requires the handling of large amounts of heterogeneous data for effective monitoring. The
design of an appropriate management tool is needed to organize and communicate information useful for decision making.
The aim of this work is to provide a useful tool for a better management of information related to... Autori: Arthur Brice Konan-Waidhet ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26137
MACRO AND ULTRA-MICRO SCALE CHANGES OF RAPESEED SEEDLINGS GERMINATED FROM SEEDS EXPOSED TO UVA-VIS RADIATIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Our researches have focused primarily on variations of different biophysical and biochemical effects on vegetal and animal
material at macro, micro, and ultra-micro scale resulted from changes in environmental condition. Growth and spectral parameters
of rapeseed seedlings from seeds exposed to UVA-VIS radiation with a high pressure lamp which emits incoherent continuously
radiation for different time periods were examined 14 days after germination. These studied parameter... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26138
ESSENTIAL TOOLS TO MITIGATE VRANCEA STRONG EARTHQUAKES EFFECTS ON MOLDAVIAN URBAN ENVIRONMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
In a world of uncertainty, the only constant is change and rapid change produces a multitude of diverse facts. Risk is an integral
part of life. While no country in the world is entirely safe, the lack of capacity to limit the impact of hazards remains a major
burden for all countries and while the world has witnessed an exponential increase in human and material losses due to natural
disasters, there is a need to reverse trends in vulnerability to earthquakes. Available d... Autori: Gheorghe Mărmureanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26140
ENVIRONMENTAL RISKS OF WASTEWATER SLUDGE DISPOSAL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Using sludge with dangerous substances content as an agricultural fertilizer can provide risks for humans and all environmental
components. An important risk factor that had to be taken into account is the combination of sludge used as a fertilizer and
agriculture activities that has its own consequences.
In this paper, a risk evaluation for sludge disposal was elaborated. The most important risk factors in the studied case, wastewater
sludge used as an agricultural fer... Autori: Elena Manea ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26141
NEW EXPERIMENTAL PARAMETERS FOR MONITORING ENERGY SPECTRA OF GAMMA-RAY RADIATIONS IN THE ENVIRONMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Large amount of radioactive sources generate gamma rays of various energies and intensities. Gamma-ray spectroscopy is applied
for the quantitative study of the energy spectra of gamma-ray sources. In the present paper, a statistical analysis of the energy
spectra of gamma-ray spectroscopy monitored during 4 years at the Dosimetry and Radioprotection Laboratory from Vasile
Alecsandri University of Bacău is provided. Several new mathematical parameters were calcula... Autori: Marius Stamate ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26144
OPTIMIZATION OF A MIXED CYCLE GAS TURBINE TITAN 130S TYPE OPERATING UNDER PARTIAL LOADS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
The paper presents several aspects regarding the optimization of the operation for a mixed cycle gas turbine, Titan 130S type,
installed at S.C. CET S.A. Bacau, during the warm season. The optimization entails the partial loads operation and has been done
using the multicriterial analysis, taking into consideration the operation restrictions required for this type of gas turbine. The
criteria that regard this analysis are: thermal energy requirements, the global efficiency... Autori: Marius-Ion Stanila ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26145
THE RELEVANCE OF VOLCANIC HAZARD IN ROMANIA: IS THERE ANY?
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
Volcanic hazard is ignored in natural hazard studies in Romania because no active volcano is known on its territory. However, the
2010 eruption of Eyjafjallajkull volcano in Iceland and its consequences on air traffic safety across Europe and the whole
northern hemisphere dramatically demonstrated that volcanic hazard in a certain area, such as a country, is not necessarily related
to the presence of active volcanoes in the same territory. Therefore, target-focused approa... Autori: Alexandru Szakcs ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26146
DEMINERALIZATION OF WATER WITH MIXED-LAYER ION-EXCHANGERS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
This paper develops a procedure whereby breakthrough curves obtained experimentally for ion exchange process in fixed bed ion
mixed exchangers during water demineralization, can be used to characterize quantitatively and optimize the ion exchange
process. In this regard, based on breakthrough curves there were developed statistical models that correlate three important factors
which influence the process (superficial fluid velocity through the layer, changing layer height,... Autori: Iuliana Rogoveanu Radosavlevici ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26147
APPLICATION OF A NEURO-GENETIC TECHNIQUE IN THE OPTIMIZATION OF HEAVY METALS REMOVAL FROM WASTEWATERS FOR ENVIRONMENTAL RISK REDUCTION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 1
Abstract
The reason for carrying out this research is related to the significant risk of heavy metals present in wastewater on the
environment and human health. The removal of heavy metal ions from aqueous solutions was performed in a batch system, using
peat (from Poiana Stampei, Romania) as adsorbent. The efficiency of the process was predicted with high accuracy (correlation
with experimental data more than 0.99) based on a feed-forward neural network with two hidden layers. The... Autori: Gabriel Dan Suditu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26150
RISK ANALYSIS OF HYDRAULIC ENGINEERING CONSTRUCTIONS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractAny hydraulic engineering construction project is a complex open system with large investment, long construction period,complex internal structure and numerous participants, subject to restrictions of time, resource, environment and other conditions.In this paper, the analytic hierarchy process principle and method were used to establish three-layer structure system ofagricultural hydraulic engineering construction, while risks of some agricultural hydraulic engineering construction were... Autori: Shi-Bao Lu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26159
EVALUATION OF URBANIZED ECOLOGICAL ENVIRONMENT QUALITY: A CASE STUDY ON BEIJING CHAOYANG DISTRICT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractThe objective of this study is to evaluate the urbanized ecological environment quality with land use classification system(artificial ecological subsystem, water ecological subsystem and continental ecological subsystem). Three land use type ecosystem combined with characteristics of urban ecological environment conditions (space pattern, environment characteristics, biological characteristics, ecosystem service) established the urban ecological environment quality synthetic evaluation ... Autori: Zhang Chen ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26160
IN-SITU ECOLOGICAL CONSTRUCTION TECHNOLOGY IN DESERT OPEN-PIT MINING AREA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractSurface mining has the most obvious and direct influence on ecology. It has great effects on the vulnerable ecologicalenvironment in Shendong coalmine area. Therefore, its necessary to develop an ecological protection technology whichcontributes to a positive evolution of the open desert mining area. In view of the natural conditions, soil characteristics andfeatures of ecological functions of Majiata open-pit coalmine, technology of in-situ ecological construction of desert open pitcoa... Autori: Yongkang Yang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26164
STUDY OF ECOLOGICAL INHIBITION OF SULFATE-REDUCING BACTERIAL ACTIVITY AND ASSOCIATED POPULATION SUCCESSION IN OILFIELD FLOODING WATER
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractIn the conventional water flooding process of Daqing Oilfield in China, the occurrence of abundant sulfate-reducing bacterialpopulations has substantially affected the industrial production. This study was conducted from the perspective of ecologicalsuppression by operating anaerobic ABR reactors and dosing ecological inhibitors in a continuous-flow experiment. The practicaloperating efficacy was investigated and associated dynamic bacterial population succession was analyzed. Results sh... Autori: Bin-song Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26165
COORDINATION ANALYSIS ON URBANIZATION LEVEL AND LAND USE EFFICIENCY OF XINJIANG BASED ON ESDA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractThis paper analyzes spatial effect of urbanization level, land use efficiency and their coordinative development degree of Xinjiangfrom 1995 to 2010 based on Exploratory Spatial Data Analysis and coordinative development degree model. It was found that the urbanization level and land use efficiency take on apparent spatial agglomeration. The hot spots concentrate mainly in the north slope of Tianshan Mountain and the corridor along South Xinjiang railway, and the cold spots distribute ma... Autori: Yuanjing Qi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26167
DYNAMICS OF LAND USE/ COVER CHANGE IN IRAQI MARSHLANDS USING REMOTE SENSING TECHNIQUES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractThe Iraqi Marshlands, the largest wetland in the Middle East and one of the most outstanding in the world have been lost mainlyas result of drainage and damming. This study analyzed the dynamics of land use/cover change in Iraqi Marshlands Region from1973 to 2011. In this process, we established the land use/cover classification system and remote sensing interpretationcharacteristics. A laminar extraction technique was used in the identification of typical attributes of land use/cover ty... Autori: Hongxia Zhang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26168
IMPACTS OF URBAN LANDSCAPE FUNCTIONAL TYPES ON URBAN GREENSPACE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractStudying the relationship between urban typical landscape functional types and vegetation communities will conduct toinformation on management measures, peoples activities etc. Moreover, this could attain an important role for the research ofother ecological phenomena where human activities are involved. According to the data collected from the said plots, the impactof typical landscape functional types of urban core areas on the plant species was analysed. The results show that indigen... Autori: Yantun Song ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26169
EXPERIMENTAL STUDIES ON THE EFFECTS OF DIFFERENT CARBON SOURCES ON PHOSPHORUS REMOVAL DURING DENITRIFYING PROCESS IN THE PARALLEL A2O-MBR SYSTEM
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractA novel parallel A2O-MBR system was developed in this study based on the theory of denitrification with phosphorus removal.By utilizing the denitrifying phosphorus accumulating bacteria (DPB), the carbon source in the influent could meet the needs ofboth the denitrification and dephosphorization processes. Therefore, the carbon source restriction in conventional A2O processeswas resolved. The proposed system was inoculated with the sludge collected from the secondary settling tank in a m... Autori: Liang Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26170
RISK ASSESSMENT AND CLASSIFICATION FOR DETENTION BASINS BASED ON PARTICLE SWARM OPTIMIZATION - SUPPORT VECTOR REGRESSION (PSO-SVR) IN HUAIHE RIVER BASIN, CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractWith global climate change, flood disasters occur frequently and detention basins are facing greater flooding risk. The flood riskassessment of detention basins becomes an important content for the management of detention basins.In this study, the index system of flood risk assessment of detention basins in Huaihe River Basin is established according to thenatural and social properties of detention basins flood disasters. The flood risk assessment methods are proposed based on support ve... Autori: Junfei Chen ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26172
INVESTIGATION OF THE RECOVERY EFFICIENCY OF METHANE USING VERTICAL WELLS OPERATING IN LANDFILLS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractMethane production and concentration from six cells were investigated in two landfills in China. Long-term monitoring tests wereconducted to evaluate the methane recovery efficiency of active wells. Results showed that the recovery efficiency of a wellsdistribution simulation method was 75.6% to 83.5%, which was much higher than 50.1% to 53.6% when considering the EPAmethod in the EST (Ecological Sludge Evapotranspiration Technology) cover structure. The recovery efficiency of methane in... Autori: Qiang Xue ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26174
EXPERIMENTAL INVESTIGATION ON WET FLUE GAS DESULFURIZATION WITH ELECTROSTATICALLY-ASSISTED TWIN-FLUID ATOMIZATION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractA wet flue gas desulfurization (WFGD) system adopting electrostatically-assited twin-fluid atomization injector was presented.Spatial distributions of the droplet sizes, velocity for different voltages were measured using limewater and SO2 removalefficiency for different voltages and Ca/S ratios were tested using limewater drops. The physical and chemical improvementmechanisms were analyzed using spray characteristics and double film theory. The analysis showed that electrostatically-ass... Autori: Zhentao Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26175
EXPLORING LANDSCAPE DESIGN OF COMMUNITY PARKS FROM ECOLOGY AND RECREATION PERSPECTIVES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 9 AbstractWith the rapid development of the city, people feel increasingly great pressure. Community Parks are playing more significantroles in peoples daily life. Community Parks with the theme of leisure and recreation provide communication platforms forresidents and have enriched their outdoor activities. The parks not only ease peoples life and work pressure, but also improvecommunication among neighbours. An excellent Community Park not only needs to satisfy residents utility requirements,... Autori: Wenting Wu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26176
DYNAMIC SIMULATION OF CHINAS CARBON INTENSITY AND ENERGY INTENSITY EVALUATION FOCUSING ON INDUSTRY AND ENERGY STRUCTURE ADJUSTMENTS BY 2020
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractAlong with the rapid economic development of China, the large amount of carbon dioxide (CO2) emission has become constrainton future sustainable development. The Chinese government has established a series of policies to come with the high CO2-emission resulting from economic development with the target to reduce its carbon intensity (CO2-emissions per unit of grossdomestic product (GDP)) by 40-45%, and to decrease the energy intensity (energy consumption per unit of GDP) by 20% by theye... Autori: Feng Xu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26181
EFFECTS OF ACIDIC AND ALKALINE POLLUTANTS ON THERMAL BEHAVIOUR, MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CLAYS
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThermal behaviour, microstructure and mechanical properties of the clay polluted by acidic and alkaline pollutants wereinvestigated by thermogravimetric/differential thermal analysis (TG-DTA), scanning electronic microscope (SEM), mercuryintrusion experiments, permeability coefficient and unconfined compressive strength tests. The clay polluted by alkaline solutionpresented distinct exothermic peaks at 304-310oC, while its not observed for the one polluted by acidic solution due to thed... Autori: Zhao Ying ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26182
WETLAND ECOSYSTEM SERVICES BASED ON EMERGY ANALYSIS OF LAKE NANSI IN SHANDONG, CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractAdopting the theories and methods of emergy analysis, the annual average emergy input-output of the Lake Nansi wetlandecosystem is calculated. Further, the emergy analysis chart is drawn to evaluate the energy flow and the economic value of thelake. The structure and functions of the Lake Nansi wetland ecosystem are analyzed as a whole. The results showed that theamount of the input solar emergy (including sunlight, wind and rainfall) of the Lake Nansi is 1.111021 1021 solar emergyjoule... Autori: Liang Chunling ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26183
ENVIRONMENTAL HAZARDS OF COAL FIRE AND THEIR PREVENTION IN CHINA
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractCoal fire is a serious hazard in China and also in other coal-producing countries. A lot of studies have been done by manyinvestigators. This paper analyzes the environmental hazards of coal fire and introduces the current prevention methods. Thestudy reveals that coal fires in Northwest China still induce severe hazards. They result in serious air pollution, water pollution,ecological disturbance and geological disasters, which are analyzed in detail. The current coal fire prevention me... Autori: Xuyao Qi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26184
CAN ECO-INNOVATIVE ORIENTATION BE EXPLAINED? AN ATTEMPT TO UNDERSTAND UNCOVERED PATTERNS
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractEco-innovation, understood as innovation clearly focused toward sustainable development, is a key element in the articulation ofboth public policies and actions at the corporate level as it is a determining differentiating aspect. The objective of this work is toanalyze which variables determine that companies go one step further and consider the improvement of the environment as anobjective when developing innovative activities. We analyzed 7682 Spanish companies using data from the Spa... Autori: ngel Peir-Signes ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26187
FORECASTING THE INFLUX OF VISITORS TO STATE PROTECTED WILDERNESS AREAS IN CHILE
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThis study estimates the number of visitors to State Protected Wilderness Areas (SPWAs) in Chile by origin (national andforeign), using annual data from 1986 to 2011. Two linear regression models were used: one to estimate the number of Chileanvisitors and the other for foreign visitors. The model to predict Chilean visitors in 2013-2014 incorporates the GDP per capita inChile, the annual trend in the conditions of international economic crises, while the model to predict the number of f... Autori: Jaime Prez-Kallens ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26189
CORPORATE RESPONSIBILITY IN THE TOURISTIC AREA AND ITS INFLUENCE ON CUSTOMER TRUST
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractToday's society experiences a growing interest in social problems. This leads to the need for companies to assess their impact onthe environment, in its social, environmental and economic dimensions. As a result, organizations are incorporating socialpractices that are used as variables of marketing to attract and retain customers. In this context, the purpose of the present study is twofold; namely to analyze the organizational culture change of the hotels directors because of the requi... Autori: Isabel Mara Rosa Daz ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26190
UNRAVELLING THE RELATION BETWEEN THE ENVIRONMENTAL PROACTIVE ORIENTATION OF FIRMS AND THEIR ECONOMIC PERFORMANCE
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractEnvironmental proactivity is a key research topic as it arises as a value-adding creator and therefore constitutes a competitiveadvantage for companies. In this paper, we classify industrial companies according to their environmental proactivity and thenwe determine whether their economic performance differs in relation to the firms environmental position. We analyzed 132Spanish industrial firms located in the Valencian region and apply quantitative methods to conduct the analysis. The ... Autori: Mara-del-Val Segarra-Oa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26194
DRIVERS OF ECO-INNOVATION IN CHEMICAL INDUSTRY
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractEco-innovation is defined as any form of innovation aiming at significant and demonstrable progress towards the goal ofsustainable development, through reducing impacts on the environment or achieving a more efficient and responsible use ofnatural resources, including energy. The chemical industry is usually considered one of the most polluting industries. Ensuringsafe production, transport and handling of its products, with care for the environment and in full accordance with regulation... Autori: ngela Gonzlez-Moreno ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26196
ON THE ROLE OF ENVIRONMENTAL SUSTAINABILITY IN THE TRANSFORMATION OF TOURISM GROWTH INTO ECONOMIC DEVELOPMENT
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThough at a first sight the potential of tourism was advocated, without any doubt, as an routine tool for improving the welfare ofthe population, in recent years several works have appeared that criticize the universal validity of tourism as a development tool,whose premise is that the relationship is not automatic between the two dimensions, but instead a country must meet certaincharacteristics in order for this link to occur and, therefore, calls into question the solution implemented... Autori: Juan Ignacio Pulido-Fernndez ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26197
IMPROVING THE ENVIRONMENTAL PERFORMANCES OF IRON POWDERS CARBURIZING PROCESS IN A METHANE-BEARING ATMOSPHERE
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractConsidering the advantages of steel surface hardening, when less expensive low- and medium- carbon steels can be surfacehardened without the problems of distortion and cracking associated with the through hardening of thick sections, we developedsome research entailing the increase in environmental performance of iron powders carburizing process using methane as carrier.Apart of studies on optimal working parameters and methods, our research addresses improvements in environmentalperform... Autori: Olimpia Ghermec ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26198
RECONSIDERING ECONOMIC COAL RESOURCES IN DRAFTING ENERGY STRATEGIES. THE CASE OF ROMANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractGlobal energy demand is following a strong upward trend. As highlighted by the latest analyses the overall black coal resourcesare able to satisfy human needs for more than 200 years including the particular case of intensive exploitation. According to theInternational Energy Agency (IEA) renewable energy and natural gas resources have encouraging perspectives for furtherexpansion. Even so coal will continue to cover almost a quarter of primary energy resources needs. The EU is currently... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26199
APPLICATION OF A DECISION SUPPORT SYSTEM TO THE TRANSPORT OF HAZARDOUS MATERIALS
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractThe transport of hazardous substances is an essential economic activity because it represents a quite relevant percentage of thetotal goods transportation. The risk associated to such an activity is fundamentally related to the possibility of an accidenttriggering that may cause negative environmental and public health consequences. A recent example is the Viareggio accident(2009), which involved the blast of tank wagons containing liquefied petroleum gas (LPG) and caused more than thirt... Autori: Vincenzo Torretta ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26200
ANALYSIS OF INTEGRATION OF SOLAR COLLECTOR SYSTEMS INTO DISTRICT HEAT SUPPLY NETWORKS
Environmental Engineering and Management Journal › Vol. 12 › Nr.10 AbstractSupply of heat energy is of the high importance in the northern countries of the Europe. EU energy policy and high prices of theheat energy resources takes a challenge to find any alternative resources for generation of heat energy. Therefore in this paper the integration of renewable energy source - solar energy into the existent heat energy supply system is analyzed as the alternative or additional source of heat energy. The case study of the Girionys boiler-house (at Kaunas district, ... Autori: Jolanta Dvarionienė ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26201
ADSORPTION KINETICS OF REMOVAL OF YELLOW LANASOL DYESTUFF USING GALLINACEOUS FEATHERS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractGallinaceous feathers are an abundant solid waste from the poultry processing industries, which poses disposal problems. Akinetic study dealing with the adsorption process of wool reactive dye, Yellow Lanasol 4G (CI Reactive Yellow 39), ongallinaceous (Gallus gallus, Cobb 500) feathers was carried out. The main research goals of this work were to evaluate theviability of using this waste as adsorbent and to study the kinetics of the adsorption process, using a synthetic effluent. Thechar... Autori: Snia Adriana Figueiredo ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26203
STUDENTS ENTREPRENEURIAL COMPETENCIES AND ORIENTATION: CURRENT STATUS AND PERSPECTIVES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractCurrently one can witness a revolutionary change in teaching/learning strategies and an evolution which should reconsider therelation between educational institutions, teaching staff, and students, on the one hand, and economic agents, public or privatecompanies, firms, and NGOs, on the other. Despite the large amount of research focusing on the entrepreneurial phenomenon,there has been limited focus on the effect of education upon enterprise performance in terms of venture creation and ... Autori: Gabriela Boldureanu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26204
EFFECTS OF NATURAL AND MODIFIED MONTMORILLONITE ON PLANT AVAILABILITY OF Cd(II) AND Pb(II) IN POLLUTED SOILS
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractSimultaneous uptake of Cd(II) and Pb(II) by corn in two artificially contaminated soils (sandy and sandy loam) amended withtwo doses of natural (NM) and modified (MM) montmorillonite were investigated in a pot experiment under greenhouseconditions. Results showed that the addition of NM and MM to sandy loam soils didnt have significant effect on the uptake ofCd(II) by roots, then is translocated to the aerial tissues. On the contrary, uptake of Cd(II) by shoots was increased in potscont... Autori: Hadis Hosseini ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26205
ADSORPTION OF LEAD AND COPPER FROM AQUEOUS SOLUTION USING UNMODIFIED WHEAT STRAW
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractPotential of unmodified Wheat Straw as an adsorbent for the removal of lead and copper was studied. Effect of pH, adsorbentdose, contact time and initial metal concentration on the removal of the metal ions were also investigated. Maximum removal oflead was found to be 43.55% by wheat straw under optimum conditions (pH=5, adsorbent dose=16g/L, contact time= 240minutes, metal concentration=100 mg/L). Unmodified Wheat straw removed 0.381 mg/g of lead. While 56.36% copper removalwas achieve... Autori: Mehwish Anis ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26209
KINETICS AND EQUILIBRIUM OF COPPER AND CHROMIUM IONS REMOVAL FROM AQUEOUS SOLUTIONS USING SAWDUST
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractThis work presents the removal of heavy metal ions (Cu2+ and Cr3+) from aqueous solutions with the use of pine (Pinus silvestris) sawdust. The experiments were conducted in a batch mode. Kinetic and equilibrium parameters of biosorption which are best described by pseudo-second order and Langmuir models were determined. The maximum sorption capacity at pH 5 and a temperature of 20C for pine sawdust amounted to 21.47 mg/g for Cu2+ ions and 39.63 mg/g for Cr3+ ions, respectively.Therm... Autori: Anna Witek-Krowiak ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26210
REMOVAL OF ACID BLACK DYE BY PUMICE STONE AS A LOW COST ADSORBENT: KINETIC, THERMODYNAMIC AND EQUILIBRIUM STUDIES
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractThe removal of Acid Black 1 dye was investigated by acid treated pumice stone as a low cost adsorbent, since acidicmodifications were expected to improve the sorption capacity. The main components of the considered adsorbent were SiO2 andAl2O3 and acid treated pumice shows irregular structure. The effect of various parameters such as the initial dye concentration,the contact time, the temperature and the pH were studied. An increase of the contact time, the initial dye concentration or a... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26211
ENHANCED REMOVAL OF FECAL BACTERIA BY ZINC-MODIFIED ZEOLITE IN AN INTERMITTENT MEDIA INFILTRATION SYSTEM
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractThe reuse of a wastewater treatment system was investigated using intermittent media infiltration (IMI) to evaluate the fecalcoliform (FC) removal efficiency with natural zeolite containing clinoptilolite from the state of San Luis Potos, Mexico and itszinc-modified form (Zeo-Zn). The municipal wastewater, which was from Saltillo, Coahuila, Mexico, was treated for FC analysisfor four months. The physicochemical properties of zeolite were analyzed, and their behavior as filter media for ... Autori: Sasirot Khamkure ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26212
LEACHING PROPERTIES OF LEAD PASTE IN SPENT LEAD-ACID BATTERY WITH A HYDROMETALLURGICAL PROCESS AT ROOM TEMPERATURE
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractIn this study, as part of developing a green recycling process of spent lead-acid battery that can avoid both smelting and electrowinning, leaching agent citric acid and other additives (such as sodium citrate and hydrogen peroxide) in aqueous media were reacted with spent lead-acid battery paste. PbO, PbO2 and PbSO4, which are the three main components in a spent lead-acid battery paste, were leached to form lead citrate precursor which was crystallized and then separated from the solut... Autori: Xinfeng Zhu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26215
FAST AND ECONOMICALLY VIABLE REMOVAL OF A CATIONIC DYE FROM AQUEOUS SOLUTIONS: KINETIC AND EQUILIBRIUM MODELLING
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractAdsorption of a cationic dye, methylene blue, from aqueous solutions by using sawdust (without any modification) by batchadsorbers was investigated. The surface characterization of the saw dust was carried out by Fourier transform infrared (FTIR) andscanning electron microscopy (SEM) and pHzpc of the surface was also determined. Effects of different parameters such ascontact time and initial concentration, temperature and pH on the process of removal were studied. The process of removal ... Autori: Sushmita Banerjee ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26216
TECHNO-ECONOMICAL EVALUATION OF POST- AND PRE- COMBUSTION CARBON DIOXIDE CAPTURE METHODS APPLIED FOR AN IGCC POWER GENERATION PLANT
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractGlobal warming is happening due to increasing level of carbon dioxide and other greenhouse gases into the atmosphere. In orderto reduce this rising level of CO2 emitted by human activities, carbon capture and storage technologies are being developed.The present paper investigates and compares, from a techno-economical point of view, two of the most used conceptual methods(post- and pre- combustion) for CO2 capture generated from the fossil fuel power generation sector. For post-combustio... Autori: Anamaria Padurean ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26217
STUDY ON THE RELATIONSHIP OF VISIBILITY AND AEROSOL CHARACTERISTICS IN TAIPEI
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractIn an urban environment, visibility strongly reflects human safety and welfare. Generally, visibility is dependent on particlescattering and absorption. The former is influenced by light wavelength, atmospheric gaseous species and particle characteristics,especially number and size distribution. Therefore, it is necessary to establish the relationship between visibility and particlecharacteristics. Furthermore, it is important to understand the formation mechanism of secondary aerosols. ... Autori: Chih-Ming Ma ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26221
DETERMINING THE EFFECTIVE WIDTH OF RIPARIAN BUFFERS IN KOREAN WATERSHEDS USING THE SWAT MODEL
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractRiparian buffers play an important role in improving water quality, providing wildlife habitat, and reducing suspended sedimentsand pollutants entering the water body. The efficiency of pollutant reduction by a riparian buffer is greatly influenced by thewidth of the riparian buffer. In this study, the Soil and Water Assessment Tool (SWAT) model was applied to the YudeungStream watershed, Daejeon Stream watershed, and Gap Stream watershed to determine the most effective width of the ripa... Autori: Jongpil Moon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26223
GREEN TECHNOLOGY FOR 6-AMINOPENICILLANIC ACID PRODUCTION - STUDY OF PENICILLIN G HYDROLYSIS IN A BIOREACTOR WITH MOBILE BED OF IMMOBILIZED PENICILLIN AMIDASE UNDER SUBSTRATE INHIBITION
Environmental Engineering and Management Journal › Vol. 12 › Nr. 11 AbstractThe efficiency of enzymatic hydrolysis of Penicillin G to 6-Aminopenicillanic acid under substrate inhibition has been analyzedfor a bioreactor with mobile bed of immobilized penicillin amidase. The results indicated that the optimum values of temperatureand pH remained the same as for homogeneous hydrolysis using free enzyme. The inhibitory effect induced at higher PenicillinG amount in liquid phase was attenuated by increasing the size of the biocatalyst particles. For this reason, at ... Autori: Ramona Mihaela Matran ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26224
AN ECO SUSTAINABLE TECHNIQUE TO REDUCE CADMIUM AVAILABILITY TO AMARANTHUS CAUDATUS GROWN UNDER AGRICULTURAL WASTE AND FERTILISER AMENDED SOIL: GROWTH AND PHYSIOLOGICAL RESPONSE
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractPresent study deals with a technology that reduces the cadmium(Cd) availability to the leafy vegetable Amaranthus caudatusfrom Cd contaminated soil (6 μg Cd g-1soil), amended with farmyard manure FYM, FYM+NPK and agricultural wastes (ricehusk; RH and saw dust; SD) at different doses (0.5 %, 2 %, 5 % and 10 %). Among all the doses 5 % was found to the best foreach amendment showing maximum reduction in phytoavailability of Cd hence better vegetable yield. At this dose the reductionin... Autori: Anita Singh ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26228
MANAGEMENT OF STORK ACTIVITIES IN EQUIPMENT OF ELECTRIC DISTRIBUTION POWER NETWORKS
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractWhite Storks (Ciconia ciconia L.) may cause severe outages in electric networks leading to poor power quality service.Furthermore, bird fatalities often occur as consequence of electrocution. Therefore, equipment damages, economical losses ofindustry and electric corporations and bird deaths persuaded the main electric distribution operator and the regulator toimplement management programs of storks activities in the vicinity of electric distribution substructure to minimize storkfatali... Autori: Pedro M.M. Arajo ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26229
AN EVALUATION OF WILDLIFE-VEHICLE COLLISION PATTERN AND ASSOCIATED MITIGATION STRATEGIES IN LITHUANIA
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractWildlife-vehicle collisions are only a human safety problem, but road mortality can significantly impact some wildlifepopulations. Metal wire mesh fences are one of in most popular preventative means to reduce number of wildlife-vehicleaccidents in Lithuania. The fencing of this highway started in 2006 and continued in 2008 and 2009. The aim of this presentationis to give the investigation results on the impact of wildlife-vehicle accident prevention installations, e.g. underpasses and f... Autori: Vytautas Okinis ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26230
COMPARISON OF BIOSORPTION EFFICIENCY OF FREE AND IMMOBILIZED FUNGAL CONSORTIUM FOR Cd (II) REMOVAL FROM AQUEOUS SOLUTION UNDER TWO AERATION SYSTEMS
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractCd (II) removal efficiency of free and immobilized fungal consortia of 48-h-old Mucor sp. HI33 + 72-h-old Gliocladium virideAI003 + 72-h-old Aspergillus niger AH09 from aqueous solutions were tested under different aeration systems. Cd (II) removalby free cells under air bubble system aeration was higher (99.91%) than under shaker system aeration. Cd (II) removal byimmobilized fungal consortia was higher (83.18 %) under shaker system aeration and lower in air bubble system aerationrespec... Autori: Arifa Tahir ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26232
PHOSPHATE REMOVAL BY ELECTROCOAGULATION PROCESS: OPTIMIZATION BY RESPONSE SURFACE METHODOLOGY METHOD
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractIn this research, response surface methodology (RSM) was applied to model the effect of main operational variables includinginitial pH, initial phosphate concentration, current density and reaction time on phosphate removal by electrocoagulation. It wasfound that the decrease of initial pH and initial phosphate concentration, and the increase of current density and reaction time are beneficial for improving phosphate removal efficiency. According to the ANOVA (analysis of variance) resul... Autori: Mohsen Behbahani ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26237
SOURCES AND OCCURRENCE OF NON-PESTICIDE PERSISTENT ORGANIC POLLUTANTS (POPs). THE CASE STUDY OF TAIWAN
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractNon-pesticide persistent organic pollutants (POPs) under the Stockholm Convention include polychlorinated biphenyls (PCBs),polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/PCDFs), polybrominated diphenyl ethers(PBDEs), polybromobiphenyls (PBBs) and perfluorooctane sulfonate (PFOS), which are industrial chemicals and/orunintentional byproducts that remain in the environment, bioaccumulate in human and animal tissue through the food chain, andhave adverse effects ... Autori: Wen-Tien Tsai ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26239
MONITORING THE EFFECTS OF ULTRAVIOLET AND VISIBLE LIGHT ON Rb AND VITAMIN A IN MILK
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractIn this study, changes induced in milk processed at ultra high temperature (UHT) were investigated following exposure to UVand white-light, by employing fluorescence spectroscopy. Two important indicators, namely Riboflavin (Rb) and vitamin A,were monitored to evaluate the light-induced damage in milk. It was noticed that the photo-degradation of Rb is due to thephotochemical decomposition and photosensitization. Moreover, it was found that the wavelength of the exposure light has agreat... Autori: Maria Iliut ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26241
OPTIMIZATION OF PROCESS FOR TOTAL RECOVERY OF ALUMINUM FROM SMELTING SLAG 1. REMOVAL OF SOLUBLE SALTS
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractWashing black aluminum (Al) slag to obtain soluble salts is an important stage of the smelting slag treatment at technologicalprocess. This process is used to recover Al as a coagulant for water purification. This research aims at establishing the optimalconditions for washing (e.g. temperature (T), solid: liquid ratio (S : L), time, the recirculation waters in the system). The goal ofresearch was to determine: a) the removal with maximum efficiency of the soluble salts from black Al sla... Autori: Romanita Teodorescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26243
ENVIRONMENTALLY FRIENDLY FORMULATIONS OF 2,6-DICHLOROBENZONITRILE PESTICIDE INTERCALATED INTO CALCINED LAYERED DOUBLE HYDROXIDES
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractThe intercalation of 2,6-dichlorobenzonitrile (DBN) into the NiMgAlLDH, CuMgAlLDH and MgAlLDH layered doublehydroxides was carried out using the calcination-rehydration reaction using NiMgAl, CuMgAl and MgAl oxide precursors,obtained by calcination at 550oC. X-ray diffraction (XRD), elemental analysis, infrared spectroscopy (FTIR) andthermogravimetric analysis (TG-DTG) confirmed that DBN molecules were successfully intercalated into the interlayer spaces ofLDHs. The resulting solid produ... Autori: Mihaela Silion ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26244
EXPLOITATION OF AN ANAEROBIC UP-FLOW COLUMN REACTOR (AUFCR) USING ACTIVATED SLUDGE BIOMASS FOR THE DECOLORIZATION OF DYES AND COD REDUCTION FROM TEXTILE WASTEWATER
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractThe aims of this study were to investigate the performance of anaerobic up-flow column reactor (AUFCR) and immobilizedactivated sludge biomass (ASB) potential for the adsorption of dye drimarene Blue-K2RL (Db-K2RL) and removal of chemicaloxygen demand (COD) from textile wastewater (TWW). AUFCR with ASB at flow rate of 50 mL h-1 and hydraulic retentiontime (HRT) of 10 h showed 95% dye adsorption at pH 4 and 87% COD reduction at pH 6 while non-activated sludge (NAS)showed only 60% of adsor... Autori: Anwar Ahmad ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26246
OIL SPILL RESPONSE AND PREPAREDNESS SYSTEM BASED ON CASE - BASED REASONING - DEMONSTRATED USING A HYPOTHETICAL CASE
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractFor the purpose of coping with oil spills successfully, it is important to establish effective response and preparedness plans. Inprevious study, we proposed the use of Case-Based Reasoning (CBR) technology to develop environmental emergency responseand preparedness plans. In this paper, we present how to develop a CBR-Oil Spill Response and Preparedness System (CBROSRPS). In particular, the Frame method is employed to do case representation, the modified Heterogeneous Euclidean-Overlap ... Autori: Zhenliang Liao ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26247
UTILIZATION OF AGROINDUSTRIAL WASTE AND DAIRY WASTE IN SOLID STATE PRODUCTION OF LACTIC ACID
Environmental Engineering and Management Journal › Vol. 12 › Nr.12 AbstractThe abundant availability of solid agroindustrial waste, sugarcane bagasse from sugar mills and juice extraction units, can bepotentially beneficial for the production of fermentation based biochemicals, paper boards and power. However, its role incausing bagassosis, an acute respiratory disease among the personnel handling large dry deposits has also been detected. Disposal of liquid waste whey from dairy industries poses a formidable threat to the aquatic ecosystem due to high BOD and ... Autori: Manoj K. Ghosh ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26248
OPTIMIZATION OF PROCESS FOR TOTAL RECOVERY OF ALUMINUM FROM SMELTING SLAG 2. REMOVAL OF ALUMINUM SULFATE
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThis paper continues the previous investigations regarding the technology for the Aluminum (Al) recovery as Al sulfate fromblack Al slag. Leaching is the next compulsory step in the Al extraction process. The paper studies the influence of mothersolutions (MS) recirculation resulted from the process within the system over the quality of Al sulfate and the siliceous residue(R) and, the aluminum nitride (AlN) hydrolyses in the leaching process. The optimum parameters determined are: *the ... Autori: Romanita Teodorescu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26250
STUDIES ON BUILDING CERAMICS MANUFACTURING BY INCORPORATING DRIED SLUDGE
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThe paper analyses the opportunity of recycling sewage sludge in the manufacturing of ceramic building materials. Wastewatertreatment plants (WWTP) produce annually a great volume of sludge and its processing become more difficult. On the otherhand, there is an increased need to develop new alternatives beyond the already known methods. The use of WWTP sludge asraw material for the production of bricks may become an interesting alternative, both from an industrial and environmental point... Autori: Anna-Maria Szőke ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26251
REMOVAL OF BIOPOLYMERS IN DISTILLERY SPENTWASH USING IRIDIUM OXIDE COATED TITANIUM MESH ANODE AND POLYALUMINUM CHLORIDE: OPTIMIZATION AND SEQUENTIAL STUDIES
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThe purpose of the undertaken research work is to degrade the biopolymeric pigments present in the distillery spentwash. This isdone by direct electro-oxidation using iridium oxide coated titanium mesh as catalytic anode. The effects of current intensity,dilution, pH and time of electro-oxidation were studied. The combined effects were analyzed using Box-Behnken design foroptimization and statistical analysis. The rate constant for first order electrochemical kinetics relating the rate c... Autori: R. Krishna Prasad ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26253
COMPUTER-AIDED IMAGE ANALYSIS AND EPR CHARACTERIZATION OF TRANSFORMED ASBESTOS CONTAINING WASTES
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractInvestigations on thermochemical transformation of asbestos fibers followed by computer aided image analysis are presented.Asbestos Containing Wastes (ACW), notably asbestos-cement, were characterized before and after microwave heating withadditives aimed at reacting with and transforming asbestos fibers. Microprobe analysis helped determine the chemicalcompositions. X ray diffraction (XRD) was used to confirm decomposition of asbestos fibers during microwave heating. Electronparamagneti... Autori: Yan Yvon ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26256
LONG-TERM TREATMENT EFFICIENCY OF A HORIZONTAL SUBSURFACE FLOW CONSTRUCTED WETLAND AT JIMLKOV, CZECH REPUBLIC
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThe present study is aimed at a long-term treatment performance of a constructed wetland with horizontal subsurface flow atJimlkov, Czech Republic. The system was put in operation in 1993 and the treatment performance is evaluated for the period1998-2009 due to non-existence of results from the beginning of operation. The parameters of concern were BOD5 (biochemicaloxygen demand), COD (chemical oxygen demand), TSS (total suspended solids), NH4-N (ammonia-N) and TP (totalphosphorus). A t... Autori: ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26258
ENERGY EFFICIENCY LANDSCAPES: AN ENERGY EFFICIENCY VISUAL TOOL FOR SUPPORTING DECISION MAKING IN BUILDINGS
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractEnergy efficiency in buildings is a key issue in achieving sustainable development. Many decision support methodologies andtools have been developed, mainly based on energy consumption measurements or simulations and rules designed by experts toconstruct Building Energy Management Systems. An extension of this information from raw consumptions to energy efficiency isrequired. In addition, a visual depiction of this information with temporal and spatial resolution, applied to the differen... Autori: Mark Richard Wilby ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26259
OPTIMIZATION OF ANAEROBIC BAFFLED REACTOR (ABR) USING ARTIFICIAL NEURAL NETWORK IN MUNICIPAL WASTEWATER TREATMENT
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThis study is focused on simulating and optimizing design and configuration of anaerobic baffled reactor (ABR) by means ofartificial neural network (ANN). This approach is aimed to assess an efficient ABR performance in various operational conditionstreating municipal wastewater. For this purpose, to analyze comprehensively on a base of experimental data, the system isoperated in two pilots of 48 liters net volume made of 8 compartments. In 7 months, more than 130 sets of data are obtain... Autori: Gagik Badalians Gholikandi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26260
APPLICATION OF FOURIER TRANSFORM INFRARED SPECTROSCOPY FOR THE CHARACTERIZATION OF SUSTAINABLE COSMETICS AND INGREDIENTS WITH ANTIOXIDANT POTENTIAL
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThe aim of this study is to elaborate a survey on the efficiency of three anti-aging cosmetic formulations by applying FourierTransform Infrared Spectroscopy (FTIR) with Attenuated Total Reflection (ATR) in order to characterize and identify thespecific recognition markers of the active ingredients. FTIR (ATR) spectrometry in specific regions was applied also to theingredients used in these products, depending on their role in the specific cream. Comparing the different composition of th... Autori: Anca Maria Juncan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26261
POLLUTION WITH METALS (As, Sb, Hg, Zn) IN AGRICULTURAL SOIL LOCATED CLOSE TO ZARSHURAN GOLD MINE, IRAN
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractZarshuran As-Au deposit is the major ore deposit in northwest of Iran. Having been exposed to weathering, the accumulatedmining waste is consumed to deteriorate regional soil and water quality. Accordingly, 11 composite surface soil samples werecollected to evaluate the metallic pollution. Mean concentration of elements As, Sb, Hg and Zn were measured to be 234.9, 19.6,24.2 and 476.7 ppm, respectively. In comparison with mean earth crust and local guidelines for agricultural soil, the sa... Autori: Abdolreza Karbassi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26262
URBAN ENERGY SAVING AND CARBON REDUCTION POTENTIAL OF NEW-TYPES OF BUILDING MATERIALS BY RECYCLING COAL MINING WASTES
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThe construction industry is one of the main sectors of energy consumption and carbon emissions in China. The new-types ofbuilding materials can be produced by recycling industrial solid wastes which is an effective solution to development of greenbuilding materials and abatement of environmental emissions. In this paper, new-types of bricks made of fly ash (residuesgenerated in coal combustion) and coal gangue (a kind of solid wastes generated in coal mining and coal production) and the... Autori: Haitao Zhang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26265
AN APPROACH ON ATTACHED GROWTH PROCESS FOR DOMESTIC WASTEWATER TREATMENT
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThe applications of biofilm treatment technologies for domestic wastewater are being increased in many parts of the world. Theaim of the study is to assess a compacted aerobic attached growth fix-film unit (termed Bio-cache) for treatment of small volumedomestic wastewater. The system consists of the miniature plastic packing matrix, which provides a large surface area of 300m2/m3, so as to maintain the high rate growth of viable organisms responsible for organic degradation. The study o... Autori: Alireza Valipour ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26266
STUDY ON THE REMOVAL CHARACTERISTIC OF ACID VIOLET DYE FROM SYNTHETIC WASTEWATER USING A NOVEL RHA/PFA/CFA SORBENT
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractA novel RHA/PFA/CFA sorbent was developed by sol-gel method using three types of ashes, i.e. rice husk ash (RHA), palm oilfuel ash (PFA) and coal fly ash. From surface analysis of selected RHA/PFA/CFA sorbents, the spent sorbent had more compactstructures covered by irregular rough surface and the specific structure of raw RHA, PFA, and CFA were no longer visible. Inaddition, lower specific surface area was obtained for spent RHA/PFA/CFA sorbent. Batch studies were performed to evaluatet... Autori: Irvan Dahlan ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26272
REMOVAL OF FLUORIDE IONS BY ION EXCHANGE RESIN: KINETIC AND EQUILIBRIUM STUDIES
Environmental Engineering and Management Journal › Vol. 13 › Nr. 1 AbstractThe extent of the problem of the excessive fluoride in drinking water remains an important health issue. In the present work,strong-base anion resins were investigated to assess their sorptive removal capacity of fluoride from water. It was found that theremoval of fluoride was high at natural pH (7) and was improved for increasing contact time and adsorbent dosage. Themaximum sorption of the resin was 13.7 mg/g according to the Langmuir model, namely higher than the values reported in t... Autori: Mohammad Taghi Samadi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26273
ADSORPTIVE REMOVAL OF HAZARDOUS METHYLENE BLUE BY FRUIT SHELL OF Cocos nucifera
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractIn this work, fruit shell of Cocos nucifera (FSCN) treated with H3PO4 has been tested as a low cost adsorbent for the removal of methylene blue (MB) from aqueous solution in batch and column process. The adsorption of MB onto FSCN was affected by the initial solution pH, dye concentration, temperature, column internal diameter and adsorbent dose. The adsorption equilibrium data was fitted well to the Langmuir model and the maximum adsorption capacity was found to be 20.74 mg/g at 40C. K... Autori: Pijush Kanti Mondal, Rais Ahmad, Rajeev Kumar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26274
TREATMENT OF NYLON PRODUCTION WASTEWATER BY BIOLOGICAL ANAEROBIC FILTER IN COMBINATION WITH A/O PROCESS A CASE STUDY
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractThis paper presents the full-scale treatment of nylon production wastewater in a wastewater treatment plant in Henan province, Central China. In this case, a 9600 m3/d capacity wastewater treatment plant was installed to treat the wastewater generated from the production of nylon-66 salt, based on the biological anaerobic filter (BAnF) combined with an anoxic/oxic (A/O) process. The performance of the biological combined system was monitored over a 75-day period. The results revealed tha... Autori: Chunlian Xu, Haiming Huang, Jiankun Dai, Jianrong Qi, Qianwu Song, Shaowei Wu, Wenjun Wang ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26276
A NOVEL TECHNOLOGY FOR SUSTAINABLE OIL SPILLS CONTROL
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractOil spills inflict serious pollution on the environment. Numerous environmental rules and regulations have been made to improve oil spill response and cleanup performance. However, current oil spill control technologies have failed to ensure environmental safety and ecosystem integrity. Cleanup efforts often lead to more environmental hazards in one way or the other causing public outcry for alternate energy sources. Since hydrocarbon driven energy demand is expected to rise in the fores... Autori: Abdul Aziz Al-Majed, Abdulrauf Rasheed Adebayo, Mohammed Enamul Hossain ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26278
SOURCE CONTROL TECHNOLOGY OF ENVIRONMENTAL POLLUTION FOR OFFSHORE DRILLING
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractOceans have been proved to be an important resource due to their abundant reserves in oil and gas. However, because of the extent of oil exploration and development in recent years, the marine ecological environment has been increasingly affected. At present, the control and treatment of environmental pollution from offshore drilling both at home and abroad have focused on end-treatment after problems have already emerged. Nevertheless, preventative measures and appropriate control links... Autori: Guancheng Jiang, Guangquan Liu, Hao Deng, Rongsha Wang, Shuixiang Xie, Yu Xu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26279
MECHANISM OF Cr(VI) BIOACCUMULATION BY Phanerochaete chrysosporium
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractThe aim of the present study was to investigate the mechanism of Cr(VI) bioaccumulation by livingand active Phanerochaete chrysosporium. Fungal growth was inhibited beyond 10 mg L-1 Cr(VI) concentration thereby reducing the chromium bioaccumulation capacity. The optimum pH was found to be 6 for the growth and bioaccumulation of Cr(VI) by P. chrysosporium. Bioaccumulation efficiency decreased from 81.47% to 23.82% when Cr(VI) concentration was increased from 10 to 40 mg L-1. A Fourier tra... Autori: Kaustubha Mohanty, Somasundaram Murugavelh ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26280
INFLUENCE OF OPERATIONAL PARAMETERS ON ELECTROCOAGULATION PROCESS IN PULP AND PAPER MILL EFFLUENT TREATMENT
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractIn the present work an optimized experimental condition has been developed for the treatment of pulp and paper mill wastewater using an electrocoagulation process. The removal efficiency of 85 % COD and 94 % of color with a good repeatability of results (RSD <3%) has been achieved under the optimal experimental conditions of pH-7, treatment time of 2 h and a current density of 15 A/m2. In this study, wastewater from paper mill has been used and thus, high efficacy of removing the poll... Autori: Chhaya Sharma, Rajni Sharma, Satish Kumar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26281
OPTIMIZATION OF AVIATION EMISSIONS THROUGH ALTERNATIVE ROUTING STRATEGIES
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractThe significant increase in air transportation expected over the coming decades, combined with the initiation of the emissions trading system (EU-ETS) within European aviation, is increasing the requirement for airlines to find new levels of efficiency in their operating practices leading to reduced emission levels. Technological developments are expected to lead to substantial reductions in fuel burn and emissions over the long term, including aircraft design optimization and the use of... Autori: Athanasios J. Kolios, Stuart Howe ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26282
SUSTAINABILITY IN TRADITIONAL HANDLOOMS
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractThe handloom sector constitutes a distinct feature of the rich cultural heritage of India and plays a vital role in the economy and cultural identity of the country. It is an ancient industry and is source of livelihood for many villages in India. Its spread varies in style, practice and scale throughout the country - in certain regions it is has a proficient industry, while in others its establishment is localized, where it is a family-based activity. While, hand-woven fabrics are well-... Autori: Monto Mani, Nallaval Chinnaswamy Balaji ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26285
PERFORMANCE OF AN ACTIVE SOLAR STILL COUPLED TO EVACUATED TUBE COLLECTOR
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractIn this study, the experimental performance of a single slope solar still coupled with an evacuated tube collector was investigated. A single slope passive solar still (PSS) and single slope active solar still (ASS) integrated with an evacuated tube collector were fabricated with an area of 1 m2 and tested in the composite climate of Coimbatore, Tamilnadu, India, (Latitude: 11N; Longitude: 77E and an altitude of 409 m above sea level). High water temperatures in the range of 84.2... Autori: Karuppusamy Sampathkumar, Palanisamy Senthilkumar ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26286
STUDY OF Cd (II) AND Cr (VI) BIOSORPTION BY MESOCARPS OF ORANGE AND SOUR ORANGE FROM AQUEOUS SOLUTIONS
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractThe objectives of this study were to investigate of cadmium and chromium adsorption from aqueous solutions by using orange (Citrus sinensis var Tampson) and sour orange (Citrus aurantium) mesocarp. The chemometric approach was applied for the optimization of removal percent of Cd2+ and Cr6+. To optimize Cd2+ and Cr6+ removal percent, the effect of four experimental parameters on removal percent was investigated by means of multivariate analysis. The considered factors were Cd2+ and Cr6+ ... Autori: Maryam Bagheri Ardebilian, Mohammad Ali Zazouli, Pouneh Ebrahimi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26287
SORPTION OF HEXAVALENT CHROMIUM ION ONTO A STRONG BASIC ANION EXCHANGER: EQUILIBRIUM ISOTHERMS AND KINETIC STUDIES
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractHexavalent chromium can contaminate drinking water resources and should therefore be removed from industrial waste effluents. The use of ion exchange resin was examined in batch tests to remove Cr (VI) from acidic solution by Amberlite IRA 410. Equilibrium data were analyzed and modelled using Freundlich and Langmuir adsorption isotherms and the results showed that the adsorption behaviour of Cr (VI) could be accurately described by means of a Langmuir model. The monolayer adsorption cap... Autori: Abdeltif Amrane, Aicha Bensmaili, Malika Chabani, Yasmine Ait Ouaissa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26289
REMOVAL OF As(III) AND As(V) FROM AQUEOUS SOLUTION USING MODIFIED SOLID WASTE VEGETABLE OIL INDUSTRY AS A NATURAL ADSORBENT
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractThis paper presents the results of the removal of arsenite and arsenate ions from an aqueous solution using Fenton modified solid waste vegetable oil industry (SWVOI). Several factors (such as pH, contact time and Fe2+/H2O2 ratio, initial arsenic ion concentration and adsorbent concentration) that affect the arsenic ion adsorption on the SWVOI adsorbent material were investigated. The sorption characteristics of the adsorbent material before modification were also studied and compared wi... Autori: Hoda Amiri, Mehdi Ahmadi, Nemat Jaafarzadeh, Susana Silva Martnez ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26290
CHINAS WETLANDS CONSERVATION: ACHIEVEMENTS IN THE ELEVENTH 5-YEAR PLAN (2006-2010) AND CHALLENGES IN THE TWELFTH 5-YEAR PLAN (2011-2015)
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractChinas natural wetlands occupy 3.77% of the land and provide 54.9% of Chinas ecosystem services. Healthy natural wetland ecosystems play an important role in the sustainable development of China, which was realized by the Chinese government in the early 1970s. In the past 5 years, China has made great efforts in wetlands conservation, which is signified by the funding of billions of dollars to restore degraded wetlands, the policy to return reclaimed croplands to wetlands, the specific... Autori: Hongli Song, Huanhuan Jiang, Linus Zhang, Wanlong Sun, Wenguang Sun, Xiaojie Mou, Zhigao Sun ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26291
ADSORPTION OF A BASIC DYE ONTO ESMEGEL CLAY
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractThis study focus on the possibility of removing the basic textile dye Astrazon Blue FGGL 300% 03, from an aqueous solution, using Esmegel clay as adsorbent. The characterization of the adsorbent included the distribution of particle size, physical textural properties, chemical composition and determination of the point of zero charge. The equilibrium isotherms were determined at 20 and 30 C, pH at 6.0 and 7.5 and adjusted to the Langmuir and Freundlich models, having the latter led to b... Autori: Chia-Yau Cheng, Paula M.S.S. Lus, Rui A. R. Boaventura ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26292
DESIGN CRITERIA FOR INCREASING BUILDING FLEXIBILITY: DYNAMICS AND PROSPECTS
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractOne of the key issues in building construction is environmental sustainability. Conventional methods of construction do not consider the in-built capacity to adapt over time according to new technical requirements and environmental consequences. Therefore, any change or renovation of the building will result in significant cost and lost use during its lifecycle. Designing flexible buildings for easy change and adaptation will assist the main concept of sustainability by reducing material... Autori: M. Fauzi M. Zain, Maslina Jamil, Nasibeh Sadafi ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26293
MINIMIZATION OF CHEMICAL RISK BY USING RECOVERED ALUMINIUM FROM METALLURGICAL SLAG AS COAGULANT IN WASTEWATER TREATMENT
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractSecondary aluminium production inherently generates significant amounts of slag of variate composition and including dangerous compounds. Consequently, a care treatment of the resulted slag is imperatively necessary for preventing the environment pollution and for recovering valuable materials even if present in low amounts. The aluminium recovering procedure is based on a chemical and hydrometallurgical slag treatment, leading to the technical grade aluminium sulphate (AS), possible to ... Autori: Carmen Tociu, Cristina Maria, Elena Diacu ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26295
EVALUATION OF THE ENVIRONMENTAL IMPACT OF ROAD PAVEMENTS FROM A LIFE CYCLE PERSPECTIVE
Environmental Engineering and Management Journal › Vol. 13 › Nr. 2 AbstractThe road infrastructure has a major environmental impact by covering important land surfaces and consuming enormous amounts of raw materials for construction and maintenance. The impact of transport pavements needs to be considered from the design stage and to be examined during the whole life cycle of the infrastructure: raw materials extraction and initial transformation, manufacturing, placement on site, exploitation, maintenance, and demolition. This paper evaluates the impact of asp... Autori: Isabela Maria Simion, Laura Dumitrescu, Maria Gavrilescu, , Radu Andrei, Sebastian George Maxineasa ISSN: 1843 - 3707 http://www.ecozone.ro/reviste.php?RID=26297 |
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