AbstractAromatic volatile organic compounds (VOCs) proved to have enhanced polluting behavior upon the atmosphere and human health. Their catalytic destruction is an alternative for environmental pollution reduction in the case of gaseous emissions with low contents of VOC.In this paper, an experimental study is presented, concerning the conversion of benzene and its mono-halogenated derivatives on SCR-DeNOx (V2O5-WO3/TiO2) commercial catalyst, specific for the reduction process of nitrogen oxid...
Autori: Florin Bandrabur, Heinz Koser, Ion Balasanian, Liliana Lazar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25105

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

Contine urmatoarele articole:??Â?Â? Alternative energy sources in transition countries. The case of bioenergy in Ukraine??Â?Â? Catalytic destruction of aromatic VOCs on SCR-DeNOx commercial catalyst??Â?Â? Ecological Economics And Transport Systems??Â?Â? Bioleaching of uranyl ions from uranium ores by some algae??Â?Â? Irreversible affinity immobilization of lentil seedling??Â?Â? Evaluation of artificial neural network techniques for river flow forecasting??Â?Â? Hydrogen and sustainable energy. Re...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25194

A series of new Ni(II) poly-phosphinates have been synthesised using Ni(II) acetylacetonate as nickel precursor and a succession of ligands derived from phosphinic acid: ethyl-butyl-phosphinic acid, ethyl-butyl-thio-phosphinic acid, and respectively ethylbutyl-di-thio-phosphinic acid. Chemical analysis gel-chromatography, infrared spectroscopy (IR), spin electronic resonance (RES), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), electrical resistance measurements at different temper...
Autori: Daniel Sutiman, Doina Sibiescu, , Mircea Teodor Nechita
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25118

Iinclude urmatoarele articole:� Process water of papermaking: model building and characterization� Landfill inventory in the Republic of Moldova: problems and solutions� Floodplain revegetation and river basin restoration� Environmental problems of copper complex in Bor area� Researches on air micro flora determination from public indoor spaces and hospital wards in an urban area� Current practice of solid waste management in Malaysia and its disposal� An assessment of potential he...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25199

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

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

AbstractFlocculation performance of three chitosan samples with different viscosities (?§ = 400, 800 and 1000 mPas) and two strong synthetic polycations of integral type (PDADMAC and PCA5) on two model aqueous suspensions (kaolin and bentonite) was investigated. The flocculation results indicated that all the polycation samples were efficient in the kaolin flocculation, the turbidity being completely removed at approximately the same polycation dose; the flocculation window ranged between 2.7 an...
Autori: Ecaterina Stela Dragan, Luminita Ghimici, Marcela Mihai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25201

AbstractThe paper describes the synthesis and characterization of layered double hydroxides (LDH) intercalated with 4,6-dinitro-o-cresol(DNOC) and 2,6-dichlorobenzonitrile (2,6DBN) by anionic exchange method. The incorporation of the organic pesticides in the structure of layered double hydroxides can offer premises to increase the pesticide active life by reducing its volatilization, controlling the release of the pesticide from the layered structure and decreasing the pesticide adsorption in s...
Autori: Gabriela Lisa, Marcel Ionel Popa, Mihaela Frunza
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25144

This study presents an evaluation of the catalytic performances of Fe containing clay-based catalysts for the wet hydrogen peroxide catalytic oxidation (WHPCO) of 4-chlorophenol (4-CP) aqueous wastes. The catalysts were prepared by well-established techniques, their properties being determined by DRX, BET and chemical analysis techniques. All the tests were performed on a laboratory scale set-up. The ion-exchanged clays were the most active catalysts (100 % 4-CP and 84 % COD removal for Fe-Mt) b...
Autori: , Cezar Catrinescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25157

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

AbstractThe mechanisms in the shaping of organic food in Denmark since the 1970'ies are analysed as a contribution to the discussion of strategies for a more sustainable production and consumption of food. The background is the major  achievements in Denmark within organic food since the 1970'ies, but also the recent years' reduction in the land converted to organic farming. The analyses are based on experiences from projects, analyses and literature and draw on innovation theory and theory...
Autori: Michael Sogaard Jorgensen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25153

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

In recent years, the release of volatile organic compounds (VOCs) has received much attention. Catalytic oxidation of VOCs, found in small concentration in industrial gas emissions constitutes an alternative for environmental pollution reduction.In this paper, a comparative study regarding the non-catalytic and catalytic oxidative destruction of non-halogenated or halogenated C6 hydrocarbons (C6H14, C6H12, C6H6, Cl-C6H5, Br-C6H5), is presented. Catalytic oxidation was studied in the presence of ...
Autori: Florin Bandrabur, Heinz Koser, Ion Balasanian, Liliana Lazar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25162

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

Contain all the articles from this issueDestruction of Volatile Organic Compounds by catalytic oxidationAlice Oana Rusu, Emil DumitriuRisk assessment for a shipyard from Romanian Black Sea CoastAnca Florentina Caliman, Ion Balasanian Monitoring the behavior of the restoration interventions of the Probota Monastery’s indoor frescoes under the influence of the environmental factors. II. Modifications of the physical-structural and chemical characteristicsIon Sandu, Adrian Dima, Ioan Gabriel Sand...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25173

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?Šdey, 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

AbstractThis paper presents the architectures of wireless sensor networks integrated in a complex monitoring system for a waste water treatment plant. Presently is a very expressive trend to use wireless technology for smart sensor network communication. The measurement system avoids manual data storage and an Internet server assures remote access from a station with a Web browser. ...
Autori: Florina Ungureanu, Marcelin Iulian Balasca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25190

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

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

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

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

AbstractThe extraction of some pollutants from different matrices, the treatment of hazardous and infectious wastes, the destruction of refractory compounds and the prevention of noxious emissions are the main environmental applications of microwave-assisted chemistry. The advantages and disadvantages of this technique are also considered....
Autori: Carmen Zaharia, Georgiana G. Surpăţeanu, Mioara Surpăţeanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25217

AbstractThe aim of this work was to obtain Ag - doped zeolite as antibacterial material using natural and sodium form of zeolite from Mirsid Romania with the dimensions ranged between 0.8-1.2 mm. The comparative structural characterization of natural and Ag - doped zeolite were performed using Laser Induced Breakdown Spectroscopy (LIBS), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and Infrared Spectroscopy (IR). In addition, the ion exchange total ...
Autori: Aurel Iovi, Corina Orha, Cornelia Ratiu, Florica Manea, Georgeta Burtica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25220

AbstractThe perovskite structure was synthesized by sol-gel method type citrate. Three perovskite LaMnO3 samples were obtained after calcination and were characterized by XRD, XPS and TPR. The catalytic testing was carried out in SCR-HC equipment (HC=C3H6 and C3H6 respectively) in presence and also in absence of oxygen atmosphere. The results pointed out a good activity in NOx reduction but only in oxygen absence. As it was expecting, LaMnO3 perovskite has shown a good activity for hydrocarbons ...
Autori: Helmut Papp, Ion Balasanian, Liliana-Mihaela Chirilă, Wladimir Suprun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25222

AbstractThis paper discusses the applications of synthetic PONILIT GT-2 anionic polyelectrolyte as soil conditioning agent into a site with high electric field around. All experimental data conclude that the use of a polymeric conditioning agent was increased the soil ability to support vegetation expressed as germination degree for some grass species (e.g., Raigras aristat). The performed values for germination degree increase from 3.05 % to 12.20 % when was added fertilized soil, and respectiv...
Autori: Carmen Zaharia, Ioan Ivanov Dospinescu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25225

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

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

AbstractBased on the polarization curves and electrochemical impedance spectroscopy (EIS) in the case of three commercial alloys (Wirolloy, NicromalSoft and VeraSoft) maintained in artificial saliva, it was established the type and the intensity of the corrosion process by means of the corrosion currents value. The passivation of all the samples occurred spontaneously at the open circuit potential. The corrosion currents value decrease after the alloys maintenance in the corrosive medium due the...
Autori: Daniel Mareci, Gina Ungureanu, Julia Claudia Mirza Rosca, Neculai Aelenei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25235

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

AbstractThis paper presents an overview of research related to use of surfactant modified natural zeolites (SMZ) in water and wastewater treatment. The most common natural zeolite, widely used as starting material is clinoptilolite, but other natural zeolites have also been used (chabasite, heulandite, mordenite). In the first part, the preparation methods and the influence of process parameters on the final product properties is reviewed. The discussion is focused on the influence of surfactant...
Autori: , Cezar Catrinescu, Roxana Elena Apreutesei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25241

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

AbstractThe crystallization of ferrierite/ZSM-35 zeolite at 180 Âą 50C in the presence of ethylenediamine as a structure-directing agent from reaction mixtures containing various active NaOH/SiO2 ratios has been studied. X-ray diffraction, scanning electron microscopy, TG/DTG/DSC analysis, nitrogen sorption measurements and temperature-programmed ammonia desorption were used to characterize the ferrierite/ZSM-35 solids. The XRD data reveal that the samples synthesized in optimized conditions are...
Autori: Ioana Droahna, Iuliean Asaftei, Nicolae Bilba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25251

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

AbstractThe effective mass transfer area of a Mellapak 750 Y structured packing was measured in a bench-scale plant with a column having an internal diameter of 100mm, and a packing height of 518 mm, using a broad range of gas and liquid flow rates. The absorption of carbon dioxide into natrium hydroxide aqueous solutions of 0.5 and 1.0 mol/L has been employed as test reaction. The validity of data obtained was tested by checking the two conditions of fast pseudo first order irreversible reactio...
Autori: Anton Friedl, Ilie Siminiceanu, Michael Harasek, Mihaela Dragan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25264

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

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

AbstractOne of the most important environmental problems is traffic noise in urban areas. In order to assess and monitor its influence on environmental quality, road traffic noise measurements are necessary. In generation of noise contour map, two main problems are encountered: noise measurements, which take considerable amount of time, and the method for rigorous production of noise contour map.An extrapolation technique was developed to construct noise contours using actual sound level measure...
Autori: Cahit Tagi Celik, Lale Guremen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25284

AbstractA new environmentally friendly lignosulfonate-based glue (LSG), which represents the lignin-containing interpolymer complex, has been developed for structuring sandy soils. It has been found that the changes in the LSG composition result in a change in its rheological properties, which are associated with the LSG binding ability and, thereby, have to influence the fractional composition and properties of the created soil aggregates. ...
Autori: Galia Shulga, Julia Brovkina, Juris Ozolinš, Olga Aniskevicha, Talrits Betkers
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25289

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

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

AbstractIntegrated water resources management requires planning and management activities, as well as adequate information and communication within a structure that groups different stakeholders (industry, agriculture and other types of water users, civil society representatives, university and research institutions, water authorities and waterworks companies), being thus characterized by a high level of complexity, and requiring the involvement of numerous decision-makers operating at different...
Autori: , , Luminita Lupu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25344

AbstractAn efficient design and development of the occupational health and safety managing system in a working system involves a suitable tailoring of occupational health and safety state in relation to the risk level associated to the conditions for the occurrence of general and specific hazards all through its length of operation.This paper presents a methodological approach for the analysis and for a likelihood estimate of industrial risks identified inside complex structures of the working s...
Autori: Constantin Baciu, Gabriel Dragoş Vasilescu, Tiberiu Attila Csaszar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25347

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

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

AbstractHigh proton conductivity of CsHSO4 opened new opportunities for applications as electrolyte in solid acid fuel cells (SAFC). Relatively recent, it was proved that the accommodation of this solid electrolyte by silica supports improves its proton conductivity. During this work, solid acid CsHSO4 and its composites with mesoporous silica of SBA-15 and MCF-types as host materials were synthesized and studied for the first time. Studies were mainly focused on the influence of mesoporous supp...
Autori: Adrian Ungureanu, Brindusa Dragoi, Emil Dumitriu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25366

Include urmatoarele articole:� CsHSO4/mesoporous silica composites - new electrolytes for solid acid fuel cells� Trend in exhaust emissions from in-use gasoline vehicles� Analysis of distribution of oxygen transfer rate in stirred bioreactors for bacterial broths� Electrochemical characteristics of Ti6Al7Nb alloy in Ringer's solution� Pulsed high voltage discharge technology as a new method for killing Hepatitis C virus (HCV) cells� Hydrodynamic modelling of pollution with LNAPL gene...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25367

â€? Photocatalytic properties of titania - fly ash thin filmsâ€? Study of the viscosity of some biodiesel – diesel oil blendsâ€? Aspects refering to technical and leaching properties of the secondary aluminium slags - cement compositesâ€? Studies regarding phenol and 4-chlorophenol sorption by surfactant modified zeolitesâ€? Cu-Ni nanostructured electrocatalysts obtained by electrocodepositionâ€? Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic ac...
Autori: http://www.ecozone.ro/reviste.php?RID=25373

â€? Photocatalytic properties of titania - fly ash thin filmsâ€? Study of the viscosity of some biodiesel – diesel oil blendsâ€? Aspects refering to technical and leaching properties of the secondary aluminium slags - cement compositesâ€? Studies regarding phenol and 4-chlorophenol sorption by surfactant modified zeolitesâ€? Cu-Ni nanostructured electrocatalysts obtained by electrocodepositionâ€? Molecularly imprinted poly (vinyl alcohol) films for the selective absorption of glycyrrhizinic ac...
Autori: http://www.ecozone.ro/reviste.php?RID=25374

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

Abstract The potential of using ultrasonic irradiation and microbiological treatment for the removal bis(1-chloro-2-propyl) ether from aqueous solutions has been investigated. Experiments were performed in a continuous bioreactor, 3500 mL volume, and in an ultrasonic bath respectively, using frequencies of 38+1kHz and applying a power of 30 W. Under these conditions, the sonochemical conversion of ether was found to be superior to the biological one. The ultrasound method was improved by air ...
Autori: Mihaela Iordache, Vasile Lucian Pavel, Lim Myunghee, Ioan Iordache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25403

Abstract Development of industrial cell culture processes needs a good engineering practice and system expertise in achieving a successful integrated process using disposable components. The bioreactors for 3D tissues systems could be an advantageous alternative in terms of low contamination risk, easiness of handling and scaling-up. A careful and strategic design of these equipments provides a better process control and a safe and reproducible production of tissue construct. They can offer t...
Autori: Anca-Irina Galaction, Dan Caşcaval, Dan Zaharia, Radu Ciorap
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25404

Abstract Protection of plants from diseases, pests and weeds plays a decisive role in agricultural development, as an essential part in planning and policy of numerous countries. Since the plant protection products are mainly chemicals and may be not only poisonous for humans and fauna, but they may also pollute water bodies, ground water and soil with hazardous pollutants, their use have to be environmentally friendly and sustainable. The paper discuss some aspects of benefits and risks con...
Autori: Manuela Olga Pogăcean, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25405

Abstract A facile and straightforward synthesis route, based on the anionic clay structural â€?memory effect??, has been used to obtain Fe2O3 or CeO2 supported on iron substituted hydrotalcite-like clay (FeLDH). The surface properties of the metal oxide / anionic clay ensembles were studies by X-ray photoelectron spectroscopy (XPS). After calcination at 550°C the derived mixed oxides were tested as new catalysts in the process of the selective catalytic reduction (SCR) of NOx using NH3...
Autori: Gabriela Carja, Sofronia Dranca, Elena Husanu, Irina Volf
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25413

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

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

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

Abstract The synergistic combination of polymers and inorganic compounds via sol-gel process has attracted great attention, by manipulating structure at molecular level, for developing new materials with desired properties. These new hybrid materials could have a controllable combination of the benefits of polymers (flexibility, toughness, ease of processing) and those of ceramics or glasses (hardness, durability, thermal stability). The microstructures and the properties of hybrid materials...
Autori: Lucia Dumitrescu, Ileana Manciulea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25446

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

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?ˇ2 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

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

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

Abstract A crucial stage which makes the other directions of development of membrane processes is getting new membrane materials, to meet increasingly stringent of selectivity and productivity. Polyetheretherketone shows high stability against chemical and physical agents but is poorly soluble in most common solvents. Present studies on obtaining the support of the polyetheretherketone membranes were limited by: solubility of polyetheretherketone in concentrated sulfuric acid and fast speed a...
Autori: Mihaela Emanuela Craciun, Aurelia Cristina Nechifor, Florin Aldea, Gheorghe Nechifor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25475

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

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

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

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

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

AbstractThe mechanization technologies of soil works have a major impact on physical state of soil. This situation is generated by the mechanical action of working parts which are involved in soil works and by the traffic of running systems of tractors and agricultural machines.These mechanization technologies have been tested to determine which of them correspond to the highest degree of sustainable agriculture concept and ensure protection, preservation and improvement of agricul...
Autori: Cornelia Muraru-Ionel, Gerard Jitareanu, Ioan Tenu, Petru Cojocariu, Vergil Marian Muraru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25506

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

Abstract The constructed wetlands are considered as a low-cost alternative system for nitrogen removal. Shale was selected as a media in constructed wetlands, on the basis of adsorption capacity and suitability for plant growth. The specific objective of this study was to evaluate nitrogen adsorption capacity for using as a media in constructed wetlands. Shale was sieved into 5 particle sizes Shale A-E. The physical and chemical characteristics of shale showed that it is suitable to be use as...
Autori: Amara Daothaisong, Jareeya Yimrattanabovorn
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25535

Abstract Romania’s drinking water and wastewater sector is currently going through a process of regionalization. This process involves a replacement of a local-focused governance structure by a regional-focused governance structure. The objective of this paper is to explore and explain this regionalization from a governance perspective. In two case studies, the situation before and after the regionalization are investigated. Analyses of the case studies show that the local-focused governanc...
Autori: Joanne Vinke-de Kruijf, Valentina Dinica, Denie C.M. Augustijn
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25536

Abstract 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. Surfactant-modified natural zeolites (SMZs) represent an important class of sorbents for water treatment. This work presents a comparat...
Autori: Roxana Elena Apreutesei, Cezar Catrinescu, Adrian Ungureanu,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25537

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

Abstract This paper is the investigation concerning the removal, from surface water, of humic acids and of some cations (Cu2+, Al3+) on activated carbons AG-3, BAU, CASO-16 from individual solutions as well as from their mixtures both in static and dynamic conditions. The conclusions of the paper are that, when humic acids are adsorbed from micellar solutions, semiassociates are formed on the surface of activated carbon BAU (in its porous structure), while humic acids adsorption on activated ...
Autori: Tudor Lupascu, Mihail Ciobanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25539

Abstract The paper presents the surfactant-assisted solvo-thermal route to synthesize nanoparticles of cerium oxide with different shape and morphology. The precursor was calcined at 400°C for 4 h in order to obtain CeO2 nanoparticles. The obtained samples were characterized by means of thermal analysis and FTIR spectroscopy. The UV-Vis analysis was used to study the optical properties. The morphologies and nano-structures were characterized by scanning electron microscopy (SEM) and XRD. It...
Autori: Nicolae Apostolescu, Gabriela Carja, Gabriela Apostolescu, Elena Husanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25541

Abstract Geopolymerization is a continuous developing field of research for utilizing solid waste and by-products. It provides a solution to many problems where hazardous residue has to be treated and stored under critical environmental conditions. Consumption of fly ash in the manufacture of geopolymer is an important strategy in making materials more environmentally friendly. Fly ash has been chosen as a base material in order to utilize this industrial waste. Previous researches have show...
Autori: Maria Harja, Marinela Bărbuţă, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25542

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

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

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 â€?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

Abstract The efficient understanding and application of mathematical models in the study of environmental phenomena keep up with the latest results in the mathematical domain which could provide solutions for controlling, analyzing, predicting and study of risk phenomena. This paper presents a browsing through some mathematical categories of interpreting statistical data, examples and their analysis in connection with the degree of polluting the water down the Danube River with the help of qu...
Autori: Valerian Antohe, Constantin Stanciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25562

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

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

Abstract The Environment Action Program foresees the development of a Thematic Strategy concerning the sustainable use of natural resources and waste management (Report EUR 21002 EN, 2004). In this context, the activities regarding the research and industrial development related to waste valorization through recycling and reusing have been grown. The wastes resulted from the fine ceramic technological process (scraps, used molds etc.) may be valorized. The used molds can be valorized in other...
Autori: Ion Balasanian, Liliana Lazar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25582

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

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

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

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

Abstract A five-year survey of gross ?ŽÂą+?ŽÂ?, 226Ra, and 137Cs in soils and selected spontaneous plants (Hypnum cupressiforme, Urtica dioica, Dryopsteris filix-mas, and Cirsium arvense) in the Crucea and Lesu Ursului mining areas is presented. The maximum activities in soils were fond to not exceed 0.257 Bq/g for gross ?ŽÂą+?ŽÂ?, 0.35 Bq/g 226Ra, and 0.05 Bq/g 137Cs. All plant species shown similar capabilities for gross ?ŽÂą+?ŽÂ? and 226Ra accumulation. The soil-to-plant transfer coeffi...
Autori: Alexandru Cecal, Catalin C. Nica, Dan T. Costin, Danut G. Cozma, Karin Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25604

Abstract Characterization of soil permeability is of great importance for several geotechnical analyses. In common practice, because of the difficulty in sampling of granular material, constant head permeability tests are usually employed on specimens having similar relative densities to those in the field. An alternative approach to permeability tests for granular soils is the prediction of permeability levels by means of empirical equations depending on several particle size distribution an...
Autori: Alper Sezer, Burak A. Goktepe, Selim Altun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25609

Abstract The paper presents a novel approach which aims to support the training of decision makers in maritime environmental pollution policies via an intelligent tutoring system that focuses on the automatic generation of self-assessment material. More specifically, the paper reports on the automatic construction of multiple-choice question tests from knowledge bases i.e. domain ontologies, instances, if-then rules, and multimedia objects. The reported work has been conducted with a prototyp...
Autori: Andreas Papasalouros, Konstantinos Kotis, Nikitas Nikitakos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25613

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

? 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

? 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

? 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

? 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

? 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

? 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

Temperature distribution in the vacuum directional solidification system influenced seriously on the impurities concentration andmicrostructure in Polycrystalline Silicon. In this study, a numerical model for the transient global heat transfer for directionsolidification process has been developed by the finite element method (FEM). A two-dimension numerical simulation fortemperature distribution of directional solidification process was carried out using software Multi-physics Comsol 3.5a. Ther...
Autori: Guoqiang Lv, Wenhui Ma, Hua Wang, Xiangyang Mei, Kuixian Weihttp://www.ecozone.ro/reviste.php?RID=25671

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

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 main phenomenon of coagulation is that particles aggregate to form floc. The formation of floc and cluster was simulated with computer in two-dimensional space using particle-cluster aggregation model and the properties of floc were analyzed using fractal theory. The effect of sticking probabilities on floc structure, density and porosity were analyzed. With the sticking probability increases, the simulated floc structure is gradually loose, floc density is gradually lower, the porosity is g...
Autori: Wanchun Tan, Yunbo Wang, Changbo Jiang, Shiquan Sun, Hong Chen, Xiaobao Niehttp://www.ecozone.ro/reviste.php?RID=25675

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

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

Mass and energy balance calculation is the premise and key of the SCR (Selective Catalyst Reduction) DeNOx system design. However, the traditional calculation method is too complicated. In this paper, the author designed E-R data model for DeNOx system, simulated mass and energy transfer process, and developed visual calculation software based on VCL (visual component library) after studying the principle of SCR and data structure of DeNOx system. Comparing the ammonia demand and flue gas volume...
Autori: Yungui Du, Qirong Wu, Xiu Yang, Yu Yuhttp://www.ecozone.ro/reviste.php?RID=25688

Considering the membrane fouling problem in submerged anaerobic membrane bioreactors, a set of submerged double-shaft rotary anaerobic membrane bioreactor (SDRAnMBR) was constructed by applying a double-shaft rotary module to submerged anaerobic bioreactor, and the theoretic analysis of the characteristics of hydraulics dynamics in SDRAnMBR has been performed. The membrane fouling performance for treatment of synthetic brewery wastewater was investigated by SDRAnMBR. The results of a theoretical...
Autori: Ling Bai, Chao Liu, Weiguang Lanhttp://www.ecozone.ro/reviste.php?RID=25694

A series of sodium bentonites as raw material were prepared to the modified inorganic iron-nickel montmorillonites and organic composite montmorillonites. The structural characterization and morphology of the iron-nickel crosslinked modified bentonites were observed by means of IR spectroscopy, X-ray diffraction, scanning electron microscopy. The effects of the amount of bentonites, adsorption time and pH change on the adsorption of Cr(VI) have also been studied. The results indicated that the a...
Autori: Shao Hong, Cao Ninghttp://www.ecozone.ro/reviste.php?RID=25695

The solubility and sorption behavior of naphthalene in the presence of dissolved organic acid was studied. The presence of dissolved organic acids at lower concentrations had only a little effect on naphthalene sorption. However, when the concentration exceeds a certain concentration, a significant inhibition was observed. Moreover, the inhibition enhanced with the increasing concentrations of dissolved organic acids. The change trend on solubility is similar to the sorption of naphthalene, that...
Autori: Jin hua Li, Bao xue Zhou, Qing Zheng, Wei min Caihttp://www.ecozone.ro/reviste.php?RID=25698

Many regions are facing formidable freshwater management challenges. In this research, the Water Evaluation and Planning System (WEAP) was used to simulate water demand and supply under planting structure adjustment scenario in Laohahe River Basin (LRB), China. The effects of planting structure adjustment on alleviating the water resources vulnerability were simulated by defining scenario for changes in crops sown area inputs to WEAP model. The results show that compared with the Reference, plan...
Autori: Lu Hao, Lingling Huang, Wenbin Wang, Huiyuan Zhanghttp://www.ecozone.ro/reviste.php?RID=25699

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

With the enrollment scale of universities expanded because of the large population in China, the Chinese government gradually began to pay attention to green campus’ construction. In order to guide the water conservation construction and operation management for the national universities and colleges, it was proposed the water conservation construction and operation management technology system for green campus. The main contents include perfecting water conservation management systems, popula...
Autori: Hong Xiang Chai, Ying Hua Wei, Hai Yan Xu, Qiang Hehttp://www.ecozone.ro/reviste.php?RID=25705

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 Câmpean
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25727

Slag-Fly Ash Based cementitious material materials with high volume of fly ash and slag and less cement clinker was prepared, with low water requirement, well fluidity and with high strength, and can be used to the preparation of High Performance Concrete (HPC). When the W/C is 0.36, the 28d compressive strength is 58.93 Mpa, 28d flexural strength is 14.26 Mpa. By XRay diffraction analysis (XRD) and Scanning Electron Microscope (SEM) analysis, the results show that main materials in grinded samp...
Autori: Chenghong Fu, Wen Ni, Hui Wu, Mingyang Tianhttp://www.ecozone.ro/reviste.php?RID=25708

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

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

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

Abstract:The operation of solar air heat collectors consists in a sequence of transient regimes, being conditioned by the availability in timeof the solar resource. This paper presents the results of an experimental research on transient regimes of two types of solar air heatcollectors. The absorbers of the collectors have different configurations and are made of different materials. One collector is acommercial passage air collector with the absorber made of aluminum. The other collector is an ...
Autori: Adrian Ciocănea, Andrei Dragomirescu, Sanda Budea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25731

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

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

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

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

Abstract:This technical paper presents some aspects concerning the static finite element analysis of a wind turbine blade. For themanufacturing of the blades for a 10 kW wind turbine elaborated at the Technical University of Moldova composite materialsmade up of polyester matrix reinforced with fiber glass are being used. In order to determine the mechanical properties of theproposed composite materials 10 different samples of laminated composite plates were numerically simulated in ANSYS 11....
Autori: Marin Guţu, Viorel Bostan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25747

Abstract:Hybrid nanocomposites may synergistically combine and enhance the properties of inorganic nanoparticles and organicmolecules.The objective of this paper is to examine particular nanocomposites films based on binary copolymers and inorganic TiO2nanoparticles from the structure and properties point of view. These nanoparticles were dispersed in maleic anhydride-styrene(MAS) copolymer by using elaidic acid, trans isomer of the oleic acid, as coupling agent in order to increase the compatib...
Autori: Alina Matei, Dana Perniu, Ileana Cernica, Irina Popescu, Lucia Dumitrescu, Vasilica Schiopu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25755

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

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

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

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

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

Abstract:The aim of this work is to obtain sintered porous membranes with graded structure for microfiltration by sedimentation andsintering of metallic powders. Our previous studies have demonstrated the possibility of obtaining sintered porous materials withgraded structure by sedimentation. In this paper, spherical nickel particles were used having a grain size in the 2-90 Âľm rangemeasured by the laser scattering particle size analyzer. The powders were sedimented into a sintering die in a s...
Autori: Gyorgy Thalmaier, Ioan Vida-Simiti, Nicolaie Jumate, Niculina Sechel, Valentin Moldovan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25775

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

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: António Pedro Reis, Joăo Pedro Couto, Paulo Mendonça
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25781

Abstract:Surface exploitations in the limestone quarries have a major impact on the environment both by area and intensity. The valuationof the impact can be carried out through different means, one of them being the satellite remote sensing. In this article we analyzethe effects that limestone exploitations in the outskirts of BraÂ?ov city have on the landscape, using RGB combination, vegetationindices and spectrum profiles. A series of Landsat 5 TM satellite images taken in 1984, 1989 and 2009...
Autori: Iosif Vorovencii
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25784

Abstract:This study is focused on the influence of Co and Cu ions located in Zn/Ni/Al matrix on the structural, textural and catalyticproperties of layered double hydroxides (LDHs). The samples were prepared by co-precipitation (Ni2+/Co2+(Cu2+)=0.25;M2+/M3+=2)) at low super-saturation and afterwards characterized by XRD, nitrogen physisorption, thermogravimetry, FT-IR, DRUV-Vis and TPR. The XRD results show that the resulted solids are well crystallized and contain only pure phases of LDHs.Also,...
Autori: Adrian Ungureanu, Alexandru Chirieac, Brindusa Dragoi, Emil Dumitriu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25789

Abstract:Titanium metal and its alloys have been widely used as implants under load-bearing conditions due to their biocompatibility, excellent corrosion resistance and lightness, but their inability to bond to living bone is a setback. The experiments outlined here investigated hydroxyapatite (HA) coating on Ti metal implants, used to enhance their bioactive properties. In this study, specimens of commercially pure titanium (c.p. Ti) and Ti-6Al-4V were etched in either H3PO4 or HCl, and subsequ...
Autori: Chao-Lun Fu, Hsueh-Chuan Hsu, Shih-Ching Wu, Shih-Kuang Hsu, Wen-Fu Ho
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25795

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

Given the scenario of conflicting evidence found in previous literature with respect to the best Theory to explain the relationship between Environmental Disclosure and Environmental Performance, in this study we have tested Legitimacy Theory by using a time series structure for DJS Europe Index and controlling for the kind of industry. We have used Panel Data Methodology to eliminate the individual heterogeneity and Generalized Method of Moments (GMM) to control for problems of endogeneity by u...
Autori: Esteban Pérez-Calderón, Patricia Milanés-Montero
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25825

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: Ángel Peiró-Signes, Luis Miret-Pastor, María-del-Val Segarra-Ońa, Rohit Verma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25826

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

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

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

Increased intensity of precipitation events in a future climate provide result in a number of regions with improved, more detailed models. Many mathematical models include this part of hydrological cycle with implications regarding the climatic changes. The case study shows aspects regarding the climatic changes and its impact on designing the hydraulic structures and the hydrotechnical constructions behaviour in the case of extreme hydro-meteorological phenomena....
Autori: Catrinel-Raluca Giurma-Handley, Ioan Crăciun, Ion Giurma, , Valentin Boboc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25836

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

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

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 Cârlescu, Anca-Irina Galaction, Dan Caşcaval, Mădălina Poştaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25938

The purpose of this study was to prepare new nanocomposite catalysts of Metal/LDHs type by mild reduction of transition metal cations Co2+ and Cu2+ substituted in the matrix of ZnAl-LDH at 150°C and atmospheric pressure, under hydrogen flow. To this end, a series of ZnCuCoAl layered double hydroxides (LDH) precursors were synthesized by co-precipitation method. M2+/M3+ (i.e., Zn2+/Al3+) molar ratios were kept constant while the Cu2+/Co2+ molar ratios were varied in order to investigate their in...
Autori: Adrian Ungureanu, Alexandra Sasu, Alexandru Chirieac, Alina Moscu Corcodel, Brindusa Dragoi, Constantin Rudolf, Emil Dumitriu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25852

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

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

The composite materials based on natural zeolite and undoped and N-doped TiO2, i.e., Z-Na-TiO2 and Z-Na-TiO2-N, were successfully synthesized by solid-state reaction in microwave-assisted hydrothermal conditions. Undoped TiO2 and N-doped TiO2 nanocrystals were previously synthesized by sol-gel method. The X-rays diffraction results of TiO2 nanocrystals indicated that anatase TiO2 is the dominant crystalline type. The composite materials were structural and morphological characterized by X-ray di...
Autori: Cornelia Bandas (Ratiu), Carmen Lazau, Paula Sfirloaga, Florica Manea, Rodica Pode
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25911

Newly prepared SnO2-CeO2 catalyst samples used as depollution catalysts were characterized applying low-temperature nitrogen adsorption (BET), X-ray diffraction (XRD), thermo-gravimetry (TG-dTG) and temperature-programmed reduction (TPR) methods. Pure SnO2 has higher surface area (17 m2/g) than the pure CeO2 (8 m2/g). Addition of organic tin oxide precursor to ceria in amount of 5 wt% slightly decreases the surface area of CeO2 (SSn5-Ce= 7 m2/g). The increase of tin oxide content to 10 and 20 wt...
Autori: , Anca Vasile, , Cristian Hornoiu, Jozsef Kovacs, Tatiana Yuzhakova, Veronica Bratan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25875

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

The paper proposes a method and a technology that allows the generation of a very high intensity magnetic field, at a high pressure and within an extremely short period of time into a ferrous material, in order to study the behavior of such material from the magnetic and structural perspective. The method consists in producing the �compression� of an initial magnetic flux that is generated in a coil that has inside a ferrous material cylinder (the armature), subject to testing, done by a con...
Autori: Nicolae Badara, Octavian Tarabuta, Vasile Dobref
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25887

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

Quantification of the floristic matrix is important both for animal’s nutrition and for the biodiversity monitoring of plants species under the influences of substance flow. Our researches have the main aim to study the possibilities offered by Infrared Spectroscopy in rapid, unpolluted and non-destructive analysis of floristic matrix modification from perennial grassland fertilized with organic and/or mineral fertilizers. It was performed three different FTIR models: for Poaceae (R2=0.949; RM...
Autori: Iosif Gergen, Moisuc Alexandru, Monica Harmanescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25892

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

Since the last century, as a consequence of advanced industrialization, the remarkable growth of population, and its mobility have turned the field of transport into the main factor responsible for air pollution attributable to mobile sources of pollution. The continuous accumulation of various pollutants in the environment determines severe consequences on humans, animals and plants, buildings, works of art and landscape. Road transport represents, through its characteristic features – high f...
Autori: Gabriela Mitran, Ion Tabacu, Sorin Ilie, Viorel Nicolae
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25898

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

AbstractPartial nitrification for the biological nitrogen removal (BNR) via nitrite has recently gained interest for treating high-strengthammonium wastewater with low organic matter content. However, stability of partial nitrification is still a challenge in activatedsludge system. In the present study, the technique of aerobic granulation was developed to produce granules for stable nitritation,treating ammonia-rich inorganic influent with 400 mg NH4+-N/L. The morphology, physical properties, ...
Autori: An-Jie Li, Xiang-Chun Quan, Xiao-Yan Li, Zhi-Feng Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25947

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

AbstractIn this study, palygorskite clay calcinated at different temperatures from 200 to 900 °C was used as adsorbent to removephosphate from aqueous solutions. The crystal structure and the surface property of the thermally modified material wasinvestigated to determinate the relationship between the adsorption capacity of the adsorbent and the changes of the crystalstructure and surface property. The results indicate that palygorskite clay calcinated at 700 °C had the highest adsorptioncapaci...
Autori: Chengsong Qing, Chengzhu Zhu, Dong Chen, Jiayuan Wang, Jingjing Xie, Tianhuhu Chen, Xinmin Zhan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25949

AbstractIn this paper, we report a study on structural evolution, magnetic susceptibility and arsenic content of colloidal pyrite fromXinqiao deposits in Tongling, Anhui Province, China. The pyrite was treated under N2 atmosphere and charaterized with X-raypowder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), magnetic susceptibility analysis, and atomicfluorescence spectroscopy (AFS). We observed that heating of colloidal pyrite in N2 atomosphere did not change the crys...
Autori: Dong Chen, Ping Li, Tianhu Chen, Xiao Zhu, Yadan Shi, Yan Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25951

AbstractThis paper focused on estimating climate change impact on the future water availability in the Yellow River Basin,China. However, climate change and its impact on water availability are subject to large uncertainties. In order todeal with uncertainties, scenarios were used to explore possible future states of climate variables under uncertainty,and probabilities were attached to represent uncertainty explicitly according to the Principle of Maximum Entropy.Probabilistic scenarios of futu...
Autori: Congli Dong, Gerrit Schoups, Nick van de Giesen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25957

AbstractA comprehensive evaluation methodology for water environmental carrying capacity (WECC) has been proposed. It is based ona new definition of WECC and reasonable evaluation models compared with vector norm method for water resources supply,environmental assimilative capacity, and society supporting capacity. Evaluation index of WECC is determined for Xi’an city,depending on characteristics of the water environment in Xi’an and selection principles of WECC evaluation index. Three-layerstru...
Autori: Jun Zhang, Qi Zhou, Ya-qian Zhao, Yani Geng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25960

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

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: Ákos Rédey, , Attila Sarkady, László Dióssy, Róbert Kurdi, Tatiana Yuzhakova
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25970

AbstractEnforcement is a crucial final step in any policy process, including environmental policies. Ideally policy formulation issubsequently implemented and enforced. Enforcement is needed to make sure that the envisioned effects are realized in the end.The questions we put forward in this paper are what the meaning of enforcement is; how enforcement can be put on the politicaland administrative agenda; what difficulties are to be countered when strengthening enforcement at the local level. We...
Autori: , Theo de Bruijn, Vera Vikolainen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25980

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

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 Bârjoveanu, Ioan Crăciun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25985

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

AbstractThe paper presents and discusses some aspects concerning the development of an expert system designed for surface watermonitoring in the context of sustainable management of water resources in Romania and neighboring countries. Technicalconsiderations, which are worthy to be included in the analysis of such kind of systems, are addressed: the system structure(number, type and location of hydrometric stations), number and type of measured indicators, transducers and sensors used formeasur...
Autori: Anatolie Iavorschi, B. S. Nanda Kumar, Victor Sontea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25988

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

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. Themethod’s efficiency depends by the line conductor’s 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

AbstractThe use of planar electromagnetic technology led to the improvement of high frequency characteristics of the structures and thedecrease of their size and profile, which made them easier to integrate in different devices. In order to improve these planarstructures, it is known that the parasitic capacitance (EPC) must be decreased. Another method to achieve a better functionality isto increase or decrease the high frequency losses, according to their use. Because the previous studies were...
Autori: Adina Racasan, Calin Munteanu, Claudia Hebedean, Claudia Pacurar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25996

AbstractThe paper presents an extended implementation of an adaptive filter structure for electrocardiographic (ECG) signals denoisingwhich is implemented on Field Programmable Gate Array (FPGA) circuit. The proposed FPGA adaptive filter structure can beused to clean in real-time the ECG signals from power line interferences. In order to update the adaptive filter weights, the LeastMean Square (LMS) algorithm is used. The discrete forms of the filter structure and adaptive algorithm are presente...
Autori: Cristian Győző Haba, Ioan Tudosa, Narcis Adochiei, Valeriu David
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26002

• 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

The first edition of the International Conference„ECOIMPULS 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 cities”and „ 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

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 Wächter
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26019

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

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 Sfîrloagă, Raluca Pop, Zoltan Űrmösi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26036

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 Bârjoveanu, Joanne Vinke-de Kruijf
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26039

AbstractThe expression „environmental decision” cannot be explained or summarized by a simple formula containing all the ideasfocused on it.This paper aims to develop a conceptual framework for environmental decision (at organizations level) using fractal paradigmphilosophy in its construction, with the purpose to bring order and simplicity for this type of decision. The study is based on theanalysis of several environmental documentations (existing at the level of large organizations located in...
Autori: Abdessamad Kobi, Christian Robledo, Ionuţ Viorel Herghiligiu, Mihaela Luminiţa Lupu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26043

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, Bistriţa–Năsăud, 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

AbstractThis paper presents research into conceptualisation, design and implementation of an innovative web-based virtual environmentfor flood information sharing and dissemination. A system intended to be used by flood management authorities and potentiallyaffectedcitizens is demonstrated. Latest technological advances for collection, archiving and sharing of environmental data usingweb-based Spatial Data Infrastructure (SDI) are used for system implementation. Flood-related data and models are...
Autori: Adrian Almoradie, Andreja Jonoski, Dimitri Solomatine, Florin Stoica, Ioana Popescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26045

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

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

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

AbstractBasic principles for assessing phytotoxicity are the same whether the test compound is a heavy metal, herbicide, fungicide,insecticide or other toxic compounds. The difference lies not in the method of evaluation, but in the experimental program andworking methodology.In this paper the phytotoxic effects of heavy metals, Cr (VI) and Cd (II) on plants germination and growth were studied. Stocksolutions of the two heavy metals were prepared at a concentration of 1000 mg/L, in distilled wat...
Autori: Dana Luminiţa Sobariu, , Maria Gavrilescu, Mariana Diaconu, Vasile Lucian Pavel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26062

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

AbstractThe design of hydrotechnical constructions requires knowing certain hydrological quantities necessary for their dimensioning.The annual average turbidity is one of these quantities. The issue is that, in some river sections direct observations andmeasurements do not exist regarding this hydrological quantity, so that different empirical relationships developed by variousauthors based on long observations and measurements are applied, such as that developed by Poliakov. Turbidity depends ...
Autori: Ilinca Dinu, , Tomi-Alexăndrel Hrăniciuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26066

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

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

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

AbstractThis paper is an analysis of a case study which entails the assessment of pollution degree with nitrate in the Prut river basin, byanalysing 23 wells. The novelty of this work is the use of modeling done by GIS techniques, namely the Digital Terrain Model(DTM) interpolation technique, to obtain further information starting from discrete information.In the present paper, we emphasized the increasing tendency of nitrates and nitrites content in the underground waters, in directcorrelation ...
Autori: Florian Statescu, Gabriela Biali, Lucian Vasile Pavel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26073

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

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

AbstractIn road traffic noise issues, experimental measurements are a relevant element in order to understand the problem and to adjustmodels. Sometimes, when measurements are not possible or in the designing phase, prediction models are used to perform anestimation of the equivalent level produced by a road infrastructure. Usually models parameters are obtained by a statistical datafit and thus they are related to the area where measurements have been performed. These models are suitable for st...
Autori: Gerardo Iannone
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26087

AbstractTwo laboratory-scale constructed wetlands planted with Juncus effusus were used to investigate the effect of nitrate load on thesulfur transformation dynamics related to the removal of organic carbon and ammonium. Organic carbon was removed at aconstant high mean level of 80% (inflow of 25 mg/L total organic carbon), irrespective of the nitrate load. In contrast, sulfatereduction responded immediately to the presence or absence of nitrate in an opposing manner, indicating a high abundanc...
Autori: Shubiao Wu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26095

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

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

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

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

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

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

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

Abstract Avocado post-harvest losses and cultivar-oriented trade are relevant issues in Cameroon that affect producers and retailers incomes. Identifying specific chemical characteristics of avocado oils would give an added value to underutilized species. Five avocado varieties, Booth 7, Booth 8, Collinson, Hickson and Lula, were subjected to aqueous extraction and the Attenuated Total Reflectance-Fourier Transformed Infrared spectrometry coupled with chemometrics (ATR-FTIR) profil...
Autori: Brice Ulrich Saha Foudjo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26143

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

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

AbstractRock dynamic mechanical characteristic is the basic information to study the damage of rock structures under dynamic loadsinduced from earthquake or blasting. A nuclear power plant site is a granite mountain of the same active tectonic period. Dynamic triaxial compression experiments need to be conducted on the drill cores of different project parts according to the design requirements. These drill cores were formed in the same active tectonic period, but as a result of the different bur...
Autori: Liu Bo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26163

AbstractSurface mining has the most obvious and direct influence on ecology. It has great effects on the vulnerable ecologicalenvironment in Shendong coalmine area. Therefore, it’s 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

AbstractBased on the method of images, the three-dimensional soil additive load formula caused by pipe jacking soil loss was derived byusing non-uniform soil displacement mode. Combining the formulas of additive load induced both by bulkhead additive thrust,force of friction between shield and soil, force of friction between follow-up pipes, which are based on the Mindlin solution, theformulas of total soil additive load were obtained. The distribution regularity of total additive load on adjace...
Autori: Gang Wei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26166

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

AbstractStudying the relationship between urban typical landscape functional types and vegetation communities will conduct toinformation on management measures, people’s 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

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

AbstractWith the rapid development of the city, people feel increasingly great pressure. Community Parks are playing more significantroles in people’s 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 people’s 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

AbstractElectrostatic Precipitator draws many researches on flue gas treatment technology and very few researches on its structural design. The conventional structural design of electrostatic precipitator casing uses stiffened flat sheet as wallboard which consumes a great amount of steel. Consequently, a new structural idea was explored to optimize the conventional design which applies profiled steel sheet and locates wall beam and wall column. Optimization codes were programmed to select the o...
Autori: Dengfeng Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26178

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

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 it’s 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

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 1.11×1021 1021 solar emergyjoule...
Autori: Liang Chunling
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26183

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: Ángel Peiró-Signes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26187

AbstractThis study presents a simple, synoptic and suitable for continuous monitoring model based on the fuzzy logic to monitor landdegradation after a forest fire in a Spanish Mediterranean coastal area. The model combined topography and vegetationinformation to assess land degradation status. Topography parameters, slope and aspect were derived from a digital elevationmodel (DEM). Evidences about the soil status were obtained by analyzing the vegetation cover with remote sensing images. TheNor...
Autori: Ignacio Melendez-Pastor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26206

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

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 Potosí, 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

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

AbstractIn 1979, the Gheshlagh river continuum was affected by the construction of Gheshlagh dam. More than three decades afterpresence and operation of this dam, there is a necessity to evaluate water quality in Gheshlagh reservoir. Therefore, water quality data was determined monthly from October 2008 to September 2009, to evaluate the impact of Gheshlagh dam presence and operation on the reservoir’s water quality. Eight parameters were analyzed (dissolved oxygen, biological oxygen demand,chem...
Autori: Fariba Rezaei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26225

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. Araújo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26229

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

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

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

AbstractThe aim of this study is to evaluate the treatment performance of mono azo dye Methyl Orange (MO)-containing wastewater byrecirculated up-flow constructed wetland (UFCW) with and without supplementary aeration. The successive anaerobic andaerobic treatment of the UFCW reactors could effectively remove color, organic matters and intermediate aromatic aminessimultaneously in a single reactor. With influent 50 mg/L of MO, the removal efficiencies of COD and MO were 91 and 75 %,respectively,...
Autori: Soon-An Ong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26254

AbstractThe present study is aimed at a long-term treatment performance of a constructed wetland with horizontal subsurface flow atJimlíkov, 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

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

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

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

AbstractLithuania is planning to construct a new nuclear power plant nearby the closed one. The possible radioactive pollution can be one of the main problems in its surroundings. Results of investigations of the gamma radiation equivalent dose rate (EDR) at new nuclear power plant sites are presented. Main factors influencing the level of the EDR are identified and evaluated, and geological structure of alternative sites is discussed. The gamma spectrometry data showed that the dominant influen...
Autori: Raselė Girgždienė, Vigilija Cidzikienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26277

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

AbstractIn the present paper, support vector machines (SVMs) are used to develop a quantitative structure-activity relationships (QSAR) model for the reaction rate constants (-logkNO3) of 115 heterogeneous organic compounds, through reaction with nitrate radicals (NO3•) in the troposphere. Two quantum chemical descriptors used as the inputs for the SVM model were calculated with density functional theory (DFT), at the B3LYP level of theory with 6-31G(d) basis set. The best predictions were obtai...
Autori: Bing Yi, Jiyong Deng, Xinliang Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26284

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

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

AbstractThe changes caused by windthrows regarding spruce stand lead to significant environmental modifications. In this article aspectsregarding the detection of environmental changes caused by windthrows in Sanmartin Forest Division within Miercurea CiucForest District of National Forest Administration are covered using Landsat 7 ETM+ satellite images. Two pre and post-eventsatellite images, from 2001 when massive windthrows occurred, were used in this study. The techniques used in changesdete...
Autori: Iosif Vorovencii
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26311

AbstractThe ever-growing demand for environmental assets is a phenomenon of our times. Calculating the value of these assets couldplay an important role in providing information about them and also contribute to their conservation and improvement. However,the intangible and subjective aspects involved in this kind of valuation make it difficult, if not impossible, to value them by thetraditional methods. This paper proposes the use of the Analytic Multicriteria Valuation Method (AMUVAM), which i...
Autori: Jerónimo Aznar, María Vallés-Planells, Vicente Estruch-Guitart
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26313

AbstractCosmetics, toiletry and household cleaning products are often based on different types of polymeric gels with specific rheologicalbehavior. Dynamic shear oscillation measurements were used for the monitoring of in situ polymerization process, and todetermine the viscoelastic properties of the hydrogels based on polyacrylamide and acetone-formaldehyde resin. Both storagemodulus G’ and loss modulus G” were measured in real time during the gelation process carried out directly between the p...
Autori: Andrei Rosu, Camelia Mihăilescu, Constanţa Ibănescu, Gabriela Halitchi, Maria Lungu, Maricel Danu, Simona Bistriceanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26326

AbstractThis paper presents a study of the thermoaerodynamic spectrum inside an asymmetrically heated vertical channel of a doubleskinfaçade. A double-skin façade is an envelope construction that consists of two transparent surfaces separated by an airchannel. The numerical modeling was developed using the Ansys-Fluent simulation software under conditions of forcedconvection, using a three-dimensional geometry and a “k-ε standard” turbulence model. Then, experimental tests were performedon ...
Autori: Cătălin George Popovici, Cătălin Grigoraş, , Theodor Mateescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26332

AbstractThis study was conducted to generate a hierarchical modelling based on ecological land classification in the Yukarıgokdere forestdistrict of the Mediterranean region, Turkey. Two ways indicator species analysis was applied to obtain response variables fromthe relevant vegetation matrix at each level. Response variables were modelled by using classification tree technique at eachlevel. Validation tests (i.e. multi-response permutation procedures for determination of differences of pl...
Autori: Kürşad Özkan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26352

AbstractWireless sensor network (WSN) has been widely used in national defense, military and security, environmental monitoring andmany other fields. It’s of great significance to design WSN which consumes little energy but supports service quality flexibly andeffectively. To further improve the performance of WSN, this article, focusing on aspects of low energy consumption and longlife cycle of the WSN and taking energy limits and coverage requirements in WSN into account, attributes the covera...
Autori: Wenjuan Cheng, Yiming Tian, Yourui Huang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26359

AbstractUndesirable outputs are increasingly considered in data envelopment analysis (DEA) for environmental performance assessmentbecause of hot environment issues. However, many practical conditions are not considered during modeling undesirable outputtogether with desirable outputs and inputs. In this paper, we presented several new approaches with considering weightconstraints between undesirable outputs and inputs. Then we constructed cross-efficiency models for measuring eco-efficiency.Fin...
Autori: Jing Yang, Xianguo Li, Zhixiang Zhou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26366

AbstractThe optimizing transformation of our country’s energy structure relies on the improvement of production efficiencies of domesticEnergy Companies. The efficiency improvement, in turn, is theoretically based on a set of scientific evaluation approaches. DataEnvelopment Analysis, a nonparametric method to evaluate the relative effectiveness of decision-making units, has a strongdiscriminating power to exclude invalid factors. However, DEA is sensitive to the number of evaluated decision-mak...
Autori: Lei Li, Mingyue Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26367

AbstractBased on an analysis of the attitude formation process, a theoretical model of the realization of low-carbon (LC) consumptionwas constructed. An empirical study of China was then carried out to identify the reasons for differences between attitudes andactual behavior to investigate ways of realizing an LC economy. The results indicate that environmental cognition has a positiveinfluence on social consciousness consumption behavior and a negative influence on individual consciousness cons...
Autori: Dandan Zhu, Hong Chen, Jia Wei, Qun Fen, Wenjing Niu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26369

AbstractThe adoption of Carbon tax is usually thought to be one kind of important economic measures to reduce carbon emissions. Onthe one hand, the adoption of carbon tax can reduce the use of fuels that contain high percentage of carbon, and promote thedevelopment and use of renewable energy. On the other hand, the measure will affect energy prices, supply and demand, andincome distribution, thus causing negative effects on economic growth. This paper discusses the design of the basic taxations...
Autori: Yan-bing Cai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26371

AbstractA township consists of diversified communities, and communities are the basic units of local infrastructure. The public buildings,public lighting equipment, private buildings, and community residents are the normal-state energy consuming aggregates. Ascommunity organizations have great influences, the promotion of community energy-saving policy under the organizationalinfluence, along with the concepts of direction, evaluation, and subsidy, can help to realize the community energy-saving...
Autori: Sung-Lin Hsueh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26374

AbstractIn this paper, the panel data model is built to research the dynamic evolution mechanism of the total factor energy efficiency(TFEE). Then by using the panel data of China from 1991 to 2009, this paper estimates China’s TFEE based on the input to theguide DEA model, and empirically researches on the dynamic evolution mechanism of the China’s TFEE by comparativelyanalyzing the contribution rate of every influencing factor to the growth rate of TFEE. The empirical research results show tha...
Autori: Chuan-Xu Wang, Jian-Min Wang, Li Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26380

AbstractMost of the European countries have implemented large renewable energy systems that use wind energy, solar energy and waterenergy. In our country only water energy was used for many years. In the last period there is an obvious orientation towards theuse of all types of renewable energy systems, which are both efficient and environmental friendly. The objective of our paper isto design an instrument for the evaluation of the best suited renewable energy system for different areas and typ...
Autori: Monica Leba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26395

AbstractThe paper presents the structure of an active parallel filter for reducing harmonic pollution and reactive power. The active powerfilter control is based on instantaneous reactive power theory. The control is made in the system of axes  - , which use directand inverse transformation to obtain the equations from one system to another coordinate axes. The authors present the modelingof parallel active filter based on this theory and the simulation results in MATLAB-SIMULINK...
Autori: Marius Marcu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26397

AbstractThe explosion phenomenon is an extremely complex physical-chemical process, which leads to the physical change of objectsand objectives encountered on the propagation path, as wells as the chemical modification of the underground atmosphere fromthe area of influence. During the underground propagation of the explosion, the most affected objectives are the following:ventilation constructions, regulation and insulation doors and the insulation dams. Dynamic pressure waves generated by thee...
Autori: Doru Cioclea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26401

AbstractThe simulation of different situations that may occur in the operation of the mine ventilation network is performed on its virtualmodel, developed and optimized using dedicated software. Depending on the chosen scenario, on the network model are applieda number of changes (addition of new ventilation workings, addition / removal of branches and nodes, changes in aerodynamicparameters: pressure, air flow driven by the fan etc.), the ultimate goals being: to assess how the new model obtain...
Autori: Marius Cornel Șuvar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26408

AbstractResearches aim to develop new knowledge in the metal cutting field, using a relatively new technique with a low number ofapplications nationwide, namely the flexible explosive charge with cumulative effect for fast and precise cutting of metals. Theprocedure of cutting with explosives is a process that involves using and handling materials in their solid phase.This procedure isespecially applied in cases where materials are mostly metals and it uses a directed and controlled cumulative e...
Autori: Ilie Ciprian Jitea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26410

AbstractIn Romania’s industrialized areas there are a large number of people, and therefore the amount of generated waste becomesimportant. Moreover, waste management activities have a high share in local and national administration. Prahova County hadthe highest national average density of 62.83 inhabitants/km2. With two major cities, Ploiesti and Campina, the composition ofthe urban and rural waste stored in landfill does not always respect the existing norms at national and local level. The s...
Autori: Casen Panaitescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26423

AbstractMunicipal wastewater, characterized by temperatures of 14-22°C in the inflow of Wastewater Treatment Plants and above 35-40°C in domestic outflows, represents a relevant thermal energy source. A feasibility study of the implementation of heatrecovery from a specific sewer system should take into account several aspects: potential heat capacity (depending on wastewatertemperature and flow rate in the considered area and climate conditions, and on the sewer characteristics), users that cou...
Autori: Silvia Fiore
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26427

AbstractThe supply of building materials in the city of Kinshasa is one of the major challenges for sustainable development andespecially at this time when the authorities are committed to rebuild the country and to rehabilitate the basic infrastructure,mobilization and knowledge of these materials appears to be of paramount importance. In this context, the Kinshasa morphologywill change day by day because of the operations of construction materials extraction, to meet the needs of the populatio...
Autori: Holenu Holy Mangenda
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26428

AbstractRolling bearings are one of the most commonly mechanical elements used in the construction of dynamic equipment. Thiselement can be considerate as a noise source as a result of relative motion of the components from their construction: rings,rolling elements and cage. The noise level increase with the increase of the roller bearings wear. By analyzing of the rollerbearings wear level, which appear due to the component failure, it can be determine the deterioration stage and their remaini...
Autori: Dumitru-Cristinel Nadabaica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26430

AbstractThe changes in fresh water quality are reflected, over time, in the structure of the biocenosis by adjusting the composition, theabundance and the spatial distribution of species, in an attempt to maintain a constant equilibrium. It is difficult to identify thisequilibrium just by analysing the physicochemical measurements because they represent water quality conditions of the moment,while the analysis based on biological indicators which are reflecting the composition of macrozoobenthos...
Autori: Roxana Nechifor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26431

AbstractThe aim of our investigations was to assess the potential ecotoxicological effects induced by complex chemical mixtures ofanaerobically digested sewage sludge. The sensitivity of monocotyledonae cereal (Triticum aestivum L.) test plant to varioussanitization treatments of anaerobic stabilized sewage sludge was evaluated. Several biometrical and biochemical responseindicators were selected as endpoint in this ecotoxicological tests. Thus, the ecotoxicity of sewage sludge was evaluated thr...
Autori: Dumitra Raducanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26437

AbstractThe dynamic monitoring system continuously performs the monitoring of physicochemical quality indicators of water quality ininvestigated areas. In case of ecological risk due to accidental pollution situations, the system alarms in real time the decisionfactors for the diminution of the environmental impacts and other negative effects. The distributed networks of the system arecomposed of floatable structures of Buoys Monitoring (BM) type, autonomous and adaptable to the environmental co...
Autori: Constantin Vîlcu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26445

AbstractThe purpose of this article is to elaborate a mathematical model for the prediction of average monthly environmental/outsidetemperature (T) levels in the region of Ruse, Bulgaria. Based on the method of harmonic analysis, amplitudes and phases of themain harmonic oscillations were defined. The results show the dominance of the first three harmonics for the period of theresearch. Visualization of experimental and theoretical values of the model shows a high degree of consistency between t...
Autori: Stoyan Yanev
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26446

AbstractUnderground space represents an area with multiple management problems, mainly related to water resources management,difficulties for new underground constructions (as diaphragm walls, tunnels, dewatering systems etc.), interpretation of hydrogeologicaldata or influence of the new constructions on the existing ones. The management of this area is even more difficultdue to the multitude of works, of the (sometimes) chaotic development, of the poor legislation, various ownerships of the la...
Autori: Loretta Batali
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26449

AbstractThe washing method for uranium contaminated soils using three different reagents was investigated. Experimental data havebeen obtained for four types of soils, which have been characterized in terms of particle size distribution, as well as structure andchemical composition. Thus, the decontamination degree for each type of soil and reagent respectively has been measured.Subsequently, the decontamination process has been simulated using an artificial neural network. Based on this neural ...
Autori: Alexandru Woinaroschy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26451

AbstractA lab-scale packed-bed biofilm channel reactor that operates as a plug-flow system equipped with top aeration modules wasconstructed and evaluated. To assess the reactor performance a microbial community able to degrade linuron was used. Changingthe fluid flow rates and the linuron concentrations in the inflowing medium the volumetric loading rates of linuron (BV,L) weregradually increased from 0.29 to 14.93 mg/Lh. During the operation of the reactor, an airflow rate of 0.15 ą 0.05 L/min...
Autori: Erick Marrón-Montiel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26465

AbstractCarbon monoxide (CO) is a gas obtained both from natural sources (bush fires, volcanic emissions and electric discharges) andby anthropogenic processes (incomplete combustion of fossil fuels). Together with particulate matter, nitrogen oxides andhydrocarbons, it is part of the air pollutants associated with the transport sector, which have a negative impact on human health,animals and vegetation. In this paper the authors propose a methodology for assessing CO emissions from road traffic...
Autori: Gabriela Mitran
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26466

AbstractThe aim of this study is to investigate new perspectives with respect to the greening of the wastewater collection, subsequentlyassessing the value of the vacuum over the conventional wastewater collecting system in rural areas. The research was framedfrom the perspective of policy makers to aid in making decisions about benefits on long term horizon in implementing ecoinnovativeinfrastructure technologies. The study postulates the hypothesis that the vacuum sewerage system is technologi...
Autori: Iulia Carmen Ciobotici Terryn
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26456

AbstractIn the last decades, the surface of Romanian forests decreased due to an intensive harvesting and, as a consequence, the price ofpulpwood significantly increased. In the same time, the regulations for environmental protection were successively hardened inRomania, so that all chemical pulp mills were closed for economic and environmental reasons. In these circumstances, Romanianpaper producers shifted to recovered paper as raw material. This decision is in accordance with trends of Europe...
Autori: Adrian Cătălin Puiţel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26462

AbstractWastewater treatment processes with activated sludge are described in the specialized literature by complex models withnonlinear parameterization, such as for example Activated Sludge Model ASM1, ASM2 or ASM3. Under these conditions, thedesign of control structures using the state space representation is very difficult. Suitable techniques to approach the control ofthese processes are using control structures based on an input-output model or using control structures obtained without eve...
Autori: Daniela Carp
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26470

AbstractPathogenic bacteria are fetal to human health, requiring cost-effective and safe approaches to be removed from drinking watersource. With poly-allylamine-hydrochloride (PAAH) stabilization, magnetic nanoparticles (MNPs) were introduced in this studyto remove pathogenic bacteria by electrostatic interaction and magnet capture. High removal efficiency was achieved for fourmain pathogenic species, as Escherichia, Acinetobacter, Pseudomonas and Bacillus, and over 99.5% of the pathogens can b...
Autori: Yunfeng Xu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26475

AbstractIn this study a new generation of plate-type laboratory air treatment biofilter is applied for the removal of gaseous contaminantsfrom air. The packing material for the biofilter consists of porous plates arranged vertically one after the other to produce acapillary humidification effect. The porous plate is made of polymer to secure the stiffness of the plate. Birch fibre granulesthermally treated in a steam explosion reactor are fixed on both sides of the polymer board. The granules ar...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26480

AbstractDesigning for flood risk is an important reference for hydroelectric project planning and design. In this paper, advancedchecking-point method (JC method), which is usually used to calculate structure reliability is introduced and used to analyze thedownstream design for flood risk, considering upper reservoirs’ influence; besides, the design for flood hydrograph is deducedfrom the typical flood hydrograph. So, JC method not only can consider the influence of upper reservoirs, but also c...
Autori: Lingzhi Huang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26485

AbstractThe conducted research has proved the dependence of gas flow rate in the separate channels of the two-level multichannel cycloneat a different inflow velocity and the number of channels. The carried out investigation demonstrates the dependence of changesin velocity in the channels under varying relations between peripheral and transitional flows. The work of a cyclone of the channelis based on centrifugal forces and an additionally occurring filtration process caused by the interaction ...
Autori: Pranas Baltrėnas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26488

AbstractIn this study, TiO2-zeolite modified carbon nanotubes-epoxy (TiO2-Z-CNT-Epoxy) and TiO2-zeolite modified carbon nanofibersepoxy(TiO2-Z-CNF-Epoxy) composite electrodes were applied for pentachlorophenol (PCP) degradation and determination inaqueous solution. The morpho-structural characterization of the composite electrodes was studied by scanning electronmicroscopy. The electrochemical behaviour of the electrodes was investigated under UV irradiation presence/absence, usingcyclic voltamm...
Autori: Ágnes Jakab
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26491

AbstractThis study, analyzes the benthic macroinvertebrates community structure and composition in order to assess the ecological statusas required by the Water Framework Directive (WFD). Macroinvertebrates are the appropriate indicators to describe habitatheterogenity and the water bodies ecological status by turning the allochtone material into biomass, which is then transferred tothe upper trophic levels. Moreover, the macroinvertebrates have the capacity to integrate in their structure the e...
Autori: Catalina Stoica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26502

AbstractA soot transducer based on the measurement of the electrical resistance value of the soot layer deposited on a finger structure wastested at different thermophoretic potentials. The soot, similar to that issued from the Diesel engines, in terms of particle numberand size distribution, was obtained by the incomplete burning of propane and subsequent dilution. The decrease of the resistancevalue in time was directly proportional with the temperature gradient. Thus a soot transducer is aime...
Autori: Doina Lutic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26503

AbstractMost studies exploring the contribution of the mycorrhizal symbiosis to plant metal tolerance focus on plant-metal uptake anddisregard metal effects on the symbiotic fungi. We examined the tolerance of the model arbuscular mycorrhizal fungusRhizophagus irregularisto Al and Pb in vitro cultures with transformed carrot (Daucus carota L.) roots that exclude theinterference of other microbiota. We studied the development of roots and external mycelium of R. irregularis in monoxenic andaxenic...
Autori: Mayra E. Gavito
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26516

AbstractThe impact of modern structures on the environment during the building process and actual life-cycle becomes more and more ofa problem and needs to be minimized using unconventional architectural and building solutions, materials and overallacknowledgement of the whole concept.This study has the task of determining the feasibility of a modern earth sheltered house solution by comparing its thermalperformances and environmental impact to a conventional above-ground building solution. Alth...
Autori: Horia Tundrea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26517

AbstractTwo types of nanofiltration membranes had been used to study the influence of cross flow velocity on the membrane filtration ofdenitrification effluent (NF270 and NF90). Filtration had been conducted at constant transmembrane pressure of 5 bar andvariable cross flow velocity (0.03, 0.06, 0.15 and 0.39 ms-1). The obtained normal flux was 0.47, 0.58, 0.59 and 0.77for NF270membranes and 0.35, 0.38, 0.41 and 0.39 for NF90 membranes, the increase in cross flow velocity had enhanced fluxperfor...
Autori: Abdel Halim Fuqaha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26523

AbstractAt the University of Debrecen, the Department of Electrical Engineering and Mechatronics operates in the BuildingMechatronics Research Center, where researchers took the initial steps of constructing an intelligent and sustainable building,which involved the configuring of the research infrastructure and the measurement network. In this article, we present a possibleapplication and several advantages of the developed measurement network, which are principally conducive to monitoring thee...
Autori: Eva Adamko
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26530

AbstractThe sustainable refurbishment of the existing building stock is a key issue in achieving the ambitious long-term energy andenvironmental goals of the European Union. Europe has a vast building stock built with prefabricated reinforced concrete largepanelconstruction technology after World War II to decrease the general housing shortage, mostly in the Eastern-Europeancountries and East Germany.This study focuses on the environmental evaluation of the retrofitting of the existing precast l...
Autori: Sára Hrabovszky-Horváth
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26538

AbstractThe thermal excess in a settlement compared to its rural environment is called urban heat island (UHI). It has a significant effecton human comfort in open urban spaces and indoor environment. UHI intensities (the thermal difference between the settlementand its close-to natural environment) are determined by buildup characteristics of settlements as static endowments and synopticweather conditions as dynamic factors. Effects of build-up characteristics are traced in the case of the city...
Autori: Sándor Szegedi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26539

AbstractThe electricity consumption of a country is influenced by several parameters of the national economic structure, the level ofsocietal advancement and the economic climate. Indicators based on the rate of GDP and electricity consumption are widely usedfor characterizing the productivity of an economy. In this paper, the electricity consumption of the household and productivesectors is analyzed based on reference electricity consumption (proportional to GDP) and the relationship between co...
Autori: Judit T. Kiss
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26540

AbstractFailures of geothermal system pipes are often caused by limescale buildup on the walls of the pipes. The primary aim of thiswork is to investigate the influence of the scale formed on the walls of the pipes on the vibration parameters and naturalfrequencies of pipelines. To this end, the different phases of deposition are artificially simulated in the model experiments. In thedifferent states, vibration tests are preformed to evaluate the status of the pipe section and the rate of deposi...
Autori: Dénes Kocsis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26541

AbstractThe thermal and water insulation of buildings is extremely important. Currently, the most applied insulation materials in thebuilding sector are plastic foams and fibrous materials. Different types of polystyrene materials are used as water and thermalinsulators, e.g., expanded polystyrene (EPS) and extruded polystyrene (XPS). The differences between the different polystyrenematerials is found in their manufacturing processes and thus in their microstructure. Our research focuses on the ...
Autori: Ákos Lakatos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26546

AbstractIn our study, we examined the annual carbon footprint and energy balance of a Hungarian biogas power plant with a poweroutput of 0.637 MW in 2013, with reference to the complete life cycle of the biogas production. The life cycle analysis (LCA)considered the emissions of greenhouse gases (GHG) during the production of feedstock and its transportation into the powerplant, during the operation of the factory and during the process of rendering the discarded waste materials harmless. Weesta...
Autori: György Szabó
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26548

AbstractCurrently, thermal insulation of buildings is required from both an energy savings perspective and a money savings perspective.Insulation is primarily installed on the outer surface of the buildings. Weather and other circumstances can produce humidity thatcan act on the building structure, e.g., by changing its heat capacity, the heat transfer coefficient and/or other factors. As a result,it is important to measure the sorption behaviors of the construction materials. To perform sorptio...
Autori: Ferenc Szodrai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26550

AbstractThe aim of the present work is to study the performance of a constructed wetland for domestic wastewater depuration alsoworking as a microbial fuel cell (MFC) under two different subsurface flow modes in the upper cathodic compartment (horizontalflow, HF, or vertical flow, VF), and to compare the efficiency under both situations. A pilot-scale subsurface constructed wetlandtreating domestic wastewater was used, and the installation also included the electrodes and devices needed to work ...
Autori: José Villaseńor Camacho
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26574

AbstractInterest in the relationship between innovation and Corporate Social Responsibility (CSR) has grown considerably in the last fewyears. The aim of this paper is to analyze the relationship between a company’s technological posture and CSR, as one of themain determinants of technological innovation performance. From knowledge-based and stakeholders’ theories a structuralequations model of relationships was established and statistically tested through Smart PLS on a sample of Spanish firms ...
Autori: María I. González-Ramos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26576

AbstractEnd-of-life tires are waste materials that pollute landscapes when they are disposed of in tire dumps. However, its life cycle is notfinished when they are scrapped. The rubber of end-of-life tires could be used for new purposes as construction material in roadrehabilitation. A gap-graded mix characterization was carried out in this work by means of laboratory and field performancetests. The mixture has a high content of crumb rubber (CR) by weight of bitumen. Crumb Rubber was added to t...
Autori: Victor F. Vázquez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26577

Abstract High resolution gas chromatography coupled with high resolution mass spectrometry systems are often used for the analyses of dioxins at low concentrations in environmental sample matrices such as soil, vegetation, sediment, air and food. Since the construction and operation costs of these systems are so expensive, the most of the laboratories in the developing countries haven’t the systems with high resolution mass spectrometry. Thus, cheaper systems with similar sensitivity s...
Autori: Mahmut Kemal Korucu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26601

Abstract In the Netherlands green gas is seen as a sustainable alternative to natural gas. However, green gas is still not competitive to natural gas in terms of pricing, and production volumes are remarkably low. Currently, there is a lot of attention to green gas which stems from upgraded biogas, which is produced by manure-based anaerobic co-digestion by livestock farmers. In this article the central question is to understand green gas demonstration projects from stakeholders’ persp...
Autori: Thomas Hoppe
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26603

Abstract Embankment works modify the river and floodplain hydrology by interrupting the transversal connectivity of the water bodies. The altered river flow regime affects riparian wetlands. This paper describes the rehabilitation possibilities of embanked areas by restoring connectivity of the river and topographically low zones on the floodplain (oxbows, backwaters, brooks). The following measures are proposed: refreshing inland waters from the river during droughts and evacuation of the e...
Autori: Josif Bartha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26609

Abstract This article presents the results of investigations addressing the accumulation of heavy metals in different layers of the Lake Talkša, Lithuania. For the sampling from the ice of intact structure of the sediment the turf borer was used. Concentrations of these heavy metals in sapropel layers were determined in the extracts of sapropel. After the preparation of samples, the concentration of Pb, Ni, Cr, Zn and Cu were measured in the laboratory by means of atomic absorption sp...
Autori: Justyna Kozlovska
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26615

Abstract There is broad consensus that adaptation to climate change is necessary and urgent. Numerous documents and guidelines are available that provide advice on how to incorporate climate hazards and risks into spatial policies on the global, European and national scale. The experiences of less developed countries have shown that, rather than simply cascading uniform procedures, methods and techniques of adaptation down from higher to lower levels of governance, a realistic approach calls...
Autori: Nada Lazarevic Bajec
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26612

Abstract The objectives of this paper address the identification and statistical analysis of the laws underlying the variability of the magnitude of the damages to torrent control structures induced by four of the most well-known events affecting their stability, resistance and durability. The research set consists of 100 torrent control structures that have continuously functioned for almost three decades in a managed torrential watershed in the forested mountainous area of Romania. In the ...
Autori: Ioan Clinciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26619

Abstract This study examined the characteristics of geopolymer with solar panel waste glass. After 28 days of curing, the compressive strengths of the geopolymer samples containing 10 mass % and 20 mass % solar panel waste glass were 63.3± 1.8 and 49.1 ± 2.2 MPa, respectively. The geopolymer sample with 10% solar panel waste glass exhibited a stronger reaction than that with 20% solar panel waste glass, and the strength decreased as the amount of solar panel waste glass increas...
Autori: HuiCong Hao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26621

Abstract The effects of nitrogen (N) and phosphorus (P) addition to peatland ecosystem on emissions of nitrous oxide (N2O) were measured using the closed chamber method during one growing season within a peatland on the Tibetan Plateau. The highest N2O fluxes occurred during late spring (May), while fluxes of N2O were lowest during early autumn (September). No significant correlations were found between N2O emissions and soil temperature. Because of the sites stable hydrological conditions n...
Autori: Yongheng Gao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26626

In the Huai River Basin, pollutant masses are frequently concentrated into dams and sluices, which are subsequently discharged anddestroying the downstream ecology and environment. This phenomenon has been termed the specified paroxysmal water pollution incident (SPWPI), which has attracted worldwide attention as a large-scale water pollution problem. Studies of the formation mechanism of SPWPIs have become an urgent topic for fundamental research in water pollution prevention and control. I...
Autori: Şukru Dursun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26628

Abstract Remote sensing data has been broadly used in assessing and monitoring natural resources. Monitoring forest resources with Landsat Thematic Mapper (TM) and other fine resolution sensors has become a challenging work in a wide variety of forest applications. In this paper, the relationships between stand crown closure with spectral reflectance values and some vegetation indices (VIs) obtained from Landsat TM were investigated in a case study area. The Pearson correlation and multiple ...
Autori: Alkan Günlü
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26631

Abstract Based on the spray mixing field-effect analysis method, this paper has taken into consideration the variation in the distribution of oxygen concentration in the combustion process and has put forward the combined combustion field-effect analysis method. The method is applied to the matching study of a certain kind of diesel engine’s combustion chamber with air admission and fuel injection parameters and can also be used to complete the simulation analysis and evaluation of mix...
Autori: Xiang-Rong Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26634

Abstract The purpose of this study was to investigate the influence of hydroxypropyl-β-cyclodextrin on diosmin, substance from the flavones category with important pharmacological properties. We carried out solubility studies, calculating the solubility constant of the complex formed between diosmin and hydroxypropyl-cyclodextrin at various temperatures (20, 25 and 37 0C) and in the presence of increasing cyclodextrin concentrations. AL type curves were obtained which suggest the format...
Autori: Constantin Ciobanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26643

Abstract Co(II), Cd(II) and Rh(III) complexes with 2-(1H-1,2,4-triazol-3-yl)pyridine (Htzp) as ligand were synthesized and investigated. The neutral mononuclear complexes with a generic [M(tzp)n] structure have been prepared from Htzp and corresponding transition metals chlorides at 2:1 and 3:1, respectively molar ratios in H2O–EtOH. The resulted crystalline complexes were investigated through magnetic and molar conductivity measurements, elemental analysis, FT-IR, mass spectroscopy, t...
Autori: Petronela Horlescu
ISSN: 1
http://www.ecozone.ro/reviste.php?RID=26652

Abstract Copper nanoparticles were successfully synthesized on polyether-functionalized mesoporous silica to investigate the effect of metal loading (10, 25 and 35 wt. % Cu) on their structural and catalytic properties. The oxide forms of these nanocomposite materials were thoroughly characterized by nitrogen physisorption, SAXS, WAXS, TEM, EDXS, and TPR, whereas the metallic forms were analysed by N2O chemisorption. The results indicated that the mesostructured SBA-15-like hybrids favoured ...
Autori: Constantin Rudolf
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26653

Abstract The class of xanthene dyes has a complex chemical structure, which showed to be toxic for mixed culture of microorganisms (i.e. anaerobic granular sludge). Because of the unwanted effects of Erythrosin B (Ery B) on environmental components and some food confirmed previously, the dye was chosen in this study to evaluate its ecotoxicity. Also, the Ery B photocatalytic degradation products were assessed in terms of their ecotoxicity. Three-days of seed germination and root growth test...
Autori: Laura Carmen Apostol
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26660

Abstract Biochar derived from agricultural biomass waste is increasingly recognized as multifunctional material for various applications according its characteristics. It is therefore essential to investigate biochar properties before large-scale application. In this study, rice straw-derived biochars produced at different temperature (550, 650, 750 oC). The resulting biochars were subjected to liquidphase oxidation by different agents including KOH, HNO3, H2SO4, H2O2 and KMnO4 to obtain bio...
Autori: Sobhy M. Yakout
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26661

Abstract The variation of the content of 12 phenolic compounds from 5 months aged Cabernet Sauvignon and Merlot wine samples treated with siliceous and aluminosiliceous porous materials was analysed through a HPLC method. The standard physical-chemical analyses (alcoholic concentration, total acidity, volatile acidity, relative density, reductive sugars, total dry extract, non-reductive extract, free SO2, total SO2, pH) were registered. The used nanomaterials: SBA-15, Al-MCM-41, KIT-6 were s...
Autori: Camelia Elena Luchian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26667

Abstract In the current study, the structural and adsorptive properties of the micro crystalline cellulose beads, Cellets 200 and 350, as well as the possibility to use them as adsorbents for removal of reactive dye Brilliant Red HE-3B and cationic dye Methylene Blue from aqueous solutions have been investigated. Batch experiments were conducted to study the effect of adsorbent particles size (200-500 μm), initial solution pH (1-11), adsorbent dose, dye concentration, temperature (2-450C)...
Autori: Daniela Suteu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26668

Abstract Magnetic contamination is considered more and more as a challenging issue related to biosphere pollution with magnetic materials originating in natural and artificial sources (volcanic eruptions and respectively industrial activities that contributed to iron and other metal compounds spreading in air, water and soil). Aiming to study the impact of magnetic metal ions such as iron and cobalt on the metabolism of some environmental microorganisms, in this paper an experimental simulat...
Autori: Lacramioara Oprica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26675

Abstract As natural landscapes are increasingly replaced by impervious surface materials associated with urbanization, urban areas tend to experience higher surface temperatures when compared to rural areas, which is known as the urban heat island (UHI) effect. In this study the impact of urbanization on land surface temperature (LST) and the UHI effect were examined based on two Landsat Thematic Mapper (TM) imageries of 1987 and 2007. Results show that Wuhan experienced rapid urban expansio...
Autori: Qijiao Xie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26684

Abstract The bismuth oxide (Bi2O3) nanoparticles are easily synthesized from a solution of bismuth nitrate pentahydrate (Bi(NO3)3·5H2O) in ethylene glycol by a hydrolysis solvothermal route at temperatures of 120-150C. X-ray diffraction, scanning electron microscopy and UV-visible diffuse reflectance spectroscopy are used to characterize the products. The results show that the reaction temperature, the reaction duration and the initial solution concentration play important rol...
Autori: Xiaowen Luan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26689

Abstract This research evaluated two electrokinetic remediation systems (EKR) for separating phenanthrene from bentonite and its electrochemical destruction by using a Boron Doped Diamond (BDD) electrode. The effect of the electrochemical potential for the oxidation of phenanthrene in liquid phase with Ti/BDD was analyzed by Normal Pulse Voltammetry and Hydroxyl Radical (●OH) analysis using the Spin Trapping Technique. The results showed that 70% of phenanthrene was removed from benton...
Autori: Alejandro Medel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26710

Abstract One of the changes in marketing refers to the redirection of focus from profit to sustainable development. Sustainability marketing can influence sustainable development. The key contribution of the paper is the presentation of holistic approach to sustainable development and sustainability marketing through three dimensions: goals, actors and capital. Holistic management of sustainability marketing in the process of sustainable development is focused on economic, environmental and ...
Autori: Beba Rakic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26711

Abstract Maximum removal (94±1.2%) of 2, 4 dichlorophenol (50 mg.dm-3) was achieved on silica with agitation of 4 hours, at pH 8 and 42°C. The positive enthalpy (ΔH) and negative free energy values (ΔG315K) suggested the endothermic and a spontaneous nature of sorption. The free energy of the process at all temperature was negative and increased with the increase in temperature. The values of free energy suggested a spontaneous process where the spontaneity decreased w...
Autori: Abdul Ghaffar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26718

Abstract Five multiple-attribute decision-making (MADM) methods are used to rank the four most commonly used wastewater treatment technologies in India using pre-defined set of criteria and their indicators. Results show that it is difficult to get similar ranking using different MADM methods for equal set of weights. However, for varying weights all MADM methods generated similar ranking. It is found that in wastewater treatment alternative selection problem, it is essential to define set o...
Autori: Pradip P. Kalbar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26722

Abstract Impact damage is considered the primary cause of in-service delamination in composite materials and promotes significant reduction in residual strength. Non-destructive techniques (NDT) include several methods able to detect the shape and the size of the interior damages without destruction of the structure or component, which is economically advantageous. The aim of this paper is to evaluate the properties after low velocity impacts using an experimental-numerical procedure based o...
Autori: Ana Martins Amaro
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26726

Abstract Social perception is a tool widely used in the environment research, due to the emphasis put on the one hand on the human component, as an important factor in the development of society, and on the other hand on the man-environment interaction of the past decades. The aim of the present study is to assess the population concern about the environment, and particularly about the use of asbestos (a material partly forbidden in Romania since 2007), for construction purposes. The case st...
Autori: Elena Matei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26734

Abstract Wind erosion, which strongly affects both plant and soil development in arid environments, is dependent on soil properties, wind characteristics and plant cover. In a semiarid zone in SE Spain, a new technique consisting of dusting plants with a forced wind stream reduces tillage and significantly increases productivity. By using a blower once a year, dust is raised and partly retained by plants, and eventually ends up in the understory. To assess the influence of this technique on ...
Autori: Carlos Asensio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26735

`Abstract End of life tires require sound accounting of environmental performances to design sustainable procedures for material recovery. Their use in rubber modified asphalt provides could lead to the improvement of technical and environmental performances of asphalt roads, but the effectiveness of simplified procedures is to be proved. During LIFE+ project ROADTIRE, a rubber modified asphalt road prototype, with the upper surface layer containing 10% crumb rubber in the bituminous binder,...
Autori: Irene Bartolozzi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26741

Abstract Resilience is meant in this paper as the capability of a networked infrastructure to provide its service even if some components are failed: it depends both on net-wide measures of connectivity and the role of a single component. This paper has two objectives: first to show how a set of global measures can be obtained using techniques from network theory, in particular how the spectral analysis of the adjacency and Laplacian matrices allows us to obtain a characterization of global ...
Autori: Antonio Candelieri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26746

Abstract The interaction between groundwater systems and urban environments has become an important challenge that fast developing modern cities must face. Contributing factors are, but not limited to, the continuous horizontal and vertical expansion of cities, population growth, climate change, water scarcity and water quality degradation. The present paper provides an overview on several aspects related to the interaction between aquifer systems and urban infrastructures. A review of urban...
Autori: Mohamed Amine Boukhemacha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26748

Abstract The aim of this paper is to determine the heat of combustion of plastic wastes resulted from municipal solid waste, automotive shredder facility waste and building and construction waste. The plastic wastes have been separated by flotation technique using as flotation media: water, ethanol, their mixtures and magnetic fluid. Resulted fractions have been analyzed aiming to determine the most effective fraction from the heat of combustion point of view. The obtained results have been ...
Autori: Liviu Costiuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26750

Abstract The paper presents the most economical and less polluting retaining wall system, calculated for the same site, having few different common heights used in design. The paper will highlight the importance of an environmentally friendly solution, but also the most economical solution, which should be the main criteria in the design. Two of the tools used in environmental life cycle assessments (LCA) are the carbon footprint and the energy footprint. The quantification of the carbon and...
Autori: Vasile Farcas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26753

Abstract In this study, the comparative photocatalytic activities of undoped and N-doped TiO2 anatase nanocrystals towards the degradation of Reactive Yellow 125 (RY125) azo reactive dye in aqueous solutions under UV and VIS irradiation ranges were investigated. Both nanocrystals prepared by a fast-hydrothermal method using titanium isopropoxide as precursor were characterized morpho-structurally by X-ray diffraction, SEM/EDX analysis and BET measurements. Also, optical features of the nano...
Autori: Corina Orha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26757

Abstract Deformation, damage and permanent loss of heritage assets due to various physical and environmental factors has always been a major problem. As the availability of funds for conservation and restoration is limited, the digital documentation of heritage objects and monitoring of environment-induced deformations are increasingly important for cultural heritage preservation. Our study elucidates developments in the digital image capturing and processing for recording architectural heri...
Autori: Jūratė Sužiedelytė-Visockienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26759

Abstract The link between the spread of diseases and the geographical environment has been made by scientists since a long time. Every element has an entire spectrum of possible effects on a community. One of the main reasons of studying the environment is the understanding of the way the environment conditions influence the human health and the identification of the modalities through which the negative effects of some external factors on this universal good of the society can be reduced. T...
Autori: Călin-Cornel Pop
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26760

Abstract Transparent and participatory decision making in solving complex forest management problems are fostered by numerous forest policies. Thus, all relevant stakeholders should be involved in the process of evaluating forest road options from the early stages of planning. However, participatory tools are not yet used as a matter of course in the Romanian forest sector. This study aimed to stress the importance of corporate social responsibility (CSR) in decision making in the forest sec...
Autori: Adrian Enache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26763

Abstract Every day, millions of people are exposed to noise at work and to all the associated risks. It is a clear fact that the noise is an important problem in the industrial areas and moreover it becomes a significant issue in a wide range of other non-industrial environments as well. The current trend in the construction of gearboxes, regarding the speed increasing, favors the increase of the dynamic loads, which are accompanying the operation of equipments. The dynamic contact phenomen...
Autori: Zoltan Iosif Korka
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26765

Abstract In order to verify the possibility of agricultural drought forecasting and prediction of agricultural yields in a given region, two climatic indices were used to monitor drought: Standardized Precipitation Index (SPI) and Bhalme - Mooley Drought Index (BMDI). For the case study were taken into account conditions in Oradea, from Crişurilor Plain, which is located in the Western Romania. Evolution of dry periods determined by the two indices is similar but there are differences i...
Autori: Nicu Cornel Sabău
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26766

Abstract This paper presents the application of life cycle assessment (LCA) modelling used in the process of comparing the best technology for disposal municipal solid waste (MSW) in the Banjaluka region. Three scenarios were considered: unsanitary landfill, sanitary landfill with gas collection and burning on flare and sanitary landfill with energy recovery. The Banjaluka landfill is currently an unsanitary landfill because a system for collecting and treating gas has not yet been implement...
Autori: Draženko Bjelić
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26767

Abstract This paper reports the activity, promoted by the Italian agency for new technologies, energy and sustainable economic development (ENEA), in the framework of the project for the development and implementation of the first Italian Platform for Industrial Symbiosis implemented in Sicily (2011-2015). The goals of the project were: to provide a methodology and an instrument for industrial symbiosis implementation at regional scale, to implement a IS Platform as a support to SMEs to ind...
Autori: Laura Cutaia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26774

Abstract The recent awareness about recycling also involves the resources used in civil engineering. The use of Recycled Aggregate Concrete (RAC) has several advantages in terms of conservation of natural resources and of reduction of pollution. Although the interest on the use of structural concrete with recycled aggregates is increasing, extensive studies on the mechanical behaviour of such materials that can allow their use in alternative to standard concrete are still lacking. As a conse...
Autori: Marco Breccolotti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26776

Abstract The European Commission has introduced a whole range of policies and initiatives to promote the product eco-innovation and the environmental impacts reductions. One of the key topic for the reduction of the environmental impacts is the waste recycling and reuse (turning waste into useful resources). A teamwork of Politecnico di Milano has developed a research work, still ongoing and continuously updated, called “The usefulness of the useless. Cross-sectorial evaluation of wast...
Autori: Marco Migliore
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26788

Abstract This paper discusses end-of-life (EoL) modeling issues in Life Cycle Assessment (LCA), through the application to a domestic cooker hood. Two EoL approaches are applied and discussed, namely the avoided burden and the one recommended by the Product Environmental Footprint (PEF) Guide, presently under testing. While no case studies on PEF application have been published yet, to the best of our knowledge, the scientific community is questioning the robustness and relevance of some me...
Autori: Francesca Reale
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26790

Abstract Recently several innovative suggestions on how industrial wastes can be utilised in new products have been presented in literature, e.g. as filler or additives in concrete, incorporated in ceramic materials to produce glass-ceramics and pavement construction. In this work, metallurgical materials from secondary aluminium scrap processing and glass waste derived from treatments of packaging and fluorescent lamps were considered for fabrication of new ceramic materials using powder te...
Autori: Rosa Taurino
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26794

Abstract To make sustainability transitions happen, it is crucial not only to have strategic planning processes committed by the top management, but also to encourage community engagement, approaching and promoting a bottom-up process. In the specific case of a University Campus, that means the involvement of the students not only as consumers, but with a leading role in the sustainability process. DICAM department of University of Bologna has recently started the implementation of some prac...
Autori: Sara Rizzo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26798

Abstract Economy depends heavily on transport. Since the overwhelming motor vehicles burn fossil fuels at present, transport system keeps producing CO2, which will speed up the climate change if fossil fuels are consumed excessively. Thus, Jinan, the economic center of China’s second developed province, aims to formulate a low-carbon transport system in future. This paper analyzes the causal relationship in transport system and discusses its CO2 emission situation according to the time...
Autori: Qiang Han
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26802

Abstract In this paper, the structure and working principles of a microbial fuel cell (MFC) are analysed, and a mathematical simulation model of MFCs is established based on the electrochemical equation, kinetic equation and material balance equation of a MFC. A simulation analysis and discussions are conducted in a MATLAB environment to investigate the effect of acetate concentration, influent flow and external resistance on the performance of a MFC system. The simulation model is demonstra...
Autori: Aimin An
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26803

Abstract The objective of this paper is to propose an optimal path for a circular economy strategy of Aluminum Corporation of China (CHINALCO) by constructing a circular economy evaluation model. Based on CHINALCO’s resource circulation and the regularity of material balance, and by depicting the value information in the process of resource input, consumption, output and waste, we build a comprehensive evaluation model for the enterprise circular economy - a resource value flow equatio...
Autori: Fei Xiong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26815

Abstract The recycling and later use of construction and demolition waste (C&D waste) as construction materials present a strategic inconvenience for many stakeholders involved in the sustainable construction. In some countries, the recycling percentage of C&D waste is around 80% of the C&D generated. However, in other countries this percentage is much lower. This complexity requires a better understanding of the recycling dynamic. In the specific case of Spain, the National Inte...
Autori: Nuria Calvo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26817

Abstract It has been shown that the scale of damage in buildings with steel reinforcement, due to direct lightning strikes, is insignificantly small compared to lightning effects on buildings with no such steel reinforcement. Observed small-scale damages are also confined to points of strike; hence the only risk for occupants and properties is injury or damage caused by falling materials. A large number of such cases have been observed in Sri Lanka and Malaysia. All damaged structures, obser...
Autori: Chandima Gomes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26821

Abstract The short-term effects of plant diversity (number of plant species and species compositions) on aboveground biomass, substrate inorganic nitrogen (N) concentrations, and substrate solution “effluent” N concentrations were studied in a subsurface verticalflow constructed wetland (CW). Results showed that (1) the number of plant species increased aboveground biomass (P< 0.05) but had no effect on the overyielding index DMax; (2) the species compositions and presence of ...
Autori: Hai Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26822

Abstract The problem of monitoring and controlling the complex and heterogeneous water distribution networks in urban environments is not new. Existing solutions include high-resilience and availability of telemetry systems where a wired or less often wireless backbone is connecting heterogeneous field devices to a centralized control centre. In the control centre, the administrative personnel of the utility are offered an overview of the system status, presented with possible alarms and may...
Autori: Athanasia Tsertou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26825

Abstract Models are very important in the development of information systems for water management and they concern not only hydrology aspects, but also representations of complex software applications. Their conception requires big and orchestrated efforts of various stakeholders, like hydrologists, software and electrical engineers, emergency professionals, GIS specialists and ecologists. Water management blends multi-disciplinary aspects; therefore software analysis and design for this dom...
Autori: Anca Daniela Ionita
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26829

Abstract In citizen observatories, the observations, insights and involvement of 'ordinary' citizens - alongside those of scientists and professionals - can be included in earth observation, environmental conservation as well as decision making. Facilitated by information and communication technologies (ICTs), such ICT-enabled citizen observatories have the potential to generate fundamental changes to existing governance structures. Based on an action research approach in three Europ...
Autori: Uta Wehn
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26831

Abstract Urban environments present unique opportunities for developing new system architectures and applications aligned with the “Internet of things” paradigm. The data sources are still largely provided by physical sensors and technical devices, albeit a significant role is already played (e.g. in environmental monitoring networks) by virtual or soft sensors provided by simulation models, while a growing role is being played by human data generated thru participatory platforms...
Autori: Francesco Archetti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26833

Abstract A large number of energy inefficient buildings were constructed without taking into account the principles of green building, which requires efficient utilization of local resources. In this work hemp and peat fibres were used in order to produce effective ecological thermal insulating material. Tests were carried out using short dishevelled hemp and chopped peat fibres. Effective composites from local renewable resources were produced. Macro- and microstructures of composites as we...
Autori: Rūta Stapulionienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26844

Abstract Landslides constitute an abrupt and short-lived geomorphic risk phenomena, which may cause significant damages to human made infrastructures or even claim human lives. The present study aims to assess landslide susceptibility, at regional scale, in the Bârlad Basin, situated in eastern Romania. The subject is approached by means of logistic regression analysis, which is one of the main methods employed for this purpose worldwide. A landslide inventory was carried out by digiti...
Autori: Cristian Valeriu Patriche
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26846

Abstract Solar energy is one of the most important renewable resources due to its unique set of advantages. In urban configurations, wide open spaces used for parking areas close to malls, stadiums and industrial areas become justified challenges in revaluating them by placing solar panels on their wide roofs. The paper is a first attempt that reflects the scientific interest in the particularities of wind action upon the solar panels sustained by structural framed elements and which cover ...
Autori: Elena Axinte
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26849

Abstract The traditional industrial parks (TIPs) in China has been rapidly developed in the past 30 years, which have contributed to stable and continuing GDP growth, but also caused severe pollution. In order to solve the conflict between local economic development, environmental pollution and resource shortage, the TIPs in China should be transformed to eco-industrial parks (EIPs). However, the eco-transformation of China's TIPs is still at an exploratory stage. So, the paper studies e...
Autori: Jiang Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26855

Abstract Urban Tree Canopy (UTC) is an important asset in the urban ecological system by reducing the heat, runoff and improving air quality. Estimating the available urban tree canopy is important for decision makers for better understanding of urban ecosystems and helps to improve environmental quality and human health in urban areas and plan conservation activities. This paper reports on an object-oriented tree extraction method developed by using spectral and textural information of High...
Autori: Muneeswaran Mariappan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26858

Abstract Energy costs not included in consumer utility invoices include human health problems triggered by air pollution from burning fossil fuels, and environmental degradation caused by global warming, acid rain, and water pollution. Such costs, peripheral to energy pricing, are called externalities because electricity producers and users do not pay for them directly. Society as a whole must pay. This pricing system masks the true costs of fossil-based electricity generation plants, result...
Autori: Hasan Karimzadegan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26862

Abstract The first step for scientific and sustainable aquaculture development is appropriate site selection, and the success or failure of any aquaculture development largely depends on the right selection of the site. Due to favorable climatic conditions, suitable water quality, soil high natural productivity and space availability, the long southern coastline of Iran is regarded as highly suitable for aquaculture development. Site selection can be viewed as a multi-criteria decision makin...
Autori: Freydoon Vafaie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26866

Abstract Parkinson's disease (PD) is a neurodegenerative disorder that occurs due to a progressive degeneration of dopaminergic (DA) neurons. Brain area affected by progressive destruction of neurons controls movements, and patients with PD reveal rigid and uncontrollable gestures, postural instability, small handwriting and tremor. There are some risk factors that have been proven to trigger PD with a certain probability (for example insecticides exposure, and genetic and environmental ...
Autori: Oana Geman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26868

Abstract Popular since ancient times, the mineral waters from Carpathian Chain (Romania) have gained a well-deserved reputation due to their quality and health benefits. This study provides a description of the chemical and isotopic composition (δ2H, δ18O) of mineral waters (CO2 - rich and CO2 - free water) located in six of the most popular areas, in order to improve the overall knowledge about their genesis and recharge mechanisms. The hydro-chemical facies of groundwater vary ...
Autori: Roxana Elena Ionete
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26869

Abstract In the present study, several selected formulations based on recycled (rPP) or virgin polyolefins (vPP) and lignocelluloses were prepared and subjected to microorganism attack. Biodegradation tests were performed with microbial strains belonging to fungal genera, like Aspergillus, Penicillium and Fusarium. The initiation of biodegradation was demonstrated by Scanning Electron Microscope (SEM) micrographs showing the colonization of surface samples by microbial strains. The crystalli...
Autori: Luiza Jecu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26879

Abstract Phytoremediation tests on heavy metals bioaccumulation were performed during 2012-2014 with aquatic species Lemna minor, Pistia stratiotes, Eichhornia crassipes, Vallisneria spiralis, Hydrilla verticillata, Cladophora glomerata on samples of contaminated waters collected from the toxic pond of waste landfill Şomârd-Mediaş, Sibiu County. With the purpose to check the species capacity for heavy metal removal and bioaccumulation, comparative analysis of water samples wa...
Autori: Dana Malschi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26882

Abstract Urban areas represent the main zones of anthropogenic emissions and, at the same time, includes the largest number of population exposed to air pollution. Data related to traffic hot spots locations in Sibiu urban areas are presented and discussed in this paper. It is important to assess the impact of changing climate conditions and concentration of pollutants, these aspects are of special interest because of high and increasing population of urban regions exposed to consequences of...
Autori: Valentin Petrescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26887

Abstract The present study analyzes the background pollution in Romania using official data reported for recorded air pollutants from the automated regional stations located at three mountain sites. A series of key figures regarding the trend of background pollution at Romanian mountain sites was extracted based on annual average concentrations recorded between 2010 and 2013 i.e. 8.8 ± 5.2 μg NO2/m3, 5.3 ± 1.6 μg SO2/m3, 0.075 ± 0.035 μg CO/m3, 3.2 ± 0.9 ...
Autori: Daniel Dunea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26897

Abstract The goal of this paper is to investigate the decomposition of aqueous solutions of Azorubin (E122), i.e., an azo dye used in food industry, in a pulsed gliding arc discharge reactor (direct treatment). Air and Argon as carrier gases with solution spray has been considered, as a first approach. The bleaching of the aqueous solution was observed immediately after direct plasma treatment and the decreasing of the dye concentration have been emphasized. Further more, the dye concentrati...
Autori: Marius Ursache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26898

Abstract The design, the realization of the prototype and the acoustic standardization process of a novel periodic system made up of multiphysical phenomena scatterers as a road traffic noise reducing device are reported in this work. The structure analysed here, inspired by Sonic Crystals, has been designed following the guidelines established in recent works according to the concept of tunability. Thus, the acoustic barrier proposed here includes several mechanisms of noise control, such a...
Autori: Sergio Castińeira-Ibáńez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26900

Abstract The objective of this study is to manufacture a geopolymer by replacing part of the metakaolinite by calcined oil-contaminated clay (OCC) and investigate its properties. The effects of the calcination temperature, the mix design of the alkali activator, and the degree of calcined OCC replacement on the properties of the geopolymer were studied. Evaluation of pozzolanic activity and compressive strength as well as micro structure observation by SEM and XRD were performed in this stud...
Autori: Huan-Lin Luo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26905

Abstract The ethanol-gasoline blends have brought new challenges to the in-cylinder mixture air-fuel ratio control for the variable fuel characteristics especially in the traditional PFI (Port Fuel Injection) SI (Spark Ignition) engines. This paper studied all the dynamic links in the intake fuel transfer process from the fuel injectors to cylinders, including the wall-wetting effect and injector fuel flow characteristics. A wall-wetting fuel film evaporation model and an injector fuel flow ...
Autori: Dongwei Yao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26918

This paper presents municipal solid waste (MSW) responsibility and management structure in Sinop, Turkey together with the current situation of collection, recycling, transport and disposal of MSW. In order to examine the MSW management, a longterm study was conducted between 1994 and 2010. In this study, physical composition of MSW was determined. Proximate analysis (moisture content, density and calorific value) and ultimate analysis (carbon, hydrogen, oxygen, nitrogen, sulfur and ash) of ...
Autori: Nurdan Gamze Turan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26925

Photodegradation caused by sun irradiation may be of major significance in the natural elimination process of pharmaceuticals and personal care products (PPCPs). The fate of metronidazole (MET) in surface water under solar irradiation was investigated. Several parameters affecting the photochemical degradation rate of MET were investigated, including the initial pharmaceutical concentration, continuous input and the presence of other pharmaceuticals like tinidazole (TNZ) with similar structur...
Autori: Bo Wu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26928

This study investigates the effects of earthworms and a variety of substrates on photosynthetic characteristics and rate of uptake of nitrogen (N) and phosphorus (P) by Iris pseudacorus L. (Iridaceae) in a constructed wetland system under greenhouse conditions. The study seeks to identify those factors that maximize the efficient removal of N and P. Four substrates were tested: pure sand, sand and soil, sand and organic matter, and a mixture of sand, soil and organic matter. The photosyntheti...
Autori: Defu Xu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26936

The aim of this study was to examine the pollutant removal performance of a combined process using horizontal subsurface flow constructed wetland (HFCW) and an oxidation pond (OP) in the treatment of a decentralized domestic wastewater. Waters along the water flow and at different depths of the wetland substrate were sampled and analyzed during continuous operation. It was found that the HFCW-OP combined system presented good organic matter and phosphorus removal capacity. In the first year, ...
Autori: Wendong Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26943

Fostering energy conservation behavior is an important component of moving towards a sustainable energy future. This study aims to identify the key determinants predicting energy conservation intention in a university setting. The theory of planned behavior is adopted as the theoretical framework to investigate the underlying determinants of energy conservation intention using structural equation modeling analysis. A total of 2,000 students from the five leading public universities in Malaysi...
Autori: Low Sheau-Ting
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26946

In this work biodegradation of basic fuchsin and methyl red by the blue green algae Hydrocoleum oligotrichum and Oscillatoria limnetica was investigated. The degradation of basic fuschin after 7 days by H. oligotrichum and O. limnetica was 92.44% and 90.23%, respectively. On the other hand, the degradation of methyl red by H. oligotrichum and O. limnetica after 7 days was 53.23% and 50.18%, respectively. The degradation of these dyes by algae seems to be related to the molecular structures of...
Autori: Ghada W. Abou-El-Souod
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26949

This work establishes a mapping procedure to determine the risk of susceptibility to hillside movements (landslides) that can be applied to any territory by means of algebraic mapping of the passive or determining factors that influence risk. On the one hand, derivative morphometric mappings obtained from a Digital Terrain Model that notably influence the genesis of active processes have been generated; these mappings include gradient mapping, aspect mapping and type of curvature mapping. On ...
Autori: Antonio Miguel Martínez-Grańa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26954

This paper studies, in lab scale, the possibility of removing a rich-in-pollutant soil fraction using flotation, with the clean fraction been restored to its natural condition. The tests were carried out in a conventional flotation cell with mechanical agitation. Artificially polluted soil was used throughout this study by mixing soil with diesel fuel. The effect of the following flotation factors was studied: pulp pH, collector type and quantity, conditioning and flotation time, initial soil...
Autori: Nickolaos Georgiou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26960

Nautical tourism is a phenomenon that in the last three decades has recorded one of the highest development rates known in the European and Croatian economies. Economic forecasters for tourism development agree that nautical tourism is in its early stages of development and that increasing results are to be expected. From a scientific perspective, however, nautical tourism development is still not sufficiently represented in the science of tourism. In Croatia, nautical tourism is seen as a ne...
Autori: Mirjana Kovačić
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26962

We analysed the body of knowledge on the topic of environmental management in the construction sector with the intention to identify the state of the art and opportunities for further research. The articles' database is from international journals in English and in Portuguese languages. We identified key features of interest related to environmental management in the construction sector by performing a systematic analysis. Relevant articles along with their level of citations and the reco...
Autori: Lucila M.S. Campos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26969

Every year a lot of hectares of forest are burn in Europe, especially in the south part of Europe, where the climate is hot and dry during the summer. Last decades, with climate change, this part of the Europe becomes dryer and increase of the field fires is observed. The same problems arise in northern America, Australia and other dry regions. A model field fire spread can have several applications. The prevision of the fire front can help the fireman to optimize their work, and to reduce th...
Autori: Stefka Fidanova
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26973

The present paper discusses the current situation in the municipal solid management existing in the North-East region of Romania. Furthermore, a Decision Support Tool is implemented in order to compare viable alternative waste management scenarios. The most recent data on the available current infrastructure and the amount of the generated waste have been used so as to determine the baseline status, while the results from the onsite waste analysis were also used as input data. To verify sever...
Autori: Vassilis Inglezakis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26974

Risk can be defined as the probability that an existing hazard could turn into an accident. It can be evaluated through the potential losses in the manufacturing process or the harmful level of accidents with an impact on human health, caused by unpredictable technical events. Romanian authorities have not found yet a nationwide method for evaluating the risks in the establishments that fall under the scope of the SEVESO Directive. Starting from the potential risk that an accident might occur...
Autori: Daniel-Cătălin Felegeanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26979

The article studies the adoption of eco-innovation using the diffusion dynamic as a paradigm for investigating the environmental reform in providing public goods. The study focused on the wastewater collection systems and analyzed how the structure of the market, socio-cultural conditions, geographic proximity and the Gross Domestic Product level measured the acceptance or rejection of eco-innovation. The authors investigated the data in order to test three hypotheses, respectively, the influ...
Autori: Iulia C. Terryn
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26981

In the present study, the effects of two methods for thermal sanitization of soil, by oven and by autoclave, and two non-ionizing radiation sterilization methods, UVC and microwave on pH, conductivity, dry weight, total number of germs and respiration of samples from neutral commercial soil were evaluated, using international standard methods. Also, the infrared and UV-VIS spectroscopy were applied for the determination of chemical properties and structural characterization of humic acid and ...
Autori: Dumitra Raducanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26985

Biomass is a very important source for the production of biofuels. During the hydrolysis step of the process for obtaining biofuels the rate of decomposition of biomass is strictly related to its organic matter content and the operating mode of the facilities. This paper highlights the effect of different pretreatments on the composition of biomass at the molecular level using Fourier Transform Infrared Spectroscopy (FTIR) and Principal Component Analysis (PCA). For this experiment, a mixture...
Autori: Andreea Cocarcea Rusei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26986

In past ten years area of green technologies and materials was the most growing industry sector in the world. It is related with global warming, air pollution and energy saving. Building sector intensively increased air pollution and is related with high energy consumptions. The use of renewable or recyclable materials can reduce these problems. In current work, thermal insulating materials from hemp shives and corn starch were investigated. Structures of various shives fractions were analyz...
Autori: Giedrius Balčiūnas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26992

High contents of colloidal and organic materials in municipal wastewater sludge cause problems in the process of dewatering. The filtering efficiency can be improved by chemical conditioning, but the effectiveness of mechanical dewatering is limited because flocculated sludge is highly compressible. Physical conditioners such as bagasse can be used to facilitate mechanical dewatering. This paper describes the use of bagasse pith (cane sugar waste fiber) to improve the dewatering process of mu...
Autori: Nematallah Jaafarzadeh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26995

Treatment of domestic wastewater using constructed wetland system vegetated with Phragmites australis was studied at lab scale. Response surface methodology (RSM) a mathematical model was employed for analyzing the effect of independent factors (inlet flow rate, outlet flow rate, retention time) on wastewater parameters e.g. electrical conductivity, BOD5, COD, nitrates, phosphates, total solids, suspended solids, heavy metals in order to maximally treat wastewater. All independent variables w...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26999

This paper presents the results of measurements related to the activity concentrations of 226Ra, 232Th and 40K in autoclaved aerated concrete (AAC) used as building materials for various constructions in Romania. Radiation index (I) and the hazard index (HI) were estimated to assess the risk arising from the usage of AAC materials. Our study considered various AAC samples produced by different companies, in 2015. The activity concentrations of 226Ra, 232Th and 40K were measured using by a gam...
Autori: Dorina Nicolina Isopescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27018

Pain levels may interfere with a patient`s decision when it comes to choosing an appropriate intrauterine system. To our knowledge, there is no study which compares the pain levels during and in the first weeks after the insertion of the levonorgestrel-releasing intrauterine system (LNG-IUS), opposed to copper T380A intrauterine device (C T380A IUD), considering the structural differences between the two devices. In the Department of Obstetrics and Gynecology of University Emergency Hospital...
Autori: Monica Cirstoiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27022

Over the past three decades, nickel–titanium engine-driven files have become instruments “sine qua non” for root canal treatment. They are increasingly used by dentists to facilitate the cleaning and shaping of root canals, during the mechanical treatment phase in endodontic therapy, increasing not only the speed of the treatment but also assuring a proper shape of the canal preparation. During the repeated use of these instruments, separation of the file occurs. It has been...
Autori: Teodora Stefanescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27024

The need of hydraulic structures for the improvement of the navigation conditions on the Danube, between Calarasi and Braila (km 375 and km 175), led to the development of studies regarding the environmental impact. The studies were made by correlating the dynamic implementation of hydraulic works with the results of the environmental monitoring, biotic and abiotic factors. The hydraulic works designed to be built-up on the Bala branch, raised issues regarding sturgeons’migration in thi...
Autori: Alina-Florina Nicolae
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27036

The hydrotechnical works (bottom sills, banks protections, and guiding wall) performed during 2011 -2017 period on the Danube river, between Calarasi and Braila (km 375-175), aimed to improve the fluvial navigation, and have imposed a continuous monitoring of biotic and abiotic environmental factors. The aim of these hydraulic works is to identify the possible negative effects which might appear and find the alternative solutions to eliminate the risks. The sturgeons, which are migratory spec...
Autori: Marius Constantin Raischi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27037

In the current context, when studies regarding the planet’s ability to sustain the human species consumption present more and more grim scenarios, it is required, more than ever, to consider sustainable development as a main priority for development strategies worldwide. In this sense, reducing the negative environmental impact of building materials and lowering energy consumption in buildings exploitation becomes the main axis for most of the new tendencies in architecture and civil e...
Autori: Marian Pruteanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27040

An environmental axis consists of elements, and the way they behave reflects the conditions in which they work. Romania, for example, is a country located at the crossroads of the most important environmental axes of the continent, namely the West-East axis: Western Europe - the ex-Soviet space; the North-West - South-East axis: Central Europe - Asia Minor and the Middle East; the axis of the seas: the Caspian Sea - the Black Sea - the Mediterranean; the axis of rivers and canals: Rhine - Mai...
Autori: Călin-Cornel Pop
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27044

Starting from the destructive nature of the preventive and/or rescue archaeological researches, the archaeological investigations is imposed by the steps of building, alteration, extension or repair on the works affecting the soil surface in the archaeological heritage areas, regardless of the land’s region and ownership. Considering that geographical information systems (GIS) - that are part of a broader class of information systems and are mainly characterized by data processing depen...
Autori: Ionut Maican
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27053

This paper focuses on the testing and comparison of the sensitivity of vegetation indices to determine the changes occurred in forest areas of the Cluj Forest District during the post-socialist period, between 1986 and 2009. Concurrently, the paper pursues to assess the way in which the socio-economic and social changes have caused alterations of the forest areas. These have been significantly affected by the changes occurred over the past decades, as well as by the increase of the anthropiza...
Autori: Paula Furtună
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27061

Deforestation has been recognized as an important environmental threat in the hilly area of Eastern Romania during the last two centuries. Nowadays, these former forested lands are extremely degraded through soil erosion and gullying due to improper human impact. Under such background, the paper aims at reconstituting the natural forest cover of the late 18th century, prior the aggressive deforesting actions. The methodology is based on two key elements: old maps and soil typology, both integ...
Autori: Iulian Cătălin Stângă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27062

Dam’s behavior monitoring is highly influenced by the existence of an appropriate instrumentation system installed in structure’s body, its foundation and in the neighboring area as well as by the periodical acquisition, collection, processing and interpretation of data. Existing monitoring systems may be enhanced with mobile labs that can perform regular or special measurements. Hybrid models appear to be an attractive option for the evaluation of the static and/or the dynamic be...
Autori: Altan Abdulamit
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27065

This paper seeks to empirically examine the relationship between Environmental Activities (EA) included as part of Corporate Responsibility (CR), and corporate image, loyalty, and trust in the hotel sector. It also examines the impact of image on trust, and the impact of trust on loyalty. Data were collected from a sample of 134 customers of four four-star international hotels. The data were processed with PLS-Graph software, using structural equations to test the hypotheses. The findings rev...
Autori: Beatriz Palacios Florencio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27070

Since the link between tourism and economic growth is not automatic, a country must meet certain characteristics in order for this link to occur and make it sustainable through time. Among these characteristics, environmental and sustainable policies, the existence of hard and soft infrastructure, a regulated labour market and economic and financial indicators play a key role. Therefore, Country Risk Score (CRS) can represent a good indicator of the sustainability of countries. Using Country ...
Autori: Roberto Cervelló-Royo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27074

Corporate Social Responsibility (CSR) is implemented unevenly in the Spanish tourism industry. The country’s hotel infrastructure is not an exception. Many researchers have focused on finding out to what extent the implementation of CSR is ideal from a hotel management perspective and what its effects and consequences are. To a lesser extent, this work has analyzed how and how much consumers rate socially responsible actions, particularly those associated with the environment, society a...
Autori: José Mondéjar Jiménez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27077

We examined the effluent from a municipal (Nyíregyháza, Hungary) wastewater treatment plant (WWTP) on hydrophysicochemical properties and on diversity, community structure, and stability of fish assemblages at the recipient low flow channel system during a two-year period. The WWTP outflow increased significantly the nutrient concentrations (e.g. NO2 and NO3 concentrations increased to 4x and 8x respectively), and the regime (with the permanent ~0.23m3/s load) at the recipient c...
Autori: Péter Takács
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27082

Oceanic islands face very serious environmental issues such as climate change, environmental degradation, loss of biodiversity and proliferation of invasive alien species. The delimitation of the IES shall consider the many inter-relationships between all biophysical and cultural variables, contributing therefore to a better understanding of the socio-ecological system. The Island Ecological Structure (IES) includes the key natural resources, biophysical functions and ecological processes wit...
Autori: Artur Gil
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27085

There is an extensive literature covering a number of considerations for installing noise barriers to protect living areas. In fact, noise barriers are the most popular mitigation measure on major roads across Europe. This paper aims to review some situations where the use of noise barriers is not fully recommended. Fortunately, there are available wide ranges of technical noise solutions as an alternative to the barriers. What we propose in this article is to create a simple procedure to hel...
Autori: Alina Mihaela Petrovici
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27088

This research focuses an examination of municipal solid waste (MSW) generation and composition in Amasya, providing overview of the current state of MSW management, an analysis of existing problems in MSW collection, separation, recycling and disposal. Municipal solid waste comprises more than 95% of Amasya’s solid waste, while three other types of solid waste comprise less than 5% of it, namely industrial waste (3.5%), hospital waste (1.0%) and construction and demolition waste (0.5%)...
Autori: Semra Çoruh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27099

The roots of this study are generated by the problems of plastic waste accumulations: insufficiency of storage spaces, storage costs and outgoings of plastic waste recycling, recovery, decomposition or reprocessing. The paper develops and details a modular prototype, for multifunctional territorial use, offering non-polluting and aesthetic possibility of plastic waste storage. The progress in the related fighting pollution areas have been approached, such as waste management through ecologica...
Autori: Doina Mira Dascălu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27112

The January 2010 earthquake in Haiti caused catastrophic damage, and the displacement of about 1.5 million people in urban and peri-urban areas of Port-au-Prince. A web-based questionnaire was developed and sent to international organizations working in Haiti through the Water, Sanitation and Hygiene (WASH) Cluster in order to assess how humanitarian actors responded to the sanitation needs for Internally Displaced People (IDP). The findings showed different sanitation systems being implement...
Autori: Daniela Giardina
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27133

This paper presents an analytical approach to the evaluation concept of professional risk specific to activities of controlled demolition with civil use explosives of industrial/civil objectives, ensuring the appropriate level of safety to the effects generated by performing blasting to these types of constructions. The scientific research highlighted in this article was performed within the Project PN 7:45 1:28 in the frame of The National Programme for Research and Development CORE/2014. Th...
Autori: Gabriel Dragoş Vasilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27141

The accumulated characteristics of typical veterinary antibiotics (tetracyclines, sulfonamides, quinolones and macrolides) and tetracycline resistance (tet) genes in the different wetland soils (Krasnozem and Chernozem), and the effects from Phragmites australis were evaluated in this study. Results indicated that the concentrations of targeted antibiotics and tet genes in soils with swine treatment would increase as time progressed. The tet genes and targeted antibiotics (except sulphonamide...
Autori: Lin Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27145

Three pilot-scale biofilters consisting of 1 m aerobic woodchip layers and 0.5 m submerged woodchip layers were constructed to treat the separated pig manure anaerobic digestate (SAD). Reductions of 54% dry matter, 80% of chemical oxygen demand (COD), 93% of 5-day biochemical oxygen demand (BOD5), 86% of total nitrogen (TN) and 79% of total phosphorus (TP) were achieved. The study results confirm the occurrence of nitrification in the aerobic woodchip layers and denitrification in the submer...
Autori: Kathy Carney
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27161

Nowadays environmental protection has become a valuable asset for the entire society. The information based society can provide more efficient solutions in its risks mitigation. There are already in place complex infrastructures used to monitor and control the natural environment, but most of them have lower or no interdependency. A solution to gain this integration level is represented by the “smart cities” concept. This study will present an approach used to integrate almost eve...
Autori: Mihai Horia Zaharia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27164

The effectiveness of thermal insulation materials mostly depends on their thermal conductivity. The low thermal conductivity is predetermined by density, structure, moisture content and temperature of material and, considerably less, by other indices. Loosefill cellulose insulation is allocated to the group of materials, the density of which fluctuates within large limits. This property is related not only to application of cellulose wool in different constructions, but also to technological ...
Autori: Sigitas Vėjelis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27165

Environmental problems that result from increases in the generation of urban solid waste are compounded by the inadequate management of wastes generated by large-scale meal production at Food and Nutrition Units (FNUs). With the growth of eating out sector, solid waste management of FNUs should be focused on minimizing waste generation, while considering all regulations enforced, including those related to hygienic quality of food. The goal of this study was to determine the quantities and t...
Autori: Jaqueline Zotesso
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27168

Against a background of growing concern with environmental issues, resource consumption and waste production in the construction sector, this article presents the results of a study on the implementation of environmental management systems (EMS) certification in Portuguese construction companies. It reports on how construction companies perceive motives, difficulties, benefits and effectiveness of implementing EMS certification. A questionnaire served as the basis for data collection. It was sen...
Autori: Caroline Dominguez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27174

Rural areas near Pucallpa City in the Peruvian Amazon have no access to electricity. Fuelwood is the main source of energy and is used for open-fire cooking, which is generally considered as less efficient cooking method. The performance of two improved cookstoves (Ceramic Stove - CS and Rocket Stove – RS) has been compared with the traditional open-fire three-stone cooking method locally recognized as Traditional Cocina (TC). The CS and RS were constructed by the indigenous tribe of Shipi...
Autori: Iva Kucerova
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27178

The discovery of entropy in thermodynamics has set fundamental premises for the study and analysis of the relationship between the entropy law and economic processes, as one of the main objectives of such endeavours was to separate the qualitative aspects from the realm of economics. The law we have chosen to focus on in the present paper states that, in the universe or in isolated structures, entropy increases constantly and irreversibly, thus causing a continuous and unidirectional degradat...
Autori: Ionel Bostan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27179

The adsorption of tartrazine from aqueous solution was evaluated using an iron (III) modified zeolitic tuff. The adsorbent was characterized by scanning electron microscopy and X-ray power diffraction; the modification process does not affect the crystalline structure of the zeolitic tuff. Sorption kinetic, isotherms, dose and pH effects were determined and the adsorption behavior was analyzed. The sorption equilibrium was reached in 72 hours, the adsorption capacity determined by the Langmuir m...
Autori: Adrián Alcántara-Cobos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27182

Hesperaloe funifera was studied as a new raw material for paper manufacturing and lignin recovery. An experimental design was carried out to improve the quality of the obtained pulp varying the process temperature (155, 170 and 185 ºC), time reaction (20, 40 and 60 minutes) and soda concentration (5, 10 and 15 %). All experiments were carried out with 1% anthraquinone. Lignin content, holocellulose content, α-cellulose, viscosity, Kappa number and drainability were determined in the d...
Autori: MŞ Ángeles de Andrés
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27185

A natural Cretaceous sodium (Na) bentonite from North Patagonia, Argentine, is considered a potential construction material for landfill liners. It is studied alone and in mixtures with sand. Physical and chemical properties of the Na-bentonite were determined to verify the suitability of this material for the construction of low permeability mineral liners. Hydraulic conductivity measurements were conducted on pure bentonite and on mixtures of poorly graded sand with 3, 6, 9 and 12% of Na-bento...
Autori: Telma Belén Musso
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27190

Catalysts based on nanocrystalline Mg-Zn ferrites supported on commercial alumina were prepared by in situ sol-gel auto-combustion technique. The as-obtained materials were characterized using Fourier Transform Infrared Spectroscopy (FT-IR), X-ray diffraction (XRD), atomic force microscopy (AFM) and Brunauer-Emmett-Teller (BET) specific surface area measurement. These materials were tested as catalysts for hydrogen peroxide decomposition and phenol oxidation reactions. The catalytic activity of ...
Autori: Tamara Slatineanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27192

In this paper new techniques for the analysis and improvement of the transfer function of a low-pass filter made in planar electromagnetic technology are proposed. The low pass filter is a fundamental element of the filter used for conduction electromagnetic interferences suppression. For this purpose, in order to determine the filter’s transfer function, 3D electromagnetic CAE (Computer Aided Engineering) are coupled with simulation software programs which use equivalent electric circ...
Autori: Adina Racasan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27198

A new simple empirical model is proposed to describe the waste sludge volumetric flow rate in the steady-state completely mixed activated sludge process. The model is derived based on the nonlinear regression analysis by using the Richardson’s extrapolation method and the Levenberg–Marquardt algorithm. The application of the model has been explored for a wide range of eleven fundamental biological design variables and tested against a total of 1500 additional computational scenarios ...
Autori: Kaan Yetilmezsoy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27202

Any modern enterprise, with focus on marketing and management success have to be based on market principles, pursuing the main objectives, of increasing production and services in terms of sustainable development. In this context, rural tourism and agritourism, with a high rate in rural areas, is a major factor, with direct consequences on local development and meeting the consumption needs of tourists. There are several advantages of the agritourism which had been described previously such as: ...
Autori: Elena Leonte
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27206

Various azodyes containing one or more sulfonic groups were removed from aqueous solutions by biosorption on untreated wood shavings from Picea abies. The sorption kinetics was described by the pseudo-first-order (PFO), pseudo-second-order (PSO) and modified pseudo-n-order (MPnO) equations, from which the MPnO model provided the best fit to the experimental data. The surface reaction was identified as a rate-limiting step governing the dye sorption on wood shavings, but a mixed kinetics (with a ...
Autori: Pavel Janoš
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27207

The need to develop models for analyzing socio-ecologically structured strategic portfolios derives from concerns regarding the sustainable development manifested in the current economy. Such models are useful for underlying the strategy of the organizations oriented towards achieving their objectives and the requirements of sustainable development. The model that we propose is based on an algorithm of strategic portfolio classification focused on the organization’s potential of sustainab...
Autori: Oliver Constantin Pricop
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27209

The Strategic Environmental Assessment (SEA) is both a technical and administrative procedure with (mandatory) extensive application throughout Europe, holding a primary role in sustainable territorial development. Objectives of the SEA process are to: provide a high level of protection for the environment, and promote sustainability of development by contributing to the integration of appropriate environmental considerations in the adoption and implementation of specific plans and programs. In ...
Autori: Vincenzo Torretta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27231

The aim of the present work is to investigate the effect of marble waste fillers incorporation on the mechanical properties of Recycled Aggregate Concrete (RAC). The RAC studied mixes were 0, 5, 8 and 10% (by weight of cement) of marble fillers respectively. Direct tests of compressive and flexural strength and non-destructive testing (NDT) (rebound hammer, ultrasonic) were performed. The optimal content of 5% marble fillers showed an improvement for both used test methods (compression, flexion ...
Autori: Larbi Belagraa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27240

The sustainable development (SD) mode is a way by which enterprise behaviors are harmoniously compatible with human health and the environment. The implementation of SD mode amongst manufacturers is better for socially sustainable development. However, the motivation for manufacturers to apply the SD mode is limited in most developing regions. The remedial measures for this problem are studied in this paper. By applying evolutionary game theory mainly as well as empirical analysis, how to promot...
Autori: Jian Cao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27241

The effect of ceria content on the physicochemical properties and catalytic performance of nanostructured CeO2/Al2O3 for removal of toluene from waste gas stream was studied. The properties of the catalysts were addressed using XRD, FESEM, BET, TPR-H2 and FTIR techniques. XRD patterns confirmed the formation of CeO2 with average crystallite size of 7.8-8.7 nm. FESEM images confirmed the presence of fine particles between 25.2-189.1 nm. BET results showed that nanostructured CeO2/Al2O3 had high s...
Autori: Saeed Saedy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27245

Rotifers are known as cosmopolitan organisms, found in high density in most waters, often representing the dominant group in terms of species diversity and abundance in the zooplankton community. Since the functionality of an ecosystem is closely related to the diversity of communities, analysis of rotifers assemblage may be a useful tool in understanding the mechanisms of the spatial and temporal changes on this level. Data were collected from 2008 until 2010, in distinct areas of Danube, Sf...
Autori: Larisa Florescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27247

The Storm Water Flow (SWF) and the Dry Weather Flow (DWF) canals carry composite industrial and municipal effluent (nearly 50,000 m3 d-1) from Kolkata city. Wastewater from SWF and DWF canals is used for pisciculture at the East Calcutta Wetland (ECW) for nearly a century. A wastewater fed pisciculture pond was selected to study the efficiency of the pond in treatment of wastewater. Monthly changes of hydraulic variables viz. inflow and outflow rates, depth, hydraulic loading rates, detention ti...
Autori: Abhishek Roy Goswami
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27255

Anthropogenic influences on the hydrological network in the lower part of the Kolubara River have been notably intensive since 1959, when huge river regulation works were constructed to open new mining fields for lignite exploitation. From that moment, the Kolubara River flowed through the Pestan's riverbed (its right tributary), and the bank erosion became stronger, resulting in the lateral migration of the river course on one hand and land loss, land use changes, and economic consequenc...
Autori: Slavoljub Dragicevic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27257

Sustainability and integration are becoming keywords in many European Union policies, including ones that are directly or indirectly related to mineral resources and waste management. Moreover, life cycle thinking (LCT) is core to many of these policies. The European Commission has issued the Communications “A resource efficient Europe” and “Roadmap to a Resource Efficient Europe”, the stated goal of which is to reconsider the whole life cycle of resource use so as to mak...
Autori: Gian Andrea Blengini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27267

Floods have long been the cause of severe human and economic loss. Structural measures are applied to minimize the consequences of these natural disasters. A potential mitigating approach is the design and implementation of a control strategy for the water network aimed to regulate the water flowing within the river catchment system. There are several tools that have the ability to model and forecast the flood events in water networks. However, some tools are limited in the ability of providing ...
Autori: Phạm Thai Hňa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27278

Changes in the climatic and hydrological variables in North-Eastern Romania indicate that the region has mostly a common evolution in terms of precipitation and hydrostatic level of groundwater. This can influence human communities in the region, given that sources of public water supply are predominantly from underground. In the analysed region with more than 8.000 sqm, 50% of the population lives in the rural area, where the main water supply source is provided by the underground water, mainly...
Autori: Ionuț Minea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27284

Analyzing and reducing the possible effects of air pollution on human health became important issues for improving the quality of life in urban areas. Particulate matters (PM) are air pollutants with a potential important impact on human health of vulnerable people (e.g., children, elderly) and non-vulnerable people as well. The level of PM air pollution is mainly influenced by the PM concentration and parameters such as meteorological conditions and synergic effects of other air pollutants. The...
Autori: Mihaela Oprea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27286

This paper presents the results of a scientific study on industrial emissions based on requirements of the European Directive 2010/75/EU and Law 278/2013 referring to the minimization of greenhouse gas emissions into the environment. In this context, our study was focused on the decrease (in terms of environmental protection) of gas emissions generated by an installation for thermal desorption belonging to a commercial agent by adjusting its tunings after performing emission measurements. The in...
Autori: Angelica Călămar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27287

Environmental issues have received ascending attention in recent years due to the increase of their negative effects. Greenhouse gas emission levels have experienced an exponential increase in the last decades mainly on account of the development of the building sector. Life cycle assessment (LCA) of buildings is a proper tool to analyse the full environmental impact during their designed lifespan. Inventory databases have a shortage of local parameters in some countries and need to be developed...
Autori: Iosif Boros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27289

This study presents the results obtained in tailoring thin films of alumina, deposited onto aluminium substrates by spray pyrolysis, at 250°C, using AlCl3 solutions (0.15M) in a water:ethanol (1:1) solvent mixture. As morphology controlling agents, acetylacetone and maleic acid based copolymers are added in the precursors’ solutions. The precursors’ systems are analyzed by FTIR spectroscopy and the surface morphology of alumina thin films is investigated by atomic force microscop...
Autori: Luminita Isac
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27291

Paintings signed by Nicolae Grigorescu and Stefan Luchian, exponents of Romanian Modern Art were selected for a technical study on easel painting canvases. Both the physical integrity and the appearance of the artefacts derive mainly from the strength of the canvas and the physical and chemical characteristics of the fibres imparting their response to deterioration. In order to determine a deterioration pattern for canvases subjected to environmental stress, a simulation on flax fibres samples w...
Autori: Maria Geba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27292

The purpose of the reservoir operation during flood period is to obtain the outflow hydrograph as flat as possible. Although simple in case of a unique reservoir, the problem becomes very complex for large systems with cascade reservoirs. Based on the well-known hydraulic software Mike Flood by DHI, a simulation-optimization model containing wave propagation equations, constraints related to the state or decision variables as well as an objective function were developed for obtaining optimal coo...
Autori: Aurelian Florentin Draghia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27295

According to literature, aggregate stability of soils is influenced by: particle size and soil texture, soil structure, content of Ca2+ and Mg2+, mineral clay type, soil content of organic matter, soil processing degree. This paper aims to investigate the influence of some physical, microbiological and chemical properties of saline soil concerning water-stable aggregate. The hydro system stability of the aggregates appears in the specialized studies as having a positive correlation with microorg...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27300

Construction industry uses a huge quantity of traditional and modern building materials which generally are produced to satisfy different demands, such as: resistant and safety requirements, friendly with the environment, architectural aspects etc. Researches must solve any requirements related to materials properties and offer a large diversity from which the proper solution must be considered. For improving the mechanical properties of polymer concrete, the use of fibers of different types is ...
Autori: Vasilică Ciocan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27306

Considering the actual environmental issues, the waste management has become a major challenge in Europe and worldwide. Recycling the waste into sustainable products can be an alternative to landfill with positive effects on the costs and environmental pollution. In this respect, in the last years numerous studies and research emphasize the utilization of different type of waste to obtain materials for building applications. The aim of this paper is to assess the effect of using sewage sludge ge...
Autori: Petronela Nechita
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27315