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

Include urmatoarele articole� Degradation of alcian blue 8 gx by heterogeneous and homogeneous photocatalytic processes� Evaluating the performance of solid waste management models� Bioreactors with stirred bed of immobilized cells 1. Studies on mixing efficiency� Fugitive emissions estimation from petroleum storage tanks� New Ni(II) coordination polymers with insulating and anticorrosive properties� Determination of water quality deterioration at pilgrimage centre along river netrav...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25196

Abstract Hydrogen could be considered a synthetic secondary power carrier fuel in the years to come, subsequent to the fossil fuels economy. Thus the concept 'hydrogen economy' shall be defined, and it will also have a great influence in the future years.The field of power generation (producing electric power), transports, (electric cars), chemistry (hydrogen is a major raw material) are potential users of hydrogen.The experts support, by means of a series of economical and strategic analysis ma...
Autori: Corina Rădulescu, Elisabeta Păsculete, Florentina Condrea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25111

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

In recent years the removal of toxic substances especially heavy metals from water and wastewater by using of non-conventional low-cost sorbent (industrial wastes and some natural material including microorganisms, plant-derived materials, agricultural products and by-products, mineral oxides, clays) has received much attention. In this paper efficiency of Zn (II) removal from aqueous solutions by sorption onto Romanian sphagnum peat moss was studied in batch experiments involving process parame...
Autori: Angelica Kicsi, , Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25126

A number of corporate management tools have been developed during the last decades. This has given the impression that industry is in the lead for developing a more environmentally sound and sustainability-adopted future as concerns the production and the products they are working responsible from. This paper includes a short review of some key tools, including cleaner production assessments, life cycle assessments, environmental management systems, environmental management accounting and variou...
Autori: Thomas Lindhqvist
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25148

Actual trends in papermaking concern on the use of recycled fibers and minimizing effluent volume by closing water circuit. Beside environmental and economic advantages, both trends can lead to serious problems in papermaking processes due to contaminants introduced with recycled fibers and their accumulation in closed water system. A key factor to avoid disturbances in the papermaking is to prevent the accumulation of detrimental compounds. In this respect, first it is necessary to find out met...
Autori: Dan Belosinschi, Elena Bobu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25134

AbstractCatalysts having mobile electrons in bulk such as metals and semiconductors are good solid materials for red/ox type of reaction (oxidation) and can be effectively used in gas sensing devices as well. The aims of this work were: (i) to investigate the surface behavior of Pt(0.28%)/Al2O3 and SnO2(2.94%)-Pt(0.28%)/Al2O3 samples in inert atmosphere (He) and in reducing atmosphere containing helium-cyclopropane gas mixture under ambient condition (i.e., room temperature, atmospheric pressure...
Autori: , Cornel Munteanu, Jozsef Kovacs, Mariana Scurtu, Monica Caldararu, Tatiana Yuzhakova
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25146

AbstractLead is unique among the toxic air contaminants that the World Health Organization (WHO) has identified it in several ways. Lead concentration is increasing rapidly in the environment due to increased use in anthropic activity. Lead is released into the atmosphere from metallurgy and siderurgy industry, during coal burning, oil or wastes, from power plants which use solid fuel, from traffic and the building sites. Regardless the exposure mode, the presence of lead in urban air, even in r...
Autori: Alina Murariu, Aurelia Meghea, Aurelian Stanescu, Ioana Lacatusu, Mihaela Mihai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25205

In this work, the ability of Romanian peat for sorption of Pb (II) ions from aqueous solution has been determined using the batch experimental techniques. The sorption equilibrium has been studied at different pH values. The equilibrium adsorption level was determined to be dependent of the pH of solution and initial Pb(II) concentration.The equilibrium adsorption capacity of Romanian peat sorbent for lead has been described by seven types of mathematical model isotherms, namely: Freundlich, Lan...
Autori: Brindusa Robu, Corneliu Cojocaru, Laura Bulgariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25160

Contain all the articles from this issueICEEM /01 PLENARY CONFERENCETen years of Environmental Engineering and Management education and research at the Technical University of IasiMatei Macoveanu, Carmen Teodosiu ICEEM/01  - Environmental Engineering SectionRemoval of nitrogen oxides from Diesel exhaust: Laboratory studies for development of an SCR-catalyst-system using solid urea as reducing agentWerner Weisweiler High temperature desulphurization of hydrogen sulphide containing ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25167

Contain all the articles from this issueICEEM/01 -- Environmental Engineering SectionThermodynamic and kinetic study of gas desulphurization by adsorption on zeolites  Ion Untea, Dan Brasoveanu, Madeleine Dancila, Szidonia Bocskor Mixed oxides derived from vanadium substituted layered double hydroxides as catalysts precursors for SO2 oxidationGabriela Carja, Ionel Popa, Gabriela Ciobanu, Nicolae Aelenei The impact of energy production on environment in RomaniaCarmen Zaharia, Mioara Sur...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25168

Contain all the articles from this issue:ICEEM/01 -- Environmental Management Section Corporate environmental competence: A concept for characterising and assessing the environmental practice in companies and product chainsMichael S?¸gaard J?¸rgensen, Marianne Forman Life cycle assessment of some alternatives for the supply of thermal energy in the municipality of Iasi (Romania).Nicolae Peiu Management options for the industrial and municipal wastes in the city of Iasi Carmen Teod...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25169

Contain all the articles from this issueEnvironmental analysis by capillary electrophoresis. Atmospheric samplesCamelia Draghici, Gheorghe Coman, Mihaela Sica,Dana Perniu, Mihaela Badea   The ecological farms - A solution for sustainable agriculture. II. Position and perspectives of the ecofarms in the frame of the productive agricultural system Stela Axinte, Alina Stanciu, Lorica Axinte  The extraction and clean up of organochlorine pesticides and PCB's from water using solid phase ex...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25170

Plants as biomarkers, biosensors and biomonitorsModelling of wastewater treatment of a pulp and paper mill for monitoringCatalysts for heterogeneous photocatalysts. Part I. Possibilities to improve photoefficiency through catalysts modificationThe global assessment method of the water qualityAspects regarding the wood certification in RomaniaDecolorizing of pulping effluents by ammonium lignosulphonate oxidationPowder coatings-based organic filmsOn environmental effects of the pulp and paper mil...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25172

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 issueCatalysis for heterogeneous photocatalysis. Part II. Methods for synthesisAnca Florentina Caliman, Ion BalasanianpH influence on sonochemical degradation of cyanides with H2O2 and O2Ioan Iordache, Mircea Teodor Nechita, Nicolae Aelenei, Gabriela Apostolescu, Ioan Rosca Studies of various wastewater nitrification bioreactor types based on modelling and simulationDiana Lupasteanu, Florina Ungureanu, Maria Gavrilescu Wastewater from winemaking industry: monit...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25175

Contain all the articles from this issueCatalysis for heterogeneous photocatalysis. Part II. Methods for synthesisAnca Florentina Caliman, Ion BalasanianpH influence on sonochemical degradation of cyanides with H2O2 and O2Ioan Iordache, Mircea Teodor Nechita, Nicolae Aelenei,Gabriela Apostolescu, Ioan RoscaStudies of various wastewater nitrification bioreactor types based on modelling and simulationDiana Lupasteanu, Florina Ungureanu, Maria Gavrilescu Wastewater from winemaking industry: monitor...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25179

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

Include urmatoarele articole:� Removal of persistent organic pollutants from textile wastewater by membrane processes� Sustainability evaluation of an urban residential settlement� Removal of zinc (II) from aqueous solutions by romanian sphagnum peat moss� Development trends of cold plasma reactors in the global context of carbon emission reduction� Assessing the potential of wind power in Romania within Kyoto targets� Research on the impact induced in the environment by milk process...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25198

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

? Kinetics considerations concerning the oxidative degradation by photo-fenton process of some antibiotics ? Catalytic wet hydrogen peroxide oxidation of 4-chlorophenol over iron-exchanged clays ? Researches on the negative effects assessment (slugging, clogging, ash deposits) developed at the biomass-coal co-firing ? Contribution to the study of the environmental heritage of a former chemical plant ? Impact of chemicals on derivatives with important therapeutic activity in C...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25376

Iinclude urmatoarele articole:â€? Phenol degradation in water through a heterogeneous photo-fenton processâ€? Study concerning the influence of oxidizing agents on heterogeneous photocatalytic degradation of persistent organic pollutantsâ€? Nonmarket valuation of acequias: Stakeholder analysisâ€? Metals concentration in soils adjacent to waste depositsâ€? Polyelectrolyte - surfactant complexesâ€? Modelling of sorption equilibrium of Cr(vi) on isomorphic substituted Mg/Zn-Al - type hydrotalcitesâ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25206

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:� Synthesis of Ferrierite/ZSM-35 type zeolite with ethylenediamine as template� Recovery of p-hydroxybenzoic acid from wastewaters by reactive extraction 1. Extraction mechanism and influencing factors� Relationships between metals extent and cytological characteristics at Prunus persica L. pollen� Smoke Emissions From Diesel Vehicles: A Case Study� Carbon dioxide generation - implications for romanian pulp and paper industry � Enhanced decolorization of ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25208

AbstractIn this paper, the application of the heterogeneous photocatalysis in degradation of a cationic copper phtalocyanine dye, used as model of persistent organic compound is investigated by assessing the efficiency of the process. The influence of hydrogen peroxide on the photocatalytic process is studied using two types of commercial catalysts, such as TiO2 Degussa (88% anatase, 20% rutile) and TiONa Millennium (100% anatase). Another electron acceptor, FeCl3 is also used for investigation ...
Autori: Anca Florentina Caliman, , , Ioannis Poulios, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25211

AbstractThis paper dealt with Cr(VI) sorption on isomorphic substituted Mg/Zn-Al - type hydrotalcites under proper working conditions. The prepared samples were named Mg3Al, Mg2ZnAl, Mg1.5Zn1.5Al, MgZn2Al and Zn3Al. The experimental data concerning sorption isotherms were modelled in accordance with four equilibrium equations: Langmuir (L), Freundlich (F), Langmuir-Freundlich (L-F) and Redlich-Peterson (R-P) by using two ways: (i) estimation of qmax, K and n; and (ii) estimation of K and n, for ...
Autori: Aurel Iovi, Eveline Popovici, Laura Cocheci, Rodica Pode
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25215

AbstractThe mineralization of acidic aqueous solutions with 0.166 to 1.333 mM Crystal Violet (CV) in 50 mM Na2SO4 as background electrolyte has been studied by the electro- Fenton method, where the oxidizing hydroxyl radicals were produced from the Fenton reaction between added ferrous ions and hydrogen peroxide generated at a oxygen- diffusion cathode. The influence of a new operating factor on the mineralization degree has been investigated: anode material (platinum versus boron doped diamond)...
Autori: Carmen-Ionela Alexandru, Eric Brillas, Ilie Siminiceanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25229

AbstractCadmium is listed by US-EPA as one of priority pollutant and as a known carcinogen, and therefore its removal from wastewaters of various industrial processes is a very important environmental problem. The paper analyzes the effectiveness of a Romanian sphagnum moss peat as available and cheaper sorbent in removal of Cd (II) from aqueous solutions. Batch sorption experiments were carried out in order to establish the influence of solution pH, peat dose, contact time and initial cadmium c...
Autori: Catalin Balan, , Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25231

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

AbstractDespite its well known toxic effects, lead continues to be a part of modern life. Lead concentrations in the environment have increased steadily throughout history, with a huge increase when lead became a common additive to paint and gasoline. Although the use of lead in gasoline and most paint has been banned in many countries, there are still many ways for lead to be released on the environment. The effects of lead on human health have been the subject of significant international exam...
Autori: Alina Murariu, Aurelia Meghea, Ioana Lacatusu, Mihaela Mihai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25244

AbstractThe health effects caused by air pollutants may range from slight biochemical and physiological changes to difficulty breathing, wheezing, coughing and aggravation of existing respiratory and cardiac conditions. This paper presents an experimental study of air quality in the city of Tg. Jiu, Gorj County, by evaluating the air-floated powders of the PM10 fraction and lead from air. The analysis was performed by measurements in sampling points using the method presented in the European Nor...
Autori: Camelia Capatana, Claudia Maria Simonescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25247

AbstractA comprehensive characterization of fly ash from Iasi, Romania has been carried out in order to set up the utilization potential of fly ash resulting in appreciable amounts from thermal power plants as a waste, which leads to soil and groundwater contamination, as well as atmospheric pollution. This fly ash can be classified on the base chemical and technological properties in F class. Having in mind the assignment of the processing conditions, the fly ash can be used as sorbent for poll...
Autori: , Maria Harja, Marinela Bărbuţă, Nicolae Apostolescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25259

AbstractIn this study, we follow the chrome distribution and his association forms with mineral and organic components, from 14 soilsamples from industrial zone of IaÂ?i city.The total chrome concentration in studied soil samples varied between 11.73-129.35 μg/g, being lower than the normal values only for four samples. The Cr(VI) weight of total chrome content varied between 3.78-14.52 %. For none of studied soil samples the chrome content is not over to value of alert concentration. The q...
Autori: Constantin Rusu, Doru Juravle, Dumitru Bulgariu, Laura Bulgariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25260

AbstractAdvanced closing of paper machine circuits results in the accumulation of the dissolved and colloidal substances (DCS) in the process water. At a critical concentration, the DCS are destabilizing even by small variations in paper machine parameters, producing operational and product quality problems. This article presents results of lab experiments simulating the process water recycling in short circuit of paper machine, without and with addition of fixing agents. Tests were performing w...
Autori: Dan Belosinschi, Elena Bobu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25261

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

AbstractEnvironmental pollution has posed and continues to cause specific to and complicated problems. The unsustainable production and consumption patterns result in waste that can harm health and the environment. Because of rapid population growth and urbanization, industrialization process and rural to urban migration, solid waste management is becoming more and more critical now, being a problem in rapidly growing urban centers in developing countries. All these threaten the health and well-...
Autori: Abdelnaser Omran, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25275

? Denitrifying activity of activated sludge in suspension and in biofilm? Denitrifying potential of an activated sludge derived consortium? Biosorption of hexavalent chromium based on modified Y zeolites obtained by alkali-treatment? Identifying anaerobic digestion models using simultaneous batch experiments? Olive mill wastewater as a renewable resource? Influence of innoculum acclimation in the biodegradation rate and estimated biodegradbility of cow manure, food waste and oil? Studies on the ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25378

AbstractBiosorption an alternative process is the uptake of heavy metals from aqueous solutions by biological materials. The biosorption of nickel ions from aqueous solution was investigated by Nordmann fir (Abies nordmanniana (Stev.) Spach. subsp. nordmanniana) in a batch adsorption system as a function of pH, initial metal concentration, biomass dosage, contact time. The data showed that the maximum pH for efficient sorption of Ni(II) was 6.5. At the optimal conditions, Ni(II) ion biosorption ...
Autori: Handan Ucun, Ozkan Aksakal, Yusuf Kaya
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25295

AbstractThis paper presents the connection between the heavy metals concentration in soil and their bioaccumulation in lettuce. Lettuce is a very good bioaccumulator of heavy metals and nutrients. In general, plants manifest a certain reaction to increasing the toxic metal concentrations in soil which they are cultivated on. The differences depend on plants sensitivity, and time exposure intensity (concentration of heavy metals, cultivation length, etc.), presence or absence of nutrients and oth...
Autori: Ana-Irina Smical, Elena Pop, Jozsef Juhasz, Vasile Hotea, Vasile Oros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25299

AbstractA greenhouse experiment was conducted to determine the phytotoxic effect of heavy metals such as Cd, Cu, Ni, Pb and Zn on the growth of Sunflower (Helianthus annuus): on the seed germination, root/shoot growth and uptake of metals in soil-vermicompost media. The selected metals were dosed at various concentrations ranging from 0, 5, 10, 20, 40 and 50 ppm separately in soil - vermicompost media (3:1) in pot experiment. The seed germination, root and shoot growth were found significantly a...
Autori: Chhotu D. Jadia, Madhusudan H. Fulekar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25306

AbstractThe sorption of Pb(II) and Hg(II) ions from aqueous solutions by moss peat (from Poiana Stampei, Romania) was studied in a batch system. The data obtained from experiments of a single-component sorption were analyzed using Langmuir and Freundlich models. The Langmuir equation describe sorption isotherm of Pb(II) and Hg(II) with high correlation coefficients, and better than Freundlich model. According to the Langmuir model, the maximum uptake capacities of moss peat for Pb(II) and Hg(II)...
Autori: Dumitru Bulgariu, Laura Bulgariu, Matei Macoveanu, Mioara Răţoi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25311

Include urmatoarele articole:� Biomass - A source of chemicals and energy for sustainable development � Equilibrium study of Pb(II) and Hg(II) sorption from aqueous solutions by moss peat� Wood-based epoxy resins and the ramie fiber reinforced composites� Studies on the interaction between birch veneer and compounds with biocide potential action� Effect of methanogenic inhibitors, inocula type, and temperature on biohydrogen production from food components� Energy from biomass in pul...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25313

AbstractThe Romanian strategy in the field of irrigations for the years of 2008-2011 consists of the modernization of the existing works covering about 3.1 mil. ha, while for the years of 2011-2025 the irrigation of additional area of 0.9 mil. ha is expected. In the climate conditions of Romania, the irrigation has a complementary character over the precipitations. Because of this reason, a correct regime of irrigations needs a very good correlation between watering and precipitations in order t...
Autori: Dorin Cotiusca Zauca,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25317

AbstractDrinking water treatment plays an important role in maintaining public health. Chlorine is the most often disinfectant used for microbiological protection of water. Required residual chlorine concentration must be in treated water when it leaves treatment plant, to comply with the regulations. The chlorine residual must be 0.5 mg/L at the entrance into the distribution system and 0.25 mg/l at consumers, according to the law. Any less and there is no guarantee that the water has adequate ...
Autori: Dan Robescu, Diana Robescu, Nicolae Jivan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25328

AbstractNatural hemp fibers have been evaluated for Zn (II) ions sorption from diluted aqueous solutions. In order to establish the optimum conditions, the effect of initial pH of solution, hemp dose, Zn (II) concentration, temperature and contact time of phases on the Zn (II) sorption by natural hemp has been studied. To model the Zn (II) sorption at three different temperatures the Langmuir and Freundlich isotherms have been used. The Langmuir maximum sorption capacities were determined as bei...
Autori: Carmen Paduraru, Lavinia Tofan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25336

Include urmatoarele articole:� Composite membranes with cross-linked matrimid selective layer for gas separation� Determination of organic compounds from different types of coffee by Hplc and Gc-Ecd analysis� An integrated assessment of the suitability of domestic solar still as a viable safe water technology for India� Investigations on the possibility of natural hemp fibers use for Zn(II) ions removal from wastewaters� Removal of acid red 398 dye from aqueous solutions by coagulation...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25340

AbstractThe study on the distribution of oxygen transfer rate in a stirred bioreactor for Propionibacterium shermanii broths underlined the major influence of the presence and concentration of biomass on the interphasic transfer of oxygen. Owing to the bubbles surface blockage by the bacterial cells, the accumulation of biomass from 30.5 to 120.5 g/l d.w. led to the decreasing of kla for about 1.3- 2.4 times. Compared with the simulated broths without biomass having similar apparent viscosity, t...
Autori: Adina Segneanu, Anca-Irina Galaction, Dan Caşcaval
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25364

Include urmatoarele articole:� Environmental Engineering and Management Journal, Vol. 8 Nr. 2� Bioengineering aspects of tissues culture bioreactors for medicine and environmental applications� Removal of bis (1-chloro-2-propyl) ether from wastewater using sonodegradation and biodegradation� A novel plasma reactor for toluene decomposition in contaminated air flow� Study of the copper (II) removal from aqueous solutions by chelating resin Purolite S930 � Analysis of some metal levels...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25371

â€? Bioremediation of contaminated air using a bioscrubberâ€? Quality risk evaluation of the groundwater resources on the moldavian areaâ€? Electrochemical characterization of some dental materials in accelerated environmental testingâ€? Preliminary study of simple and Fenton oxidation with hydrogen peroxide applied on final effluents from a zootechnical farmâ€? The environmental impact assessment caused by the dykes failureâ€? Revaluation of beer industry byproducts – medical implicationsâ€? ...
Autori: http://www.ecozone.ro/reviste.php?RID=25372

� Physiological changes in seedling germination and growth plant under chemical stress conditions� Studies on sorption and transport processes of cadmium in soils� Assessment of the anthropogenic impact on water systems by fluorescence spectroscopy� Research on the effects of soil improvement by fertilization on the quality of winter wheat� Halotherapy: From ethnoscience to scientific explanations� Study regarding the sorption of erythrosine from aqueous solution onto soil� Hydroxy...
Autori:
ISSN: 1582 - 9596
http://www.ecozone.ro/reviste.php?RID=25375

AbstractThe lead(II) ions sorption from aqueous solutions on three types of peat from Poiana Stampei (Romania) was studied. The peat was drawing from different deeps, such as 5-10 cm deep (peat 1), 0.5-1.0 m deep (peat 2) and from > 1.5 m deep (peat 3). The influence of several experimental parameters (initial lead concentration, contact time) was studied in batch experiments. The kinetics of sorption was followed based on the amount of lead(II) ions retained at various time intervals. The re...
Autori: Laura Bulgariu, Mioara Răţoi, Dumitru Bulgariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25389

Abstract The efficiency of Cd (II) removal from aqueous solutions was investigated using Sphagnum moss peat as sorbent. A 23 orthogonal central composite design was successfully employed for experimental design and analysis of results. The combined effect of the initial solution pH, peat dosage and initial Cd (II) concentration was studied and optimized using Response Surface Methodology (RSM). The optimum values of these variables were found to be pH = 4.72, 14.7 g peat /L and 13.64 mg Cd /L, ...
Autori: Catalin Balan, Corneliu Cojocaru, Petru Bulai, Doina Bilba, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25399

Abstract This work examines the influence of experimental conditions on the copper (II) ions removal from aqueous solutions using chelating ion exchange resin Purolite S930. The influence of solution pH, initial metal concentration, contact time, temperature, ionic form of the resin and resin dose was studied in batch experiments. The percent of Cu (II) removal has a maximum at pH 5.0 (buffered solutions), and increases with the increasing of resin dose, of the contact time and of temperature...
Autori: Petru Bulai, Catalin Balan, Doina Bilba, Matei Macoveanu
ISSN: 1582 - 9596
http://www.ecozone.ro/reviste.php?RID=25401

Abstract This paper presents a comparative study of natural and mechanically mixed composting processes of marc resulting as a byproduct during the production of alcohol obtained from fermented fruits. Moisture, temperature, pH values, soluble fraction, total organic carbon, Kjeldahl nitrogen and ash content were monitored for 60 days. During this period the atmospheric temperature varied from 18Â?C to 21Â?C. The composting process could be considered a combination of three stages: mesophilic...
Autori: Anca-Ileana Penu, Daniela Simina Stefan, Mircea Stefan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25407

Abstract The etching of iron materials in sulphuric acid solutions allows the dissolution of the iron oxides with formation of iron sulphates. The relatively low solubility of the formed sulphates imposes their separation for avoiding the contamination of the etching bath, as well as for preventing the environmental pollution through the wastewater. Within the flow sheet of the processing of the hot or cold rolled steel, a stage of separation by crystallization of iron sulphate is foreseen. T...
Autori: Liliana Lazar, Ion Balasanian, Florin Bandrabur
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25415

Abstract Study of geopolymer is a developing field of research for capitalizing solid waste and by-products in the view of new materials achievement having characteristics necessary for using as cement substitute. Also, it provides a solution to many problems regarding environment, such as reduction of gaseous emissions and particles matter resulted from cement industry and raw materials economy. In this paper, the experimental conditions for obtaining new materials on the basis of fly ash f...
Autori: Maria Harja, , Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25419

Abstract Knowledge-based society, sustainable development, and digital technology as concepts of the contemporary times that stem from the responsibility towards the future of mankind, are the results of intense scientific research. As a consequence of its commitment of turning Europe into the world's most dynamic and competitive knowledge-based economy, and aware of the role played by research in the development the human society, the EU has defined at Lisbon in 2000 the framework of action ...
Autori: Carmen Cătălina Ioan, Maria Ileana Carcea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25421

Abstract Changing the working space by introducing some radiant panels has the purpose of intensifying the heat transfer by convection and radiation. By centralizing the experimental results, has been obtained an energetic saving of 28.67 – 32.74 % by using radiant panels; the heating speed of the charge raises with almost 50 % and the heating time of the charge decreases. In conclusion, changing the working space by introducing some radiant panels inside the furnace leads to important ener...
Autori: Alina Adriana Minea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25426

Abstract The photocatalytic degradation of sulfamethazine, a sulfonamide drug, has been investigated experimentally, in aqueous heterogeneous solutions containing n-type oxide semiconductors as photocatalysts, and by simulation, using neural network modeling. Through direct neural network modeling, the evolution of the photocatalytic oxidation process is evaluated as function of illumination time and type of catalyst. Inverse neural network modeling is a particular optimization that gives inf...
Autori: Ciprian George Piuleac, Ioannis Poulios, Silvia Curteanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25430

Abstract The studies of Cu (II) adsorption were conducted by testing various sawdust types. Two biomass, oak sawdust wood (Querqus robur) and white poplar sawdust wood (Populus alba), have been compared considering their efficiency for copper removal from diluted water solutions. Raw sawdust proved no efficiency in adsorption. Therefore, pre-treatment processes were developed and optimized, to enhance the sawdust affinity for heavy metals adsorption. The optimized pre-treatment conditions are...
Autori: Dora Lucaci, Anca Duta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25460

Abstract Herbs have been used as food and for medicinal purposes for centuries. In recent years, natural compounds such as phenolic acids, phenolic diterpenes and triterpenes, present in various plants, have been the subject of intense research due to their potential benefits for human health. It has been demonstrated that the antioxidant and radical scavenge activities are the main properties of these compounds. The main difficulties in using natural products as a source for pharmaceutical ...
Autori: Ruxanda Bodirlau, Iuliana Spiridon, Carmen Alice Teaca, Narcis Anghel, Maria Ichim, Svetlana Colceru , Alice Armatu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25474

Abstract The paper presents a case study developed within the Danube Environmental Center from the Romanian University â€?Gheorghe Cristea?? of Bucharest. This center is targeted toward linking the material science with the sustainable development concepts, in order to move the awareness of the community alongside sustainable development, as a leading concept of the European development, which becomes essential for the new members as well, in the environmental education field, the geopo...
Autori: Lidia Cristea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25489

Abstract The evolution of the request in wood production leads to larger stem wood consumption, intensive harvesting and consequently the environmental impact increases. One of the most ignored secondary resources in spite of limited reserves, branch wood could be used in new added value products as an alternative to stem wood, providing its characteristics are known and understood. This paper is part of a larger research project, which here compares the compression strength parallel to the g...
Autori: Lidia Gurau, Marina Cionca, Cristina Timar, Alin Olarescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25492

Abstract Bioremediation of heavy metal contaminated soil is one of the major concerns of our days. Phytoextraction has been lately utilized as an alternative of in situ remediation technology for polluted soils but is generally perceived to be too slow. Even so, phytoextraction is an efficient long lasting, accessible and environmentally friendly technique. The aim of this paper was to evaluate the phytoextraction potential of bean (Phaseolus vulgaris) in stress conditions induced by heavy me...
Autori: Alina Stingu, Irina Volf, Valentin I. Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25508

Abstract The rationality of allotting the resources for investments in sustainable agriculture needs the selection of alternative projects depending on numerous factors. The decision analysis process allows the identification of one variant with the highest utility that corresponds to the exigencies of economic, social and environmental impact efficiency. The integrated approach of the objectives specific for sustainable development actually leads to the selection of the investment portfolio ...
Autori: Camelia Burja
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25512

Abstract The paper focuses on occupational hazards and the determination of risk levels. Indoor climate, lighting, noise, chemicals and dust are examined. A simple/flexible risk assessment method is provided. The results of measurements of occupational hazards in six industries (mechanical, printing, wood, plastic, clothing and water purification plants) in Estonia are presented. The overall purpose of the paper is to draw the attention to the importance of measurements of occupational hazard...
Autori: Piia Tint, Marina Jarvis, Karin Reinhold, Onnela Paas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25521

Abstract Worldwide, tourism is the fastest growing major industry, but not all consequences are positive. This has lead to a growing attention for â€?sustainable tourism’. Compared to international guidelines, the current governance for sustainable tourism in the Netherlands proves to be very weak. Is this just because of stakeholders’ interests and their motivation to protect and conserve, on the one hand, or just encourage growth, on the other? We find some support for this, but also fi...
Autori: Hans Bressers, Valentina Dinica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25530

Abstract The presence of heavy metals in the environment is a major concern due to their non-biodegradability, bioaccumulation tendency, persistence in nature and toxicity to many life forms. Different treatment techniques for wastewater laden with copper have been developed in recent years to decrease the amount of wastewater produced and to improve the quality of the treated effluent. All techniques have their advantages and limitations in application. One of the most used techniques to rem...
Autori: Petru Bulai, Catalin Balan, Camelia Scripcariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25531

Abstract Peat moss has been widely used as low-cost adsorbent to remove a variety of pollutants, including organic compounds and metal ions from aqueous effluents. Various functional groups allow such compounds to bind on active sites of peat moss. The adsorbent used in this study was Romanian peat moss sampled from Poiana Stampei (Romania). The adsorption of Co(II) ions from aqueous solutions on Romanian peat moss was studied in batch experiments, in order to establish the influence of initi...
Autori: Corneliu Caramalau, Laura Bulgariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25533

Abstract The paper makes qualitative and quantitative analyses of heavy metal contamination of surface waters in Iasi City. The examination of data acquisited from the specific sections of the rivers Bahlui (upstream section, Iasi water treatment plant, Holboca section, downstream section, Iasi water treatment station), Nicolina (quarterly data from the established monitoring system) was performed, based on data provided by the Environmental Protection Agency of Iasi District and Prut Water D...
Autori: Corneliu Horaicu, Florea Cornel Gabrian, Irina Grozavu, Catalin Constantin Calu, Monica Horaicu, Brindusa Robu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25546

Abstract The aim of the study is to outline new opportunities of improving buildings ambient comfort and thus to determine energy consumption cut down. The second half of the XX century witnessed the development of society disregarding the extent to which environment was affected by the industrial production; pollution was triggered by the widespread industry which made use of technologies whose main target was the increase of production output at any cost, an aggressive industry with respect...
Autori: Vladimir Corobceanu, Răzvan Giuşcă, Raluca Giusca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25549

Abstract The paper examines the effects of high temperature corrosion of the surfaces of heat exchange due to corrosive components formed in the co-combustion of biomass and coal. High temperature corrosion of the surfaces of heat exchange becomes a priority in the combustion of biomass with high chlorine and alkali metals, as alkali chlorides formed deposited on the surfaces of heat transfer, leading to serious consequences for them. Forms of manifestation of corrosion are numerous, the most...
Autori: Ionel Pisa, Corina Rădulescu, Lucian Mihăescu, Gheorghe Lăzăroiu, Gabriel Negreanu, Simona Zamfir, Danut Vairenu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25553

Abstract Transferability process identifies the transportation projects which could be implemented successfully in different cities in order to encourage the good practices. This paper proposes a method to evaluate the environmental efficiency of a project by using a hybrid approach based on utility theory and data mining techniques. Transferability principle is applied to show the environmental efficiency of an access controlled area in the hyper centre of two different cities. COPERT III te...
Autori: Catalin Popescu, Luminita Ion, Tatiana Cucu, Jean-Marie Boussier, Augustin Mitu, Daniela Uta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25560

Abstract The practical capacity of an ion exchange or chelating resin depends on various process variables, such as initial solution pH, initial metal ion concentration, metal/resin ratio, contact time and temperature. This work presents the optimization of process variables to maximize the copper loading capacity of chelating resin Purolite S930. To study the combined effect of the initial solution pH, initial Cu (II) concentration and resin dosage were used a 23 orthogonal central composi...
Autori: Petru Bulai, Catalin Balan, Corneliu Cojocaru, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25563

Abstract In this study the adsorption of cobalt(II) from aqueous solutions on peat (from Poiana Stampei, Romania) activated by simple chemical treatments, was investigated from kinetic point of view. The chemical treatments suppose the mixing of peat with aqueous solutions of common chemical reagents (H2SO4, NaCl and NaOH), without the addition of supplementary additives. An increase of adsorption capacity of peat was obtained in case of treatments with NaCl and NaOH respectively, and this is...
Autori: Corneliu Caramalau, Laura Bulgariu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25571

Abstract This work describes the preparation of a hydroxyapatite/polyurethane composite membrane and their characteristics. The porous hydroxyapatite/polyurethane composite membranes were made via solvent casting process. The deposited hydroxyapatite layers were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The data suggest that the method utilized in this work can be applied to obtain deposition of coating of crystalline hydroxyapatite on porous polyurethane...
Autori: Gabriela Ciobanu, Dorina Ignat, Gabriela Carja, Constantin Luca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25572

Abstract Heavy metals produced and released by anthropogenic activities generate serious environmental problems. Ions of toxic metals can bind to the mineral surface in a number of ways, including absorption, adsorption, precipitation, ion exchange. The paper shows that the fate and migration of heavy metals in soils strongly depend on the physical properties and chemical and mineralogical composition of such environments. Cadmium is one of the most toxic metals with carcinogenic and teratog...
Autori: Vasile Lucian Pavel, Dumitru Bulgariu, Laura Bulgariu, Raluca Maria Hlihor, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25577

Abstract In order to obtain new complexes of Fe(III) with multiple uses, their characteristics, important applications and also the obtaining conditions are studied. The obtaining conditions consist in mixing solutions of the same concentrations of ligand 2 amino-6-methoxy-benzothiazole sulphonic acid??†’1-naphtol-4-sulphonic acid with FeCl3. The solutions are mixed in molar ratios of 1:1, 2:1 and 3:1 (ligand to central metallic atom). For determining the molar ratio ligand:central metall...
Autori: Daniela Zavastin, Doina Sibiescu, Igor Creţescu, Ioan Roşca, Mihaela Dana Tutulea, Mihaela Vizitiu
ISSN: 1843-3707
http://www.ecozone.ro/reviste.php?RID=25581

Abstract This work presentes a study of preparation and stability in aqueous medium of complexes obtained by the reaction between Fe(III) with 2-amino-6-methoxy-benzothiazol-sodium sulphonate ??†’1 naphtol-4-sodium sulphonate. In this purpose, the investigation methods applied were as follows: pH-metry, conductometry, and the UV-VIS spectrophotometry. The molar combination ratio of ligand to central metallic atom, and the stability constants for new obtained compounds were determined usin...
Autori: Doina Sibiescu, Gabriela Carja, Ioan Roşca, Laura Chirila, Mihaela Vizitiu, Romen Butnaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25585

Abstract The removal efficiency of Pb(II) from aqueous solutions by sorption on a bifunctional acrylic ion exchange resin with groups of hydroxamic acid and amidoxime is presented. It was found that Pb(II) sorption potential varies as function of solution pH, initial metal concentration, contact time and temperature. From aqueous solutions with Pb(II) initial concentration of 82.96 ?ŽÂ?g/mL the sorption percentage is 98.64%. The Langmuir and Freundlich isotherms were used to model the Pb(II) ...
Autori: Anca Ceica, Carmen Paduraru, Igor Creţescu, Lavinia Tofan, Violeta Neagu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25586

Abstract Chromium (Cr) is one of the most common metal contaminants in soil because of its use in ore refining, production of steel and alloys, metal plating, tanneries, wood preservation, and pigmentation. In soil environment, the most stable oxidation states of chromium are Cr (III) and Cr (VI). While Cr (III) is considered an essential trace element for the functioning of living organisms, Cr (VI) is toxic and carcinogenic to humans via inhalation for long exposures, since it is easily sol...
Autori: Dumitru Bulgariu, Laura Bulgariu, Maria Gavrilescu, Raluca Maria Hlihor, Vasile Lucian Pavel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25590

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 Despite their success, the so-called Italian Industrial Districts (IIDs) have to face the crisis caused by the phenomenon of globalization. The paper presents the interventions carried out in two industrial districts, tannery district of Arzignano and artistic glass district of Murano, in order to help the public administrations to improve the environmental situation. Introducing strategic and social considerations in environmental initiatives and implementing ?radical? environmenta...
Autori: Flaviano D'Amico, Giulio D'Amico, Ion Tanase, Marian Mihai Buleandra, Mihaela Buleandra
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25603

Abstract Unlike the P. shermanii and S. cerevisiae cultures, the study on the distribution of oxygen transfer in stirred bioreactor for P. chrysogenum free mycelia broths indicated that this process is controlled mainly by the high apparent viscosity of broths, and less by the presence of fungus biomass. For this reason, the influence of fungus accumulation on the reduction of kla is attenuated compared with that obtained for bacterial or yeasts broths. The lower influence of fungus biomass i...
Autori: Anca-Irina Galaction, Dan Caşcaval, Marius Turnea, Stefanica Camarut
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25606

Abstract Some samples consisting in silica functionalized in different degrees with dihydroxy-azomethine groups have been tested as sorbents for copper (II) ions from aqueous solutions in different conditions. An indirect monitoring procedure for the complexing process was approached: UV-VIS absorption intensity ? time variation for the metal-containing solution in which complexing silica was soaked. In order to find the conditions in which the maximum efficiency in the metal absorption can b...
Autori: Ciprian-George Piuleac, Maria Cazacu, Silvia Curteanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25608

Abstract The Schiff base N,N??(salicylidene)-methylenediamine, known as Salmen in combination with Cr(III) forms at pH = 4.5 a greenish precipitate, which is stable at room temperature but decomposed on heating. The study of the Infrared spectra, Electron Spin Resonance (ESR), X-ray diffraction and thermogravimetry has pointed out that the precipitation form is a complex, while the molar ratio showed that the combination rate of Cr(III): N,N?-bis(salicylidene)-methylenediamine is 1:1. The new...
Autori: Doina Sibiescu, Ioan Roşca, Irina Spatarescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25619

Abstract Artificial neural networks (ANNs) are capable of learning the relationships between the dependent and predictor surface water quality variables and have a high ability to predict from the new data set. In this study, two different ANN methods, the feedforward network (FFN) and the cascadeforward network (CFN) were applied to predict two surface water quality variables such as chlorophyll-a (Chl-a) and fecal coliform (FC) using twelve other variables as an input to the models. Both me...
Autori: Hasan Merdun, Ozer Cinar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25623

Abstract As a result of the chemical-analytical studies of the marine environment of the water area of some Black Sea ports it was found that the water content of standardized components - toxins do not exceed their maximum allowable concentration, and the corresponding sediment significantly contaminated with cadmium, lead, phenols, petroleum products....
Autori: Anatoliy Andrianov, Eugeniy Malinovsky, Inna Bezlutskaya, Inna Chebotarskaya, Oleg Nedostoup, Tatyana Kovalchuk, Valeriy Antonovich
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25628

Abstract Regardless of the production branch, advanced closing of water circuits in an industrial unit is a today?s requirement. To fulfill this, an advanced treatment of residual water is needed. Use of both specialized devices and specific chemicals leads to clear water that can be further reused. In this paper, the obtained performances with a unit, which uses dissolving air flotation principles for treating the residual water from a recovered paper de-inking plant, are presented....
Autori: Emanuel Poppel, Nela Dumea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25629

Abstract Equilibrium and kinetics of sorption of Zn (II) ions from aqueous solutions of pH 5 on indigene (Romanian) peat moss were investigated in batch system. The experimental equilibrium sorption data at three temperatures were analysed by Freundlich, Langmuir, Tempkin and Dubinin-Radushkevich sorption isotherm models. Results indicate the following order in to fit the isotherm equations: Langmuir > Tempkin > Dubinin-Radushkevich > Freundlich. The equilibrium sorption capacity determine...
Autori: Angelica Kicsi, Doina Bilba, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25632

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

? POLLUTION PREVENTION, A KEY TO ECONOMIC AND ENVIRONMENTAL SUSTAINABILITY ? A COMPARISON BETWEEN DIFFERENT SCENARIOS OF ROMANIAN MUNICIPAL SOLID WASTE TREATMENT BEFORE LANDFILLING ? A STUDY ON ENERGY CONSUMPTION IN ROMANIA ? ENVIRONMENTAL INFLUENCES ON STRESSED METALLIC SURFACES ? ASPECTS OF HYDRODYNAMICS AND MASS TRANSFER IN DIFFUSED AERATION SYSTEMS ? THE STATUS OF SOME SELECTED HEAVY METALS IN ROADSIDE SOILS OF BURSA PROVINCE, TURKEY ? PREPARATION AND CHARACTERI...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25656

? GREEN SYNTHESIS OF SYMMETRICAL CARBONATE FT-IR STUDY ? SINTERED BASALT AS A PROMISING SUSTAINABLE MATERIAL IN MECHANICAL ENGINEERING ? DESIGN OF BUILDINGS INCLUDING ENVIRONMENTAL IMPACT ? ANALYSIS METHODS FOR PYRAZINE-2,3-DICARBOXYLIC ACID SYNTHESIZED USING ELECTROCHEMICALLY REGENERATED KMnO4 ? RESEARCH ON NaCl SALINE AEROSOLS II. NEW ARTIFICIAL HALOCHAMBER CHARACTERISTICS ? DETERMINATION OF AEROSOLS POLLUTANTS ON MEMBRANES. 1. MEMBRANES PREPARATION AND CHARACTERIZATIO...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25660

? 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

? COMPACT MICROPULSE BACKSCATTER LIDAR: AIRBORNE AND GROUND-BASED APPLICATIONS ? STUDIES OF THE IMPACT OF AEROSOL OPTICAL PROPERTIES ON CLIMATE CHANGE PROCESSES ? A STUDY OF THE AEROSOL OPTICAL PROPERTIES AT TWO AERONET STATIONS FROM ROMANIA ? COMPLEMENTARY ATMOSPHERIC URBAN POLLUTION STUDIES IN THE NORTH-EAST REGION OF ROMANIA, IASI COUNTY ? ?NGSTR?M TURBIDITY IN THE LOWER LAYERS OF THE TROPOSPHERE ? LIDAR MONITORING OF ANTHROPOGENIC POLLUTION AND NATURAL PHENOMENA ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25665

? Environmental Engineering and Management Journal, Vol. 9 Nr. 4 ? THE PROTECTION OF EQUIPMENTS USING VOLATILE INHIBITORS ? CONTINUOUS SURFACE TEMPERATURE MONITORING TO ESTIMATE SENSIBLE HEAT LOSS BY BUILDING FINISHES ? RECYCLE OF POLYAMIDE DYEING WASTEWATER FOLLOWING DECOLORIZATION WITH POLYMERIC SORBENTS ? PERFORMANCE EVALUATION OF AMINO ACID SALT-BASED COMPLEX ABSORBENTS FOR CO2 CAPTURE ? ADSORPTION EQUILIBRIUM STUDIES ON COPPER (II) IONS REMOVAL BY NATURAL WASTE USIN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25666

? HYDROGEL MICROSPHERES BASED ON ENVIRONMENTALLY FRIENDLY POLYMERS WITH POTENTIAL BIOMEDICAL APPLICATIONS ? STUDY ON THE MIXING EFFICIENCY IN A BASKET BIOREACTOR WITH IMMOBILIZED YEASTS CELLS ? MANAGEMENT OF WASTE FROM ELECTRICAL AND ELECTRONIC EQUIPMENT IN CYPRUS ? A CASE STUDY ? SEPARATION AND CHARACTERIZATION OF ANTHOCYANINS BY ANALYTICAL AND ELECTROCHEMICAL METHODS ? AN INTEGRATED DECISION AID FOR IDENTIFYING AND PRIORITIZING STRATEGIES IN FOREST MANAGEMENT ? INFLUEN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25668

? 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

Biosorption of lead (II) onto the biosorbent, represented by untreated S. cerevisiae and NaOH-treated S. cerevisiae was examined and the effects of contact time were investigated. The lead (II) biosorption was fast and equilibrium was attained within 90 mins. The maximum removal ratios of lead (II) for untreated S. cerevisiae and NaOH-treated S. cerevisiae after 3 h were 48.6% and 92.5%, respectively, with initial lead (II) concentration of 40 mg/L and optimum pH of 5.0. Data obtained from batch...
Autori: Ying Zhang, Yingjie Dai, Baiyin Liu, Fang Ma, Ru Zheng, Limin Donghttp://www.ecozone.ro/reviste.php?RID=25670

Chlorine dioxide (ClO2) is widely used as disinfectant in tertiary sewage treatment process. In order to identify the impact of disinfection with ClO2 on treated water quality, secondary effluent pretreated by coagulation was disinfected by ClO2, and the characteristic of dissolved organic matter (DOM) and the biological toxicity of the water before and after disinfection were investigated. The results showed that ClO2 could remove part of DOM and the removal rate of hydrophobic (HO) component b...
Autori: Lihua Cheng, Xuejun Bi, Aihua He, Changqing Liu, Qi Wang, Zuliang Liaohttp://www.ecozone.ro/reviste.php?RID=25692

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:In spite of the large use of batteries throughout the years, both in photovoltaic systems and in other uses, there are still nocomprehensive analyses in ageing studies and, when they exist, statistics turn out to be limited. In this sense, this macro-grid is aunique experience, since the experiment is already composed of 1600 identical stand-alone photovoltaic systems and almost 10years of data taking on 10 minute interval for the main magnitudes.In this paper, it is proposed a method f...
Autori: Angeles López Agüera, Daniel Rey Rey, Iago Rodriguez Cabo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25718

Abstract:The study involved investigating the effects of Cr(III) and the efficacy of powdered activated carbon (PAC) in reducing theinhibitory effects of Cr(III) on activated sludge under sequencing batch reactor (SBR) operation. The addition of Cr(III) into SBRsystem caused significant inhibitory effects on the activity of activated sludge as indicated by drastic drop in specific oxygenuptake rate (SOUR). The increase of Cr(III) concentration from 5 to 10 mg/L further deteriorated the treatment...
Autori: Eiichi Toorisaka, Makoto Hirata, Soon-An Ong, Tadashi Hano
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25773

Abstract:Based on the fuzzy logic principle, a modified Fuzzy Synthetic Evaluation (FSE) is proposed to assess water quality status ofWeihe River (Baoji, China). The potential application of the FSE has been tested in a case study. Twelve sampling locations ofWeihe River and its tributaries in Baoji area were selected and seven water quality parameters of BOD5, COD, fluoride, ammonia,total phosphorus (TP), total nitrogen (TN) and permanganate index, were monitored from 2008 to 2009. The findings...
Autori: Chundi Xu, Jun Zhang, Qi Zhou, Yani Geng, Yaqian Zhao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25780

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 investigation focused on the adsorption of Pb (II) onto Lewatit FO 36 resin from aqueous solutions. The effects of initialmetal concentration, contact time, pH of solution were factors that affected the adsorption of Pb (II). Adsorption kinetic was betterexplained by the pseudo second order type 1 kinetic model that was confirmed by the values (R2>0.986). The Langmuir,Freundlich, Temkin and BET adsorption models were used for the equilibrium studies and Freundlich isotherm bette...
Autori: Alireza Asgari, Azra Setodeh, Mehdi Ahmadi, Mohamad Sedigh Mortazavi, Pari Teymouri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25791

Abstract:There is a growing concern that the Earth’s atmospheric composition is being altered by human activities which can lead toclimate change. Policy measures to reduce carbon dioxide emissions are on the agenda of the International Maritime Organization(IMO) and the European Union (EU). Climate Change is an environmental problem and answers have to be sought among robustenvironmental policies that are often classified in market-based, command-and-control and voluntary instruments. Althoug...
Autori: Christos A. Kontovas, Harilaos N. Psaraftis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25792

Abstract:The adsorption performance of a novel support for metal ions sorption and their removal from aqueous solutions was examined.The support is a new solvent-impregnated resin (SIR) which can be considered as an alternative adsorbent material capable ofselective sorption. The adsorbent was prepared by impregnating di-(2-ethylhexyl)-phosphoric acid (D2EHPA) onto AmberliteXAD7 resin beads, by dry impregnation method. The interaction between XAD7 resin and D2EHPA was evaluated by FTIRspectrosco...
Autori: Adina Negrea, Adriana Popa, Cornelia Muntean, Corneliu Davidescu, Lavinia Lupa, Mihaela Ciopec, Petru Negrea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25793

Abstract:Coconut coir pith, an agricultural solid waste was used for the sorption of Cd (II) from aqueous solution in batch mode. Parameters like contact time, adsorbent dosage and pH effect were studied. Langmuir and Freundlich isotherms were used to model the adsorption equilibrium data and the system followed both the isotherms. Cd (II) adsorption capacity of coir pith was found to be 18.72 mg/g. Kinetic parameters of adsorption such as the Langergren pseudo-first-order, pseudo second order r...
Autori: Nagendra Badabhagni, Puthiya Veetil Nidheesh, Rajan Gandhimathi, Srikrishnaperumal Thanga Ramesh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25800

Abstract:The aim of the present study is the optimization of biosorption conditions using a metal tolerant actinomycete (strain 723) for the removal of lead ions from waste water in batch and dynamic flow mode. The optimum conditions for lead biosorption by the strain were determined as initial pH 3.0, biomass amount 2.0 g L-1, and initial metal concentration 400 mg L-1 in the batch condition. The maximum lead biosorption performance was obtained with a 19 mm diameter column, a 1 mL min-1 flow r...
Autori: Ayşe Betül Karaduman, Maria Julia Amoroso, Mustafa Yamaç, Sergio Antonio Cuozzo, Zerrin Pat
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25811

Abstract:Analysis and debates of the scientific world and regional/local communities led to the conclusion that environmental problems are a global priority. European Union requested Member States the implementation of the Framework Directive specific for each environmental factor. In this context, Romania has pledged to achieve „good ecological status of water bodiesâ€? by the year 2015. The paper deals with the water quality monitoring of the Upper Olt River and the mathematical modeling of ...
Autori: Gabriel-Oreste Sumbasacu, Nicolai Sîrbu, Virgil Petrescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25813

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 removal of Cr (VI) from aqueous solutions by sphagnum peat moss was investigated in batch experiments as a function of solution pH and initial Cr (VI) concentration. The highest removal percentage (R=99%) was obtained at pH = 1, in solutions of 20.8 mg Cr (VI)/L. In order to establish the mechanism of the removal process, Cr (VI) and total Cr (Cr (VI) + Cr (III)) in residual solutions was analyzed. The Cr (VI) removal by the peat moss at low pH is governed by two processes – electrostatic ...
Autori: Catalin Balan, Doina Bilba, Irina Volf, Matei Macoveanu, Petru Bulai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25849

This paper presents a new photo-Fenton procedure applied in oxidative degradation of organic pollutants using 4-chlorophenol (4-CP) as low biodegradable testing compound. The homogeneous photo-Fenton process was modified by using a photo-catalytic reactor equipped with a steel wire mesh which acts as source for Fe2+ catalyst generation into reaction medium and as heterogeneous catalyst, by iron oxy-hydroxyl compounds formation on the surface. The oxidation process was evaluated by measuring the ...
Autori: Adina-Elena Segneanu, Cristina Orbeci, Ion Untea, Mihaela Emanuela Craciun, Rodica Stanescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25864

Chromium and cadmium are heavy metals that occur naturally in the environment and especially in soils. Their toxic effect is more pronounced at high concentrations and it depends on the oxidation states. While Cr (III) is considered an essential trace element for the metabolism of living organisms, Cr (VI) has a higher mobility and is easily soluble in soils and can be leached into surface water or groundwater, and taken up by plants. That leads to a toxic and carcinogenic effect to humans via i...
Autori: Dumitru Bulgariu, Florian Statescu, Maria Gavrilescu, Mariana Diaconu, Vasile Lucian Pavel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25866

The metal sensitivity and selectivity of two fluorescent proteins was investigated. The studied proteins are mutant forms of the red fluorescent protein (DsRed); according to our results, both proteins showed sensitivity to the presence of copper[II] and nickel ions. The fluorescence intensity of the proteins has decreased significantly in the presence of copper ions in the micromolar range. Metal binding by these proteins is a reversible process, as addition of a chelating agent liberates the b...
Autori: Beata Abraham, Ildiko Miklossy, Judit Petres, Laszlo Szilagyi, Maria Szabo (Palfi), Szabolcs Lanyi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25870

Among the different types of waste products tested, the bark of different Pinus species have been identified as a promising class of low- cost sorbents for heavy metal binding. In this context, the potential of Romanian pine bark wastes as green and economical sorbent for cadmium (II) ions removal from aqueous solutions has been tested in batch conditions as function of initial pH, contact time, sorbent dose, metal ion concentration and temperature. The equilibrium data at three different temper...
Autori: Anca Miron, Brindusa Robu, Carmen Paduraru, Lavinia Tofan, Roxana Laura Mihailescu Amalinei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25871

The indoor climate of educational institutions (kindergartens, secondary schools and universities) in Estonia is investigated. The main hazards for students’ health are: the high concentration (over 800 ppm) of carbon dioxide in the classrooms that refers to the inappropriate ventilation; the non-ergonomic computer workplaces where the direction of the natural light (without blinds for the windows) is causing glare on the monitors; the low humidity of the air in winter; the low air temperature...
Autori: Ada Traumann, Piia Tint, Viiu Tuulik
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25873

This manuscript pointed out an error on pseudo-second-order rate equation. The mistake in the model was duplicated in number of papers in recent years. This type of error could be avoided if authors have had paid more attentions to details about the model from the original paper. In addition, it may leads to trouble for the reader to locate the original articles. It is very provoking and time-consuming to search for a reference when the information is not correct. This comment offered informatio...
Autori: Yuh-Shan Ho
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25876

2This study shows the dyeing behaviour and impact over the wastewaters quality resulted from dyeing wool fibres, of a new synthesized premetalated dyes, derived from new acid dye, sodium(E)-2 –((1-amino-4-sulphonatonaphthalen-2-yl)diazenyl)-6- methoxybenzo[d]thiazole- 5 or 7 –sulphonate, as a result of interaction with Ni(II) and Zn(II) ions. In order to characterize the complexed dyes they were studied in both phase: solution and solid phase. The dyeing performances assessment and the envir...
Autori: Ion Sandu, Laura Chirila, Maria Marcela Tarlea, Romen Butnaru, Viorica Vasilache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25886

The nitrogen and phosphorus management in agricultural systems leads to an increased input of plant nutrients and sustains the soil fertility. Microbes contribute through different mechanisms to nutrient cycles, transforming it available for plants. Isolation of 18 Azospirillum and 18 Azotobacter bacterial isolates was effectuated from the rizosphere and interior roots of the following plants: Carex fusca All., Carex rostrata Stokes., Eriogonum latifolium Sm., Carex elata All., and from Equisetu...
Autori: Csaba Dezso Andras, Eva Gyorgy, Eva Laslo, Gyongyver Mara, Rozalia Veronika Salamon, Sarolta Szentes, Szabolcs Lanyi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25894

The present study was carried out to highlight the areas where heavy metal content in the soils from Rodna mining perimeter exceeds normal limits and to attempt to reduce the concentration of free heavy metal ions by using natural zeolite from the Dej tuff. In order to emphasize the heavy metal content and their accumulation in soil in Rodna region, 35 soil samples were collected from the upper and deeper layer (about 0-10 and 10-20 cm depth) and analyzed to determine total and free Cu, Pb and Z...
Autori: Ramona Nimirciag
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25900

Four processes have been used to enhance the ozonation of phenol in water: I-pH increasing (O3-pH), II- hydrogen peroxide addition (O3- H2O2), III- UV irradiation (O3- UV), and in the presence of both H2O2 and UV; IV-(O3- UV- H2O2). In each of these processes the rate of phenol degradation has two components: direct and indirect....
Autori: Eszter Arany, Ildiko Bartalis, Ilie Siminiceanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25904

Abstract An activated sludge from SBBR (sequencing biofilm batch reactor) reactor filled with Fe0  as filler had been acclimated to Fe(III)rich environment aiming at secure an enrichment culture of iron-reducing bacteria. The dissimilatory Fe(III) reduction ability and its efficiency on the effect of nitrogen and phosphorous removal by dosing different Fe(III) under anaerobic condition were investigated. The mechanism was also proposed based on the results derived from the experiment a...
Autori: Jie Li, Juanjuan Feng, Siyuan Zhai, Ya’e Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25943

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

AbstractEstrogens and anti-inflammatories can pose adverse effects on human health and wildlife. This paper investigated four estrogens(estrone, E1; 17β-estradiol, E2; estriol, E3; 17α-ethynylestradiol, EE2) and three anti-inflammatories (ibuprofen, ketoprofen andnaproxen) by solid-phase extraction (SPE) and liquid chromatography tandem mass spectrometry (LC-MS/MS) in BaiyangdianLake during the dry (April) and wet seasons (September). These compounds were mostly detected at low levels ...
Autori: Jianghong Shi, Jinling Cao, Ting Bo, Xiaowei Liu, Yingxia Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25955

Geochemical cycling of reduced inorganic sulfur in sediments may affect water quality. This study investigated the reducedinorganic sulfur distribution and environmental behaviour in superficial sediments in different watersheds and coastal zones inBohai Bay, China. Acid volatile sulfur (AVS), chromium (II)-reducible sulfur (CRS) and elemental sulfur (ES) distributed insurface sediment were quantified. Total organic carbon and total nitrogen were presented in higher concentrations in the fluvial...
Autori: Robert Mortimer, Simon Bottrell, Wenjing Shi, Yanqing Sheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25959

“The Exploratory Workshop „Progress inEnvironmental Engineering, Biotechnology andManagement in The Frame of Knowledge-BasedSustainable Economy” took place in the contextwhen worldwide research shows that the currentindustrial system supports a population that useresources and generates waste, consuming the Earth'ssupply, but who’s biocapacity is far outweighed bythe increased demand of products for a developmentsystem that often works on unsustainable bases.Today’s challenge is the integration ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25969

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

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 aim of this study is to carry out a theoretical investigation of the extremely low-frequency (ELF) magnetic fields produced bytypical configurations of overhead power lines of the Romanian power grid. The computation of the magnetic flux density isachieved by the following two approaches: i) using an interactive LabVIEW program developed on fundamental formulas and ii)by numerical modeling with FEMM 4.2, a software package based on the finite-element method. Analytical results are th...
Autori: Alexandru Salceanu, Eduard Lunca, Marcel Istrate
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25995

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

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

AbstractWaste management includes all activities of collection, transport, treatment, recovery and disposal of waste, includingsupervising of such operations. The framework law that regulates waste management activities in Romania is Law no. 27/2007,approving Government Emergency Ordinance no. 61/2006, amending and supplementing Government Emergency Ordinance no.78/2000 on waste regime. This legislation sets the responsibilities for waste management from generation to disposal, thepriorities in ...
Autori: Constantin Mircea Orlescu, Ioana Alina Costescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26020

AbstractLake Taihu is a shallow, wind-driven lake where eutrophication is always a serious problem. The study presented hereininvestigates the effect of wind on the eutophication of the lake, by using a two-dimensional (2D) hydrodynamic model coupledwith a 2D water quality model. The 2D water quality model looks in particular at the water quality situation of Lake Taihu in theyear 2008 and predicts future changes in the algae bloom situation. The Delft3D modelling tool was used to build thehydro...
Autori: Arthur Mynett, Chao Yue, Ioana Popescu, Leo Postma, Quan Pan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26037

AbstractThere are many treatment methods used to remove color from textile wastewater, and Fenton oxidation, a well known AdvancedOxidation Process is one of the most efficient. Apart of Fe(II), other metal ions have been used as catalysts in Fenton’s Reagent,and Cu(II) proved to be a good alternative.In this study the effect of the concentration of dye, catalyst and hydrogen peroxide were studied and optimized for thediscoloration process of Reactive Black 5 using a Fenton-like process, H2O2/Cu...
Autori: Andrei-Petru Bertea, Armand-Florin Bertea, Romen Butnaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26042

AbstractActing on the recommendations of the Commissioner for Education, Culture, Multilingualism and Youth - Androulla Vassiliou,EU politicians agreed, at the European Council in Brussels - 2010, that education and training are vital for development and thesuccess of society and the current knowledge-based economy. Educational partnerships among all stakeholders engaged ineducation are increasingly important, while teachers and all the professionals involved in training young people must suppor...
Autori: Carmen Olguţa Brezuleanu, ,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26052

AbstractQuality of water bodies is influenced by their ability to self-clean and disperse the existing substances in water originating fromnatural or anthropogenic sources. Creating mathematical models, using design software and simulation, in terms of surface waterquality monitoring, are standard design and interpretation of studies necessary for rational management of water resources. Andwe must respect the concept of "sustainable development”. In this paper we highlight this by modeling data ...
Autori: Florentin Nacu, Ion Giurma, Valentin Boboc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26056

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 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

AbstractThe present study reports the efficiency of almond shell as a cheap and available material for the removal of Cu (II) fromcontaminated aqueous solutions. The equilibrium experiments indicated that Cu (II) sorption obeyed the Langmuir isotherm at26, 40 and 55oC. The highest value of the maximum uptake (Qo) from the Langmuir equation was found 6.783 mg g-1 at 40oC.The various thermodynamic parameters such as ΔGo, ΔHo and ΔSo were also calculated. The values of ΔGo varie...
Autori: Soheil Aber
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26080

AbstractThe performance of four low cost Iraqi clays, bentonite (BT), kaolinite (KT), attapalgite (AT) and flint (FT) to remove lead ionsfrom aqueous solutions by adsorption was investigated. Batch experiments were carried out at pre determined equilibration time,adsorbent dosage, solution pH, particle sizes, ionic strength, initial lead ions concentration and temperature. Adsorption of Pb2+ions was strongly affected by pH and best adsorption is achieved at pH 4.5. The systems were investigated ...
Autori: Najwa I. Abdulla
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26086

AbstractEight species of macromycetes which grow in phytocoenosis from “Călimani National Park” (Eastern Carpathians, Romania)have been analysed using Fourier Transform Infrared spectroscopy (FTIR). Among the analysed species, five species are beingconsidered edible (Clitopilus prunulus, Pleurotus eryngii, Macrolepiota rhacodes, Lacaria laccata and Suillus luteus) and threespecies are being considered toxic (Lyophyllum connatum, Paxillus involutus şi Gyromitra infula). The results of f...
Autori: Aurel Pui
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26091

AbstractEast Calcutta Wetland ecosystem is a Ramsar Site in India covering almost 51 km2 and is one of the largest of its type. Thiswetland receives a massive load of almost untreated industrial and domestic effluents every day, throughout the year, that hasbeen effectively utilized in pisciculture for having a better yield (2.85 metric tons of fish per 0.01 km2 of water body per annum).The present investigation was carried out to study the toxicity of the untreated effluents discharged from tan...
Autori: Utpal Singha Roy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26094

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

AbstractThere are a quite large number of studies published in the last decade, dealing with the possible pass of the human society to thehydrogen-based energy. The efforts made by researchers all around the world, in order to bring technical solutions, seemremarkable, but at global level only minor progresses were made toward this major change. Furthermore, most of studiespredicted a fuel crisis, but not a possible economical crisis with significant effects on the developing renewable energytec...
Autori: Ştefan Stanciugelu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26099

Mother Earth Investments AG, is actively working onthe development 2nd generation bioenergy feedstocks.In this book, Mr. Jansen generously shares hisknowledge in the field, in particular, regarding thechallenges and opportunities in development ofbiomass-derived fuels. This essential guide toinvesting in bioenergy commodities details secondgeneration biofuels from a scientific, technical andeconomic perspective, and discusses their globalenvironmental, political and financial impact.The book is ...
Autori: Roland A. Jansen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26100

The book edited by Haibo Xie and NicholasGathergood focuses on one of the most importantscientific issues of the 21 century which is thereplacing fossil fuel with sustainable alternatives suchas biomass. Fossil fuels are conventional rawmaterials for many industrial sectors includingchemical and energy production. Usage of fossil fuelis limited by their availability, price and carbonfootprint. Biomass is a renewable resource globallyavailable, cheaper and carbon sequestering. Step bystep shiftin...
Autori: Adrian Catalin Puitel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26101

Abstract Known as the most important byproducts of water disinfection with chlorigen chemicals, trihalomethanes (THMs) are incriminated in causing severe effects upon human health. The exposure pathways that can lead to potentially significant uptake of THMs include for adults ingestion of tap water and inhalation of THMs in vapor phase resulting from bathing, showering and washing. The purpose of this paper is the exposure assessment to THMs through ingestion, inhalation and derma...
Autori: Anca Elena Gurzău
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26110

Abstract The Black Sea is seriously affected by a large range of pollutants, despite severe laws regarding the protection of sea ecosystems. Heavy metals are among the most important xenobiotics from the environment, presenting also toxicity for humans. The studies upon heavy metals have proven that the sediments have the highest concentrations and they can release metals back to water and this fact represents a risk for the humans and aquatic ecosystem life. The use of aquatic ...
Autori: Oana Jitar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26112

Abstract A set of 500 water samples collected from various sites of Tarnava Mare River, between Medias and Copsa Mica were analyzed, during three years (2010-2012). The physicochemical parameters like: temperature, pH, electrical conductivity (EC), total dissolved solids (TDS), salinity, calcium (Ca2+), magnesium (Mg2+), sodium (Na+), lead (Pb2+), chloride (Cl-), sulfate (SO4 2-), ammonium (NH4 +), nitrite (NO2 -) and nitrate (NO3 -) were determined. The results were co...
Autori: Ioana Piştea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26114

Abstract The main purpose of this paper is to identify, highlight and analyze the recycling possibilities for the activated glass derived from the treatment of the cathode ray tubes (CRT) waste equipment and to demonstrate the recycling viability, economical and environment protection efficiency. A total of 95 pieces of waste electronic equipments (TVs and PC monitors) were processed and a number of five TVs and five PC monitors from the ‘95s were analyzed. Significant quantitie...
Autori: Antoanela Popovici
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26124

Abstract Over the last years an increasing number of retailers have undertaken green marketing-specific actions with the purpose of not only bolstering their reputation but also of improving their awareness, increasing their trust or enhancing the target groups’ appeal for the company. These actions/measures will eventually exert a positive effect on how customers perceive retailers. Once a proper, positive and proactive image has been developed in consumers’ mind, the chance of ga...
Autori: Dan-Cristian Dabija
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26129

Abstract Environmental degradation is today one of the great problems of mankind. Not only the need to exploit, but also the necessity to protect and preserve the natural environment have led to the adoption of specific rules for the prevention and remediation of environmental damages, according to EU standards. Taking into account that any human intervention on the natural and anthropogenic environment can lead to ecological risk diversification, occurrence of accidental pollut...
Autori: Aurica Grec
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26130

Abstract Being constantly surrounded by sound, in most cases we operate ignoring this “environmental noise”, but when the noise intensity increases, it becomes a pollutant, adversely affecting the level of professional performance, leading to fatigue, causing nervousness or decreasing the quantitative and/or qualitative level of performance. The main objective of this paper is to evaluate the noise problem in the Strand district of Sibiu and to highlight the negative effects affect...
Autori: Valentin Petrescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26131

Abstract The paper presents several aspects regarding the optimization of the operation for a mixed cycle gas turbine, Titan 130S type, installed at S.C. CET S.A. Bacau, during the warm season. The optimization entails the partial loads operation and has been done using the multicriterial analysis, taking into consideration the operation restrictions required for this type of gas turbine. The criteria that regard this analysis are: thermal energy requirements, the global efficiency...
Autori: Marius-Ion Stanila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26145

Abstract Volcanic hazard is ignored in natural hazard studies in Romania because no active volcano is known on its territory. However, the 2010 eruption of Eyjafjallajökull volcano in Iceland and its consequences on air traffic safety across Europe and the whole northern hemisphere dramatically demonstrated that volcanic hazard in a certain area, such as a country, is not necessarily related to the presence of active volcanoes in the same territory. Therefore, target-focused approa...
Autori: Alexandru Szakács
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26146

Abstract The reason for carrying out this research is related to the significant risk of heavy metals present in wastewater on the environment and human health. The removal of heavy metal ions from aqueous solutions was performed in a batch system, using peat (from Poiana Stampei, Romania) as adsorbent. The efficiency of the process was predicted with high accuracy (correlation with experimental data more than 0.99) based on a feed-forward neural network with two hidden layers. The...
Autori: Gabriel Dan Suditu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26150

Abstract The biosorption of Pb(II) and Cd(II) ions from aqueous solution on marine green algae biomass (Ulva lactuca sp.) was studied in batch systems, at initial solution pH of 5.0 and biomass dose of 8.0 g/L, considered as optimum experimental conditions. The obtained results from experiments of a single-component biosorption were analyzed using Langmuir, Freundlich and Dubinin- Radushkevich isotherm models. The Langmuir equation describe the biosorption isotherm of Pb(II) and Cd...
Autori: Laura Bulgariu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26152

AbstractTo explore the water quality and biodiversity of surface microlayer (SML) in fresh waters, we investigated the water status ofSML and subsurface water (SSW) of three fresh waters in China during April to August of 2010, by chemical and biologicalmonitoring methods. The results showed that the indexes such as total nitrogen (TN), total phosphorus (TP), chemical oxygendemand (COD) exceeded the national III or IV level of surface water quality, and the contents of indexes of SML were muchhi...
Autori: Jiang Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26158

AbstractIn the conventional water flooding process of Daqing Oilfield in China, the occurrence of abundant sulfate-reducing bacterialpopulations has substantially affected the industrial production. This study was conducted from the perspective of ecologicalsuppression by operating anaerobic ABR reactors and dosing ecological inhibitors in a continuous-flow experiment. The practicaloperating efficacy was investigated and associated dynamic bacterial population succession was analyzed. Results sh...
Autori: Bin-song Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26165

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

AbstractToday's society experiences a growing interest in social problems. This leads to the need for companies to assess their impact onthe environment, in its social, environmental and economic dimensions. As a result, organizations are incorporating socialpractices that are used as variables of marketing to attract and retain customers. In this context, the purpose of the present study is twofold; namely to analyze the organizational culture change of the hotels directors because of the requi...
Autori: Isabel María Rosa Díaz
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26190

AbstractSimultaneous uptake of Cd(II) and Pb(II) by corn in two artificially contaminated soils (sandy and sandy loam) amended withtwo doses of natural (NM) and modified (MM) montmorillonite were investigated in a pot experiment under greenhouseconditions. Results showed that the addition of NM and MM to sandy loam soils didn’t have significant effect on the uptake ofCd(II) by roots, then is translocated to the aerial tissues. On the contrary, uptake of Cd(II) by shoots was increased in potscont...
Autori: Hadis Hosseini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26205

AbstractPotential of unmodified Wheat Straw as an adsorbent for the removal of lead and copper was studied. Effect of pH, adsorbentdose, contact time and initial metal concentration on the removal of the metal ions were also investigated. Maximum removal oflead was found to be 43.55% by wheat straw under optimum conditions (pH=5, adsorbent dose=16g/L, contact time= 240minutes, metal concentration=100 mg/L). Unmodified Wheat straw removed 0.381 mg/g of lead. While 56.36% copper removalwas achieve...
Autori: Mehwish Anis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26209

AbstractIn this study, as part of developing a green recycling process of spent lead-acid battery that can avoid both smelting and electrowinning, leaching agent citric acid and other additives (such as sodium citrate and hydrogen peroxide) in aqueous media were reacted with spent lead-acid battery paste. PbO, PbO2 and PbSO4, which are the three main components in a spent lead-acid battery paste, were leached to form lead citrate precursor which was crystallized and then separated from the solut...
Autori: Xinfeng Zhu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26215

AbstractThe recrudescence and diversification of natural and anthropic hazards over the past decades are mainly attributed to an increasein the vulnerability of human communities. Understanding this vulnerability, as central predictive variable within the riskequation, proves to be a highly useful tool in land planning, namely in the development of various strategies. The current paperaims at proposing and integrating certain indicators into the methodology used in the evaluation of exposure to ...
Autori: Adrian Grozavu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26218

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

AbstractIn this work the adsorption of Cu2+ and Zn2+ from industrial wastewater by peanut shells without any pretreatment wasinvestigated through optimization techniques such as a feed-forward back-propagation artificial neural network and a simplexalgorithm. The Levenberg-Marquardt algorithm was the best back-propagation algorithm, with a minimum mean squared error of0.000217 for Cu(II) and of 0.000229 for Zn2+. Mean square error on the validation set is used as an estimate for variance.Accordi...
Autori: Başak Mesci
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26227

AbstractPresent study deals with a technology that reduces the cadmium(Cd) availability to the leafy vegetable Amaranthus caudatusfrom Cd contaminated soil (6 μg Cd g-1soil), amended with farmyard manure FYM, FYM+NPK and agricultural wastes (ricehusk; RH and saw dust; SD) at different doses (0.5 %, 2 %, 5 % and 10 %). Among all the doses 5 % was found to the best foreach amendment showing maximum reduction in phytoavailability of Cd hence better vegetable yield. At this dose the reductionin...
Autori: Anita Singh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26228

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

AbstractCd (II) removal efficiency of free and immobilized fungal consortia of 48-h-old Mucor sp. HI33 + 72-h-old Gliocladium virideAI003 + 72-h-old Aspergillus niger AH09 from aqueous solutions were tested under different aeration systems. Cd (II) removalby free cells under air bubble system aeration was higher (99.91%) than under shaker system aeration. Cd (II) removal byimmobilized fungal consortia was higher (83.18 %) under shaker system aeration and lower in air bubble system aerationrespec...
Autori: Arifa Tahir
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26232

AbstractWorld will face a major fresh water crisis in the coming decades due to high contaminants in surface and subsurface water.Groundwater is ultimate and most suitable fresh water resource for human consumption in both urban as well as rural areas. Thegroundwater quality reflects the information about the natural and anthropogenic source of pollution. This study aims todetermine the water quality status of the area and to deduce its relation to seasonal variations in land use/land cover (LUL...
Autori: Prashant K. Srivastava
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26233

AbstractWashing black aluminum (Al) slag to obtain soluble salts is an important stage of the smelting slag treatment at technologicalprocess. This process is used to recover Al as a coagulant for water purification. This research aims at establishing the optimalconditions for washing (e.g. temperature (T), solid: liquid ratio (S : L), time, the recirculation waters in the system). The goal ofresearch was to determine: a) the removal with maximum efficiency of the soluble salts from black Al sla...
Autori: Romanita Teodorescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26243

AbstractThe abundant availability of solid agroindustrial waste, sugarcane bagasse from sugar mills and juice extraction units, can bepotentially beneficial for the production of fermentation based biochemicals, paper boards and power. However, its role incausing bagassosis, an acute respiratory disease among the personnel handling large dry deposits has also been detected. Disposal of liquid waste whey from dairy industries poses a formidable threat to the aquatic ecosystem due to high BOD and ...
Autori: Manoj K. Ghosh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26248

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 Lake Bafa is an alluvial bar lake located in the Aegean Region in the Big Meander river basin in Aydın and Muğlaprovinces. However, the lake is currently threatened by severe pollution, being under the risk of serious degradation because of(i) uncontrolled urbanization; (ii) point and non-point source pollution; (iii) algae bloom; (iv) sediment transportation andpollution via influent creeks to the lake; and (v) severe degradation of the natural wetlands within its drainage...
Autori: Ebru Yilmaz
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26267

AbstractOil spills inflict serious pollution on the environment. Numerous environmental rules and regulations have been made to improve oil spill response and cleanup performance. However, current oil spill control technologies have failed to ensure environmental safety and ecosystem integrity. Cleanup efforts often lead to more environmental hazards in one way or the other causing public outcry for alternate energy sources. Since hydrocarbon driven energy demand is expected to rise in the fores...
Autori: Abdul Aziz Al-Majed, Abdulrauf Rasheed Adebayo, Mohammed Enamul Hossain
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26278

AbstractThe significant increase in air transportation expected over the coming decades, combined with the initiation of the emissions trading system (EU-ETS) within European aviation, is increasing the requirement for airlines to find new levels of efficiency in their operating practices leading to reduced emission levels. Technological developments are expected to lead to substantial reductions in fuel burn and emissions over the long term, including aircraft design optimization and the use of...
Autori: Athanasios J. Kolios, Stuart Howe
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26282

AbstractThe objectives of this study were to investigate of cadmium and chromium adsorption from aqueous solutions by using orange (Citrus sinensis var Tampson) and sour orange (Citrus aurantium) mesocarp. The chemometric approach was applied for the optimization of removal percent of Cd2+ and Cr6+. To optimize Cd2+ and Cr6+ removal percent, the effect of four experimental parameters on removal percent was investigated by means of multivariate analysis. The considered factors were Cd2+ and Cr6+ ...
Autori: Maryam Bagheri Ardebilian, Mohammad Ali Zazouli, Pouneh Ebrahimi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26287

AbstractThis paper presents the results of the removal of arsenite and arsenate ions from an aqueous solution using Fenton modified solid waste vegetable oil industry (SWVOI). Several factors (such as pH, contact time and Fe2+/H2O2 ratio, initial arsenic ion concentration and adsorbent concentration) that affect the arsenic ion adsorption on the SWVOI adsorbent material were investigated. The sorption characteristics of the adsorbent material before modification were also studied and compared wi...
Autori: Hoda Amiri, Mehdi Ahmadi, Nemat Jaafarzadeh, Susana Silva Martínez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26290

AbstractSecondary aluminium production inherently generates significant amounts of slag of variate composition and including dangerous compounds. Consequently, a care treatment of the resulted slag is imperatively necessary for preventing the environment pollution and for recovering valuable materials even if present in low amounts. The aluminium recovering procedure is based on a chemical and hydrometallurgical slag treatment, leading to the technical grade aluminium sulphate (AS), possible to ...
Autori: Carmen Tociu, Cristina Maria, Elena Diacu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26295

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 biosorption characteristics of Cd(II) ions using the NaCl-treated Ceratophyllum demersum were studied. The effect ofaltering the conditions, such as solution pH, the biosorbent dosage and contact time for the biosorption of Cd(II), and thebiosorption/desorption studies, were investigated. Langmuir, Freundlich, Dubinin-Radushkevich and Redlich–Peterson modelswere applied to describe the biosorption isotherms. Langmuir model fitted the equilibrium data better than the other isotherms(R...
Autori: Ali Akbar Babaei, Mehdi Ahmadi, Nadali Alavi, Nemat Jaafarzadeh, Pari Teymouri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26331

AbstractStudies about the adsorption behavior of Cu(II) on D151 resin were conducted. Parameters including the effects of pH,temperature, contact time and initial metal ion concentration were studied by batch methods. Results showed that the adsorptionwas strongly dependent on pH of the medium, and the maximum uptake was obtained at pH 6.90. In the batch system, the D151resin exhibited the highest Cu(II) uptake as 277.8 mg/g at 318K, calculated by the Langmuir model. The adsorption kinetics were...
Autori: Caiping Yao, Chunhua Xiong, Xinyi Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26333

AbstractIn this work, the effect of the addition of some nutrients on fungal growth and removal of Cr(III) were investigated. Theconsidered fungi, isolated from real tanning factory environment were Phanerochaete chrysosporium, Aspergillus niger and A.oryzae. Firstly, the optimal conditions for fungal growth were determined as a function of pH, contact time, temperature andagitation speed. Secondly, the effect of the addition of some nutrients on fungal growth was examined. Without the addition ...
Autori: Abdeltif Amrane, Mansur Zarrabi, Mohammad Noori Sepehr
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26337

AbstractLead (II) can bind with papain at its active site, destroying the enzymatic activity. Papain a sulfhydryl protease has beenimmobilized in calcium alginate bead for the purpose of removal of lead (II) from industrial waste water. Effect of lead (II) onthe enzyme activity of immobilized papain, has been observed. A detailed kinetic study has been carried out and the data arefitted to different kinetic models. EDS (Energy Dispersive X-Ray Spectrometry) and desorption study suggest that meta...
Autori: Aparupa Bhattacharyya, Parameswar De, Soumasree Chatterjee, Srabanti Basu, Susmita Dutta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26338

AbstractGuazuma ulmifolia seeds activated carbon was modified by sulphuric acid to enhance the adsorption capacity for Cu(II) ions.This modified activated carbon produced from Guazuma ulmifolia seeds (GUAC) was investigated by observing the changes inits characteristics and the Cu(II) adsorption behavior. The prepared GUAC was characterized by BET, FTIR and SEM analysis.The kinetic data were analyzed using four adsorption kinetic models: the pseudo-first and pseudo-second order equations,intrapa...
Autori: Muthukumar Priyadharshini, Palanichamy Baskaralingam, Palanichamy RajKumar, Ponnusamy Senthil Kumar, Selvaraj Dinesh Kirupha, Subramanian Sivanesan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26344

AbstractA cloud point extraction (CPE) procedure for the simultaneous preconcentration of trace amounts of Cd(II), Pb(II), Cu(II), Co(II)and Ni(II) ions as a prior step to their determination by flame atomic absorption spectrometry (FAAS) has been developed. Thisdeveloped method is based on the formation of hydrophobic complexes of these metals with the chelating agent 1-(2-thiazolylazo)-2-naphthol (TAN), which then are entrapped “in situ” into micellar media of non ionic surfactantoctylphenoxyp...
Autori: Wanli Huang, Zhixia Zheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26357

AbstractAccording to the study results, the level of soil pollution with heavy metals in the northern part of Kryvyy Rih iron ore basin(Kryvyy Rih district, Ukraine) reach to “moderately threating”. In the southern part of Kryvyy Rih basin (Shyroke district,Ukraine) the level of soil pollution was between two assessments: “moderately threating” and “permissible”. The results of thestudy on buffer capacity of usual black soils show that the tested elements can be arranged in the following descend...
Autori: Mykola Kharytonov
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26389

AbstractMaintenance activities are among activities at work that can affect the safety and health of workers, both operators and thoseinvolved in maintenance operations of work equipment in use. Lack of maintenance can lead to a temporary or total stop of theproduction process, which means loss of production, as well as a high risk for the workers involved. Employers who do notmaintain or use, at a high safety level, the work equipment may produce major accidents at work.Taking into account the ...
Autori: Anca Elena Antonov
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26394

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 naturally or industrially occurring flammable mixtures containing combustible gases or/and dusts represent a potential risk ofexplosion with major consequences on the environment and human personnel. Methane and coal dust are among the best knowncomponents able of leading to the formation of such mixtures either in coal mining activities or in different industries using coaldust as fuel. In order to assess the risk of explosion and the explosion evolution in such composite mixtures, ...
Autori: Maria Prodan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26402

AbstractIn industrial plants many types of combustible dusts are generated, processed, handled and stored. When ignited, they can burnrapidly and with a considerable explosion force, when mixed with air in proper proportions. This is the reason why adequateprecautions have to be adopted, to ensure all equipment is appropriately protected so that the ignition likelihood of the explosiveatmosphere is diminished.Explosion preventing and protection precautions aim to stop explosion occurrence, by el...
Autori: Adrian Jurca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26406

AbstractThe problem the paper deals with is the determination of ground heat distribution on different distances inside a cylindrical minework. Both interior radius and the exterior radii of the cylinder are known. The use of the range of temperatures is useful for thecalculation of the heat exchange rock - air. Results dissemination allow the development of a mathematical, model which may be applied to a seriesof natural conditions as well as to different geometrical shapes closer or not to the...
Autori: Dan Codruț Petrilean
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26417

AbstractOpen-cycle desiccant air conditioning represents an attractive alternative to the classical method based on electric vaporcompression. The performance of the rotary dehumidifier has a significant effect on the capability, size and cost of the whole airconditioning system. In the present paper a detailed two-dimensional mathematical model of coupled heat and mass transferprocesses manifesting at the moist air-solid desiccant interface has been formulated. It was studied packed bed absorbe...
Autori: Carmen Ema Panaite
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26434

AbstractThe main objective of the current research is to determine the content of heavy metals from the Bistrita river banks, respectivelyupstream of Bacau city, Romania, in Bogdan Voda area, and downstream of Bacau city. Because of their bio-accumulationtendency heavy metals can generate a negative impact on soil, as well as on certain physiological and biochemical indicators ofplants and animals metabolism. The selection of sampling points (upstream and downstream of Bacau city) took intoconsi...
Autori: Cristian Radu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26436

AbstractThe aim of the current study is to analyse the effects of reusing the abrasive material, in different rates, on the quality of surfacesprocessed by abrasive water jet cutting (AWJ) and to correlate it with the environmental impact. In view of this, two aluminiumalloys are processed, Al 2024 T3 and Al 6065 T651, respectively, with large applicability in the aeronautic and machine buildingindustries. It was found that for reusing rates of the abrasive material higher than 60%, a better qua...
Autori: Carol Schnakovszky
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26438

AbstractAmong foods that possess potent medicinal properties, Cucurbitaceae seeds stand as a promising source, since they are assumedto have a protective effect against oxidative stress. In order to analyze the antioxidant compounds of the seeds of Citrulluslanatus, Lagenaria siceraria, Telfaria occidentalis, Cucurbita maxima, Cucumis sativus, Cucumeropsis mannii, and Cucurbitamoschata, the dried seeds were extracted in MeOH-H2O (50 %; v/v) mixture at constant mixing rate. Qualitative phytochemi...
Autori: Aristide Guillaume Silapeux Kamda
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26440

AbstractIn order to diminish the climat changes due to greenhouse gases, the capture from the source, transport and storage of carbondioxide is one of the environmental priorities of the EU until 2050. Transportation of this gas through pipelines (one of thesolutions with most advantages in transport) can be done at ambient temperature only at high pressures, so the carbon dioxide toremain in the supercritical state. In case of underground pipelines, there is a risk of cracking at the wall of th...
Autori: Valentin Zichil
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26447

AbstractIn the present work, the kinetics of amaranth dye biosorption onto the roots, stems, leaves and the whole plant of water hyacinth(Eichhornia crassipes) were studied for differential evaluation of the plant’s biosorptive potential to remove the toxic dye fromaqueous solutions. E. crassipes´ leaves showed the highest level of amaranth dye biosorption (43.1 mg/g), followed by the entireplant (31.18 mg/g), the roots (28.51 mg/g), and finally by the stems (23.97 mg/g). The same differential t...
Autori: Imelda Guerrero-Coronilla
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26463

AbstractThe main purpose of the present work was to evaluate the potential of plum (P. domestica L.) tree bark (PDB) to remove Cr(VI)and total chromium from aqueous solutions in batch systems. Experimental data showed that the Cr(VI) and total chromiumremoval capacity was dependent on operating variables such as PDB particle size, PDB pretreatment, solution pH, initial Cr(VI)concentration, and contact time. The mechanism of Cr(VI) removal by PDB implies two simultaneous processes: 1) the reducti...
Autori: Perla Vianey Lopez-Nuńez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26464

AbstractThe failure of process equipment due to the impact of natural hazards, the so-called Natech events, have generated severalindustrial accidents, such as Fukushima, Japan - 2011, Ichihara, Japan - 2011, Tupras, Turkey - 1999, Northridge, US - 1994 etc.,causing the release of large quantities of hazardous materials in the environment. Earthquakes occupy a leading position in thelist of natural hazards with Natech potential, causing serious damage and the loss of containment in process equip...
Autori: Augusta Diana Gheorghiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26460

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

AbstractThe paper analyses the hydrologic parameters of the Tarata perimeter with alluvial soils, in order to estimate the values of theTazlau River behaviour, in case of flooding. Tazlau River flow rate has an annual average value of 4.9 mł/s, with a torrentialcharacter when the level of precipitation is increasing. The analysis of this perimeter is of interest today as a result of the existingexcessive erosion. We identified a possible solution to reduce soil erosion through the exploitation o...
Autori: Stelian Cartacuzencu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26469

AbstractThe electrochemical properties of two fluorinated substrates, namely 1H-3-methyl-4-ethoxycarbonyl-5-(4-fluorobenzylidenehydrazino)-pyrazole (Ia) and 1H-3-methyl-4-ethoxycarbonyl-5-(2-fluoro-benzylidenehydrazino)-pyrazole (Ib)respectively have been investigated in the room temperature ionic liquid (RTIL) 1-butyl-3-methylimidazolium tetrafluoroborateon a platinum electrode. The voltammetric investigation of the above compounds in the mentioned RTIL shows mainly twoirreversible anodic peaks...
Autori: Liviu-Virgil Costea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26471

AbstractThe performance of some complex coagulants derived from weak and medium anionic polymers and medium cationic surfactantin coagulation-flocculation process for water treatment was experimentally investigated by carrying out kinetic studies and bydetermining the optimum coagulant dose. The complex coagulants were prepared from weak anionic and medium anioniccopolymers of acrylamide and sodium acrylate with the commercial names Praestol 2515 and Praestol 2540, and mediumcationic surfactant ...
Autori: Constantin Bobirică
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26478

AbstractFault-Trees (FT) and Event-Trees (ET) are well recognized techniques worldwide, which have been used by reliability experts infailure analysis of complex technical systems. In risk assessment (RA) of Occupational Health-Safety Systems (OHSS), thesituation is absolutely different, since their application is not quite expanded and has not been extensively incorporated in themain risk assessment methodologies of OHSSs, despite their significance. In this article, we review and classify FT/E...
Autori: Panagiotis Marhavilas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26483

AbstractIn this study, the reduction of phenolic compounds and other organic pollutants from greenish black (GB) and dark brown (DB)olive mill wastewater (OMW) was investigated. Ultrasonic irradiation in combination with aerobic biodegradation was adoptedas the treatment technique. Operational parameters such as the duration of ultrasonic irradiation, ultrasonic power intensity andultrasonic frequency were tested to determine their effects on phenol, BOD, and COD degradations. It was found that ...
Autori: Zakaria Al-Qodah
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26484

AbstractThe paper concentrates on the risks of modern technologies (in wood processing and metal industry, spray-painting processes andcar washing technologies) in the industrial and office environments on human health. The problems discussed are the following:fine dust (PM2.5and PM1.0) penetrating deeply into the lungs; high concentration of carbon dioxide in the air of cities and officeareas that are situated close to the transport junctions. The health damages can be described as follows: all...
Autori: Ada Traumann
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26501

AbstractGreenhouse gases emissions represent a first-degree concern in power generation from fossil fuels combustion. Over the past twoand a half centuries, since the dawn of the industrial era, huge amounts of carbon dioxide have been released into the atmospherefrom combustion processes, most of it coming from fossil fuel-fired power plants. The effects of CO2 accumulation in theatmospheric environment become more and more apparent due to the increasingly strong greenhouse effect leading to gl...
Autori: Bogdan Horbaniuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26505

AbstractNano-Ag electrodeposited on carbon nanotubes-epoxy and carbon nanofibers-epoxy composites electrode materials as Ag-CNTand Ag-CNF electrodes were tested for simultaneous detection of arsenic (III) and lead (II) from aqueous solution. Theelectrochemical behaviour of As(III) and Pb(II) on both composite electrode offered useful detection information and Ag-CNFexhibited better electroanalytical performance. The detection scheme using Ag-CNF for simultaneous detection of As(III) andPb(II) wa...
Autori: Anamaria Baciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26511

AbstractThe mining waste facilities in the Baia Mare region, Romania, resulted from the extraction of poly-metallic ores (including Au,Ag). Metal sulphide minerals from the mining waste facilities have a potential to produce acid rock drainage (ARD) and togenerate risk for the environment, including for the water resources. Some of the mining waste deposits from the region arelocated near the town of Baia Mare, close to the residential areas, the agricultural lands and the surface water. The sho...
Autori: Oana-Cristina Modoi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26512

AbstractThe alkylation of light hydrocarbons leads to produce the high octane number gasoline blending components. The homogeneouscatalytic alkylation reaction is usually carried out at low temperature in the presence of H2SO4 and HF. The use of heterogeneouscatalysis for this reaction is a promising solution for the replacement of hazardous acids to environmentally friendly zeolitecatalyst. The alkylation reaction of isobutane with 1-butene was studied on selected zeolite catalysts. The objecti...
Autori: Tatjána Juzsakova
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26514

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

AbstractFault-Trees (FT) and Event-Trees (ET) are useful analytic tools for the assessment of reliability and safety of complex technicalsystems, and occupational health-safety systems (OHSS), as well. In this work we broaden and expand our previous studyregarding the features of FT/ET methods. To clarify this further, in the present article we statistically analyzed the results of aliterature survey, concentrated on FT/ET techniques applied in risk assessment (RA) of OHSSs, in order to (i) depi...
Autori: Panagiotis Marhavilas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26518

AbstractThis paper presents the effects of regularization and embankment of the Olt River and drainage of its floodplain on thegroundwater table from meadows and on the erosion base levels of tributaries within Ciuc Depression. The hydraulic worksreduced the wetlands and had important impact on the aquatic flora and fauna of the river and its floodplain. Measurements andobservations (before 1985 and after implementation of hydraulic works in 2008) undertaken upon the river, upon the drainagesyst...
Autori: Iosif Bartha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26519

AbstractAtomic absorption spectrophotometry (AAS) technique was applied in order to identify the occurrence of certain heavy metals insamples of pork products, such as bacon, ham, sausage and salami, taken from four commercial centers in Romania. Lead levelsin samples varied from 0.58 to 0.96 mg/kg, Cadmium values from 0.11 to 0.21 mg/ kg, Copper from 0.73 to 1.32 mg/kg, whileZinc levels were detected between 32.19 and 42.12 mg/kg. Lead, Copper and Zinc found in samples were lower than themaximu...
Autori: Gabriel Vasile Hoha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26522

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

AbstractThere are several environmental issues in urban areas that are caused by the unintentional consequences of past activities. One ofthese issues is the wide application of asbestos cement in roofing materials in the 2nd half of the 1900s. In this study, our goal wasto identify different roof types and to determine those with asbestos components using high-ground (1 m) and spectral (126bands) resolution airborne hyperspectral imagery (AISA Eagle II) and several classification approaches. In...
Autori: Szilárd Szabó
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26549

AbstractThe adsorption potential of 10 wt.% COOH/TUD-1 material for removing Cd2+ from aqueous solutions was investigated via thebatch technique, and the effects of pH, temperature and contact time were studied. Experimental data showed that the maximumCd2+ adsorption, 90%, occurred at pH 6. The adsorption equilibrium was reached within 35 min for 10 wt.% COOH/TUD-1. Theadsorption mechanism was investigated in terms of its thermodynamics and kinetics. The adsorption data were fitted using theLan...
Autori: Nabila Bensacia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26558

AbstractThis paper presents the experimental results obtained during testing in an electromagnetic field with non-ionizing radiations fromlow-intensity microwaves acting on a group of substances consisting of: double distilled water, neutralized to pH = 7; drinkingwater with pH = 7.3; slightly acidic aqueous solutions obtained by diluting the acetic acid at concentrations of 2.25‰, 4.5‰ and9‰ in double distilled water, for pH = 6.8, 6.7 and 6.5, respectively. The exposure of the samples was perf...
Autori: Gheorghe Morariu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26562

AbstractPresent study was envisaged to study chelators-metal interaction in phytoaccumulation of metals as a bioremediation technologyto decontaminate metal pollution and adsorption of metals on soil. Lactuca sativa was used as model plant for phytoaccumulationto identify uptake of Cadmium (Cd) and Lead (Pb) and their subsequent accumulation in edible tissue of plant. Cadmium andlead were two selected metals for phytoaccumulation and copper was also studied for adsorption experiment. Green house...
Autori: Audil Rashid
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26568

AbstractWe reported the results of an isotopic study aimed at evaluating the medium to long-term effects of different water qualities anddeficit irrigation strategies on the ecophysiology of grapefruit in a 7-year-old plantation in SE Spain. For a better understandingof the interaction between nitrogen and salts from reclaimed water, RW, an experiment using natural abundance (δ) of 15N wasconducted. This study showed that in grapefruit crop irrigated with RW leaf δ15N value increased. ...
Autori: Cristina Romero-Trigueros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26573

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

Abstract Heavy metals, such as Cr (chromium), have received attention during recent years due to their disposal in soil and water. Brave peanut (Pterogyne nitens Tul.), a tropical tree, was cultivated in 500 mol L-1 Cr+6 to observe how this species responds to this stress, with a view to its possible application in the restoration of degraded areas. In the present study, we report the use of a new method, photoacoustic spectroscopy, to evaluate the emission of CO2 and ethylene and th...
Autori: Luisa Brito Paiva
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26602

Abstract In the present study, the results of PM10 pollution levels assessment in the most populated town from Romania, namely Bucharest, the capital of the country are presented for a 10 years period, 2004 – 2013, respectively, with the aim of emphasizing the progress recorded after the implementation of Directive 2004/107/EC and Directive 2008/50/EC provisions. Data were collected from 8 monitoring stations located in different areas of Bucharest. PM10, Cd, Pb and Ni from PM10 averag...
Autori: Marian Proorocu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26606

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

OPTIMIZATION OF REDUCTION OF COPPER USING Stenotrophomonas maltophilia PD2 BIOMASS AND ARTIFICIAL NEURAL NETWORK MODELING ...
Autori: Arpita Ghosh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26616

Abstract Samples were collected for six months (nine storm events) to observe the contaminant loads from three highway segments at Rawalpindi, Pakistan. The contaminants analyzed include total suspended solids (TSS), total dissolved solids (TDS), total nitrogen (TN), chemical oxygen demand (COD), total organic carbon (TOC), total phosphorous (TP), sulphate (SO4), chloride (Cl-), iron (Fe), copper (Cu), zinc (Zn), lead (Pb), and chromium (Cr). Mass vs. volume [M (V)] curves were drawn to inve...
Autori: Hamid Iqbal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26617

Abstract The feasibility of catholyte-conditioning to enhance the electrokinetic (EK) remediation of cobalt and lead polluted soil has been investigated in this study. Electrokinetic experiments were conducted using an EK cell 10 cm in width, 10 cm in height, and 50 cm in length. Plate type electrode of graphite was used as electrode material. Two experiments were conducted under constant voltage condition (2 V/cm). The pH values of the soil significantly affect the removal of Co and Pb ions...
Autori: Mahdi Bahemmat
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26623

Abstract In order to reduce public annoyance produced by the noise generated from a District Heating Plant (DHP) upon an urban residential area, a noise assessment was performed. The paper illustrates the evaluation of noise envelope around the DHP, considered as an overall source made of six distinct sound sources. As receptors, there were considered five points on the facades of the closest residential blocks. The specific feature of the research work was the configuration of the area havi...
Autori: Mihail-Tudor Marcu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26632

Abstract During the creation of a product, the majority of the enterprises still apply a linear approach. This approach has been imposed by the organization way of the company and by the informational flow between the different departments. In the present time different models of integrated engineering oppose to the sequential organization. These models permit the simultaneity of the activities deploying or at least their partial overlap. The activities overlap can be imagined eliminating fi...
Autori: Petrică Corăbieru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26633

Abstract The utilization of manure for waste-to-bioenergy conversion processes may be a sustainable development choice rather than its traditional use as a fertilizer. Furthermore, the valorization of manure via thermochemical conversion routes and their integration with biological processes can provide an additional pathway in the utilization of residual biomass. On the other hand, the use of metal oxides might enhance the performance of thermochemical processes such as pyrolysis by either ...
Autori: Maria Fernandez-Lopez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26647

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 A new catalytic mixture of nanosized dioxide (CeO2) and zinc oxide (ZnO) powders have been synthesized by surfactant-assisted solvo-thermal route, characterized and evaluated for photocatalytic activity. The prepared catalysts were characterized by TG, XRD, SEM and EDAX methods. SEM analysis showed that the catalyst particles have spheroidal shape and their sizes range from 50 to 80 nm, organised as uniform distributed aggregates with large surface area, leading to the existence of ...
Autori: Gabriela Antoaneta Apostolescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26655

Abstract The oxygen transfer into the fermentation broths could be improved in presence of oxygen-vectors, without intensification of mixing or aeration. The experimental results for simulated, P. shermanii and S. cerevisiae broths indicated the significant increase of kLa, by adding n-dodecane, but the magnitude of this effect depends especially on the cells affinity for hydrocarbon droplets. Therefore, due to the higher affinity of yeasts cells for hydrocarbon droplets during their entire ...
Autori: Anca Irina Galaction
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26657

Abstract The capacity of ion exchange resins, MN 500 and C100 H, for the removal of copper ions from aqueous solution has been investigated under different conditions, namely: initial solution pH, initial metal-ion concentration and contact time. The adsorption of Cu(II) on these resins follows the first-order reversible kinetic. The film diffusion of Cu (II) in these ion exchange resins was shown to be the main rate limiting step. The studies showed that these cation exchange resins can be ...
Autori: Cristina Modrogan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26658

Abstract Environmental contamination by antimony has been described as a critical issue in many articles. In this study, the Sb(III) removal by two brown algae, Sargassum muticum and Aschophylum nodosum, has been tested. Algae were collected in Viana do Castelo beach (Portugal). Preliminary tests were carried out and, based on the results, Sargassum muticum was chosen for subsequent experiments. Kinetic data were described by pseudo second order model. After about four hours contact time the...
Autori: Gabriela Ungureanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26659

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 development of biodiesel industry in the recent past brought into discussion the valorization of glycerol as the byproduct of this technology. Dehydration of glycerol leads to acrolein, mainly used as a raw material in the production of acrylic acid and its esters. Several research efforts dealing with the synthesis of acrolein from glycerol are reported in the literature. However, they are limited to catalyst testing on laboratory scale, no attention being paid to the process f...
Autori: Ionut Banu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26666

Abstract The transformation of lentic ecosystems in other types of ecosystems (plain, forest) is a part of normal process of ecological succession that occurs slowly, at geological scale. The filling of cuvette with eroded material transported by precipitations, air masses or detritus produced in situ, start from the moment when the body of water lakes is formed and has different rates depending on many factors: geographical location, geological substrate type, types of existing uses in the ...
Autori: Ofelia Axinte
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26672

Abstract Supercritical fluid and ultrasound assisted extractions were applied as a first step in a complex processing of spruce bark in order to recover polyphenols compounds. The aim of the study was to compare the efficiency of these "green" processes with a conventional extraction technique (ethanolic extraction). Supercritical fluid extraction was carried out in two steps: (i) static extraction for 15 min at 1000 psi with pure CO2 and (ii) dynamic extraction for 45 min at 35, 4...
Autori: Adina Iulia Talmaciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26680

Abstract In the process of chitin extraction, shrimp shell powder was treated by Lactobacillus plantarum culture. The efficiency of microbial demineralization (DM) under aerobic and anaerobic conditions was investigated. The shrimp shell powder was incubated at 30 °C for 6 days with L. plantarum. In order to prepare microbial culture, inoculums size was 5% for culture inoculation. Date syrup with total reduce sugar concentration of 30 g.L-1 was used. The value of pH in anaerobic conditio...
Autori: Marjan Khorrami
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26692

Abstract The effect of goethite addition, hydrogen peroxide concentration, initial pH, hydroxyl radical scavenger and initial dye concentration on the decolorization of Orange II by Fenton-like process was investigated. The results showed that the decolorization rate increased with goethite addition and hydrogen peroxide concentration, but decreased with the increase of initial dye concentration. There existed an optimal initial pH to achieve the highest decolorization rate. The presence of ...
Autori: Hui Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26693

Abstract The Southeastern Black Sea coastal region in Turkey and Georgia is under threat of severe coastal erosion and shoreline recession. The main reason for this problem is the response of the coast to human activities. While water discharge rates were reduced by dams by approximately 7% only, about 98% of the suspended sediment is being captured by the dams, leading to reservoir siltation over time in the southern Black Sea Region Rivers in Turkey. About 83% of the total suspended sedime...
Autori: Mehmet Berkun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26698

Abstract In this study, the efficiency of Fenton’s process to remove nickel (II) from industrial plating effluent was investigated. The effect of pH, contact time, concentrations of Fe2+ and H2O2 were surveyed. Kinetic experiments were performed in order to predict the nickel (II) removal rate from wastewater. At pH 1 to 4, nickel (II) removal efficiency increased and declined at pH > 4. The maximum nickel (II) removal efficiency was 98% at 60 min contact time, pH: 4, and Fe2+ and H...
Autori: Mohammad Malakootian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26704

Abstract The removal efficiency of algal biomass Chlamydomonas reinhardtii for Pb and Cu metal ions was evaluated in single and binary metal systems. Biosorption experiments were performed in solutions containing 0.2 g L-1 of algal biomass at 30oC and pH 6. Initial metal ion concentrations ranged from 10-7 M to 10-6 M. Thermal analysis of the biosorbent indicated that algal cells are composed of groups containing C, H, N, and S. The presence of ionisable functional groups responsible for bio...
Autori: Roula Flouty
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26709

Abstract Autism spectrum disorders (ASD) are a heterogeneous group of neurodevelopmental disorders that affect an individual’s ability to communicate and socialize, often associated with repetitive movements or behaviors. Frequently patients associate intellectual disability or digestive problems. Autism is more common in males and affects 1 in 88 children in USA. The mechanism that leads to ASD is very complex, involving genetic, epigenetic, immune and environmental factors that could...
Autori: Cristina Rusu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26712

Abstract Adsorption has proved to be an excellent way to treat industrial wastewater, due to its significant advantages like easy availability, inexpensive, ease of operation and highly efficient, compared to conventional expensive adsorbents like activated charcoal, alumina etc. The present investigation focused on utilization of Mangifera indica seed shell substrate for the removal of toxic heavy metals like Fe(II) and Mn(II) from wastewater. Mangifera indica seed shell substrate as an eff...
Autori: Tikaram D. Kose
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26713

Abstract Total anthocyanins were extracted from six sweet cherry cultivars grown in Sakarya, Turkey. In vitro inhibition effects of the extracted total anthocyanins on purified carbonic anhydrase I and II were investigated using CO2 as a substrate. All the extracted total anthocyanins inhibited the activity of the human carbonic anhydrase (hCA) I and II enzymes. Among all the cultivars, ‘Karakiraz’ was found to be the most active on both hCA I (IC50 = 30.59 μg/mL) and hCA II a...
Autori: Taki Demir
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26715

Abstract The Organizations of the 21st century had evidenced that Management Systems and Standards have become a key aspect for their sustainable development and a prerequisite for their existence. In this recent decade, the Systems for Quality (ISO 9001:2008), Environment (ISO 14001:2004), Occupational Health and Safety (OHSAS 18001:2007), Corporate Social Responsibility (SA 8000:2008 and ISO 26000:2010) and Risk Management (ISO 31000:2009) form the core pillars of the Organization, supple...
Autori: Gopalakrishnan Muthu Samy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26720

Abstract Chitosan was cross linked with gluteraldehyde and chemically modified by introducing xanthate group onto its backbone using carbon disulfide under alkaline conditions. This crosslinked xanthated chitosan flakes (XC) was used as an adsorbent for the removal of mercury ions from contaminated water streams near the coal mines. XC was found to be far more efficient than the conventionally used adsorbent activated carbon. FTIR studies indicated the interaction both amine and the xanthate...
Autori: Avinash Gupta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26725

Abstract The aim of this study is to evaluate adsorption kinetics, isotherms and thermodynamic parameters of anionic textile dye (Acid Red 88) onto montmorillonitic clay from aqueous solutions. The parameters of pH, initial dye concentrations, temperature, and the adsorbent dosage were investigated experimentally. Four kinetic models including pseudo-second order, pseudo-nth order, Bangham’s equation and double exponential equation (DEE) were selected to follow the adsorption process. ...
Autori: Sedef Dikmen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26731

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 In Hungary, 0.5 million m3 of thermal water is exploited every day for diverse purposes. After utilization, this enormous amount of thermal water becomes sewage water with a high concentration of salts, heavy metals, ammonia, nitrate, an unfavorable ion composition and high temperature. A common treatment is to dispose of waste water into a surface recipient through uninsulated channels surrounded by arable land. By infiltration, sewage water can cause potential salinization/sodific...
Autori: Andrea Farsang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26742

Abstract MFe2O4 nanopowders (M = Ni, Co, Cu) were prepared using the precursor technique, starting from the corresponding metal nitrates and poly(vinyl alcohol)-PVA. During the heating of metal nitrates- PVA solution, a redox reaction takes place around 150°C, leading to the formation of M(II) and Fe(III) carboxylates. These compounds were used as precursors for the ferrites nanopowders. The desired ferrites were obtained by thermal decomposition of the carboxylates; the obtained...
Autori: Marcela Stoia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26745

Abstract Extensive use of plastics leads to the increase of non biodegradable wastes that have to be recycled due to both dramatically decrease of natural resources to producing them and to their increasing need as well as due to environmental issues. Most of goods made by materials based on wastes have to be commonly used by people. Antibacterial character of those is necessary to avoid epidemics. This paper deals with determination of antimicrobial character of materials based on polymeric...
Autori: Florica Silvia Cristina Patachia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26751

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 presents a toolset for the efficient control of the indoor air quality and thermal comfort in retrofitted buildings. The refurbishment of existing buildings, compliant to actual regulations, often leads to airtightness and the consequent poor conditions for the occupants that could cause low productivity and even sickness. For this reason, the CETIEB (Cost Effective Tools for Better Indoor Environment in Retrofitted Energy Efficient Buildings) project developed innovative...
Autori: Gian Marco Revel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26770

Abstract This study is focused on the removal of leachable lead present in CRT (cathode ray tube) glass employing different chelating agents, NTA (nitrilotriacetic acid) and ATMP (amino trimetilen phosphonic acid), and then on the evaluation of their extractive capability. The operating conditions are the following: T=80°C, t=1h, pH=10, solid/liquid weight ratio=1/10, reagent concentration= 0.1 M. Afterwards a number of leaching tests at controlled pH were performed in the 5-9 range for ...
Autori: Elena Bursi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26772

Abstract Solid digestate (SD) represents an environmental problem due to the continuous increase of biogas production. In the present study four white-rot fungal strains were screened for their ability to grow on two different SD samples, obtained from industrial biogas plants, using wheat straw (WS) as a control medium. Results show that i) the feedstock used in the biogas plant influences the time required for the colonization of the corresponding SD and ii) different fungal strains have d...
Autori: Guglielmo Santi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26792

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 Drinking of arsenic contaminated waters has been reported adversely affect our health even at a concentration level as low as 10 g/L, therefore the availability of a reliable and cheap, and an environmentally arsenic detection kit is really indispensable. Although simple field test kits have been developed, most of them use toxic mercuric salt as a color-generating reagent for arsenic detection. Hence this study was conducted to develop a simple, cost effective, and environm...
Autori: Keat Khim Ong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26819

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 application of Information and Communication Technologies (ICT) for water supply systems has steadily increased in the last 20 years. The city of Milan is presented as case study where the main challenge for the coming 20 years is the efficient use of energy. Opposite to other parts of the world, in Milan, water is neither scarce nor there is a growing need for supply. Given that the system completely relies on pumping, optimization algorithms and sensor technologies can be appl...
Autori: Mario E. Castro Gama
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26826

Abstract Water Distribution Networks (WDN) are large-scale systems whose management is a complex task, with increasing environmental and socio-economic implications worldwide, and with a renewed considerable attention by all stakeholders: local authorities, regulators, environmental groups and the scientific community. WDM managers need to reliably estimate the water demand in the short-term (typically 1 day ahead), in order to operate their reservoirs and treatment plants appropriately to ...
Autori: Antonio Candelieri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26830

Abstract Decision support systems (DSS) have been wildly developed in the recent decades, in various areas of decision making. In the 21st century, the advances in Information and Communication Technology (ICT) have brought the era of cloud computing, in which network-distributed resources (simulation and optimization models, data, etc.) are integrated in decision support applications. The aim of the present article is to present the application of web-based decision support systems (WBDSS) ...
Autori: Quan Pan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26832

Abstract A bibliometric analysis along with a brief historical and modifications overview and scientific applications was carried out to reveal the impact of Brunauer-Emmett-Teller (BET) isotherm on scientific research. The data was based on the Science Citation Index Expanded (SCI-EXPANDED) database of the Thomson Reuters Web of Science. BET isotherm received a total of 10,418 citations from its publication to 2012. Among them, 9,117 (88%) were research articles by 20,108 authors with 95% m...
Autori: Moonis Ali Khan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26839

Abstract The current study aims at analyzing the perceptions of people exposed to wind turbine noise. Noise measurements were carried out in a wind farm in the north of Portugal and the data were analyzed and crossed with the answers to a survey applied in four nearby villages. It was concluded that the direct visibility of the wind turbines from the respondents’ houses seems to affect the reported annoyance due to noise exposure. Besides, there is a significant relationship between th...
Autori: Pedro M. Arezes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26845

Abstract An experimental study on the hydrodynamics of fixed, fluidized and spouted granular bed was performed. With this aim two commercial adsorbent materials and a composite material obtained by impregnation with a hygroscopic inorganic salt were employed. The fluid phase consisted in dry air. The obtained results highlight the influence of grain size, material density and roughness over pressure drop and gas velocity. Increasing grain size leads to decreasing pressure drop and increasing...
Autori: Ioan Solomon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26854

Abstract This work presents the optimization of process variables to maximize the percent of Fe (II) removal, R (%), by chelating resin Purolite S930 from 34% CaCl2 solutions. To study the combined effect of the initial solution pH, initial Fe (II) concentration and resin dosage was used a 23 orthogonal central composite design and Response Surface Methodology (RSM) for analysis of experimental data. To optimize the regression equation was used The Gradient method. The study discovered that ...
Autori: Camelia Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26856

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 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 This paper analyses mass and energy balances of some Integrated Municipal Solid Waste Systems (IMSWS) focusing on MSW sorting, treatment and energy recovery conversion chains suitable for the last entries into the European Union (EU). In particular the Romanian case-study has been developed as reference scenario. In this context the actions timelines for the case-study are immediate (S1A), midterm (S1B) and long term (S2). In the scenarios S1A, S1B a poor selective collection (SC) i...
Autori: Gabriela Ionescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26878

Abstract In the European Union, the hazardous waste recycling has become a priority, as response at legal prohibition for landfilling of untreated WEEE. The economic and eco-efficient recycling methods acquire more and more interest from the industry. The Cathode Ray Tubes (CRT) glass derived from Waste of Electric and Electronic Equipment (WEEE) dismantle is known as hazardous waste, because of their heavy metals content, especially lead. For this type of waste, the authors have proposed in...
Autori: Antoanela Popovici
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26890

Abstract The paper presents a study on the hazards associated with solid ammonium nitrate (AN) storage and handling, in particular the hazard of explosion. Due to its flammable and explosive characteristics, AN is largely used as an explosive material in the mining industry. Some specific problems encountered in the risk estimation are related to the determination of the explosive power of the AN, which depends on several characteristics. The simulation results of AN explosion using differen...
Autori: Zoltán Török
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26891

Abstract Poly(vinyl chloride) (PVC) is the most widely used material for the production of medical devices such as intravenous fluid bags and tubing, enteral feeding, dialysis equipment and catheters. Despite of their numerous advantages, the plastic medical devices are non biodegradable and prone to microbial colonization causing biofilm associated infections which are difficult to treat and tend to chronicisation. A possible solution to surpass these limitations could be the fabrication of...
Autori: Petruța Stoica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26894

Abstract In this study, activated carbon was synthesized from durian peel and used for the removal of lead (II) ions from water. The activated carbon was produced with physical activation method using CO2 as the activating agent at 900 oC. Prior to the activation process, durian peel was carbonized under either nitrogen atmospheric or vacuum pyrolysis in order to compare the properties of the synthesized activated carbons. Suitable adsorption kinetics and isotherm models for the lead (II) re...
Autori: Samorn Hirunpraditkoon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26901

Abstract High population density and intense traffic resulted in various forms of pollution in cities. Air pollution ranks at the top of this list. This paper investigates changes in air pollutant parameters in Banja Luka, B&H, using data from air-quality measurement stations. The applied methodology is based on 24-hour measurements of air pollution, and connection between monitoring stations and automatic traffic control system centre. Based on the results of such measuring, a signaling...
Autori: Srecko Stankovic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26902

Abstract The distillery wastewaters lead to multiple environmental concerns due to release in large volume of pollutants in water-bodies. In the present study, microbes tolerant to 10-50%, v/v of distillery spent wash (DSW) and decolorization capacity were explored for decontamination. Total 32 microbes from various eco-habitats and depositary were examined to degrade DSW, initially at 10% and successively to 25 and 50%. Of these, 3 thermotolerant Pichia sp. viz. Y4, Y16 and D1C and an isola...
Autori: Bhagyashri Dandi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26911

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

The biosorption of a basic dye, safranin from aqueous solutions by marine fungus Aspergillus wentii, which was chemicallymodified by esterification of the carboxylic acids (CB), or methylation of amine (NB), or raw biomass (RB) was investigated. The equilibrium was established after 40 min and the experimental kinetic data obtained for various forms of A.wentii were applied to the pseudo-first order, pseudo-second order, Bingham and Weber-Morris kinetic models. The pseudo-second order model ...
Autori: Yasmin Khambhaty
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26930

Eco-efficiency is a key concept which brings together two essential aspects for economic progress and ecological aspect. Ecoefficiency indicators are very relevant and play an important role for environmental cost management. For a thermal power plant, which has a great impact on the environment, these indicators involve lower costs and efficient use of energy, water and fuel. The paper proposes a number of eco-efficiency indicators applicable to a thermal power plant, according with specific...
Autori: Roxana Grigore
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26938

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

Waste recycling in steel industry by turning grain-size and powdery waste into pellets is a must now more than ever for economical motivation, in order to save raw materials and also for ecological reasons, as it leads to a cut down in the quantity of dumped waste. Industrial practice offers processors various technologies of waste recycling (agglomeration, briquetting, pelleting, mechanical mixture). The optimal variant should be chosen according to waste type, its content of useful elements...
Autori: Ana Virgina Socalici
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26968

Ranunculus rionii and Ceratophyllum demersum develop aquatic dense stands, which lately started to represent a major ecological concern for all the ponds and/or lakes in Romania. The potential relationships between the phytochemical compounds detected in these plant extracts (acids, phenols, heterocycles, alcohols, hydrocarbures) and the allelopathic properties against Gram positive and Gram negative bacterial strains and microalgal cultures were investigated and discussed in the current stud...
Autori: Mariana Lupoae
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26971

White pollution is a form of environmental pollution which has taken unprecedented dimensions in many cities of Europe over the last two decades. It is estimated that by 2020, European Union citizens will reduce the consumption of plastic shopping bags by 80% in ways that will be identified and implemented by each member state. Starting from these two main dimensions, necessity and opportunity, we have conducted a survey on the eco-responsible behavior of consumers in Bucharest. The main aim...
Autori: Armenia Androniceanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26972

Intensive vegetable crops are stressed by the influence of a large number of chemicals, applied to stimulate fructification, ripening, fertilization, pathogen, pest and weed control. The purpose of this study was to highlight the impact and risk on soil and vegetable plants and products during treatments application with organochlorine pesticides, on three cultivation systems: conventional, organic and in-conversion. The objective of this study was to monitor the content of organochlorine pes...
Autori: Vasile Stoleru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26976

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

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

Our study aims to analyse soil quality based on the concentrations of potentially toxic elements (PTEs) in natural or slightly modified anthropogenic soils, technosols and landfill deposits in Iasi. The pollution level analysis based on lognormal distribution plot allows the differentiation of elements coming from the parent material (Mo, Cd, Ni and As) of those with anthropogenic origin (Pb, Zn and Cu). The enrichment factor (EF) calculated based on manganese (Mn) as reference in the parent ...
Autori: Cristian Vasilica Secu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26991

Measurements were taken for Ozone (O3) and its precursors simultaneously from June to August 2008 in Beijing. We analyzed the spatial and temporal variability of O3 and its precursors and the roles of the precursors in O3 formation. The results suggest that O3 mixing ratios are higher in rural areas than in urban areas. Highest mixing ratios of VOCs were alkanes, followed by aromatics; alkenes and biogenics were present at lower mixing ratios. Because of their relatively high reactivities, ar...
Autori: Junlin An
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26994

In this study the immobilized waste black tea (Camellia synensis) was used as biosorbent for the removal and recovery of Al(III) and Cr(VI) ions from the synthetic aqueous solutions. Batch experiments were conducted to optimize the various biosorption parameters that affect the biosorption capacity of immobilized waste black tea. Maximum biosorption capacity was found with a biosorbent dose of 0.1g/100 mL for both metal ions. Optimum biosorption capacity for both Al(III) and Cr(VI) ions was o...
Autori: Haq Nawaz Bhatti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27004

A mine ventilation system provides a fresh air flow to the underground workings in a coal mine. Such sufficient air volume can dilute and remove noxious gases (typically NOx, SO2, CH4, CO2 and CO) and maintain a suitable working environment for coal miners. On the other hand, a poor ventilation system often leads to serious consequences such as mine gas explosions, production loss or higher operational costs. Hence, the functions of mine ventilation system are very important for an undergroun...
Autori: Jianwei Cheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27008

Adsorption studies of cadmium(II) were conducted on 623oK or 723oK carbonized banana peels named as BP623 and respectively BP723 as well as on the dried ones (BP). Carbonization enhances the quality of organic by-product used as adsorbent, reduces the equilibrium time and improves the quality of the final product (water). Evaluation of the effects of pH, contact time and solution temperature showed that the uptake of cadmium(II) ions was highly dependent on these factors, and increased with ...
Autori: Josiane Ponou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27009

Within the framework of the Water Safety Plan (WSP), it is necessary to assess and to manage risks in the catchment area, considered the first protection barrier of water supply systems. The Cauca River is one of the major water resources of Colombia and the principal source of drinking water supply for the city of Cali (approx. 2,300,000 people). Taking into account, usually in developing countries, available information and specialized technical resources are limited, in this study were eva...
Autori: Andrea Pérez-Vidal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27010

The diversity of life cycle impact assessment (LCIA) methods may create barriers to life cycle assessment (LCA) since the focus and outcomes generated could be quite different. Furthermore, these could lead to different interpretations and hence affect the robustness of LCA. While previous studies have attempted to compare various LCIA methods, their results are limited to the cases that were used in their respective studies. To assist LCA participants in selecting a suitable LCIA method to a...
Autori: Ya Hong Dong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27012

The arsenic removal from aqueous medium was investigated through adsorption by employing finely powdered bark of Pinus roxburghii Sarg. The batch mode laboratory scale experiments were conducted to investigate the removal efficiency of Pinus bark against total arsenic and the effect of pH, contact time, adsorbent dose and initial adsorbate concentration on adsorption to optimize the process. Langmuir and Freundlich isotherms were used to validate the adsorption data and respective constants w...
Autori: Syed Hasnain Shah
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27013

Zirconia (ZrO2) as a ceramic biomaterial facilitates the osteoconductivity in new bone formation around implant. Surface characterization before and after electrochemical testing was performed used scanning electron microscopy (SEM). The electrochemical properties of the yttrium oxide stabilized zirconium oxide (YSZ) coated and uncoated MgCa sample with the open circuit potential at different immersion time in Ringer’s solution were studied by electrochemical impedance spectroscopy (EI...
Autori: Bogdan Istrate
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27021

The removal of toxic heavy metal ions such as lead and zinc from industrial and mining wastewaters has been widely studied because their existence in surface and underground water is responsible for several types of health problems caused to animals and human beings. Also, there are some organic compounds, which must be prevented from reaching in drinking water from various sources of pollution. For these reasons in this paper the experiments were conducted to study the ability of activated ...
Autori: Cristina Ileana Covaliu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27027

Maghemite nanoparticles (γ-Fe2O3) were synthesized in order to be used as magnetic adsorbent for two heavy metals, Pb(II) and Zn(II), from aqueous solutions. γ-Fe2O3 was prepared from magnetite nanoparticles and was tested for single and binary aqueous solutions. Efficiency removal (%) for single solutions appears only after 10 minutes and was higher than 80%. In case of binary solutions, same results regarding efficiency removal were registered after 60 minutes, being almost 90% ...
Autori: Ecaterina Matei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27029

Removal of Cd(II) from aqueous streams is of special concern because of its very high toxicity and persistent nature. The sorbents based on natural and waste materials have very promising performances in the treatment of Cd(II) contaminated waters. Very few reviews are available that provide valuable information on the various aspects of the utilization of natural and waste materials for Cd(II) metal ions removal. In this context, this review examines a wide range of materials as green sorben...
Autori: Lavinia Tofan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27033

The generation of energy via fossil fuel burning results in carbon emissions. These emissions contribute to the climate change of our world, particularly in terms of global warming. On the contrary, energy has become blood of life for the existence and functioning of our built environments. In order to control carbon emissions, the UK has taken lead among many countries around the globe and especially in Europe by passing a bill for the Climate Change Act 2008 which legally binds the UK to at...
Autori: Talib E. Butt
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27045

This article refers to the fourth stage of the hydropower development of Bistrița River, upstream of the Izvorul Muntelui impoundment, in the Borca-Poiana Teiului area. The original project (described in chapter 2) was altered during the execution of works. The changes which have been made are significant: a decrease of the headrace area by 32% and the location of the power plant has been changed. The magnitude of these changes might lead to the idea that either the original project or t...
Autori: Costel Boariu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27048

Based on the new cadastral measurements that are going to be performed at the level of both territorial-administrative units and cadastral sectors, respectively, on real estates and/or parcels, the technical data of the unitary cadastral system and land register will be obtained. When referring to the cadastral territories where surface and subsurface drainage works have been performed, it is absolutely necessary to correlate the technical data resulted from the cadastral measurements with th...
Autori: Valeriu Moca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27054

The paper deals with the amounts of total and plant available forms of heavy metals (Pb, Cr and Cu) and relation between soil properties in three catenas in postglacial area of the Łyna River valley, NE Poland. The results were presented on the background of four geochemical landscapes distinguished within the study area: eluvial or trans-eluvial, eluvial accumulative, trans-superaqual and super-aqual. The average total content of heavy metals amounted to: Pb – 14.05 mg kg-1 d.m., ...
Autori: Paweł Sowiński
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27058

Sustainable development of rural areas involving rural communities is a complex and timeless research theme, as it is based on two fundamental parties, which are in close interdependence: the headspring of sustainable resources generating development, and the rural residents representing both the consumer and the active factors of the development. In this context, this paper proposes an approach addressing the strategic options for the development and diversification of the rural economy, bas...
Autori: Romulus Iagăru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27059

Corporate Social Responsibility activities bring organizations closer to the community they operate in, up to the level of making them a citizen of that community. Currently, companies invest in CSR all around the world, the phenomena being of great importance in any businesses activity. Most of the Romanian studies on the subject are performed at management level, targeting the perspective it has on the concept, the investment value they put into social activities and the general developing ...
Autori: Ionel Bostan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27066

There is an increasing social and political awareness of the importance of the development of an environmental responsibility orientation among firms. However, despite a growing interest of environmental management research in Hospitality Industry in the last decade, there are still relevant topics that have not received sufficient attention yet. Research tends to focus on large companies almost neglecting Small and Medium-sized enterprises. Based on evidence from “The Eurobarometer 381...
Autori: Ángela González-Moreno
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27078

While the water quality issues in suburban watersheds have been greatly attributed to rapid urban development and stormwater runoff, pollution contribution from agricultural practices are still significant but often overlooked. The objective of this study is to assess water quality impacts of managing both agricultural and urban lands in a suburban watershed. Neshanic River watershed is a headwater watershed with mixed land uses located in Hunterdon County, New Jersey, USA. It has 40% of agr...
Autori: Zeyuan Qiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27081

Heavy metal pollution is a major source of aquatic contamination and has deleterious effect on the environment, therefore treatment of the polluted sites and wastewater becomes very essential. Biofilm based bioremoval of heavy metals have been a new area of research. Bacterial strains belonging to the genus Bacillus, isolated from chromium polluted soil (Palar river basin, India) have been employed as consortium for Cr(III) removal from chrome tanning effluent. The bacterial isolates were fou...
Autori: Aafreen Fathima
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27086

The release of low molecular weight (LMW) organic acids under lead (Pb) and zinc (Zn) stresses in Typha latifolia (T. Latifolia) and Vetiver zizanioides (V. zizanioides) were investigated. In addition, changes in antioxidative enzymes: superoxide dismutase (SOD) and peroxidase (POD) in the leaves of T. Latifolia under Pb stress were also examined. Amongst the eight types of LMW organic acids detected in the present study, oxalic acid was found to be the most dominant during Pb and Zn treatmen...
Autori: Yu Bon Man
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27092

In this study, an interval-parameter queuing model (IPQM) for planning a municipal solid waste (MSW) management system with cost-effective objective is developed through introducing the queuing model with limited capacity into an interval-parameter linear programming (ILP) framework. IPQM can examine the effects of limited queue capacity on waste-flow allocation pattern and system cost under uncertainty. Random vehicles have to wait in queue due to limited capacities for disposing MSW, leadin...
Autori: Yongping Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27094

This paper reports the potential of rice husk waste biomass to remove copper (II) from simulated wastewater under different experimental conditions. For this, rice husk has been pre–treated by boiling, formaldehyde and concentrated sulphuric acid. Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy and Energy dispersive analysis X–ray analyses were performed before and after adsorption, to explore number and position of the functional groups available for copper ...
Autori: Manjeet Bansal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27095

This study proposes a modified fractional fuzzy simulation (MFFS) method to predict the toluene and oxygen concentrations in aquifers under microbial attenuation conditions. The method integrates the modeling of groundwater flow contaminant transport and fuzzy parameters analysis within a general framework. Compared to conventional fractional fuzzy simulation (FFS), decreased interior points of fuzzy parameters need to be used, thus reducing the simulation time. The method is applied to an a...
Autori: Li He
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27106

Biological control relying on soil microorganisms may offer feasible and sustainable perspectives in many agrosystems for management of soil pests such as root-knot nematodes (RKNs, Meloidogyne spp.). The rhizosphere environment shows a complex of soil microbial communities, including beneficial organisms such as specialized bacterial pathogens and/or of rhizosphere fungi. New advanced technologies like Next Generation Sequencing (NGS) may enlarge our knowledge about the biodiversity and rol...
Autori: Aurelio Ciancio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27109

We computed the Product Environmental Footprint (PEF) to identify the environmental performance of recycled wool by means of data belonging to a real case study in Italy. First, we analyzed inventory data quality by computing the data quality rating (DQR) index, according to the criteria provided by the PEF protocol. Quality of specific and generic data (selected from the Ecoinvent database) was evaluated as excellent and good, respectively. We then quantified the impacts related to each rele...
Autori: Silvia Bamonti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27121

This work focuses on treatment of lead polluted waste glass from urban collection (Pb≈5% wt) for its valorization as support in the immobilization of lipase, because soda-lime glasses are used in enzymatic catalysis. First of all, an extraction process of surface Pb was performed. The process is based on nitrilotriacetic acid (NTA) chelating agent. The operating conditions are: T=80°C, t=1h, pH 10, solid/liquid weight ratio=1/10, reagent concentration=0.1 M. Leaching tests at contr...
Autori: Luisa Barbieri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27122

The Project “Green - Industrial Symbiosis” (G-IS), in Emilia Romagna region (IT), took place in two phases: phase I, 05.2013 – 03.2014; phase II, 10. 2014 – 10.2015. During the first phase, it was completed the first part of the pilot project of industrial symbiosis (IS) in Emilia-Romagna, which involved 13 companies in the agro-industrial sector, 7 laboratories of the High Technology Network, with Unioncamere and Aster (promoters) and ENEA (technical and scientific co...
Autori: Laura Cutaia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27124

In this study, the toxic effects of binary mixtures of Pharmaceutical Active Compounds (PhACs) that are observed in the effluents from a wide range sewage treatment plants and surface water bodies were investigated using the bioluminescent bacterium Aliivibrio fischeri (Microtox® test). The selected chemicals were the nonsteroidal anti-inflammatory drug (NSAID) diclofenac sodium [DCF] and the anti-epileptic carbamazepine [CBZ]. In addition, caffeine [CFF], a psychoactive stimulant of the...
Autori: Valeria Di Nica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27126

In this paper the problem of water leakage is shown widely as well as the impact in Mexico resources, which is reflected in a huge economic and environmental impact. Also several leak detection systems and methodologies are presented in a comparative analysis that was carried out in order to provide the reader a clear idea of how the operation of the systems are affected by means of various factors which in turn leads the reader to know about the requirements of systems and methodologies and ...
Autori: Pedro Rosas Quiterio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27137

In this study, the impact of silicate admixture in 2-line ferrihydrite on its sorption properties is presented. Synthetic ferrihydrites with broad Si content in the range of 0 to 1.5 Si/Fe molar ratios were prepared and characterized using X-ray diffractometry (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM-EDS). With an increase in the Si/Fe ratio, a typical XRD peak at 2.5Å broadens and shifts toward 3 Å; the position of Si-O stretchi...
Autori: Gabriela Pieczara
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27140

Occurrence of antibiotics and heavy metals, together with concentrations of conventional pollution indicators were assessed in digested piggery wastewater (DPW) generated in ten large-scale pig farms in Jiaxing City, China. Results showed that water quality of DPW varied in different farms as well as in different seasons. Digested piggery wastewater pollution tended to be less serious in Summer than in Spring, Autumn and Winter. Conventional pollution indicators of chemical oxygen demand (COD...
Autori: Rui Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27159

Dried Typha angustifolia (TA) leavesor commonly known as the common cattail were evaluated as an adsorbent for the adsorption of lead in synthetic aqueous solutions. Equilibrium studies were conducted in a batch mode and the selected sorption isotherms were then applied. Equilibrium was achieved after 8 hours. The selected sorption isotherms were the Langmuir, Freundlich, D-R and Temkin model. Data fitting was done based on linear regression analysis. The adsorption system fitted the Langmui...
Autori: Yen Ling Sharain-Liew
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27166

A new material containing 2-(2′ thiazolylazo) p-cresol (TAC) grafted poly acrylamide (PAA) was prepared and its adsorption ability was studied for the removal of inorganic mercury from aqueous media. Adsorption of Mercury (II) ions from aqueous solution was investigated in detail as a function of mercury concentration, pH, ionic strength, and temperature. The adsorption data were analyzed by using the Langmuir, Freundlich and Dubinin-Radushkevich (DR) models. The adsorption of Mercury (...
Autori: Selçuk Şimşek
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27170

Convergence, that is the concentration of human populations into small areas, has been common throughout history. However, convergence has now reached historically unprecedented levels. Historically, convergence has tended to increase the long-term risk to humanity caused by many factors, including the associated environmental damage. Large cities appear to be at greater risk of unforeseen disasters, and may even collapse when some maximum sustainable size is exceeded. Based on a review of publi...
Autori: Xin Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27173

Equilibrium and kinetics of biosorption of lead(II) from aqueous solutions by local low-cost agricultural by-products – peanut hulls, soybean shells and grapefruit peels were compared to develop high-efficient and low-cost biosorbents for removal of lead(II) from wastewater. Batch kinetics showed adsorption equilibrium at about 90 min and the adsorption process for the three biosorbents was better represented by the pseudo-second-order model than the pseudo-first-order model. Batch equilib...
Autori: Rui Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27176

In this study, chitosan-iron(III) was used as adsorbent of the dye acid red 29. The effect of pH, temperature and concentration of the dye on the adsorption capacity were evaluated. The maximum adsorption capacity was calculated from the adsorption isotherms which were well fitted by Sips isotherm model. The process followed the kinetic model of pseudo-second-order. The activation parameters showed that the adsorption process is spontaneous and favorable. A decrease in adsorption capacity was ob...
Autori: Carla Albertina Demarchi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27181

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

The aim of this research is to investigate adsorption characteristics of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II) complexes with MGDA (methylglycinediacetic acid) from aqueous solutions by using the multifunctional chelating ion exchanger Diphonix. MGDA, belonging to a group of new generation complexones which readily undergo biodegradation, is patented by BASF and marketed under the brand name Trilon M. Optimum adsorption conditions were determined as a function of phase contact time, ...
Autori: Justyna Jachuła
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27183

Hexavalent chromium, Cr(VI), is one of the toxic heavy metals released into the environment by a number of industries, so it is crucial to limit its further discharge into the environment. In the present study, the aerobic reduction of Cr(VI) to less mobile and less toxic Cr(III) by Aspergillus niger was investigated. The potential of this fungus strain as biocatalyst was capable of resisting Cr(VI) up to 300 mg/L. The effects of the process parameters such as solution pH, initial Cr(VI) concent...
Autori: Farshid Ghanbari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27194

This paper presents an advanced numerical algorithm for the optimization of the current density distribution in electrochemical applications. The optimization principle consists in the distortion of the electric field by an insulating shield properly positioned between the electrodes. Such a distortion influences the distribution of current density at the electrodes under consideration. The electrochemical problem is approached by a Laplace equation which is numerically solved using a mesh-free ...
Autori: Alexandru Avram
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27199

Intensive cereal crops planted on soils from the Western part of Romania determine, annually, significant losses of essential microelements and macronutrients for plant development from the agricultural soil, which lead to the depletion of such lands. Fly ash (FA) resulted from coal combustion at the CET Timisoara power plant, can be used as supplement to an organic fertilizer, such as manure (M) to restore the balance of micro- and macronutrients, important to obtain healthy cereal crops and hi...
Autori: Smaranda Masu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27208

Date pits were used as a low-cost adsorbent to study the effective removal of copper (II) ions in an aqueous solution on the basis of adsorption kinetics and isotherm equations. Before and after the adsorption process, the date pits were characterized by electron scanning microscope (ESM) as well as Infrared spectroscopy (IR). The effects of the pH, zero point of charge, the adsorbent mass, and the adsorbent particle size on the adsorption of copper (II) were also studied. Equilibrium data were ...
Autori: Tarek E. Khalil
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27212

In this study, the biosorption of zinc(II) ions from the aqueous solutions by the lichen biomass of Xanthoria parietina (L.) Th. Fr. was studied as a function of contact time, initial pH of metal solution, biosorbent concentration, initial metal ion concentration and stirring speed in a batch system. The optimum pH value for maximum zinc biosorption was found to be 5.5. Concentrations intervals from 50 mg/L to 250 mg/L were tested and it was observed that the biosorption efficiency depends on th...
Autori: Zuleyha Bingul
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27213

Banana stalk (BS) waste is used to remove Pb2+ from aqueous solution. Equilibrium data were analyzed with Langmuir and Freundlich adsorption models, which fit better in the former equation. The qmax (maximum metal uptake capacity) for Pb2+ adsorption was 105.14 mg/g of BS at pH 5.0, which followed pseudo-second order kinetics model. IR spectra confirmed the participation of hydroxyl, amino, and acidic functional moieties in the removal of Pb2+. The major mechanism involved in the biosorption of ...
Autori: Kashif Iqbal Sahibzada
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27214

The radiofrequency (RF) electromagnetic fields represent one of the most common and fast growing environmental influences, raising concerns about possible effects on human health. The fact that there is a continuous change and an emergence of RF communication technologies on the market also leads to a change of daily RF exposure levels for the general public. In such a context, the main objective of our study is to assess the RF exposure originating from the emerging Worldwide Interoperability f...
Autori: Eduard Lunca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27215

Adsorption equilibrium, kinetic and dynamic studies were done for removal of zinc (II) from aqueous solutions using alunite ore. The alunite sample was characterized by using X-ray fluorescence (XRF), optical microscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) porosimetry, differential thermal (DTA), and Thermogravimetric (TG) analyses. The batch equilibrium adsorption data of zinc (II) ions onto alunite particles were applied to some...
Autori: Hoda Arabyarmohammadi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27216

The application of advanced oxidation processes (AOPs) emerged as an interesting topic during the last decade. Many studies have been devoted to the complexity of phenomena imposed by AOPs, and a lot of effort was made to justify the application of AOPs. However, the reliability of AOPs has not been an issue of any extensive work. In this work, failure analysis and comparative reliability study were performed for the chosen AOP system, i.e. a laboratory scale photo- and sonoreactor, during the p...
Autori: Ivana Grčić
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27220

In this paper photo-oxidative degradation of degradable mulching films was studied. Low-density polyethylene (LDPE) films were denominated as 3# and 4# (containing 3.43% and 0.44% degradable masterbatch, respectively), They were exposed to different irradiation condition of i: ultra violet A irradiation (UVA), ii: ultra violet A and B irradiation (UVA-B), both at 58±2°C. The physical chemical property of the plastic film is influenced by factors in many aspects, especially the composi...
Autori: Ya-xi Huang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27232

The present study was aimed at examining the ability of the natural zeolitic tuff from the Zlatokop deposit in Serbia to remove Pb(II) ions from aqueous solutions under various conditions. It has been found that the adsorption proceeds via an ion-exchange reaction in which the Na+ ions from the clinoptilolite phase of the tuff are replaced to a high degree by aqueous Pb(II) ions. The removal capacity of the clinoptilolite at 298 K varies from 78 mg Pb g–1 (for C0 = 100 mg Pb dm–3) to...
Autori: Djordje Stojakovic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27234

Based on more than 25 years of research in the field of agritourism, the current work represents a pertinent, realistic and critical analysis of the main factors favourable to the implementation and development of agritourism and rural tourism in Romania. Firstly, we examined the main natural and anthropic tourist resources which constitute the country’s tourist treasures, and we concluded that Romania has rich, varied and attractive tourist resources that have not been fully exploited and...
Autori: Aurel Călina
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27237

The aims of this research are (1) to analyze the topic of forests in Romania as presented in scientific literature and (2) to identify the Romanian Geography teachers’ perceptions of and opinions about (a) the consequences of human actions on the situation of forests in Romania, (b) their own actions that lead to diminishing vulnerability and risks for forest clearances, (c) factors that influenced their attitude and behavior towards forests, and (d) suggestions for actions of forest prote...
Autori: Maria Eliza Dulamă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27238

In this article we present the results of the study concerning the relationship between the concentration of trace elements (lead, chromium, cadmium, cobalt, copper, zinc and nickel) in soil and in the leaves and bark of Populus nigra L. The samples were collected in the period May 2010 – October 2010 in two areas from the Romanian North Littoral of Black Sea. The concentrations of the trace elements in soil, leaves and bark were determined using Flame Atomic Absorption Spectrometry (F...
Autori: Lucica Barbeş
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27239

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

In this study, silica gel initially reacted with N-(2-aminoethyl)-3-aminopropyl-triethoxysilane and subsequently with formaldehyde resulted in a modified solid that contained amino imine groups, Sil2NCH2. The solids were characterized by CHN elemental analysis, thermogravimetric analysis (TGA/DTG), FTIR spectroscopy, 13C solid-state NMR, and nitrogen adsorption/desorption measurements. The adsorption of Cd(II), Pb(II) and Cr(VI) ions onto Sil2NCH2 in aqueous solutions were examined to study the ...
Autori: Franklin Pessoa Aguiar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27242

A model for parametric atmospheric transmittance in the UV range, embedding a biological action spectrum is reported. The resulting equations may be used straightforwardly for an algebraic calculation of the effective solar irradiance under clear sky and of the biological dose. Following the procedures described in the paper, various action spectra can be encapsulated into the atmospheric transmittance, besides the generalized plant response action spectrum used as example, leading to a collecti...
Autori: Nicoleta Stefu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27243

The capability of ornamental rocks solid waste (ORSW) as a low-cost sorbent was investigated in order to remove As(V) and Mn(II) from aqueous solution. Physical-chemical characterization analyses of the raw material presented albite and quartz as the main minerals. The solid waste presents low surface area (209.70 m2/g). The Langmuir, Freundlich, Sips (Langmuir-Freundlich), Redlich-Petersen and Tóth models were used to analyze sorption phenomena. The maximum sorption capability from the e...
Autori: Fernando Jorge Santos Oliveira
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27246

Developing countries have seriously low adoption rates of sustainable agricultural practices (SAPs) and there is a need to understand why. This paper reviews 31 past studies focusing on the factors influencing the adoption of SAPs. Using a vote count methodology, SAPs adoption is revealed as a complex set of behaviors which depend on a range of socio-economic, agro-ecological, institutional, informational, psychological factors and perceived attributes. Identified within these six dimensions, ma...
Autori: Yeong Sheng Tey
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27253

Reuse of grey water is an attractive option when available water supplies are limited, and can reduce demand on water supplies and provide additional water resource. This comparative research was conducted to assess the suitability and effects of reusing grey water, treated and untreated, as irrigation water for vegetables, compared with tap water. Tomato (Lycopersicon esculentum) and green bean (Phaseolus vulgaris) plants were selected as examples. The collected grey water samples were treated ...
Autori: Jehad Y. Al-Zou by
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27254

The objectives of this paper are to investigate whether the integration levels achieved by Catalan companies are related to their choice of the options for Management System Standards (MSSs) and to research the relationships of the perceived adequacy of using new MSSs and Business Excellence Models (BEMs) with Integrated Management Systems (IMSs). To test these relationships, data was obtained from 76 organizations which responded to a survey on IMSs, the options for MSSs and the possibilities r...
Autori: Alexandra Simon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27258

Composted livestock waste (CLW) was studied as one low-cost material to remove Pb(II), Cu(II), Cd(II) and Zn(II) from simulated acid mine drainage (AMD) by batch and column experiments. The adsorption isotherm data were well fitted by the Langmuir model. The maximum monolayer adsorption capacities were 0.5485 mmol/g for Pb(II), 0.4092 mmol/g for Cu(II), 0.2246 mmol/g for Cd(II), and 0.1879 mmol/g for Zn(II) at pH 4.0. Due to the competition effect, the adsorption capacity of the single metal ion...
Autori: Mingliang Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27262

Current research details methodological framework for the land planning of the recreational activities based on ecologic approach. Human impacts on landscapes caused by touristic activities should be in accordance with sustainability level, i.e. without changing natural landscape elements, their function and processes, as well as environmental quality. Region of Štiavnické Bane in Slovakia represents a case study area that is completely under nature and landscape conservation. The ...
Autori: Michal Klaučo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27264

In this work, twenty different physical and chemical methods were used to study the effect of pretreatment on Cr(VI) and Cd(II) biosorption by an aquatic plant (Ceratophyllum demersum) biomass. The H3PO4 boiled biomass had the highest biosorption capacity (45 mg/g) for Cr(VI). The NaOH boiled biomass showed a higher biosorption capacity for Cd(II) (63 mg/g). Dunnett's test was carried out to compare the biosorption capacity of raw biomass with those pretreated by H3PO4 and NaOH, and the resu...
Autori: Pari Teymouri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27265

This study investigates the adsorption of several metals in aqueous solution, by hemp materials (loose fibre and felted fibre). After characterization of the fibre, an extensive study was conducted on the adsorption properties of this material. The experiments were carried out in poly-metallic aqueous solutions containing Al, Co, Cr, Cu, Ni and Zn at a concentration of 1 mg L-1 and 10 mg L-1 each. The pH effect was found to lead to an optimum between pH 4 and 4.5. The kinetics of the adsorption ...
Autori: Justine Bugnet
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27272

The Romanian peat was used as low-cost adsorbent to remove Cd(II) ions from aqueous solutions. The cadmium adsorption capacity of the peat was studied as a function of the solution pH (3-5.5) and temperature (293 – 333 K). Adsorption capacity was found to increase with the pH increasing and temperature decreasing and attained a maximum value of 27.9 mg/g at pH = 5±0.1 (acetate buffer) and 293 K. In addition, various thermodynamic parameters such as free energy change (ΔG0), en...
Autori: Catalin Balan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27276

This study aims to evaluate the effects of Fe2+ present in carbonated natural mineral waters on the decomposition of hydrogen peroxide (H2O2) used as sanitizing agent of the collector water tanks and the oxidation of NH4+ to NO3– and NO2– nitrogen compounds from bottled carbonated natural mineral water by the Fenton process. This evaluation suggests that the distribution of the nitrogen compounds, at certain concentrations of H2O2 is influenced by facilitated Fenton reaction in the p...
Autori: Daniela Bogdan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27279

Water is the source of life and a high water quality leads to a harmonious development of the surrounding environment (biotic and abiotic) and of humans. When water is loaded with various chemicals due to erosion, corrosion and human activities, the pollution phenomenon appears, causing harmfull effects over plant and animal organisms. The presence in water of substances derived from agriculture or mismanagement of manure organic obtained from various species of domestic animals affects the envi...
Autori: Alina Simionică Bădilă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27285

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

Researches and analysis of heavy metals concentrations in the fish species exploited as a food source are of great interest due to long term toxic effects on human health even at very low concentrations. Therefore, we have conducted this study in an area of great interest in terms of aquatic biodiversity, but also of tourism and trade. Depending on the degree of toxicity in delta aquatic ichtyofauna, five heavy metals (Cr, Cu, Hg, Ni, Pb) and a metalloid (As) concentrations were measured in the ...
Autori: Adrian Burada
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27293

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

There are industrial processes where cold and heat are used. In such a process, a heat pump integrated into a refrigeration system lead to energy savings. This paper analyzes two-stage compression refrigeration combined with a compression heat pump. A case study is made based on a proposed mathematical model and on the measurements performed in an ice cream company. Three operation regimes are simulated for different hot water temperatures obtained from the heat pump. The energetic efficiency, e...
Autori: Aneta Hazi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27297

The present work illustrates the results of a long-term field experiment with sewage sludge used on agricultural land in order to assess the influence of sewage sludge on wheat crop productivity. The experimental research was conducted for three years as following: the evaluation of the agricultural use of sewage sludge in the year of application and its residual effect in grain and in soil for the next two years. The sewage sludge considered in the framework of the study was from Sfantu Gheorgh...
Autori: Diana Mariana Cocarta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27303

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

Industrial packaging waste as an object of reverse logistics has nowadays from environmental and cost perspective become a huge task especially in retail. In addition to that most costs come from transportation, which if not rationalized leads to negative environmental impacts. The research consists out of two parts, where the first part provides an overview of domestic and foreign literature in the field of environmental impacts caused by transportation of packaging waste in retail and, the sec...
Autori: Vaska Pejić
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27311

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

With population growth and increasing industrialization, enormous amounts of agro-industrial wastes are being produced. Without proper use, these keep piling up leading to tremendous pressure on environmental safety. There is also considerable economic interest not only in the proper utilization of these wastes, but also in developing appropriate processes for this purpose. Sludge generated in pulp and paper mills is one of such solid wastes. Although several studies have investigated its reuse,...
Autori: Patrícia Raquel Silva Zanoni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27320

In the current context of industrialization, chemical and radioactive pollution is a concern for environmental protection and interference with human health. Care for environmental protection also includes vegetation that grows spontaneously in potentially contaminated places, thus avoiding illness among the population if consumed. The study area is located at 4.5km SSE from downtown Bacău City, Romania and is the result of the manufacture of H3PO4 through the wet method. In this study, t...
Autori: Mioara Săndulache Rachieru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27331

Inventory and monitoring of total organic carbon stock (TOC) it’s an issue of actuality in the context of breaking into the atmosphere an alarming quantity of CO2 result of human activities. Management and sustainable management of forest and agricultural ecosystems can have a positive influence on maintaining optimal stock of carbon sequestered. A case study achieved in the Humor catchment reveals that changing the land’s utility means important modifications in the quantity of the ...
Autori: Eugen Rusu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27336

In quarries, hard rock blasting is done effectively using explosives for civil use. Perhaps, the most used technical solution for decreasing the seismic effects due to blasting is sequential blasting in front of the quarry. This technical solution involves the use of proper means of initiating explosives, which have to meet certain characteristics able of leading to the achievement of the intended purpose. This paper describes one of the methods of verification and the testing results for non-el...
Autori: Edward Gheorghiosu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27354

Discomfort caused by noise is ever-present, having numerous physiological, psychological and social implications. One of the most important discomfort factors for personnel working in the processes of surface coal extraction is represented by noise. This paper examines how noise generated by the process of lignite extraction influences the working capacity of employees. The covering effect of voice or different sound and verbal signals, during work, leads to tiring efforts of attention, thus de...
Autori: Sorin Simion
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27366

Application of the occupational safety self-assessment starts with a document containing dashboard, description of the company (name, location, object activity, organization etc.), description of the work detailing with its components and a brief description of the method of self-evaluation. It continues with a Microsoft Excel document, that is the actual application method and a second document presenting conclusions and prioritizing proposals that may lead to the execution of the protection an...
Autori: Costica Bejinariu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27370

In the process of underground coal mining a complex network of vertical, horizontal and inclined mine workings with the purpose of extraction, transportation and evacuation to the surface are utilized. The mining workings are also being utilized for ventilation network system, which is also used for ensuring the oxygen supply necessary for workers, as well for diluting explosive gases and/or toxic substances and, ultimately, for exhausting the heat resulted from underground workings. For air flo...
Autori: Marius Simion Morar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27372

The electronic waste (e-waste) is increasingly flooding Asia, especially in developing countries. E-waste could precipitate a growing volume of toxic input to the local environment if it was not handled properly. This brings the evaluation of environmental impact from electronics an essentially important task for the life cycle assessment (LCA) and the end-of-life management of electronic products. This case study presented a quantitative investigation on the environmental impact analysis on ele...
Autori: Srivalli Chellvarajoo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27384

Effective adsorbents were developed from sewage sludge by chemical activation with different activators (5M ZnCl2, 3M H2SO4, 3M H3PO4, 5M ZnCl2: 3M H2SO4, and 5M ZnCl2: 3M H3PO4). The developed adsorbents were used for the removal of the heavy metals Cd (II), Pb (II), Cu (II) and Mn (II) from wastewater. The effect of several parameters (pH, initial metal ion concentration, adsorbent dose, contact time and solution temperature) on the metal adsorption capacity were evaluated by batch experiments...
Autori: Mohamed Nageeb Rashed
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27385

Chemical precipitation is an effective and relatively low cost method for removal of heavy metals. The removal of lead ions from wastewater by a precipitation process was investigated using sodium sulfide and sodium carbonate. Precipitation experiments were performed using storage battery wastewater with lead concentration of 8.8 mg/L and synthetic wastewater with different lead concentration ranging from 5 to 600 mg/L. A series of experiments (each concentration) were carried out under differen...
Autori: Mehraban Sadeghi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27388

• EXPERIMENTAL INVESTIGATION OF TEMPERATURE EFFECTS ON THE PARAMETERS OF PHOTOVOLTAIC PANELS    • CONCENTRATIONS OF CHROMIUM, CADMIUM AND NICKEL IN TWO CONSUMED FISH SPECIES OF PERSIAN GULF, IRAN    • IMPROVING THE ENERGY EFFICIENCY OF RESIDENTIAL BUILDINGS BY USING A DRAIN WATER HEAT RECOVERY SYSTEM    • ASSESSMENT OF METAL CONTAMINATION AND ECOLOGICAL RISK IN URBAN SOILS SITUATED NEAR A METALLURGICAL COMPLEX    • FINANCIAL DE...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27398

EXPERIMENTAL INVESTIGATION OF TEMPERATURE EFFECTS ON THE PARAMETERS OF PHOTOVOLTAIC PANELS    • CONCENTRATIONS OF CHROMIUM, CADMIUM AND NICKEL IN TWO CONSUMED FISH SPECIES OF PERSIAN GULF, IRAN    • IMPROVING THE ENERGY EFFICIENCY OF RESIDENTIAL BUILDINGS BY USING A DRAIN WATER HEAT RECOVERY SYSTEM    • ASSESSMENT OF METAL CONTAMINATION AND ECOLOGICAL RISK IN URBAN SOILS SITUATED NEAR A METALLURGICAL COMPLEX    • FINANCIAL DEVELOPME...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27399

A worldwide trend is leading the international community to explore the possible paths for the transition from a linear to a circular economic model. Recent studies identified the main enabling factors to facilitate this transition, among which closed loop logistics models and new service-based and function-oriented business models play a significant role. The diffusion of new business models relating to the use of a product rather than its ownership can indeed reduce material consumption and th...
Autori: Maria Grazia Gnoni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27418

Three different synthetic textile dyeing wastewaters were treated by a chemical coagulation/flocculation process, using ferric sulphate as coagulant. Polyacrylamide (Magnafloc 155) and polyamine (Superfloc C-573) based flocculants were applied. The influence of pH (between 3.5 and 10.4) and Fe3+ concentration (from 15 to 4000 mg/L) in both color and dissolved organic carbon (DOC) removal of polyester, cotton and acrylic dyeing wastewaters was assessed in the coagulation stage. As far as floc...
Autori: Carmen S.D. Rodrigues
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27427

This paper reports an improved chlorolignin (CL) oxidative decolorization in alkaline media by the use of a heterogeneous system consisting of hydrogen peroxide and a silica [bis(dibenzoylmethido) copper II] (S1) catalyst. The catalytic functions of S1 in the presence of H2O2 were evaluated by comparing the chlorolignin decolorization in media with and without addition of catalyst. Since decolorization is associated with CL degradation, the pH variation and chloride release assays were carrie...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27448

In this study, the adsorption of Cu(II) ions on the uncalcined and calcined nanocrystalline hydroxyapatites was investigated. The nanohydroxyapatites were prepared by wet coprecipitation method and their physicochemical properties were investigated using XRD, BET and SEM-EDX analysis. The uncalcined and calcined hydroxyapatite samples have crystal sizes smaller than 100 nm and a specific surface area of 325 m2/g and 69 m2/g, respectively. The effects of solution pH, adsorbent dose, initial solut...
Autori: Ana Maria Mateiuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27464

Municipal Solid Waste (MSW) disposal is currently one of the major environmental issues in big cities. Several tools and techniques have been developed for Environmental Impact Assessment (EIA) of MSW disposal options, including scoping, checklists, matrices, qualitative and quantitative models and decision-support systems. Rapid Impact Assessment Matrix (RIAM) is a partially new method which is particularly advantageous over others as it provides a transparent and permanent record of analysi...
Autori: Zohreh Aliakbari-Beidokhti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27465

An evolutionary game of environmental regulation among local governments in China was established in this paper, and we analyzed the dynamic evolution rules of the environmental regulation strategy among local governments as well as the impact of environmental regulation on regional ecological efficiency in China by using the spatial panel simultaneous equations based on the panel data of various regions in China from 2007 to 2014. The research results show that the local government will adjust ...
Autori: Li Xing
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27471

In the present study the potential of a gene fusion between the arsB promoter from Synechocystis 6803 and the bacterial luxAB genes was evaluated to be used as a cyanobacterial bioreporter for monitoring the bioavailability of inorganic arsenic species. A whole-cell bioreporter strain, designated arsLux, was constructed based on this fusion. In concert with the specificity of the promoter presented earlier, luminescent signal could be detected upon exposure to arsenite, arsenate and antimonite, ...
Autori: Loredana Peca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27473

An apatitic calcium phosphate gel (HaG) was elaborated and used to treat municipal wastewater in a physicochemical cycle prior to the standard biological degradation process. Preliminary laboratory batch experiments outlined the kinetics of heavy metal sorption by monitoring the concentrations found in filtered fractions as a function of treatment time. On site experiments were performed in a municipal wastewater treatment plant by derivation of real wastewater into an experimental tank. In this...
Autori: Nathalie Lyczko
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27488

This study investigates the dynamic relationship between economic growth, energy consumption, financial development, and CO2 emissions at macro level in the case of 49 countries from Europe and Central Asia over a two-year period. The research focuses exclusively on country-level characteristics and uses a heteroscedasticity-consistent standard error estimator (HC3) to analyze the aforementioned relationship. The proposed econometric models test whether: i) the level of development of financial ...
Autori: Marilena Mironiuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27494

Fungal isolate Aspergilius niger V-8 (IITB) was isolated from the sludge of anaerobic digester of distillery wastewater treatment plant and was found to be an appropriate fungal isolate for the purposes of decolourization of anaerobically digested molasses spentwash (ADMS). The study aimed at optimization of the environmental parameters for achieving maximum decolourization of ADMS using isolated fungal species. Environmental parameters like initial pH, mixing, immobilization and surfactant a...
Autori: Mrityunjay Singh Chauhan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27502

Köyceğiz-Dalyan Lagoon is situated in the southwestern region of Turkey. The area between the Köyceğiz Lake and the sea is covered with four small lakes and numerous canals. The Dalyan Channel network connects lake to the Mediterranean Sea is one of the most important reproduction areas for Mediterranean Sea turtles. The objectives of the present study are to evaluate the influence of channel traffic and Köyceğiz Lake on the water quality of Dalyan Channel by evalua...
Autori: Başak Kılıç Taşeli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27507

Average emission factors of air toxic compounds, emitted from motorcycles in Bangkok, Thailand were analyzed using the IVE (International Vehicle Emission) model. The model was utilized taking into account the actual fleet and characteristics of motorcycles of the study area. Four air toxic compounds (namely benzene, 1,3 butadiene, acetaldehyde and formaldehyde) and their emission rates were calculated under two main pollution abatement scenarios (the improvement of fuel quality and switching of...
Autori: Pantitcha Outapa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27513

Renewable energy investments may be threatened by uncertainty regarding current support regulations. Incentives for investments would need to integrate more aspects regarding the companies that enter the renewable energy market. The current paper explores the triggering events for corporate entrepreneurship that lead to investments in the renewable energy field. It presents an empirical analysis based on a qualitative approach, aiming at identifying which types of triggering events influence ...
Autori: Adrian Dumitru Tanţău
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27517

This paper investigates the macrophyte Azolla pinnata modified with sodium hydroxide, as a bioadsorbent for Cu2+ and Pb2+ ions in synthetic solutions. Biomaterial characterization was performed using Scanning Electronic Microscopy (SEM); Energy- Dispersive X-Ray Spectroscopy (EDX); Fourier Transform Infra-red (FTIR) spectroscopy techniques and through the blocking of carboxylic and sulfonic functional groups. Kinetics of the process has highlighted a quick and efficient adsorption, even in low ...
Autori: Arielle Barros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27532

The potential use of a novel low-cost adsorbent, Eupatorium adenophorum Spreng, as a solution to remove Cr(VI) ions from aqueous was reported. Effects of various regulating parameters, such as pH value of reaction, adsorbent dosage and temperature, were investigated. To fit the adsorption equilibrium data, Langmuir isotherm and Freundlich isotherm were invoked. Additionally, thermodynamic parameters of the adsorption process, such as ΔG, ΔS and ΔH, were also calculated. The res...
Autori: Chen Jin-fa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27535

Reduction of environmental pollution in general, and emissions of greenhouse gases in particular, remain priorities for the sustainable development of human society. The strategies applied for designing industrial manufacturing processes were radically changed; nowadays the focus is mainly on the efficient use of energy sources. This means that at this moment there is a huge demand for innovative environmentally friendly technologies, for various industrial processing sectors. Electromagnetic fo...
Autori: Dorin Luca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27539

This paper describes the preparation and use of a low cost biosorbent made of castor leaves for the extraction of Cu(II) from an aqueous medium. The biosorbent was characterized by Fourier transform infrared spectroscopy (FTIR), surface area and pore diameter measurements. The results showed absorption bands of carboxylic and amide groups at 1738 and 1540 cm-1, respectively, and the measured surface area was 1.3728 ± 0.0160 m2 g-1, with predominance of microporous < 10.51 Å. ...
Autori: Milene S. Pereira
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27540

In this paper, a model based on Back-Propagation (BP) artificial neural network was proposed, as a tool predict the soil suitability for cultivation in Jiangxia district. The model takes the soil nutrients indicators as the input and the level of soil suitability as the output. The correlation analysis showed that the correlation coefficient between expected output and actual training result is 0.99. The simulative results indicate that the learning and generalization ability of the model perfor...
Autori: Zhuoyan Feng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27546

Based on principal-agent model, this paper tries to solve the asymmetric information problem between the investor and agriculture leading enterprises. A mathematical model of the incentive contract is designed, on the basis of which it is investigated the design of the incentive contract under different risk preference, the change of the income when implementing the incentive contract and the changing trends of the contractors’ costs when an observable variable is included in the incentiv...
Autori: Xitai Sheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27547

The synthesis and the study of the complexes obtained in this paper represent the beginning of our research for applied coordinative compounds of this type in agriculture. The analysis and the study of Mn(II) complexes with DL-β-Aminoisobutyric acid as ligand were accomplished in aqueous and alcoholic solution and also in solid state.The composition ratios and the stability of the synthesised compounds were analysed with specific methods: conductance, pH measurements, spectrophotometry and ...
Autori: Doina Sibiescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27549

Among the organic pollutants, the chlorinated phenols represent an important class of compounds having a stable world market of ca. 100 kt per year. Due to their aryl structure and presence of the chlorine atom, chlorinated phenols are exceptionally recalcitrant toward chemical reactions aimed at their reduction. Adsorption from liquid phase has received special interest due to its flexibility and simplicity in operation. Especially adsorption using activated carbon (AC) has been recognized by t...
Autori: Marius Sebastian Secula
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27552

The potential of Sphagnum moss peat to adsorb oxyanions (As(III), As(V), Sb(III), Sb(V) and Se(VI)) from aqueous solution was studied in batch mode. For arsenic (both species) and selenium, the results were negative: moss peat is not able to retain these oxyanion. For antimony, the hydroxyl and carboxyl groups from the Sphagnum moss peat surface seems to be responsible for Sb uptake. Kinetic studies were conducted for both Sb(III) and Sb(V) and a fast uptake process was observed, equilibrium bei...
Autori: Gabriela Ungureanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27565

Environmental quantitative risk assessment requires the development of multimedia modeling tools to address dynamic site conditions at field scale. This work is the second part in a two-part series. A new fuzzy-set enhanced environmental multimedia modeling system (FEMMS) has been presented in Part I. Environmental multimedia modeling often involves a sizeable amount of parameters and data. The challenges have been the difficulties to quantify the uncertainties and to manage the data and main mo...
Autori: Zhi Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27573

• Environmental engineering and Management Journal No. 4    • AN ENHANCED ENVIRONMENTAL MULTIMEDIA MODELLING SYSTEM (FEMMS): PART II – USER INTERFACE AND FIELD VALIDATION    • COST-EFFECTIVENESS OF OPTIMIZING CONCENTRATED FEED BLENDS TO DECREASE GREENHOUSE GAS EMISSIONS    • FATE AND BIODEGRADATION OF ESTROGENS IN THE ENVIRONMENT AND ENGINEERING SYSTEMS – A REVIEW    • ANALYSIS OF THE MATERIAL COMPOSITION OF MIXED MUN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27577

• Environmental engineering and Management Journal No. 4    • AN ENHANCED ENVIRONMENTAL MULTIMEDIA MODELLING SYSTEM (FEMMS): PART II – USER INTERFACE AND FIELD VALIDATION    • COST-EFFECTIVENESS OF OPTIMIZING CONCENTRATED FEED BLENDS TO DECREASE GREENHOUSE GAS EMISSIONS    • FATE AND BIODEGRADATION OF ESTROGENS IN THE ENVIRONMENT AND ENGINEERING SYSTEMS – A REVIEW    • ANALYSIS OF THE MATERIAL COMPOSITION OF MIXED MUN...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27576

The impacts of anthropogenic activities on the water and sediment fluxes in coastal areas have caused significant economic and environmental damages over the last century. The development of large-scale water abstraction and sediment retention infrastructures has facilitated phenomena such as coastal erosion, frequent eutrophication events and sea water anoxia. The present work investigates the alterations that have been observed over the last 50 years in the area of Thermaikos Gulf, Northern Gr...
Autori: Elias Dimitriou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27582

This work evaluates the effect of 5 mixtures of water treatment sludge, soil from the Cerrado region (Brazil) and a commercial substrate on the growth of 4 species of native plants (Copaifera langsdorffii, Astronium fraxinifolium, Peltophorum dubium and Tabebuia roseo-alba) from the Brazilian Cerrado. A randomized design was setup with four repetitions and WTS loading rates of 0, 204, 417, 638 and 869 g/kg. Plant sampling for analysis was performed at 30, 60, 90, 120 and 150 days after planting,...
Autori: Paulo Scalize
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27593

The paper presents a Multi-Criteria Decision Analysis (MCDA) methodology to analyze environmental performance indicators of an organization designed according to Eco-Management and Audit Scheme III - Regulation (EMAS III). The newly proposed indicators are intended to achieve Best Environmental Management Practice (BEMP) to facilitate and harmonize the way the environmental performance is reported and analyzed periodically within the Environmental Management System (EMS) of the organization. Dur...
Autori: Georgeta Madalina Arama
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27598

This work describes the application of Fenton’s like system (H2O2/Cu2+) assisted by microwaves to the removal of phenolic compounds from olive mill wastewater (OMWs). The effect of various operating conditions, namely copper ion concentrations (X1), hydrogen peroxide (X2), time of irradiation (X3) and microwave power (X4) were evaluated by factorial design of experiments. Results showed that X1, X2, X3 and X4 had significant effects on the response followed by the interactions X1X2, X1X3, ...
Autori: Hamida Iboukhoulef
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27602

The paper presents a case study of a significant intervention conducted on a major Italian airport for improving the structural and functional properties of the runway safety STRIP in order to fulfill specific national and international standards. The STRIP had to accomplish strict requirements in terms of the maximum longitudinal and transversal terrain slope and minimum values of bearing capacity; in particular, soil bearing capacity was identified as the main lack and thus the most urgent ac...
Autori: Maurizio Crispino
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27603

A new low-cost activated carbon was developed from kiwi peel for removing Pb(II) from aqueous solution. The adsorbent characteristics were determined by different analyses such as BET, FTIR and SEM. The adsorbent demonstrated remarkable characteristics such as high surface area (306.18 m2.g-1) and large total pore volume (0.4810 cm3.g-1). The effect of pH, contact time, initial concentration, shaking rate and adsorbent dosage on the Pb removal efficiency was investigated. It was found that the o...
Autori: Mostafa Rahimnejad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27605

The study of binary biosorption of Pb(II) and Cu(II) was performed by pine nuts shell. Results were compared with the single biosorption of Pb(II) and the single biosorption of the Cu(II). Experiments were performed in batch stirred and in a continuous system. The presence of lead caused a slightly decrease of the copper biosorption yield and can be related to the copper equilibrium uptake. This antagonistic action can be related to competition phenomena between metal ions in solution for active...
Autori: Gabriel Blázquez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27611

A 120 kilometers reach of the Prut River, Romania was surveyed and the concentrations of four trace metals (copper, cadmium, lead and zinc) were determined in water and sediments. These elements are the main pollutants expected in the region, as a steel-producing factory in Romania is located in the close neighborhood of an area under protection, the Lower Prut Floodplain Natural Park. Samples were collected in 2010 and 2011 from the water-sediment interface at six locations along the lower sect...
Autori: Marius Lucian Matache
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27612

This study was conducted on samples taken from the “Fagul Cetății – Iazul nr. 4” tailings pond in the Eastern Carpathians, Romania and is focused on exploring the way in which heavy metals from sulphide rich material are spatially distributed in relation to the geochemical conditions. For comparison, concentrated ore samples from the same area, genetically linked to the Tulgheș lithogroup were also analysed. The mineralogical and chemical composition of the sampl...
Autori: Sorin-Ionuț Balaban
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27626

FLUCTUATION OF RIVER NETWORK WATER ENVIRONMENTAL CARRYING CAPACITY IN A COMPLICATED RIVER-LAKE SYSTEM    • MINERALOGY AND GEOCHEMICAL DISTRIBUTION OF HEAVY METALS FOR THE FAGUL CETĂȚII TAILINGS, ROMANIA    • ACCUMULATION AND AVAILABILITY OF TRACE ELEMENTS FROM SOIL INTO ORIENTAL TOBACCO GROWN IN MACEDONIA    • OLFACTORY EFFECT ON LANDSCAPE PREFERENCE    • EFFECT OF MOLASSES ADDITION AS BIODEGRADABLE MATERIAL ON PHENOL REMO...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27628

The Brazilian instruments of environmental policy are mainly geared toward specific uses. They are not usually integrated into an analysis of all land uses. Economic Ecological Zoning is an instrument which can consider multiple land uses. However, in Brazil, this instrument is still not appropriately used to assist with the siting of planning projects. In this context, this paper aims to analyze the ‘usefulness’ of Economic Ecological Zoning for the siting of hydropower plants prior...
Autori: Carolina de Oliveira Jordăo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27633

Pyrometallurgical recycling of lead from spent batteries entails secondary waste fractions generated in the blast furnace as iron stone and lead slags. For further purification of both fractions, hydrometallurgic processing is proposed. This paper focuses on purification of iron stone, in view of recovering metals (mainly lead) and of producing decontaminated iron stone fit for further recycling. The results demonstrate that iron stone is mainly composed of iron and lead; copper, zinc and antimo...
Autori: Bart Van der Bruggen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27642

This paper reviews the recent developments and implementations for greenhouses facilities, focusing on recent progress regarding greenhouse environment monitoring and control with many available application examples. State of the art and current trends concerning the main parts of the greenhouse environment automation are discussed: i) greenhouse climate models, ii) wireless sensor networks, iii) remote monitoring/command and supervisory control and data acquisition (SCADA) systems, iv) image pr...
Autori: Eugen Horatiu Gurban
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27644

Copper pollution is common across the world and has caused serious public health problems recently. Among the conventional methods, adsorption has proved effective, economic, versatile and simple for the removal of aqueous Cu(II) contaminants. Deposits of natural Kaolin are abundant around the world, and are regarded as valueless due to its limited usage in industry. In this study, the adsorption behavior of natural Kaolin towards Cu(II) was evaluated. According to the results, the isothermal ad...
Autori: Qiang Tang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27651

The separate and simultaneous photocatalytic reduction of poisonous Cr(VI) and Ni(II) ions were examined with trace amounts of commercial titania nanoparticles (up to 50 mg/L). A direct irradiation photo-reactor, equipped with ultrasonic source was employed. The effects of four influencing parameters, catalyst dosage, pH, temperature and metal ions concentration ratio were investigated. The simultaneous operations, in the ternary Cr(VI)/Ni(II)/TiO2 system, show a synergism in reduction effici...
Autori: Javad Saien
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27662

The objective of the present study was to (i) compare different treatment options for greywater (GW) reuse, (ii) assess the potential of treated GW for reuse, and (iii) select the optimal treatment option by using Analytic Hierarchy Process (AHP). Raw GW was settled for 2 h. Five different treatment options were investigated simultaneously in parallel using the same influent (settled GW). The treatment options were (1) sand filtration, (2) sand/brick bat filtration, (3) alum coagulation/floc...
Autori: Dilip Machindra Ghaitidak
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27669

Timber harvesting activity represents one of the major sources of the forest terrain erosion. Several studies have been performed in order to quantify the rate of soils erosion by considering the practices used in forestry, and some of them concluded that the associated erosion can be regarded as the price of having roads. The current study focused on the used practices in developing skidding trails and the associated erosion phenomena. There was found that some of the used practices (the lon...
Autori: Cristian Ionuţ Duţă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27673

Leakage through flaws in geofilm was examined with laboratory tests by flexible wall permeameter. Samples cracks were cut open by the sharp blade, with the results that the widths of the flaws were the same while the lengths were different. During the research, a series of laboratory permeameter tests have been performed to determine the influence of the various factors on the leakage rate of water through the flaw at the center of geofilm. The impact of various parameters examined included t...
Autori: Guangwei Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27674

Although considered a rare disease, endemic to low-income regions and unsanitary environments, leptospirosis is still encountered in some parts of Romania, in both rural and urban environments. Its specific pathways of transmission caused it to be a threat to people working with animals, pest control, farmers or those whose jobs place them in the presence of waters, sewers or in flooded areas. This paper investigates the occurrence and effects of leptospirosis by analyzing 17 cases of infec...
Autori: Doina Carmen Manciuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27678

The aim of this study is the treatment of liquid effluents from a petroleum industry (NAFTAL /Algeria) by an electrochemical treatment process (electrocoagulation). The electrocoagulation has proved to be useful for the treatment of wastewater, but in order to enhance its ecological characteristic we found it would be essential to carry out our experiments with ecological energy derived from a photovoltaic solar module, which would contribute to sustainability objectives. The electrocoagulation ...
Autori: Kahina Ighilahriz
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27679

Organoarsenic compounds are used extensively as swine feed-additives to promote animal growth and control diseases, e.g. roxarsone (4-hydroxy-3-nitrobenzenearsonic acid) and arsanilic acid (4-aminophenylarsonic acid) are usually overused in swine industry in China. As a cost-effective technology for animal manure treatment and reuse, composting is widely used for swine manure treatment. Therefore, the purpose of this study was to investigate changes of arsenic species and fractions during a full...
Autori: Rui Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27683

One of the main challenges for the development of biomass algal system production is the high operational and capital costs for these technologies. A great opportunity to overcome these challenges may however exist in the integration of wastewater treatment with algal biomass production. The algae are used for treatment of industrial wastewater, for purification of effluent originating from livestock production, while the studies concerning the use of algae species for the treatment of aquacultu...
Autori: Katya Velichkova
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27684

Real estate is an industry sector with high potential to increase energy efficiency. However, many of the existing green building investment opportunities (GBIO) are not utilized because economic valuation tools are complex and oftentimes difficult to understand. For this reason, we develop a formal, but comprehensible bottom-up model to determine the optimal investment amount from an economic perspective, placing particular emphasis on the descriptive valuation of risk, and point out the applic...
Autori: Hans Ulrich Buhl
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27687

Adsorption, desorption, and kinetics behavior of Gd(III) ion on chelating resin were investigated in this paper. Batch adsorption studies were carried out with different pH, contact time, and temperature. The adsorption of Gd(III) follows the Langmuir model better than the Freundlich model. The apparent activation energy Ea and adsorption rate constant are k308 4.16 kJ/mol and 6.01×10-5 s-1, respectively. Thermodynamic parameters such as ΔH, ΔS and ΔG indicated that Gd(II...
Autori: Leilei Pi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27688

Sulfide bearing mine tailings generated through mining and processing of mineral ores is one of the serious problems around the world due to their potential environmental hazards. Current study focuses on vertical distribution and potential mobility of metals in New and Old tailings of a Lead and Zinc mining area of India. Mine tailing profiles sampled from New (0-500mm) and Old tailing (0-400mm) dams were chemically (pH, EC, Carbonate content, Cd, Pb, Zn and Mn levels) and mineralogically (usin...
Autori: Malik Anju
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27690

Novel systems based on modified azo-polysiloxanes and gelatin with potential biological applications were prepared and characterized. Simultaneous rheological and UV irradiation studies allowed evidencing structural modification inside the gelatin matrix. For all analyzed samples a shift in the temperature corresponding to the physical network destructuration, from 30˚C (corresponding to gelatin) to 40˚C (for the composite) was noticed. The experimental results proved the existence of ...
Autori: Elena- Luiza Epure
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27699

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27782

This paper aims to compare the adsorption performance of activated carbon and pine bark for iron and manganese removal from contaminated groundwater. Moreover, their environmental compatibility was checked for their possible use as reactive media in a permeable reactive barrier for in situ remediation. Batch tests were carried out with different iron and manganese concentrations and different particle-size distributions, in order to evaluate the effectiveness of the activated carbon and pine bar...
Autori: Silvia Sbaffoni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27779

Influence of soil pH on the mechanical characteristics of glass reinforced plastic (GRP) pipes type was often investigated in different situations encountered in the field. GRP degradation is directly proportional to the exposure to soil with non-neutral reaction. The theoretical and experimental results lead during time to design standards, which allow the application of GRP pipes in water and soil, so as minimum interferences with the materials used in the manufacture of pipes would appear. Sa...
Autori: Ana Diana Ancas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27768

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27729

• INFLUENCING FACTORS OF THE ACCEPTABLE AMOUNT OF COMPENSATION OF FARMERS FOR CONTROLLING FERTILIZER-INDUCED WATER POLLUTION    • DETERMINATION OF THE RARE EARTH METALS IN THE RED MUD FOR POSSIBLE UTILIZATION    • Fe(II) AND Mn(II) REMOVAL FROM CONTAMINATED GROUNDWATER BY ADSORPTION: A COMPARISON OF ACTIVATED CARBON AND PINE BARK    • RESPONSE OF UPLAND COTTON GENOTYPES TO SALINITY AT EARLY GROWTH STAGES    • KINETICS AND ISOTH...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27730

Evaluation of spatial/ temporal water quality data at reservoirs has shown differences after the dam construction as well as long-term changes of water chemistry. One of the most recent reservoirs created in Europe is Ilarion Reservoir in Western Macedonia – Greece (2012). In this work, the water physicochemical characteristics of this young reservoir and the spatiotemporal water quality variation of the feeding river and its main tributaries have been studied, and statistically interprete...
Autori: Elisavet Amanatidou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27737

The objective of this study was to evaluate the effect of different doses of meat and bone meal (MBM) applied as organic fertilizer on the quality of groundwater in arable fields. The effect of meat and bone meal fertilizer applied at rates of 1.0, 1.5, 2.0 and 2.5 t ha-1 was compared with no fertilization, mineral fertilization, and manure fertilization (10 t ha-1). Groundwater samples for chemical analyses were collected every month during the growing season using piezometers installed in the ...
Autori: Arkadiusz Stępień
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27742