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

AbstractEcological economics is an emerging field that offers significant room for creativity and innovation at the conceptual level on how to operationalize sustainability. It integrates economics with ecology and many elements from both the natural and social sciences to provide an integrated perspective on environment-economy interactions. A major policy dilemma that ecological economics addresses is how policy-makers can influence markets, so that they receive the 'right' signals from the na...
Autori: Kes McCormick
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25106

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

The great variety of available Solid Waste Management System (SWMS) models, along with a plethora of continuously developing technological advancements in the design and operation of the treatment facilities and collection and transport schemes, the continous updating of national (and/or European) regulations on waste management and the increased computer literacy and availability, renders the selection of a SWMS model a complex endeavor. From the view point of a municipality, the following ques...
Autori: Demetrios Panagiotakopoulos, Konstantinia Tsilemou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25115

AbstractDuring the modern history the ability of plant roots to consolidate and strengthen the soil was exploited twice in France: once in1867 by Joseph Monier who created the reinforced concrete, and then in 1962 by Henry Vidal who created structured soils.The paper presents the some results obtained on the ecological protection of floodplain in major riverbeds. The aerodynamic modeling represents an efficient, economic and easy way to work with. The main condition of successful experiments is ...
Autori: Ana Virsta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25136

AbstractE-waste is a new term coined in the market of hazardous substances. It has taken a new bourgeoning route since the boom of Information Technology (IT). The problems regarding the transportation, handling and dispose have to be tackled at the earliest as it might cause detrimental effects on environment. Presently in India there is no distinct and lucid regulation(s) regarding e-waste management. There should one stop solution! In the present paper, some of the Technical and E-Management ...
Autori: Santosh M. Avvannavar, Surathkal Shrihari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25142

AbstractThe paper analyzes some aspects of waste management in Romania and, in particular, in Iasi County, in view of the European perspective. Urban and rural waste management is considered and collection, transport, processing, recycling or disposal of waste materials is discussed relative to the National Waste Management Strategy and the National Plan for Waste Management, as well as European and national legislative framework.It was showed that land disposal will continue to be a disposal op...
Autori: Ana-Maria Schiopu, Ion Apostol, Maria Gavrilescu, Monica Hodoreanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25203

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 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

AbstractHeavy metals can be transported by rivers which flow through areas with industrial pollution, both as metal in solution and metal adsorbed to suspended solids. They can settle in lakes and accumulate in the sediment, exhibiting significant effects on wildlife and humans if they enter into the food chain.In this work, heavy metals transport and sedimentation is simulated based on an analytical model proposed in literature, considering the material balance and complementary equations, unde...
Autori: Camelia Beţianu, Florina Ungureanu, Loredana Branza, Lucian Vasile Pavel, Maria Gavrilescu, Simona Pintilie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25197

Include urmatoarele articole:� Cost sensitivity analysis by Monte Carlo simulation� Mathematical modeling of gas drying by adsorption� Methyl isobutyl ketone combustion over Pt/Al2O3 catalyst� Distribution of oxygen transfer rate in stirred bioreactors with simulated broths� Unsteady heat transfer inside an elliptic cylinder� Triphasic external-loop airlift reactors. Hydrodynamic and dispersion studies� Sustainable combined utilization of renewable forest resources and coal in Roma...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25209

AbstractAluminum and ferric salts are widely used as coagulants in water and wastewater treatment. They are effective in removing a broad range of impurities from water, including colloidal particles and dissolved organic substances. As well as traditional additives, such as aluminum sulphate ("alum") and ferric chloride, other products containing prehydrolized metal ions such as polyaluminum chlorides are now commonly used. The aim of this study was to develop a model for coagulation/flocculati...
Autori: Avid Banihashemi, Manouchehr Nikazar, , Reza Maknoon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25230

AbstractWith a greater emphasis on the increasing number of diesel vehicles provided with pollution control systems complying to regulatory standards these days than ever before, it is also necessary to look into the emission characteristics of the diesel vehicles with respect to vehicle-related parameters with a view to ascertain as to how the tail pipe emission from the diesel vehicles could be kept under control by adopting suitable strategies. Considering the constraints of data collection a...
Autori: Manoranjan Parida, Mishra Rajeev Kumar, Pandey Govind
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25248

AbstractThe critical analysis of the transfer processes intensification techniques is carried out by identification of the methods that can be applied, regardless of the process nature. The main priority is the development of a consistent methodology that will represent the basis of specific practical methods development by establishing a theoretical frame for studying the heat transfer processes. The main purpose is to reduce the stationary time of the charge in the installation, accomplishing ...
Autori: Adrian Dima, Alina Adriana Minea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25253

AbstractTheoretical and experimental studies of gas drying processes by adsorption in fixed bed of grains are presented in this paper. Based on an extensive literature study, some of the most representative mathematical models describing gas adsorption in fixed bed and consequently gas drying processes by adsorption in fixed bed are also presented. Using a mathematical model from those mentioned describing adsorption under isotherm regime, the temperature and gas flow velocity effects over the d...
Autori: Marius Sebastian Secula, Stelian Petrescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25272

AbstractIn India, transportation sector is growing fast and the number of vehicles on Indian roads is increasing at a rate more than 7 percent a year. During the period of 50 years from 1951 to 2001, the number of vehicles has increased from 0.3 million to 43 million i.e. an increase of almost 143 times. This has led to overcrowded roads and noise pollution. The transportation sector is one of the major contributors to noise in urban areas, accounting to as much as 55 percent of total noise on t...
Autori: Arvind Kumar Shukla, Jyoti Bhushan Srivastava, Manoranjan Parida, Sukhvir Singh Jain
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25279

? 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

AbstractThe use of composite fuels using pitcoal and sawdust represents a high perspective. The paper deals with the experimental results focusing on the combustion efficiency of composite fuel briquettes and on the polluting emissions level. A special care is given to the determination of boiler efficiency and to the establishment of exploiting economic conditions, like the supply, cleaning etc. The research of the combustion of pitcoal-wood biomass briquettes is conducted on a 55 kW boiler.A n...
Autori: Gabriel Negreanu, Gheorghe Lăzăroiu, Ion Oprea, Ionel Pisa, Lucian Mihăescu, Radu Indries, Tudor Prisecaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25301

AbstractConsidering that the fate and behaviour of contaminants within the environment is an extremely complex issue, this paper analyzes the development of predictive models which can contribute to the understanding of the release of a contaminant.  Different types of models concerning the atmospheric transport of POPs are examined, taking into consideration that these models can be used to simulate the behaviour of contaminants. A successful simulation, in which there is satisfactory agre...
Autori: Camelia Smaranda, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25327

AbstractIn the present work, composite membranes were developed for separation of hydrogen from its mixtures with other gases. The composite membranes were characterized by single gas permeation and scanning electron microscopy. Gas transport properties have been determined for four gases (H2, CH4, N2, CO2). The influence of cross-linking on transport was measured. H2/CH4 selectivity values up to 115 were obtained. The resulting membranes have a selectivity of H2/CH4 close to intrinsic selectivi...
Autori: Carmen Nistor, Marcel Popa, Sergey Shishatskiy, Suzana Pereira Nunes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25339

AbstractA present challenge for research is to determine how to use the combination of oil, gas and coal most efficiently with the minimum environmental damage. In this paper the authors have compared technologies to produce the electricity using natural gas and coal. The objective of this paper consists in evaluation of the life cycle assessment of the natural gas and coal in order to compare their greenhouse gases (GHG) emissions. In this way, three systems with and without CCS were examined: ...
Autori: Adrian-Alexandru Badea, Cristian Dincă, Gheorghe Lăzăroiu, Tiberiu Apostol
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25355

AbstractIn the present article, some models conceptually and mathematically applicable to the LNAPL transitory transport process through ground water were discussed. Subsequently, by using a personal computer program of pre-processing basis data combined with MOVER 2.0, the levigation process of oily dross/scale stored in the waste dump, which produces steel rolled tubes, was numerically simulated, in adequate scenarios. The results of the simulations will be useful at the evaluation of the impa...
Autori: Elena Doinita Carlig, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25361

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

Abstract The current paper describes the concept and the mathematical models axed upon flow transport and transport of pollutants in the aquifer inside a metallurgical waste hall. Then, using a complex of basic data related to a representative case study - several information being achieved by systematic measurements, for long period, throughout ten drillings - and the pack of FEFLOW 5.1 programmes, the dispersion of an uppermost pollutant (the anion SO4) has been numerically simulated, for t...
Autori: Elena Doinita Carlig, Esmeralda Chiorescu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25416

Abstract Up to the present days, the bioprocesses were designed and operated with the aim at achieving some economic, environmental, and social criteria. Sustainability based optimization has to be the next step towards the improvement of the economical, environmental and social parameters of bioprocesses. In this work, sustainability will be treated as an optimization task where the objective function(s) is/are either a performance index or a set of performance indices, subject to economic, ...
Autori: Alexandru Woinaroschy, Dana Irina Ofiteru, Vasile Lavric
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25418

Abstract Elaboration of the inventory of the pollutants emissions in atmosphere constitutes the basis for elaboration of the strategies and reglementations, assessment of the trends in evolutions of emissions, modeling of the pollutants dispersions, analysis of new sources, establishment of emission taxes, compliance with legislation, as well as review of existing reglementation and standards regarding the air quality. The current paper describes both the evolution of the emissions of the he...
Autori: Mihaela Budianu, Mihai Nicu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25422

Abstract The paper highlights the combustion possibilities of crude vegetable oils as fuels for stationary application. This is an opportunity of a new utilization in Romania of tee vegetable oils, for electricity production and heating systems, instead of the current situation of using in transportation as biodiesel fuel. The research focuses on crude vegetable oils obtained from some indigenous cultures: rape, soy, sunflower. An overview of the agricultural potential of oleaginous plants is...
Autori: Ion Oprea, Ionel Pisa, , Tudor Prisecaru, Gheorghe Lazaroiu, Gabriel Negreanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25424

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 Literature data show that in general, plastics produced through the mechanical recycling route involve less carbon dioxide emission than when produced from crude oil. A review of readily available data shows that road transport of untreated waste plastics account for a significant portion of the carbon dioxide emission generated during recycling. Therefore, much carbon dioxide emission can be saved by optimizing the logistics in the recycling of plastics. On the example of polyolefi...
Autori: Peter C. Rem, Stig Olsen, Jan-Henk Welink, Norbert Fraunholcz
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25442

Abstract The methods generally used for developing these studies are the assessment and investigation. Assessment – all methods used for measuring, reckoning, modeling, forecasting or estimating the presence of a pollutant in the environment. Investigation - the process of identifying the presence of pollutants in the environment, the spatial dispersion of these pollutants, the level of their concentration, as well as the analysis of the environment’s structure. The steps that were follow...
Autori: , Gheorghe - Viorel Cosara, Calin Baciu, Ileana - Codruta Stezar, Augusta - Diana Crisan, Camelia Costan, Cristina Modoi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25451

Abstract Biofuels represent a possibility for renewable resources conversion, storage and distribution. Today, diesel oil is commercialized only blended with biodiesel, and according to the 30/2003 Directive of the EU, 5.75% of the total fuels used in the transportation sector must be represented by biofuels by the end of 2010. Biodiesel can be produced from vegetable oils, animal fats and used oils. Viscosity is one of the most important characteristics of liquid fuels. The viscosity of liqu...
Autori: Irina Nita, Dan Mandalopol
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25499

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 To become "flexible" is the equivalent of becoming successfully for almost any firm - the activities based on old and traditional product "recipes" are, obviously, excluded. But, in the framework of a global economy crisis, the statistics seems to prove that flexibility is no longer enough in order to avoid troubles. At the same time, another statistics prove that almost 80% of the products are failing at their first release on market. The paper presents a genuine marketing aggregate...
Autori: Gabriel-Petru Luca, Ion Verzea, Irina Cozminca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25511

Abstract This paperwork is trying to achieve some of theoretical and practical objectives concerning the "agility" concept: to make the differences operational, and to ensure the present surviving and the future development of economical activities in a, more and more, turbulent business environment. Also, the paperwork comes to display a genuine aggregate indicator "Advertising Efficiency Ratio", special developed to help the market players to face - throughout their advertising process - th...
Autori: Gabriel-Petru Luca, Ion Verzea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25513

Abstract The individual physical, chemical, and biological interactions that determine the exposure of plants and animals to chemicals associated with soils are of great importance in the assessment of contaminants bioavailability. Understanding of bioavailability processes is at last needed to improve the scientific basis of risk assessment and is the purpose of the present research. Since bioavailability processes are embedded within existing human health and ecological risk frameworks, so...
Autori: Brindusa Mihaela Robu, Camelia Smaranda, Florentina Anca Căliman, Laura Carmen Apostol, Lucian Vasile Pavel, Maria Gavrilescu, Raluca Maria Hlihor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25516

Abstract The paper describes the complex research developed within a national research project. The proposed studies and researches are according to the thematic frame of the program cooperation-environment of FP7, whose fundamental objective is related to the natural and anthropogenic environmental problems and resources. Under this context, the project proposes a coherent, conceptual framework for integrated environmental risk assessment and management, generated by the presence of persiste...
Autori: Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25548

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 White mustard (Sinapis white) is an annual plant of the Cruciferae family originating from the Mediterranean region and is cultivated in Europe and Asia, mainly for its seeds, but also for animal feed or crop rotation. White mustard seed is also an important source of vegetable oil that can be used as fuel. The chemical composition of mustard seed (Sinapis alba) includes glucosinolate (sinalbozida, sinapina free), essential oils, fatty oils (glycerides of oleic acid, linoleic, linole...
Autori: Camelia Ciubota-Rosie, Rodica Diaconescu, Irina Volf, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25561

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

Abstract University campuses can be seen as â€?small cities’ due to their high population (students, professors, employees) and corresponding high traffic flow, which may have a significant impact on both environment and people health. The objective of this work was to analyze particulate matter seasonal trends in the university area of Cosenza (University of Calabria). The relationship between sources emission, meteorological parameters and particle properties was defined. Sampling was co...
Autori: Monica Filice, Pierantonio De Luca, Giuseppe Piero Guido
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25564

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

Abstract 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 The aim of this study was to investigate the Congo Red (CR) sorption behavior onto six soils from Ia?…?¸i area, with different characteristics. The rate of sorption of Congo red dye molecules from aqueous solution by soil was studied in batch conditions. The rate of sorption was very rapid in the first 5-10 minutes and reached a maximum in 20 minutes. Kinetic modeling analysis of the pseudo-first-order, pseudo-second-order, intraparticle diffusion and Elovich equations reveals that t...
Autori: Camelia Smaranda, Dumitru Bulgariu, Maria Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25594

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 Decision trees and rule-based systems including variants based on propositional and fuzzy logic have been the method of choice for knowledge representation in many applications of environmental decision support systems. Reasons are the ease of use, the capability of representing uncertainty, and the fast computation of results at runtime when using decision trees, rule-based systems, or other similar means for knowledge representation. Unfortunately there are drawbacks related with t...
Autori: Franz Wotawa, Ignasi Rodriguez-Roda, Joaquim Comas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25614

Abstract This paper offers a hybrid approach, for the effective estimation of the maximum water supply and the special water flow in the watersheds of Thasos Island. This modeling effort was carried out by employing both artificial neural networks (ANNs) and kernel algorithms. Moreover support vector machines (SVMs) were used for the optimization of the ANNs. Support vector machines were applied to determine the loss of the developed ANN and to enhance its ability to generalize. As a matter o...
Autori: Lazaros S. Iliadis, Stavros Tachos, Stefanos I. Spartalis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25615

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 The Jajrood River watershed is one of the main drinking water resources of Tehran, the capital city of Iran. In addition it provides many recreational usages. However, a variety of microbial pollutions is commonly perceived in the Jajrood River, among them a high concentration of coliform group bacteria that has caused strong concerns. In this article, different aspects of microbial pollution as well as the main microbial pollution sources in the region are discussed. Coliform group ...
Autori: Mahdi Jamshidi, Mahdi Maghrebi, Masoud Tajrishy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25627

Abstract Mathematical modeling of the ultrafiltration (UF) process is motivated by the complexity of retention phenomena that occur during the UF in conjunction with the complexity of wastewater matrices submitted to ultrafiltration, as well as by the need to predict the process behavior in extreme conditions, such as high pollution loads for UF-membrane cleaning cycles optimization or for automated control of the process. Thus, series of laboratory-scale ultrafiltration experiments were perf...
Autori: , George Barjoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25630

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 Mathematical models have become a valuable tool to study the anaerobic digestion process, to guide plant design and optimize operation strategies. Models require accurate and significant parameter values for being useful. Although the identification problem is an issue of concern, often is neglected. The described method for model calibration consists on the performance of simultaneous batch experiments (SBE), which requires simple and usually available equipment, and is based on the...
Autori: Belen Fernandez, Jordi Palatsi, Josep Illa, M. Angels Colomer, Xavier Flotats
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25636

? 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...
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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...
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ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25661

? POST-DARCY FILTRATION THROUGH RIGID PERMEABLE MEDIA ? BIOSORPTION OF Cr(VI) FROM AQUEOUS SOLUTIONS ONTO Hydrilla verticillata WEED: EQUILIBRIUM, KINETICS AND THERMODYNAMIC STUDIES ? IMPACT OF BUILDING A TIDAL GATE ON THE YONGJIANG RIVER IN CHINA ? MONITORING OF THE HYDROTECHNICAL TORRENT CONTROL STRUCTURES: A STATISTICAL APPROACH ? RESEARCH ON SOIL PROPERTIES CONSERVATION DURING THE PREPARATION OF GERMINATION BEDS IN GREENHOUSES ? MANAGEMENT OF THE POTATO CROPS FOR MIN...
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ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25664

? 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...
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ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25666

? EFFECT OF ELECTRICAL CURRENT ON H2/ H2O2 GENERATION IN NON-THERMAL PLASMA GLIDING ARC REACTORS ? ADVANCES IN THE VISUALIZATION OF THREE-DIMENSIONAL SEISMIC VOLUME DATA ? CHARACTERIZATION OF ELECTROMAGNETIC RADIATION FROM A PATIENT MONITOR ? METHODS OF ELECTROMAGNETIC INTERFERENCE REDUCTION IN ELECTROCARDIOGRAPHIC SIGNAL ACQUISITION ? SPHERICAL MODEL OF THE HUMAN HEAD EXPOSED TO ELECTROMAGNETIC FIELD ? BRAIN ELECTRICAL ACTIVITY RECORDING IN SOME ELECTROMAGNETIC ENVIRONM...
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ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25667

? 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

Carbon issue is becoming more important all over the world. Plate glass is a typical kind of building materials and the life cycle carbon emission of plate glass is a big contributor, resulting from the energy consumption in the stages of its life cycle which includes four aspects: raw materials acquirement, materials transportation, production and embodied consumption of energy carriers. Based on the relevant data calculation from China’s condition, the life cycle carbon emission of plate gla...
Autori: Meng Liu, Wenlong Li, Qunying Cheng, Yueer He, Xinyun Caohttp://www.ecozone.ro/reviste.php?RID=25672

The variation of acidity and the wet deposition fluxes of rainwater in Nanning City were analyzed based on the local acid rain monitoring data provided by environmental protection authorities from 1991 to 2004. The result shows that the annual value of pH is less than 5.6 in the past 14 years and the wet deposition has been getting more and more severe in Nanning. The ratio of SO42-/NO3 - has decreased. NO3 - has played an increasingly large role in acidity, though SO4 2- remains a key player. T...
Autori: Feng-qin Zheng, Guo-liang Liao, Hai-hong Huang, Yu-chun Mo, Shen-xian Wuhttp://www.ecozone.ro/reviste.php?RID=25678

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

The permanent magnet EDS train has been considered to be one of the most promising urban transportation vehicles due to its particular characteristics: simple configurations, low energy consumption, low noise, and suitable for high speed conditions. In order to study the characteristics of permanent magnet Electrodynamic Suspension (EDS) system, an experimental mechanism was established in this paper. The optimization of Halbach magnet array has been carried out and appropriate track for the EDS...
Autori: Zhiqiang Long, Guang He, Ning He, Zhizhou Zhanghttp://www.ecozone.ro/reviste.php?RID=25713

Abstract:The demand for new and high performance products in the automotive industry is increasing exponentially and this trend imposesinnovative concepts for cars. The future solutions for the automotive industry may find their answer in the fabricationtechnologies and also in alternative propulsion and energy production.The car design field cannot ignore the global economic crisis, imposing new approaches in terms of materials and cost effectivetechnologies and by the means of environmental pr...
Autori: Mihai Comşiţ
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25733

Abstract:The national legal framework harmonization, including in areas concerning environmental protection, with the Europeanstandards in the field, is a goal of paramount importance with regard to Romania's accession to the EU structures. From thisperspective, all the organizations, agencies and individuals operating in this field must be acquainted with the European Union'sprograms of environmental action.In this context, the paper aims to provide an overview of the relevant trends and develo...
Autori: Constanţa Enea, Constantin Enea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25742

Abstract:The paper presents a method to improve the efficiency of a photovoltaic (PV) string by employing a mono-axis trackingmechanism. The tracking system was optimized so that it has minimum energy consumption during tracking. The PV stringsimultaneously changes the daily position using a linear actuator which transmits the motion to all modules by a rack-pinion gearmechanism. The system is designed in virtual prototyping concept with the following software solutions: for the solid modeling -...
Autori: Cătălin Alexandru, Nicoleta-Irina Tatu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25766

Abstract:The work presents the results in investigating the thermal behaviour of passive solar elements, for expanding the existing analysisand prediction methodologies. The interest focuses on solar control through natural shading with deciduous plants. This providesa natural path for incorporating all advantages the passive behaviour, available throughout the year. The simulation of thedynamic energy performance of building elements is developed, starting with a physical modelling of the vario...
Autori: Angelos D. Tzachanis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25768

Abstract:Lightweight materials are more viable for use in invariably hot or cold climates than in temperate climates. However, it is possibleto use lightweight construction systems and specifically membranes even in housing buildings in temperate climate areas, if theirproperties are well explored, allowing better environmental performance and cost effectiveness than conventional solutions. In theouter skin and in dividing elements, architectural membranes can be used as thermal regulators, for ...
Autori: António Pedro Reis, Joăo Pedro Couto, Paulo Mendonça
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25781

Abstract:The present paper is concerned with the determination of the appropriate subsidy level for environmental friendly technologyvehicles. For this purpose, the economic calculation of the corresponding environmental benefit is necessary, which is realizedthrough the calculation of the negative environmental externality that could be avoided, if the examined subsidies have beenestablished. For the calculation of the latter, the EcoSenseLE tool has been applied here, using life-cycle airborne...
Autori: Dimitrios A. Georgakellos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25782

Abstract: The paper focuses on eutrophication due to nutrients load into a reservoir. A thermally stratified reservoir water body is divided in vertical layers and horizontal zones according to water temperature and depth. The layers show different compositions of limiting nutrient because of the density of flow and due to inhabitants on the bottom of the reservoir exposed to sunlight. The bioassay for algal growth potential test (AGPT) is the most direct and effective way to determine a limitin...
Autori: Dimitri Solomatine, Ioana Popescu, Jae-Ki Shin, Nahm-Chung Jung, Peter Kelderman, Roland K. Price
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25798

Abstract:The paper presents the results of a study carried out using the Artificial Neural Network (ANN) for prediction the coagulation/flocculation process of suspended solids in water treatment plant (WTP). In this research 5 kinds of Poly Aluminum Chloride (PAC) as coagulant were used to examine the impact of coagulant kinds, PAC dosage and influent turbidity for removal of suspended solids. Determination of optimal coagulant doses is vital, as insufficient dosing will result in undesirable t...
Autori: Gagik Badalians Gholikandi, Mohammad Delnavaz, Reza Riahi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25806

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

Abstract:Drinking water produced in water treatment plants almost invariably fulfils the water quality requirements set, for example by the European Union Drinking Water Directive 98/83/EC (EU DWD) and national legislation. However, EU DWD requires that water quality should also meet the requirements at the consumers’ tap. The quality of drinking water changes due to the transportation through the distribution networks and the time spent in the reservoirs until the last point of consumption. W...
Autori: , Ioana Gabriela Dascalescu, Maria Cohl
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25814

The aim of this work is the study of activated sludge floc samples stained with different dyes and imaged by Confocal Laser Scanning Microscopy (CLSM). Activated sludge flocs were stained for lipids, sugars and esterase enzyme producing bacteria. Images were acquired for different samples to analyze the structural characteristics of the bioaggregates. The analysis of the CLSM images allowed for the localization and estimation of the quantity of different build-up materials. The 3-D reconstructio...
Autori: Bela Abraham, Botond Raduly, Dan Niculae Robescu, Szabolcs Lanyi, Szabolcs Szilveszter, Szilard Bucs
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25937

This paper presents a mathematical model for the prediction of pollutant transport in rivers. The model has been developed and calibrated using the Matlab software and relying on field data from Romanian Someş River (collected in case of accidental cyanide release). Field data has been used to estimate model parameters (e.g. dispersion coefficient, velocity) as variable in time and space in order account for river features non-uniformity in time and also in space. These initial parameter va...
Autori: Elisabeta-Cristina Ani, Vasile Mircea Cristea, Paul Serban Agachi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25848

Biomass is a very interesting natural source to obtain renewable energy as well as chemical products based on a renewable feedstock. Fuel produced from renewable resources is widely regarded as an option to substitute traditional fossil fuels and thus to answer to the adjunct climate debate. For the production of chemical substances from renewable substrates many process options are in investigation worldwide at the moment. However the ecological benefits of these technological options have to b...
Autori: Anton Friedl
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25856

This paper presents original studies about the influence of mineral and/or organic fertilization on the minerals contents (P, Na, K, Ca, Mg, Fe, Mn, Zn, Cu, Ni and Pb) in leguminous plants from permanent grassland situated in a hill area of Banat County. Determination of minerals in grassland is very important both for the nutritional or toxic effects of these elements and their compounds, in the plants, animals and environment. Phosphorous was analyzed colorimetric and all the others metals hav...
Autori: Alexandru Moisuc, Iosif Gergen, Monica Harmanescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25858

This paper is part of LCA studies performed in the frame of FP7 project �Recovered Paper Sorting by Innovative Technologies - SORT IT�. It analysis the results obtained by Life Cycle Impact Assessment (LCIA) of the reference case for recycled packaging paper manufacturing (current sorting technology), which will constitute a comparison base for new sorting technology developed in SORT IT project. The main stages considered in the life cycle were: recovered paper (RP) transport from collectio...
Autori: Alina Iosip, Antonio Dobon, Elena Bobu, Mercedes Hortal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25860

In this paper, Cadmium and Zinc removal from soil by phytoremediation was investigated. The experiments were carried out with two types of plants, Brassica napus and Triticales sp. Response surface modeling and optimization of Cd and Zn removal rate was performed for each type of plant under controlled conditions, i.e. as a function of Cd concentration, Zn concentration and pH. Although the maximum heavy metal uptake (i.e. 2.4 % Cd removal rate and 1.80 % Zn removal rate, respectively) was obtai...
Autori: Corneliu Pohontu, Gabriela Soreanu, Igor Creţescu, Matei Macoveanu, Paula Caraiman Cojocaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25881

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

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

“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

AbstractWastewater streams and particularly industrial effluents tend to increase in volumes and to get more complex in terms ofpollution. Nevertheless, nowadays the focus is directed towards recycling or reuse of treated wastewater so as to close the wateruse loop. Advanced wastewater treatment allows these possible applications by achieving good quality effluent to suit the newpurposes, but the implementation of this treatment stage is a difficult task. This study gives an example on how to ap...
Autori: , Daniela Cailean, Florina Ungureanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25971

AbstractNumerous governments have adopted innovative policy instruments to deal with important environmental policy challenges.Various forms of negotiated instruments may offer the potential to improve on environmental performance beyond whatregulation alone can accomplish. Dutch covenants, which represent negotiated agreements with sectors of industry as targets ofbehavioral change in terms of mitigation of pollution, waste minimization and sustainable products and processes, provide auseful sa...
Autori: , Kris Lulofs, Laura Franco, Theo de Bruijn, Yanyan Xue
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25972

AbstractThe transport of gases and solvents in polymeric membranes is an important phenomenon with many technical applications, suchas the mixture separation using polymeric membranes, the polymeric membrane preparation, the polymer devolatilization and theselection of appropriate polymeric membranes for a certain process. In most membrane separation operations and manufacturing,equilibrium and diffusion data are required.Useful information on equilibrium and diffusion can be obtained from the s...
Autori: Ciprian Constantin Negoescu, Eugenia Teodora Iacob Tudose, Ioan Mămăligă, Nicoleta Bunduc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25975

AbstractThe WINGEMS software is a useful tool in analyzing, mathematical modeling and synthesis of chemical processes. Thissoftware can be applied to simulate various stages of the papermaking process. An example of simulation and modeling ofprocess is presented for paper stock preparation line for papermaking. On the basis of data obtained during process analysis, it ispossible to elaborate a strategy for control and monitoring of technological parameters and, while the efficiency of the proces...
Autori: Corina Măluțan, Theodor Măluţan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25981

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 electrostatic discharge (ESD) event is a severe source of interference that can produce damages in any electronic system. Afull-body of an ESD generator is modeled using the Cadence IC 5.3 package software in order to reproduce the referencedischarge current assured by the standard specifications. The factors that introduce electromagnetic radiations into the systemshave also been investigated. Several tests based on proper matches between the parameters of the antenna were computed ...
Autori: Alexandru Salceanu, Ana-Maria Nicuta, Oana Beniuga, Paul Bicleanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25993

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

• STUDIES ON HEAT RECOVERY FROM CELLULOSIC TEXTILES FINISHING WASTEWATER    • ASSESSMENT OF SYNERGIC REGULATORY ACTIONS OF SPRUCE BARK EXTRACT AND DEUTERIUM DEPLETED WATER ON MAIZE (Zea mays L.) CROPS    • LUNG CANCER RISK INDUCED BY RESIDENTIAL RADON IN CLUJ AND ALBA COUNTIES, ROMANIA    • A CLEAR SKY IRRADIATION ASSESSMENT USING THE ESRA MODEL AND SRTM DATABASE    • ENVIRONMENTAL FACTORS ASSOCIATED WITH DYSPHONIA IN PROFESSIONAL VOICE USERS    ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26014

The first edition of the International Conference„ECOIMPULS 2012- Environmental Research andTechnology” plans to open a conference seriesdedicated exclusively environmental issues. Thescientific topics are devoted to the on-going research onenvironmental topics regarding: „Environment – apolitical, economic and social responsibility”,„Water in a changing world”, „ZERO – waste cities”and „ Energy – beyond the conventional”.This scientific event aims to bring togetherprofessionals, academics, scie...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26015

AbstractThe HR BREACH model is a physically based numerical model for the simulation of breach initiation and formation throughembankment dams, dykes, and flood embankments. The model is used for the analysis of homogenous as well ascomposite/zoned embankments. Simulation can also include the effect of surface protection such as grass or rock blocks. Twobreach failure modes are available: failure by overtopping and failure by piping. Breach growth can proceed through surfaceerosion or head-cut e...
Autori: Andreja Jonoski, Ioana Popescu, Mark Morris, Mohamed Hassan, Tseganeh Gichamo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26017

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

AbstractThe hydrodynamics of two equipments from a surface water treatment pilot plant has been investigated through residence timedistribution (RTD) experiments using brine solution as tracer. Computational Fluid Dynamics (CFD) procedure, which isincreasingly utilized to study a wide variety of complex environmental fluid mechanics processes, was used to predict the flowpatterns and other properties of flowing fluids (e.g. velocity, concentration of species etc.). In this work, ANSYS Fluent 14....
Autori: Adina Pacala, Alain Liné, Alexandru-Dan Filep, Cosmina-Mariana Militaru, Teodor Todinca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26030

AbstractIn this paper we analyzed some characteristics of vacuum sewer systems from technical, economical, environmental and socialperspectives. The vacuum sewer systems transport wastewater with lower pressure (p<pat), and are compared to conventionalsewer systems with free level (p = bed) - gravity and under pressure systems (p>pat) - gravity or pumping systems. Vacuumsewer systems are recommended for rural communities and residential neighbourhoods surrounding urban areas, developed ons...
Autori: Corina Panfil, Ion Mirel, Izabella Szigyarto, Monica Isacu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26035

In 2012, the Faculty of Hydrotechnics,Geodesy and Environmental Engineering of The"Gheorghe Asachi" Technical University of Iasi,Romania celebrated 50 years of education in the fieldof hydraulic engineering at the Polytechnic Instituteof Iasi.In 1948, in the same time with the EducationReform in Romania, in Galati, the Faculty ofHidrology was founded. At the same time, studentswho were attending the Rural EngineeringSpecialization in Bucharest were also transferred tothe new established Faculty....
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26048

AbstractSimulations using computer models require detailed knowledge of all processes in the soil. Mohid Land is an important modelingprogram developed by a research team from Lisbon. It is a continuous, distributed, variable time step watershed that is grouping 4compartments and water moves through them. In this paper, the authors discuss the procedure applied for modeling using Mohidprogram and the results obtained during simulation of the behaviour of a type of soil....
Autori: Adriana N. Unguraşu, Cristina E. Iurciuc, Daniela F. Anei,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26049

AbstractIn 2010 in the area of Iasi city, Romania started the “Water-course regulation of Bahlui River, County of Iaşi” a project which inits first phase of development. It has as the main purpose to improve stream flow capacity and to guarantee the defending againstflood. Also, the project aim at developing a section of approximately 2.5 km located between the Stone Bridge (km 14+073) andTudor Vladimirescu Bridge (km 11+615) for recreational purposes. In order to obtain water storage, it i...
Autori: Catrinel-Raluca Giurma-Handley, Costel Boariu, , Tomi-Alexăndrel Hrăniciuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26050

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

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

AbstractThe scope of the present paper is water management dimensioning closed to the copper mining area in the Medet region(Bulgaria). The mining works left an open pit and several waste rock dumps within the catchment area of Medetska River. Atpresent although the flooding of open pit is going on, it will be finished approximately in 2018. Water treatment is necessary dueto the high concentrations of pollutants (sulphate and copper) in the waters influenced by mining. The objective of the stud...
Autori: Gabriela Biali, Petra Schneider, Ralf Löser
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26077

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

AbstractWith the development of transportation systems, the associated traffic noise problem has drawn more and more attention in HongKong. Under the Hong Kong Planning Standards and Guidelines, a standard of 70 dB(A), measured as LA10 (1 hour), has been setfor road traffic noise. The Calculation of Road Traffic Noise (CRTN) method has been adopted in Hong Kong to estimate suchnoise. This study first examined and evaluated the accuracy of this method in predicting traffic noise at different floo...
Autori: Cheuk Ming Mak
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26082

AbstractThe evaluation of the environmental impact of transport infrastructure entails a complex characterization of factors, attitudes andconsequences. In the frame of an ecologically friendly approach, sustainable alternatives and solutions for road asphaltpavements production and exploitation must be identified. A comparative evaluation of the environmental impact for recycledand traditional road pavements asphalt mixtures, expressed as the amount of equivalent carbon dioxide, per ton of mixt...
Autori: Alina Mihaela Nicuţă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26096

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 Nowadays, all over the world, the car transport sector is one of the main factors responsible for the Greenhouse Gas Emissions. The current systems of emission taxation do not take into consideration the distance travelled by cars; therefore, they are not fully compliant with the “polluter pays” principle. In addition to the produced inequality, these systems do not encourage the reduction of the distances travelled annually (with possible favorable effects on pollution an...
Autori: Cristian-Mihai Dragos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26120

Abstract The article presents the development of a mathematical model concerning thermal desorption in a tubular electric furnace, using the linear regression analysis principle. With a range of experimental data obtained from some laboratory tests on water evaporation plus pollutant (Hexaclorocyclohexane - HCH), evaporation resulting from the application of thermal desorption on some soil samples; a mathematical model was developed to calculate the mass of substance evaporated fro...
Autori: Calin Vasile Prodan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26125

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 Biogas can be used as a renewable and green energy source by upgrading to natural gas. Water scrubbing, which is one of the most widely-applied upgrading technologies, involves an accurate knowledge of the solubility of the main biogas components in water, which is essential to the design and optimization of the biogas upgrading process. In this work, we use several thermodynamic models available in the Aspen Plus software modeling environment to calculate the solubilit...
Autori: Petronela Cozma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26148

AbstractGroundwater in karst aquifer and porous aquifer always have close hydraulic connection. However, groundwater in karst aquiferalways behaves as turbulent flow, while the porous groundwater flows in a laminar way. Due to the different flow properties, it is difficult to simulate the connection between the two types of groundwater simultaneously, in one model. This paper aims atdesigning a coupled model which is able to describe the hydraulic connection between the karst and porous groundwa...
Autori: Yuqiao Long
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26156

AbstractEnvironmental proactivity is a key research topic as it arises as a value-adding creator and therefore constitutes a competitiveadvantage for companies. In this paper, we classify industrial companies according to their environmental proactivity and thenwe determine whether their economic performance differs in relation to the firms’ environmental position. We analyzed 132Spanish industrial firms located in the Valencian region and apply quantitative methods to conduct the analysis. The ...
Autori: María-del-Val Segarra-Ońa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26194

AbstractEco-innovation is defined as any form of innovation aiming at significant and demonstrable progress towards the goal ofsustainable development, through reducing impacts on the environment or achieving a more efficient and responsible use ofnatural resources, including energy. The chemical industry is usually considered one of the most polluting industries. Ensuringsafe production, transport and handling of its products, with care for the environment and in full accordance with regulation...
Autori: Ángela González-Moreno
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26196

AbstractThough at a first sight the potential of tourism was advocated, without any doubt, as an routine tool for improving the welfare ofthe population, in recent years several works have appeared that criticize the universal validity of tourism as a development tool,whose premise is that the relationship is not automatic between the two dimensions, but instead a country must meet certaincharacteristics in order for this link to occur and, therefore, calls into question the solution implemented...
Autori: Juan Ignacio Pulido-Fernández
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26197

AbstractThe transport of hazardous substances is an essential economic activity because it represents a quite relevant percentage of thetotal goods transportation. The risk associated to such an activity is fundamentally related to the possibility of an accidenttriggering that may cause negative environmental and public health consequences. A recent example is the Viareggio accident(2009), which involved the blast of tank wagons containing liquefied petroleum gas (LPG) and caused more than thirt...
Autori: Vincenzo Torretta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26200

AbstractSupply of heat energy is of the high importance in the northern countries of the Europe. EU energy policy and high prices of theheat energy resources takes a challenge to find any alternative resources for generation of heat energy. Therefore in this paper the integration of renewable energy source - solar energy into the existent heat energy supply system is analyzed as the alternative or additional source of heat energy. The case study of the Girionys boiler-house (at Kaunas district, ...
Autori: Jolanta Dvarionienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26201

AbstractKohonen Self-organizing map (KSOM) modeling have been applied increasingly for analysis, estimation and prediction ofseveral water quality processes, which are embedded with high complexity, dynamism and non-linearity. KSOM or unsupervisedneural networks were applied to microbial data (Escherichia coli, faecal streptococci, and total coliforms) from the effluent of atwo year data set (2008-2010) on two permeable (pervious) pavement systems used to treat storm water runoff contaminated wi...
Autori: Kiran Tota-Maharaj
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26226

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

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

AbstractHealthcare waste management is one of the most important environmental problems in the world and particularly in Tunisia,because of the potential environmental hazards and public health risks. The collection of infectious healthcare waste is a highlyvisible and important service that involves large expenditures. This study discusses the off-site transport problem of infectioushealthcare waste from the 12 hospitals in the governorate of Sfax (Tunisia) to a planned steam sterilization disp...
Autori: Wafik Hachicha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26252

AbstractInvestigations on thermochemical transformation of asbestos fibers followed by computer aided image analysis are presented.Asbestos Containing Wastes (ACW), notably asbestos-cement, were characterized before and after microwave heating withadditives aimed at reacting with and transforming asbestos fibers. Microprobe analysis helped determine the chemicalcompositions. X ray diffraction (XRD) was used to confirm decomposition of asbestos fibers during microwave heating. Electronparamagneti...
Autori: Yan Yvon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26256

AbstractA sustainable flood retention basin (SFRB) is an impoundment or integrated wetland, which has a pre-defined or potential role inflood defense and diffuse pollution control that can be accomplished cost effectively through best management practice in urbanor remote regions. A database comprising 372 SFRB, which belong to 6 types and are characterized by 43 variables, has beendeveloped for the central Scotland area. However, the determination of SFRB types and some characterisation variabl...
Autori: Qinli Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26264

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

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 present work is focused on the importance of the resolution and accuracy of the wind fields in modeling waves in the Black Sea. Two different wind fields are considered for forcing the third generation spectral wave model SWAN. The wind data wave model results are compared against ‘in situ’ measurements performed at the Gloria drilling unit and also against satellite data for a two-month period of wintertime at the beginning of 2002. Subsequently, the model simulations were extended ...
Autori: Dorin Butunoiu, Liliana Rusu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26283

AbstractThe road infrastructure has a major environmental impact by covering important land surfaces and consuming enormous amounts of raw materials for construction and maintenance. The impact of transport pavements needs to be considered from the design stage and to be examined during the whole life cycle of the infrastructure: raw materials extraction and initial transformation, manufacturing, placement on site, exploitation, maintenance, and demolition. This paper evaluates the impact of asp...
Autori: Isabela Maria Simion, Laura Dumitrescu, Maria Gavrilescu, , Radu Andrei, Sebastian George Maxineasa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26297

AbstractThis research introduces a new Robust Interval Type-2 Fuzzy Set Linear Programming (R-IT2FSLP) model to manage irrigationwater resources. This method improves upon previous interval fuzzy bound models by allowing uncertainties presented asmultiple fuzzy boundaries. It creates additional degrees of freedom and enable direct modeling of uncertainties within anoptimization framework. It more explicitly reflects the system’s uncertainties under the fuzzy membership function. The more ofR-IT2...
Autori: Guohe Huang, Lei Jin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26324

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

AbstractA deep understanding of the relationship between the solids deposition and head losses is vital to optimize the backwashing inbiological aerated filters (BAFs). In this article, the deposition solids were classified into four types: heterotrophic biomass,autotrophic biomass, inert biomass and extracellular polymeric substances (EPS). A concept model was developed to simulatethe solid deposition and the head loss development. The temporal and spatial distributions of the four types of sol...
Autori: Chengda He, Dongsu Bi, Jun Wu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26347

AbstractIn the context of the complexity of the environmental system, this paper addresses the problem of environmental modeling,considering the global aspects of sustainability as well as the linkage between environmental and economic issues. The survey onintegrated modeling highlights that the complexity of the environmental problems should be approached on the basis of multidisciplinarycooperation and studies. Furthermore, the European environmental standards and products quality standards im...
Autori: Ion Viorel Matei, Laura Ungureanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26356

AbstractInvestigating and exploring new methods of coal-mining environment has become a new project to resolve the safety of mineproduction. The virtual reality technology provides new ways and ideas for the safety of mine production, and the intelligence ofthe virtual environment is enhanced as the multi-agent is applied. Based on multi-agent technology and the investigation of themodeling approach of the virtual environment of the complex coal mine, a three-layer architecture model and the for...
Autori: Chaoli Tang, Chunling Wang, Liguo Qu, Liuyi Ling
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26364

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

AbstractFor efficient, economical and environmentally disposing the waste rock underground, based on principles of waste directbackfilling in fully mechanized coal mining, this paper carries out a field test in 6304-1 working face of Jining No.3 Coal Mine.We first design a waste rock direct underground processing system, including screening-crushing system, transportation system,transfer system, stope backfilling system and coal mining system. Then optimize the waste backfilling and coal miningt...
Autori: Jixiong Zhang, Qiang Zhang, Xu Zhao, Yanli Huang, Zhan Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26383

AbstractThe importance of air pollution for health results from the major role the air plays in preserving life. The air pollution is one ofthe most serious problems of the current society, both temporally and spatially. The air pollution of the environment is stronglyinfluenced by meteorological factors because of a complex combination of emission processes, transport, chemicaltransformations and the removal of pollutants through wet and dry processes. This study established a database on ozone...
Autori: Gilda Rusu-Zagar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26391

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

AbstractThe success of rescue in toxic, flammable and explosive environments can accurately be quantified by the number of injuredcaught at the event that occurs, identified, reanimated and transported safely to the nearest hospital or point of granting the firstaid. Unfortunately, in most cases, the area where these activities are developed, research is more or less accessible due to thepresence of smoke, toxic or explosive gases or lack of visibility. For this reason, most often we are witness...
Autori: Artur Găman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26403

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

AbstractPipeline crack-like defects are detected and localized through the monitoring of the transport parameters of the transmissionnetwork. Under SCADA monitoring, accidental gas loss is reduced and the negative environmental impact of the hydrocarbons isavoided. This paper presents a method for the localization of accidental gas leaks, the pressure gradient method combined with afuzzy analysis method, which operates simultaneously both numerical data and lexical arguments in order to accurate...
Autori: Adrian Bucur
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26418

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 objective of the study is to set up and calibrate a model using the soil and water assessment tool (SWAT) in order to simulatethe water flow in the Buyo Lake located in west of Cote d’Ivoire and to test and evaluate the usefulness and the performance ofthe model. In this study, we had used the ArcSWAT graphical user interface to manipulate and execute the major functions ofSWAT model from ArcGIS tool. Hydrological modeling of Buyo Lake Basin was carried out with the ArcSWAT interface...
Autori: Tanoh Jean-Jacques Koua
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26442

AbstractThis paper presents a three-dimensional mathematical model which characterizes the variation of sound pressure levelpropagation and the variation of attenuation of the sound pressure level propagated in an enclosed space. The variable taken intoconsideration both in the experiments and in the mathematical modeling were: the positions of the acoustic screen to noisesource; the height of the microphone to record the sound pressure level for a variable number of walls. The mathematical mode...
Autori: Claudia Tomozei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26443

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

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

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

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

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

AbstractIn this paper, a study is conducted to assess the ability and the accuracy of a CFD approach concerning the behavior of a linearheat source positioned in a test room. Firstly, the main characteristics of our numerical model (mesh generation, turbulencemodel, near wall treatment, radiation model and boundary conditions) are presented after a briefly description of the test roomtaken into account. In addition, we show also the significance of these issues within our CFD approach. Furthermo...
Autori: Raluca Teodosiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26467

AbstractThe present work is dealing with the identification of the mercury sources and the quantification of the mercury level in air andurban dust in the industrial area of Iasi municipality. A correlation between some meteorological indicators, atmospheric mercurycontent and the urban dust from the investigated area was pointed out, based on the real time measurements as well as spatialdistribution of other heavy metals in urban dust.The measurements of mercury level in air were carried out at...
Autori: Oana Maria Tucaliuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26479

AbstractBisphenol-A (BPA; 2,2-bis(4-hydroxyphenyl)propane) is a monomer used primarily in the production of polycarbonate andepoxy resins that has been reported to have estrogenic activity. The biodegradability of BPA has been previously investigated inseveral studies designed to simulate surface waters and biological wastewater treatment systems. However, there is littleinformation available about the phytoremediation of groundwater contaminated with BPA. Halophytic species are of specialintere...
Autori: Margarita A. Petoussi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26493

AbstractA pot experiment was conducted to evaluate the growth and metal accumulation in water spinach (Ipomoea aquatica) establishedon a 30-year old active firing range soil amended with chicken manure (CM) and coconut tree sawdust (CTS) at application ratesof 0%, 1% and 3% (w/w). Both amendments increased biomass yield and reduced plant metal uptake. The bioconcentrationfactor (BCF) and transportation factor (TF) values of the metals were in the order of Zn > Cu > Pb. The ammonium acetate...
Autori: Azlan Kamari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26499

AbstractThe phonic pollution has become a more serious problem in the recent years, especially because of traffic increase. This kind ofpollution is generated by all kinds of means of transport. One of its peculiarities is the repercussion it has on people, unlike theother types of pollution, i.e.: water pollution, air pollution, soil pollution, which can affect, to a certain extent, the entireenvironment. The phonic pollution is considered to be the most widely spread type. The numerous surveys...
Autori: Carmen Grecea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26500

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

AbstractThe objective of this study is air pollutants discharging on active centers, depending on its relative electric permittivity, effectivein thermal, chemical and mechanical hydrogen relaxation enabling the fastest velocity of pollutant heat transport. The diagnosticsof relative electric permittivity is carried out on the basis of the daily pollutants mass concentration monitoring results, in sixthday period in the various seasons and locations in Romania and Serbia. The monitoring results ...
Autori: Milan Pavlović
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26507

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

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

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

AbstractLand decay processes caused by erosion are very serious by their long term impact on the quality of soils, surface waters,environment and living standards. This article presents the results of a spatial erosion modelling. A new methodology is herebyproposed to estimate the soil losses caused by water erosion. The method is based on using GIS techniques, and its noveltyconsists in applying the mathematic calculation model on the pixel/ cell level, by using the “overlay” technique, which g...
Autori: Gabriela Biali
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26559

AbstractThis paper presents an optimization procedure to minimize the cost of drying in a solar cabinet dryer based on the results of amathematical model. The model has been developed previously for performance analysis of a solar cabinet dryer. The optimalvalues for geometry of the solar collector, mass flux of air through the collector, and initial moisture content are obtained in away that the drying cost is minimized. The results indicate that to optimize the drying cost, the best values of ...
Autori: Samaneh Sami
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26564

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

Abstract The objective of this study is to develop a mathematical model which would confidently predict the rate of substrate degradation of an oil-water emulsion in a laboratory-scale completely-mixed continuous flow reactor using the photo-Fenton treatment process. Two models are developed from first principles and the predicted substrate removal rates for both models are compared with experimental data. The principal conclusions of the study are that both models produce good correlations ...
Autori: Maha A. Tony
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26613

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 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 Anaerobic digestion was analyzed as the biological process that converts the organic matter present in various types of wastes, activated sludge from the wastewater treatment facilities respectively, into biogas. Latest advancements in the mathematical modeling, simulation and control practices have helped in gaining a better insight of the process. In this paper, an energy efficiency and techno-economical investigation of anaerobic digestion technology for the CHP cogeneration unit...
Autori: Alexandrina Zuza
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26648

Abstract Hydrogel membranes obtained by neat polyvinyl alcohol (PVA) or PVA with various bio insertions like: Scleroglucan (Scl), Zein (Zein) or Cellulose (Cel), were subjected to diffusion and sorption/desorption experiments using different type of dyes such as: Crystal Violet (CV), Methylene Blue (MB), Congo Red (CR). If the sorption, desorption or diffusion of a dye in/from/through a hydrogel is usually monitored by the dye solution analysis, in this case the transport phenomena are follo...
Autori: Adina Papancea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26649

Abstract Temperature-dependent d.c. electric conductivity of some recently synthesized organic compounds, 4,7-phenanthroline derivatives is studied. Thin-film samples (d=0.34-0.63 m) spin-coated from dimethylformamide solutions onto glass substrates have been used. Organic films with reproducible electron transport properties can be obtained if, after deposition, they are submitted to a heat treatment within temperature range of 298523K. Examined organic compounds in thin fil...
Autori: Cristina M. Al Matarneh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26656

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 In the present paper we studied the competitive transport of p-nitrophenol (pNP) and 2,4-dinitrophenol (2,4-dNP) from aqueous media using the technique of liquid membranes. This technique is very efficient, economic and selective when compared to other removal techniques of phenolic derivatives. The paper presents the influence of the sodium carbonate concentration from the stripping phase, the influence of the concentration ratio [2,4-dNP]/[pNP] upon the selectivity of the transpor...
Autori: Ioana Diaconu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26681

Abstract Mapping the distribution of populations has become an important issue in geographical and relative researchers. Combining population and spatial data allows for socio-graphic information to be visualized, in order to evaluate the total numbers of people at risk of environmental health hazards, who have died in natural disasters etc. Therefore, spatial distribution of population data is an effective way to integrate statistical and spatial data. This paper presents a multi-factor dat...
Autori: Yu Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26686

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 Individual exposure to particulate matter (PM) fractions is mainly determined by indoor source characteristics and personal activity patterns. This paper discusses experimental results obtained through the analysis of individual exposure of women to PM10 and PM2.5. To this purpose, 15 volunteers of different ages and lifestyles living/working in Ceccano (Italy) were selected and their exposures to PM10 and PM2.5 were measured through a handheld photometer. They also filled out a tim...
Autori: Giorgio Buonanno
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26703

Abstract Cybernetic Transportation System (CTS) is a relatively new branch of the Intelligent Transportation System, which can provide flexible transportation services for university campuses, resorts, and industrial parks. The proposed simulation approach is suitable for a preliminary assessment of CTS-related environmental impact in real-world driving conditions. The model is built to allow performance prediction of a single cybercar or the whole CTS in a wide range of operational conditio...
Autori: Leonid Tartakovsky
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26737

Abstract An experimental study of mixing in autoclave vessel equipped with an anchor impeller was performed on the sludge proceeding from the treatment of mixed municipal and industrial wastewater. This unit operation is part of a process for the recovery of sludge. The mathematical modelling of the mixing was done having in view the scaling-up of this process. The mathematical model allows the calculation of the mixing power N as a function of the impeller diameter d, the vessel diameter D,...
Autori: Ancaelena Eliza Sterpu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26744

Abstract The research is focused on the relationship between aviation systems and extreme terrorist events, the impacts of such events, and the solutions to manage the associated risks on medium and long term. The development of predictive models for extremeasymmetric events in aviation (EAEA) still represents an emerging direction of interdisciplinary research because not all mechanisms and interactions are understood. The testing of models is difficult due to lack of data and interpretatio...
Autori: Catalin Cioaca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26762

Abstract In the context of biogas sustainability assessment, a promising way to reach greenhouse gases (GHG) reduction and fossil energy savings is the anaerobic digestion (AD) of both animal manure and energy crops. Nowadays, more than 1,100 AD plants are working in Italy, mostly located in Northern Regions. To those plants with an electrical power lower than 1 MW, strong public incentives were given, therefore, several of them have been put into operation; this entailed increasing cereal ...
Autori: Jacopo Bacenetti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26771

Abstract The Bio.Lea.R project aims to demonstrate the performance of a landfill for less reactive, biologically treated waste (pretreated organic wastes) compared to a conventionally managed landfill, with regard to both environmental (biogas and leachate production) and economic aspects. The objective is to control the pretreated biodegradable waste through a liquid injection in order to achieve the same biogas quantity in a shorter time than in conventional landfill. Laboratory and full ...
Autori: Alberto Godio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26784

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

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

Abstract The wide spread traffic congestion witnessed in urban transportation network, especially during rush hours, aggravates vehicle exhaust emissions. Previous studies reveal that congestion not only slows down the traffic flow but also significantly increases emissions. This highlights the need of accounting for congestion-related emissions in transportation planning. In this paper, congestion-related emission is incorporated into a transit bus scheduling problem by a nonlinear programm...
Autori: Yan Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26806

Abstract The supply and demand contradiction of urban transport in China is increasingly prominent. And the urban traffic jam becomes more and more serious. It affects the normal urban residents, causes aggravating environmental pollution, and influences the normal operation of the urban logistics seriously. It becomes the restrictive factors of urban economic and social development. Accordingly, the paper analyzes the current situation of traffic jams, the reasons, and summarized existing c...
Autori: Haoxiong Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26809

Abstract The identification of the critical source of nonpoint source pollution (NPS) plays an important role in formulation of Best Management Practices (BMPs). SWAT (Soil and Water Assessment Tool) was adopted for NPS nitrogen pollution modeling for Qinhuangdao City. The model was calibrated and validated by Sequential Uncertainty Fitting Version 2 algorithm of SWATCUP (SWAT Calibration and Uncertainty Programs) software. The model was used to quantify contributions of different nitrogen ...
Autori: Jihong Qu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26810

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

Abstract One of the imperative concerns in river water quality management is to develop pollution control strategies, which are satisfactory for all pollution load dischargers. The game theory can be applied for modeling the natural process of decision making among dischargers under the condition of having just one water quality checkpoint in a river reach, which receives pollution loads of several dischargers who would be penalized for any water quality violation from the standards. In this...
Autori: Armaghan Abed-Elmdoust
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26834

Abstract Environmental issues have over the last few years become an increasing concern for both the public and for companies, but, less is known about how companies could internalize the negative effects of environmental issues. Public regulators are taking a tougher stance with regards to environmental regulations. As regulations become stricter, firms will have to pay the cost of compliance. In this paper, we attempt to shed some light on how firms could internalize these environmental ef...
Autori: Vera Ferrón-Vílchez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26838

Abstract Isotopic composition and electrical conductivity (EC) of groundwater were analyzed to trace the source and transport of pathogenic microbes in shallow and deep groundwater wells over a depth range from 9 m to 75 m below land surface (bls). Stable isotopic composition was used for the identification of the source of water while environmental tritium contents were used to estimate the time elapsed since the recharge of the groundwater. The results revealed that drain water contaminate...
Autori: Anju Pant
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26851

Abstract The adsorption of phosphorus (P) on sediment plays a significant role in phosphorus transport in aquatic systems. This research examined the effect of the main components of sediments (including iron (Fe), manganese (Mn) oxides and organic matter (OM)) on P adsorption and to evaluate their relative contribution with different sediment particle sizes. The sediments were separated into four particle-size fractions: 0-30 μm, 30-62 μm, 62-90 μm, and 90-125 μm, and then selec...
Autori: Yang Xiao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26873

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 Romania has recorded a dramatic number of road traffic accidents in the last five years. The latest European documents and statistics indicate that the country has the highest number of traffic fatalities across the Member States of the European Union. The aim of the paper is twofold. First, the authors aim to analyze the spatial characteristics of traffic accidents for the period 2010-2014: spatial distribution of accidents at county level, number of vehicles involved, socio-spatia...
Autori: Silviu Marian Ciobanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26893

Abstract The CoCrMo alloys have been widely used in artificial knee or hip joints. It is well known that these materials have a good corrosion resistance and acceptable biocompatibility properties. Zirconia as a ceramic biomaterial facilitates the osteoconductivity and tissue osteogenetic capacity in new bone formation around implant. Linear polarization and electrochemical impedance spectroscopy (EIS) were employed to characterize the electrochemical behavior of plasma sprayed yttrium oxid...
Autori: Manuela Romaş
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26896

Abstract In Palestine, environmental problems associated with industrial solid waste (ISW) have increased significantly in recent years. This paper presents survey results on current industrial solid waste management (ISWM) practices in the governorates of Nablus and Ramallah & Al-Bireh, Palestine. Solid waste generated from industries was quantified, characterized and discussed in terms of generation rate, storage, reuse/recycling, transportation, and final disposal. An attempt was made...
Autori: Issam A. Al-Khatib
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26903

Abstract Establishing a management system for collecting and disposing the solid waste materials is of great importance in urban areas. Belgrade, the capital city of Serbia, is at its initial phase of managing this problem. Currently, landfill disposal is the main option for dealing with rapidly growing amounts of waste. This paper’s research goal is to estimate the landfill gas quantity at Belgrade’s only landfill site Vinca, and to estimate the potential for collection and util...
Autori: Vesna Alivojvodic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26923

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

Soil and water are the two major resources in the Earth’s hydro biological and geological systems. The hydrology of arid areas has become a topic of interest recently for hydrologists as water shortage at these areas can affect the agriculture, irrigation, and industry as a whole. This has also prompted water resource planners to more thoroughly investigate water resource crisis at arid areas. In this respect, the Soil and Water Assessment Tool (SWAT), a semi-distributed hydrological mo...
Autori: Milad Jajarmizadeh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26941

In this study, response surface methodology (RSM) method was applied based on a five-level and four-variable central composite design. The optimization of the C.I. Direct Red 81 (DR81) removal by the combination of electrocoagulation (EC) and UV processes was also performed. The effect of initial pH, reaction time, current density and initial dye concentration on the dye removal was investigated to obtain the optimal experimental conditions. The optimal conditions with the dye removal of 95% ...
Autori: Elmira Pajootan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26942

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

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

The objective of this article is to study the evolution of soil erosion produced by the Siret River during 1989 – 2008. The hydrophysical and mechanic action of the river flow manifests by freeze, thaw, erosion, transportation, and alluvial deposit processes. The researched section was delimited in a sector of Siret River bed, where the exploitation of mineral aggregates is carried out on large areas. The influences and effects of deficient exploitation of mineral aggregates have a dire...
Autori: Stelian Cartacuzencu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26977

The application of chemical fertilizers and fungicides is an important source of heavy metals into the agricultural soil. Leaching and weathering can facilitate the transport of the contaminants through soil to the groundwater. In most rural areas, groundwater is used for drinking and irrigation purposes, without any treatment, population being exposed to direct contamination. The study area in this paper, Arjaat Village from Rabat Salé Zemour Zaer Region of Morocco, matches into this ...
Autori: François Xavier Nshimiyimana
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26980

The Lake Bacau I, located in Bacau City, Romania was built in 1966 with a double purpose: as reservoir belonging to the energy system of the Bistrita River and to provide the water needed for the industrial units located in the area. Also, for more than 40 years, the lake was used by the same plants to discharge the wastewater, more or less treated. In present, most of the industrial units are closed and the discharge of wastewater in the lake is banned, the area being used mainly for recreat...
Autori: Maria-Ema Faciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26987

Drainage water and tailings impoundments water geochemistry (pH, EC, alkalinity, trace element concentrations, major ions) were studied at the Anjir Tangeh coal washing plant. The drainage water with neutral to alkaline pH values, high SO42- concentration and low metal content represented typical neutral alkaline mine drainage (NAMD). According to the Stiff and Piper diagrams, the majority of water samples classified into Ca-Mg-HCO3- type except drainage and processing water which were placed...
Autori: Majid Shahhosseini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26997

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

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

Knowledge of the basic levels of heavy metal concentrations in soil and their spatial disposition, on a certain area, is particularly important for economic activities, but especially for preventing and stopping pollution. The spatial distribution maps, obtained by measurements performed (of a certain density), cover the entire studied area and are very useful. According to the literature several methods are known for building such maps, most of them based on a simple mathematical interpolati...
Autori: George-Călin Rogozan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27031

The investigation of bottom sediments in oxbow lakes was conducted in the free-flowing, meandering section of the Łyna River in N Poland. Seven oxbow lakes, differed by a degree of hydrological connectivity with the river channel, were chosen for the present study. In samples taken from 21 sediment profiles, particle size distribution, pH, bulk density, CaCO3, organic matter, total organic carbon as well as total forms of N, P, K, Ca, Na, Mg, Mn and Fe were determined. The gradient of de...
Autori: Szymon Kobus
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27052

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

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

Hydraulic modelling makes possible the identification of floodplain areas for flash floods with discharge of different return periods. High resolution DEMs allow river bed geometry identification, while prior hydrologic modeling results can serve as input data for the hydraulic model. Once the river bed and floodplain roughness coefficient are set, the floodplains can be delineated on the base of MIKE11 model. For the present study the authors have used three gauged small rivers situated in t...
Autori: Maria-Mihaela Győri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27115

In Palestine, the energy situation is unique compared to other Middle Eastern Countries, as there are technical and political challenges for transporting, storing, importing and exporting energy. Actually, energy import from Israel meets the major share of Palestinian energy needs. Palestinian reliance on Israel concerning its energy supply is an issue due to the political situation. Furthermore, from an environmental point of view, Israel predominantly relies on fossil fuels for its own elec...
Autori: Jacopo Bacenetti
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27120

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

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

The important factor for health hazards in major cities in India is air pollution. Due to the sudden increase in vehicular population in the city of Chennai, South India, there is a high increase in vehicular emission caused by the vehicular effluents like Carbon monoxide, oxides of Nitrogen, oxides of Sulfur and other Particulate Matter. This study proposes an advanced state of the art technology (On Board Diagnostics) to acquire and process data from the vehicular emissions through online data...
Autori: Gunaselvi Manohar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27221

In the present study, the effect of chitosan as an eco-friendly coagulant aid was investigated for removing turbidity (bentonite) and humic acid (HA) in the coagulation process. The effects of various operational parameters such as initial pH of the solution (4-9), dosage of chitosan (1-4.5 mg/L), dosage of alum (10-40 mg/L) and initial turbidity (10-150 NTU) were investigated. An artificial neural network (ANN) model was used to predict the performance of turbidity removal efficiencies by coagu...
Autori: Abdolmotaleb Seid Mohammadi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27223

Life Cycle Assessment (LCA) is a methodology that can be used to evaluate the environmental performance of municipal solid waste management systems (MSWMS). Despite of Waste Directive provisions, this methodology is insufficiently applied as a decision-support method able to identify the best option for the waste management in Romania. In this paper we applied LCA methodology to study of the municipal waste management system of Cluj County, supported by GaBi software. The aim of this study is to...
Autori: Gabriela-Emilia Popiţa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27225

Studies about microwave (MW) sludge conditioning method have dealt mainly with municipal secondary sludge processing. We considered necessary to examine the applicability of the microwave process for other type of sludge, such as primary sludge originating from the food industry. The aim of our work is to identify the main influential operating parameters of MW pre-treatments applied for primary meat processing wastewater sludge (MPWS) as a conditioning process, followed by their optimization fo...
Autori: Sándor Beszédes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27236

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

Public awareness and concern with impacts of pollution on multimedia environment have been greatly increased in the last few decades. There are growing needs for creating remediation strategy and setting effective standard and regulations to reduce pollutant levels in the environment. To satisfy such need, tools that can provide comprehensive understanding and characterize the behavior of chemical in the environment are required for environmental risk assessment and management. A new integrated ...
Autori: Zhi Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27251

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 paper describes laboratory experiments conducted to investigate groundwater flow and solute transport within the capillary fringe (CF) and exchanges between the CF and the region below the water-table. An experimental bench was developed in order to simulate an unconfined aquifer, to observe the development of the CF and to study nitrates transfer from groundwater to CF, and also the fate of nitrates into the CF. The experimental bench has three compartments, the middle one being filled wi...
Autori: Mihaela Amalia Diminescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27277

Ground water is an important source of clean water supply throughout the world. A growing literature on the management of groundwater which takes into account the interaction of groundwater with surface water resupply sources (e.g., streams or lakes) is driven by concerns of intensified global fresh-water use coupled with increasing industrial and agricultural pollution levels. Our joint laboratory and numerical experiments simulate water withdrawals via two pumping wells from an unconfined aqui...
Autori: Anca Marina Marinov
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27302

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

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

During the development of an underground explosion phenomenon, due to the energy of dynamic wave, important mechanical effects are registered both in the affected mine workings and in ventilation constructions (stoppings and seals, ventilation doors, regulators and air crossings). An explosion directly affects the ventilation network by modifying specific operational parameters of the main fans. This creates a different natural post event repartition of the air flows, at the branch level. In or...
Autori: Marius Cornel Șuvar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27367

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

In this study, a decision support system based on a stochastic optimization model under modeling uncertainty and parameter certainty (SOMUM-DSS) is developed for petroleum-contaminated sites management. The SOMUM-DSS incorporates scenario analysis, numerical simulation, multivariate analysis, nonlinear optimization within a decision support system. It provides an effective tool for decision makers to select the optimal remediation strategy. The developed SOMUM-DSS is then applied to a petroleum-...
Autori: Qi Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27374

Drilling waste management for oil and gas industry involves collection, transportation, processing, recycling, disposal, and monitoring of waste materials in order to reduce their effects on health and environment. In the Exploration and Production industry, environmental concerns have made effective management of drilling waste at well sites a great priority. Effective waste management is thus a key element in a successful drilling project. The industry therefore relies on effective expertise a...
Autori: M. Enamul Hossain
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27375

This study models the potential effect of various fuel treatments on crown fire behavior by using two crown fire simulation models in Aleppo pine (Pinus halepensis Mill.) stands. Fuel complex characteristics that influence fire behavior were measured in a representative Aleppo pine stand in northern Greece, using standard surface and canopy fuel inventory methods. Nine different fuel treatments (control, prescribed burning, controlled grazing, thinning without slash removal, thinning with slash...
Autori: Ioannis D. Mitsopoulos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27382

The kinetics of azo dye reduction based on combined effect of biochemical reduction by anaerobic mixed culture and chemical reduction with hydrogen sulfide was investigated. Hydrogen sulfide was produced by sulphate reducing bacteria existing in the anaerobic mixed culture. The effect of initial anaerobic biomass, initial substrate, and initial dye (Reactive Orange 107) concentrations on reduction kinetics were studied with batch assays. The municipal waste sludge was used as electron donating s...
Autori: Umay Gokce Ozkan-Yucel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27386

• 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

The transport of both goods and passengers notably influences air quality. If strong decisions by the governments will not be taken, oil consumption for transport will be nearly doubled in 2030 if compared with 2000, thus considerably increasing the atmospheric presence of greenhouse gases. To boost the purchase of alternatively supplied cars would avoid serious, if not catastrophic, climatic changes. Our investigation shows what the situation is concerning new cars sold by SINA, an official ...
Autori: Veronica Novelli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27411

Biofuels and biochemicals are currently centre stage in the on-going scientific and political debate. The prevalent opinion is that their use can significantly reduce the greenhouse gases (GHGs) emissions and primary energy demand along their whole value chain. This study aims at evaluating the environmental impact in terms of GHGs related to carbon dioxide (CO2) of secondgeneration sugars (2GSs) production from cardoon residual biomass. Cardoon is a favourable crop in Mediterranean areas for...
Autori: Maria Teresa Petrone
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27413

Carbon Footprint (CF) is an environmental indicator used in Life Cycle Assessment (LCA) that allows measuring the total amount of CO2 emissions caused directly or indirectly by an activity or accumulated through the life cycle stages of a product (ISO 14064-14067). In this article CF was used to analyse and assess the environmental impacts of the resources used for the collection of municipal solid waste by the company Contarina S.p.A. Contarina oversees waste management for part of the Treviso...
Autori: Alex Zabeo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27415

The efficient use of fresh water sources and proper modeling of the water quality can only be possible when flows in the dam reservoir are well defined. Therefore, in this study, a hydrodynamics model of an actual dam reservoir in three dimensions for simulating a real dam reservoir flows for summer season is created. The model is developed using nonlinear and unsteady continuity, momentum, energy and k-ε turbulence model equations. In order to include the Coriolis force effect on the...
Autori: Fatih Üneş
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27430

The Artificial Neural Network (ANN) model was used to predict dye (Reactive Blue 19) removal efficiency from aqueous solution using modified pomegranate residual based on 124 experimental sets. Three-layer ANN models with different neurons numbers at a hidden layer were developed. The optimum network yielded a network error of 0.0054 and 0.9606 for mean square error and coefficient of determination, respectively. Furthermore, sensitivity analysis of the network revealed that the adsorbent do...
Autori: Elham Radaei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27439

Eutrophication is water pollution initiated by high amounts of plant nutrients. With the excess influx of nutrients from human activities, the eutrophication process begins and causes a breeding ground for algae. The amount of nutrients present in any given cycle will be higher than the levels present in previous cycles. Therefore, it is very important to manage water quality in lakes and dams to prevent and to slow or to reverse the eutrophication process. This can be ensured by using effect...
Autori: Saeed Bashiri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27442

Despite the industrial decline, air pollution continues to be a major issue in Romanian cities. As in many other urban areas, in Iasi city the traffic is one of the main sources of air pollution which has a high environmental impact, also exposing population’s health to a high risk. The study focuses on the small scale examining the spatial and temporal variability of air pollution in a very important and frequently circulated crossroad, Podu de Piatra. Using various data from air pollu...
Autori: Alexandru Banica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27443

Soil erosion by water, sediment transport, sediment deposition and their impact on watershed area are complex processes. Therefore, the state of theoretical knowledge and mathematical modeling of them are still in an incipient phase. Most of the existing mathematical models are based on relations obtained either experimentally or in laboratory conditions, either in situ or physical models; because of existence of multitude factors involved in these processes and influence each other. These m...
Autori: Erika Beilicci
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27449

To assess energy conservation and emission reduction effect on traffic and transportation at macro level more scientifically, the evaluation system based on the improved osculating value method for transportation is established. Information entropy weight is introduced to the traditional osculating value method and the numerical matrix normalization process in the osculating value method is simplified. The pollutant emission and the energy consumption is defined as negative index, and the capaci...
Autori: Yang Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27470

Fly ash ponds are dangerous for the environment because the fly ash can cause multiple harmful effects. This is cause for major concern for researchers and industry people alike. The rise of the water table level inside the ash structure may cause a loss of stability over time, with adverse effects on the environment. Therefore it is necessary to adopt efficient solutions to ensure the stability of ash ponds and rapid measures that can be applied. The use of geosynthetic materials has proven to ...
Autori: Lidia Niculiţă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27483

Studying on evolution law of sediment concentration in the lower Yellow River, revealing the evolution cycle and the relationship with the grain size of sediment have an important guiding significance for the governance of sediment in the Lower Yellow River. Based on the sediment data concentration of four important hydrological stations, Huayuankou, Gaocun, Aishan and Lijin, in the lower Yellow River. The evolution of the sediment sequence cycle were studied using Morlet wavelet analysis the co...
Autori: Xianqi Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27491

This study evaluated the performances of adsorption and Fenton oxidation for the removal of multilan red (MLR) and multi-active blue (MActB) dyes from aqueous solution. Zeolite, the adsorbent used in the study was modified using two surfactants: hexadecyltrimethylammonium bromide (HDTMA-Br) and cetyltrimethylammonium bromide (CTAB). The modified zeolite characterized using FTIR, SEM and XRD analysis. The modification studies revealed that HDTMA-modified zeolite exhibited better performance than ...
Autori: Jacob Kitinya
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27505

Many firms are beginning to use sustainable Information Technology (IT) initiatives in their daily operations. The usage is generally associated with several factors, among them pro- environmentalism behavior and organizational pressure. Furthermore, the usage of sustainable IT initiatives has been considered to have influenced the financial performance of firms. Hence, this paper seeks to examine the factors associated with sustainable IT usage and their impact on the financial performance of ...
Autori: Noor Ismawati Jaafar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27528

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

The solid-liquid extraction process and some of its influencing factors such as solid-liquid ratio, temperature and salt initial amount have been investigated. Also, mathematical modeling for mass transfer coefficients calculation was applied. An inert porous solid material (coal), impregnated with 10% and 20% mass NaCl or 15% and 30% mass CaCl2, was used. The leaching was conducted in a fixed bed column, in laminar flow. The CaCl2 impregnated samples were investigated in a column with a height...
Autori: Marcel Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27557

Urban expansion, often seen as an indicator of economic growth and a possible response to housing crisis in big cities, is the main driver for carbon emissions in the metropolitan area due to higher values of household income, vehicle ownership and home size. The transport related pollution includes over 200 different compounds: besides CO2 emissions, CO, NOx, BTX and dust resulting from exhausting processes, from abrasive wear of brakes, tires and road surfaces. The expansion of the urban areas...
Autori: Lucian Roșu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27560

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

Increased concern about global warming in today’s world has led to the legislation of regulations that seek to gradually reduce the amount of greenhouse gases emitted by industrial sectors and along their supply chains. This study focuses on the amount of carbon emitted in a two-echelon supply chain in which one supplier delivers a single product to a group of retailers and attempts are made to integrate and coordinate its different members. A mixed integer programming model is thus develo...
Autori: Seyed Hesameddin Anvar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27610

While trying to reduce the air pollution caused by traditional traffic means like planes and conventional cars, new concepts of car sharing (either conventional or electric) emerged. Although many such concepts are daring and innovative, they're not implemented on a large enough scale; to help reducing air pollution, the acceptance (and hence implementation) of these concepts needs to systematically increase. This paper introduces a design methodology for such a concept - based on competitiv...
Autori: Laszlo Bartha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27632

Degradation of Clindamycin phosphate (CMP) was studied in aqueous solutions by an anodic oxidation process under galvanostatic conditions. The electrolysis cell consisted of a Ti/SnO2-Sb anode, prepared by dip-coating technique, and a 316 stainless steel cathode, both of which had a surface area of 6 cm2. The effects of critical factors, including CMP concentration, current density, initial pH, and the supporting electrolyte were evaluated. The electrochemical oxidation of CMP was controlled by ...
Autori: Mitra Gholami
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27639

The main objective of this research was to evaluate the environmental impact generated by municipal solid waste during its collection, transportation, treatment and processing in the south-west region of the department of Norte de Santander, Colombia, by means of Life Cycle Assessment (LCA). Three strategies for waste management were considered: the current baseline situation, wherein 100% solid waste was taken to the landfill; plus, an optimistic and a pessimistic scenario in which solid was...
Autori: Oscar Orlando Ortiz-Rodriguez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27665

In this work, PM2.5 removal mechanism was explored to investigate PM2.5 collection efficiency under the influences of applied magnetic field and diffusion charging (the main charging mode for submicron particle). The proposed electrostatic precipitators (ESPs) mathematical model considered three-field interaction between fluid field, electromagnetic field and particle dynamic field. CFD software FLUENT was used to generate the simplified solid structure of the ESP. In numerical calculation, t...
Autori: Jian-Ping Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27667

This paper presents an assessment of the toxic compounds released from metalworking fluids (MWFs) used in aluminum solid waste processing and from aluminum slag landfills, and their impact on environmental quality and human health. The mean concentrations of dust, oil mist, aldehydes, volatile organic compounds (VOCs) released from metalworking fluids were determined in machine shops. The exposure in machine shops was quantitatively dominated by VOCs, whose concentrations varied in the range...
Autori: http://www.ecozone.ro/reviste.php?RID=27677

The article presents a study on indirect environment-related effects of electric car vehicles use. Although electric vehicles are considered zero emission vehicles, their use may be linked to indirect pollution of environment caused by energy sources used for electricity production and also other sources of pollution such as poor recycling procedures. A computer simulation was performed to determine the energy consumption of electric vehicles available on the Romanian car market. The values obta...
Autori: Bogdan Ovidiu Varga
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27686

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

In this study, the development of a suitable methodology for establishing and monitoring indicators of Ecosystem Health (EH) and its responses to wildfire using Earth Observation (EO) data synergistically with Geographical Information Systems (GIS) is investigated. The proposed methodology combined GIS and Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) data to assess ecosystem characteristics, including its vigor, organization and resilience, for a case study in Central Gr...
Autori: Aaron Evans
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27745

The probabilistic estimation and the risk analysis of the exposure to pesticides through the ingestion of plants and food products is an important task for ensuring informed decision making and appropriate consumer protection. Monte Carlo-based methods are powerful tools in this regard, allowing for the empirical estimation of the distribution of exposure values, as well as for carrying out a corresponding uncertainty analysis. Such findings are important for assessing the exposure risk for mult...
Autori: Petronela Cozma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27754

The macrophyte Pistia stratiote was used as biosorbent for the removal of Black Krom KJR (BK-KJR) dye in synthetic aqueous solution. Initially, some tests were performed to verify the best operational conditions such as pH, biosorbent particle size, sorption temperature and stirring speed, which were later used in the kinetic and equilibrium tests. All tests were performed in duplicate. The highest removal rates of the pollutant were achieved at the process conditions of initial pH 2, granulo...
Autori: Aparecido Nivaldo Módenes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27843

The main topic of this study is the photo-optical and electrochemical behavior of a series of fluorinated copolyimides containing both oxadiazole and perylene moieties in the main chain. The polymers prove a strong photo-optical stability on a large temperature domain and display different types of photoluminescent behavior in solution and in solid state, with emission maxima in the bluish and green–yellow domains. Cyclic voltammetry investigations suggest that the polymers can be easil...
Autori: Radu-Dan Rusu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27883

The Danube River forms one of the largest and most complex deltas at the Black Sea, being a Biosphere Reserve, UNESCO World Heritage and Ramsar site. This study assesses the spatial variability of arsenic contamination of the water in the Danube Delta. Water samples were collected during all seasons in 2013 from the south-east of the Danube Delta and analyzed through HG-AAS method for arsenic. Data were handled using two different approaches. First, a complex hydrological model was compiled, ...
Autori: Gabriel Gati
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27884

Lake Hazar is one of the largest and deepest lakes in the Eastern Anatolia Region of Turkey. It is an outstanding natural resource and famous for its blue, clear, deep and alkaline waters. However, a drastic decrease in water quality and water clarity of the lake has occured in recent years. This decrease is mainly a result of nutrient and sediment transport to the lake. This study was conducted to assess water quality of Behrimaz Stream and amounts of freshwater, nutrients, major ions, biolo...
Autori: Memet Varol
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27891

This study is an examination of personal values, perceived consumer effectiveness (PCE), and demographic factors for their influence on Korean consumers’ green purchasing behavior. A survey conducted in Seoul, Korea, meaningfully supports the proposed relationships between value orientations, PCE, education level, and green purchasing behavior. Specifically, structuralequation modeling confirms that egoism directly and negatively influences green purchases, and that PCE moderates the in...
Autori: Yong-Ki Lee
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27906

In this work, the examination of separation of gypsum from wastewater generated during the machining of casts and the method of waste gypsum management have been presented. This waste gypsum is produced in Ortolab Poland facilities. Gypsum casts are cut and ground in water-cooled circular saws. Wastewater, with over-normative content of suspension, 10000 mg L-1 and sulphates, 1600 mg L-1 is produced in the process. The analysis of water and wastewater management in Ortolab Poland facilities l...
Autori: Ewa Liwarska-Bizukojc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27910

We assessed the variability of the main physico-chemical parameters of drinking water: oxidability, turbidity, conductivity, water hardness, free chlorine concentration, chlorides and nitrates across the four seasons (Spring, Summer, Autumn of 2013 and Winter of 2014). We collected data from several points in the supply network of Satu Mare city, NW of Romania, where the source of drinking water is groundwater. The results revealed significant higher average values in spring for some of the ...
Autori: Thomas Dippong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27928

Sustainable development brings in advance a new set of values that will guide the future model of economic and social progress, values that focus on human and his current and future needs, on the natural environment - protecting and preserving it, as well as on mitigating the current deterioration of ecosystems. The present paper aims at improving a calculation method for measuring the ecological footprint generated by road traffic, through modifying the concept of integrating variables, incr...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27948

The current paper is an overview on previous and ongoing research carried out by the authors concerning the use of Computational Fluid Dynamics for the accurate classification of hazardous Ex areas generated by flammable gases, for the optimization of computational simulation of air-methane mixture explosions by using ANSYS CFX and FLUENT and for calibrating computational simulations of gas explosions using the Schlieren effect. These research works containing analytic studies have led to the...
Autori: Vlad Mihai Păsculescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27962

Watercourses that transit rural / urban areas are susceptible to the phenomenon of aquatic pollution due to various types of polluting species. The important issues of river pollution and of polluting species dispersion, require an approach with predictive tools (models for transport of polluting species) which can evaluate the performance of depollution measures/actions to reduce pollution and to take optimal management decisions. Thus, from January 2017 to May 2017, a monitoring investigati...
Autori: Lorand Toth
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27967

The paper presents a methodology for determining the conditions in which the liquid phase occurs in the transported natural gas. This methodology allows fast and accurate determination of the phase in which water can be found in natural gas transmission pipelines and also the possibility to highlight the points in the transmission system in which water is in liquid state. A complex function which can describe the phase behavior of water from natural gas has been defined by processing the phase e...
Autori: Sorin Neacşu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27970

The paper presents an experimental system enabling a laboratory simulation of several types of critical situations and aggravating circumstances (sources of smoke, fog, rain, heat) using a thermovision equipment. The critical situations taken into consideration are those caused by human negligence or natural disasters such as earthquakes. Aggravating circumstances are those considered as being limit. The proposed thermovision equipment with appropriate accessories must highlight and determine...
Autori: Catalin Spulber
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27997

Dairy wastewater has been a major environmental concern because of massive effluents characterized by high pollution load. This study reports the influence of initial pH (pHi), residence time (τ) and elapsed time (t) on the %COD removal (Y1) and specific energy consumed (kWh per kg of COD removed, Y2) for real dairy industry wastewater treatment in continuous stirred tank electrochemical reactor (CSTER) using aluminum electrodes. Central composite design (CCD) was applied for designing th...
Autori: Poonam Kumari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28011

The present study has established a methodology to determine the most environmentally sustainable area for the expansion of a city center using Geographic Information System (GIS) technology. This technology permits the graphical information associated with a municipality to be manipulated, integrated, analyzed and represented in a simple way that is cost effective during the early decision making steps, which analyze the various options regarding the urbanistic planning prior to taking final...
Autori: Marco Criado
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28028

Evapotranspiration is one of the main sources of water loss in arid regions. Although FAO Penman-Monteith (FAO-PM) method is one of the accurate method to estimate potential evapotranspiration (PET). Nevertheless, it is a point-based method and requires several weather data such as radiation, wind speed, air humidity and temperature, which is not available in all regions. Therefore, this study is aimed to estimate PET equivalent to FAO-PM model using satellite data and Priestly-Taylor (PT) model...
Autori: Azam Sadat Hosseini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28062

The article describes a pilot study on a wastewater treatment plant operating a biogas plant (2.793 MW). The authors of the experiment used organic waste material, including: chicken fat with feathers (FF), molasses (M), glycerol (GL), raw sewage sludge (SS) and digested sewage sludge as an inoculum. The parameters of raw and digested sludge were compared, e.g. changes in the concentrations of ammonium nitrogen (N-NH4+), alkalinities, chemical oxygen demand (COD) and light metal ions. Potenti...
Autori: Agnieszka A. Pilarska
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28064

In the past years, there has been great interest in developing tools for an effective management including the evaluation of the impact of different policies on decreasing greenhouse gas emissions (CO2) and other transport pollutant-related emissions, especially in the urban areas. This paper represents a first attempt to study a new approach to identify criticalities of pollutant emissions associated with road traffic in urban areas. The tool we propose concerns the development of an emissio...
Autori: Rozalia Melania Boitor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28070

Digestate derived from the anaerobic digestion of biowaste is a nutrient-rich substance whose direct use on land is not permitted by the Italian Legislation. The possibility of recovering its nutrients can be given by the processes of stabilisation and sanitation required by the Italian Legislation. Among these processes, composting and calcium hydrolysis with neutralization (CHN) permit to obtain useful soil improvers like compost and defecation gypsum (DG). In this paper a gate-to-gate Life Cy...
Autori: Sofia Spagnolo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28080

We used windbreak nets to reduce erosion and sediment transport in a semiarid area. A 13x30thread·cm-2 and 39% mesh net facing the wind increased average erosion reduction up to 72% at a height of 0.4 m in recently tilled olive groves. The use of sonic anemometry techniques for identifying wind movement patterns has rarely been exploited for improving field studies, and much less for windbreaks. Sample components collected in traps placed at different heights and distances from the windbr...
Autori: Carlos Asensio
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28099

The paper offers information on the energy efficiency of the honey production in the mountainous area of Romania. The field research was carried out as a face-to-face interview in 2018, on a representative sample including 134 beekeepers. The main results of the analysis of the energy input–output are: input energy 754.9 MJ/hive, net energy -417.3 MJ/hive, efficient energy use 0.47 and specific energy 27.0 MJ/kg. From the total inputs, direct inputs and renewable inputs account for 38.1% a...
Autori: Radu-Adrian Moraru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28102

Wastewater generated from industrial activities has delivered elevated heavy metal concentrations into fresh and salted aqueous systems. Herein, the migrated trace metals were studied from their initial location through a coastal aquifer up to the seawater. The experiments were carried out at lab scale using a sandbox with glass beads and two attached chambers containing natural groundwater and seawater. The study focused on the transport behaviour of heavy metals such as copper, zinc and lead i...
Autori: Abdelkader Tawfeek Ahmed
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28111

The maintenance of flexible roads or roads at end of life service generates high quantities of reclaimed asphalt pavement every year. The reuse of these materials, considered for a long time as waste, allows a substantial saving in transport, energy, and maintains dwindling natural resources. Recycling of asphalt also helps to reduce inert waste storage volumes, and conserve valuable landfill space. The applicability of recycled asphalt was tested in laboratory, and asphalt mixtures containing 2...
Autori: Mehena Oualit
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28117

Little information is available on the combined effect of weather conditions and tillage systems on nitrogen lost from wind erosion. A field study was carried out on an Entic Haplustoll to analyze N content in the eroded material. Field measurements were made during the winter fallow (WF) and summer fallow (SF) periods in conventional (CT) and a no-till (NT) fields. Winters are more humid and less windy than summers. Results showed that there were N losses and gains by the wind with both tillage...
Autori: Sergio Alberto Abascal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28119

Building industry is a very large domain in the global economy and it has a lot of consequences over the environment through many and different aspects. These consequences are various, from the more and more extended area of construction up to gas emissions released during materials manufacture and transportation, construction process, exploitation of buildings and, finally, their deconstruction. The concrete, the most used material in construction industry all over the world, must become green...
Autori: Catalina Mihaela Gradinaru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28138

As CO2 concentration levels in the atmosphere are steadily reaching a point of no return, it is paramount that actions are taken towards mitigating emissions by improving the efficiency of existing processes. Sorption-enhanced water-gas shift (SEWGS) combines the water-gas shift reaction with in-situ adsorption of CO2 on potassium-promoted hydrotalcite (K-HTC). This enables a direct conversion of syngas into separate hot streams of H2 at feed pressure and CO2 at regeneration pressure, making th...
Autori: Vlad-Cristian Sandu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28149

The Cellets product represents a cellulose material, which combines different properties such as the perfect sphericity, fine particle size distribution, low friability and solubility, and inertness. The experiments were carried out with Cellets 200 granulated celluloses used as a filling material for a laboratory glass column, using diluted dye solution (9-10 mg of dye /L of solution) at adequate initial pH (4.7). The effect of flow rate was investigated, and the modeling of experimental data f...
Autori: Iulia Nica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28155

This work seeks to develop a suitable heavy metals precipitation modeling approach that could give reasonable results in mainstream use with industrial wastewater treatment. This paper is devoted to the thermodynamic analysis of the degree of precipitation of slightly soluble hydroxides and salts in industrial wastewaters in order to optimize the technological schemes of extraction and reuse of heavy metals from industrial waste. Based on the notion of the solubility product, the equations desc...
Autori: Igor Povar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28156

The pyrolysis of frying palm oil was studied in continuous stationary process, in a micropilot plant. The main factors affecting the products yields are temperature and residence time. For the studied parameters range (temperature: 475oC - 630oC and residence time: 120 s- 240 s), the gas yield varied between 7.9% (w/w) and 63.3% (w/w), related to feed. Unsaturated hydrocarbon yields (olefins) can reach 24-29% (w/w) related to feed, at the right processing parameters, the main products having goo...
Autori: Ana Maria Sivriu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28162

Distribution of solid particles in the atmosphere around the pollution sources has an important role in decision making to oppose with air pollutants. This study reports the concentration and distribution of 11 heavy metals including Cu, Co, Ni, Cd, V, Ti, Mo, Cr, Pb, As, and Hg emitted from 6 incinerators (A to F) with various feeds and operating conditions to determine the extent of exposure for industrial and residential areas. These incinerators located at Petrochemical Special Economic Zone...
Autori: Akbar Pirbadali-Somarin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28166

The goal of this paper is to contribute to environmental improvement. This goal has been achieved by the development of an algorithm that allows the optimization of fuel consumption and transport of combustion products. The paper considers the outlier – robust recursive algorithm. This algorithm is used for identification of multivariable ARMAX (Autoregressive Moving Average with Exogenous Variables) models. In this paper, we introduce pseudo-Huber loss function which is a continuous nonli...
Autori: Vojislav Filipovic
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28167

A Computational Fluid Dynamics (ANSYS Fluent CFD) software was applied for the examination of a critical combined sewer section of Budapest (Hungary) sewer network. The critical part of the main branch is located at a combined sewer overflow (CSO) which is implying environmental risk for the receiving water body. The CFD simulations proved the anticipated disadvantageous hydrodynamic effects of the lateral inflow. A discrete phase model (DPM) was also applied to analyse the sediment transport...
Autori: Marcell Knolmar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28183

In the present research, four meta-heuristic algorithms named Genetic Algorithm (GA), Gravitational Search Algorithm (GSA), Particle Swarm Optimization (PSO), and Artificial Bee Colony (ABC) have been used for optimal design of cascade spillway to minimize the construction cost. Usually, the traditional design methods such as Vittal and Porey (VP) method or experimental modeling are used to solve this problem leading to infeasible or near optimal solution. The main novelty of this paper is to...
Autori: Pedram Jazayeri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28195

Globally the researchers are identifying the new ways for better urban sustainability. One major issue in the current world is the lack of fresh water availability in cities due to rapid increase in the population. To meet water requirement, scientist are exploring different ways to enhance the groundwater recharge capacity. One such solution is the use of building information modelling (BIM) technology to identify multiple structures that can be constructed to provide the potential recharge. T...
Autori: Ahsen Maqsoom
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28218

This paper develops investigations in the field of analytic hierarchy techniques that could be applied in public transportation systems. The study focuses particularly on the public transport bus services in Bucharest, the capital of Romania. The research aims to investigate the methodological feasibility of the analytic hierarchy process to analyze and measure the perceptions and needs of the Romanian public transportation users. Towards this objective, the study presents the current state of t...
Autori: Ruxandra Dinulescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28220

In this article, issues of environmental pollution due to long-range atmospheric transport of heavy metals are considered. Researches of recent sediment cores of Lakes Liunkunlampi and Raivattalanlampi from the Republic of Karelia were carried out. The purpose of the study was to give a detailed environmental and geochemical assessment of the recent sediments in these small lakes located in the southwestern part of Karelia. The scope of the study covers the area of the southwest of Karelia (Russ...
Autori: Zakhar Slukovskii
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28229

The paper highlights the problem of assessing the level of environmentally acceptable green transport in modern supply chains. Cargo owners put the elements of time and price of service into the forefront, where the degree of pollution (CO2, NOx, SO2, PMs) and the need for energy efficiency is too often ignored. Various studies highlight the lack of methodological approaches to the standardized evaluation of the environmental impacts of intermodal transport, thus the aim is to formulate a modul...
Autori: Bojan BeĹĄkovnik
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28237

Advanced oxidation processes (AOPs) are used with high efficiency in wastewater treatment due to the formation of hydroxyl radicals with high oxidation capacity. However, there exists many different variables which affect the efficiency of theses processes as it affects the amount of hydroxyl radicals formed; such as reaction time, pH, temperature, reactant concentrations and catalyst amount. In this study, the removal of 2-chlorophenol (2-CP) and 2,4-dichlorophenol (2,4-DCP), which are highly t...
Autori: Aysun Altikat
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28251

The solar energy received by the atmosphere of the Earth is universally distributed, which constitutes the atmospheric dynamics. The changes observed in the climate of the Earth are due to solar output variations. Some detailed reviews have accounted for the influence of solar activities on the climate using sunspot number derived from peak Sun hours, but has gaps in analyzing critical statistical background information, seasonal, latitudinal and solar activity year validation. A number of st...
Autori: Chukwuma Moses Anoruo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28260

An experimental inquest was performed to quantify the turbulent flow characteristics near the eroded region of an artificial sidewall bank at three different flow depths, and a comparison study is made between before and after erosion for two Reynolds numbers. Instantaneous flow velocities were taken with an acoustic Doppler velocimeter (ADV) at near bank of the vertical side wall. The mean flows and other turbulence quantities such as Reynolds shear stress, turbulent intensities, and turbulent ...
Autori: Krishnendu Barman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28264

Tourist cities are facing an ecological crisis due to population boom, pollution and environmental damage. To solve the crisis, this paper attempts to make an accurate evaluation of ecological carrying capacity of tourist cities, identify the factors affecting the ecosustainability of such cities, and prepare a feasible solution to these factors. Specifically, the tourism ecological footprint theory was introduced into the evaluation of sustainable tourism development in tourist areas based on S...
Autori: Bowen Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28269

In this paper, we propose innovative solutions for reusing an inactive offshore gas platform and its associated infrastructures as a scientific research hub, where an integrated energy system and innovative environmental monitoring methods are envisaged. To this end, the Azalea A platform, located in the northern Adriatic Sea, is considered a good pilot site. This study analyzes the engineering solutions on Azalea A for the combined production of solar and wind energy coupled with hydrogen produ...
Autori: Ilaria Antoncecchi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28284

Space exploration requires reliable, rapid, significant and safe methods for preventing, monitoring and controlling biocontamination risk in water loops and humid areas in manned Space habitats. Water is one of the most important resources of our everyday life. Its microbiological control in houses, public water dispensers and special conditions (e.g.: epidemics, catastrophes, isolation) is crucial. The presented solution is automated, compact and portable, and above all “integrated&rdquo...
Autori: Vincenzo Guarnieri
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28298

Biomethane is incentivized in Italy and in many other European countries as a substitute fuel for transport, in order to reduce fossil fuel and cut CO2 emissions. In Italy, Certificato di Immissione in Consumo (CIC) is actually sustaining biomethane production, charging petrochemical companies who need to cover their obligation quotes. Actually, biomethane production has to fulfil sustainability requirements in order to be entitled to get CIC. Sustainability principles are, among others, the typ...
Autori: Ivana Moscato
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28305

A significant reduction in nitrogen (N) losses from agricultural fields will make a positive impact on the environment. Managing nitrogen for the optimum application provides economic benefits as well as environmental protection. This study presents a model that was developed to determine the optimum ratio of N to yield based on N sensor indices in winter wheat. A quadratic polynomial model was used to characterize the relationship between N and yield for the optimum N rate. The N was applied t...
Autori: Uğur Yegül
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28317

The basic purpose of a hospital is to provide a cure to the ailing patients. Since the patients are already suffering from ailments, the hospital must be a place for comfort and mental peace. Indoor Environmental Quality plays a vital role in maintaining that comfort. The hospital building must be designed on the standards to provide the required thermal comfort. If the building is already built and operational, retrofitting techniques are used to maintain the standard values of indoor environm...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28325

In this paper, seawater heavy metal concentrations (Al, As, Cu, Ba, Zn, Fe, Cd, Co, Cr, Pb, Mn, Mo and Ni) measured by ICP-OES and water quality parameters (NH4-N, NO3-, N, NO3, PO4-P, PO4-3, suspended solids, temperature, conductivity, pH and dissolved oxygen) were evaluated in Izmit Bay (The Marmara Sea). The study was carried out seasonally between December 2016 and September 2017 at four separate sampling stations. The mean concentrations of heavy metals in mg L-1 were: Al: 0.074, As: 0.020...
Autori: Arzu Morkoyunlu Yuce
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28333

Optimal evacuation routes are crucial to protect workers’ safety when accidental leakage of toxic gas occurs in chemical plants. However, the majority of route optimization focuses on the transport field and few on the evacuation routing optimization in chemical plants. This paper proposes a dynamic evacuation routing optimization method for chemical plants under toxic gas release scenarios. From the complete accident scenario set (CASS) built with wind fields and leakage sources, the leak...
Autori: Ying Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28336

Transport networks, including highways, have many negative ecological impacts, such as habitat loss and landscape fragmentation. One of the most consicuous negative effects is wildlife vehicle collision (WVC). The basic aims of this study, conducted on the KÄąrÄąkkale-ÇankÄąrÄą Highway, Turkey, are the following: i) identifying locations of WVC events, ii) modeling the effects of landscape pattern and traffic characteristics on WVC and iii) proposing a solution to mitigate WVC. In the st...
Autori: Ali Uğur Özcan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28337

The paper analyses the Romanian consumer’s behavior concerning the use of electric scooters for transport. The aim of the study is to investigate Romanian youths’ intentions regarding the use of electric scooters in the development of a sustainable behavior. The present article is based on a quantitative research, coordinated by the authors, conducted among young participants from Romania. A questionnaire was created using a set of items measured on a five-point Likert scale, on the...
Autori: Ana-Maria Ionescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28338

The simple way to deal with obnoxious hexavalent chromium is to reduce it to its trivalent form, which is comparatively less toxic. In this article, Cr(VI) was reduced to Cr(III) using hydrazine. The effect of various process parameters such as molar ratios of Cr(VI) to N2H4, the temperature of the reaction, and the environmental chemistry of solution on the reduction kinetics have been evaluated. Experiments demonstrate an order of three for the reaction. The reaction was first order with resp...
Autori: Bharti Verma
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28348