Liquid petroleum fuel products such as High Speed Diesel (HSD), Superior Kerosene Oil (SKO), Motor Sprit (MS) are stored in floating roof tanks under atmospheric conditions. The Storage tanks are provided with fittings like rimseals, gauge float wells,sample ports, deck drains and access hatches and becomes the sources of hydrocarbon vapour emissions released to the atmosphere. The net throughput and the annual turnovers of the fuel products and annual average meteorological conditions were cons...
Autori: Bandari Chakradhar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25117

AbstractAcademics have had numerous responsibilities during the centuries. However, now with global climate changes and the attendant, looming crises, it is increasingly crucial that administrators, faculty members, graduate, undergraduate students, staff members and alumni work together with governmental, non-governmental and industrial members in envisioning societies that are truly sustainable. The visions must then be effectively and efficiently implemented in numerous locations throughout t...
Autori: Donald Huisingh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25149

AbstractThis paper reviews some practical aspects of the application of algal biomass for the biosorption of heavy metals from wastewater. The ability of different algal species to remove metals varies with algal group and morphology, with the speciation of specific metals and their competition with others in wastewater, and with environmental or process factors. The scattered literature on the uptake of heavy metals by both living and dead algal biomass - both macroalgae and immobilized microal...
Autori: Loredana Branza, Maria Gavrilescu, Matthew J. Dring
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25133

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

AbstractMicrobial flora is an indicator of the environmental potential of allowing the air-transmitting infections. The paper presents the determination of micro-flora from public indoor spaces and hospital wards in an urban zone. There were used the following sampling and insemination methods: harvesting by sedimentation (Koch method) and harvesting by aspiration, filtration methods, barbotage method, impact method, electro-precipitation method and biotest Hycon. Air micro-flora determinations ...
Autori: Capatina Camelia, Cristinel Racoceanu, Gheorghe Lazăr
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25139

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

This study presents an overview of the current activities and results undertaken within the CEEX SIWMANET project dealing with an assessment of the actual challenges for Integrated Water Resources Management (IWRM) implementation in Romania,seen especially in relation with the R&D system and the need to develop especially the cooperation, training and participatory processes that are required for actual implementation in which the universities may play an important role in terms of catalyst ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25150

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

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

Contain all the articles from this issueConsiderations concerning ecological footprint of RomaniaNicolae Peiu, Matei MacoveanuEffects of some industrial wastes on different plant species in hydroponics experimentsRuxandra Bodarlau, Carmen-Alice Teaca, Valentin I.Popa The pollution index, a new technical tool in water quality assessmentMihai Nicu, Marcel Perjoiu Solid waste management in pulp productionDan Gavrilescu Curricular development perspectives: education for sustainabledevelopmentCarmen ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25174

Contain all the articles from this issueICEEM /02 PLENARY SESSION:"Environmental Engineering and Management in the Context of Sustainable Development"Design for sustainability (D4S): towards advanced product conceptsHan Brezet, Sacha SilvesterICEEM/02 - ENVIRONMENTAL ENGINEERING SECTION"Water and Wastewater Treatment Technologies"Complex approach to the problem of persistent organic pollutants degradation in water environmentVictor Covaliov, Olga Covaliova, Angela Cincilei, Gilles Mailhot, Pasca...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25176

Contain all the articles from this issueLignin in crop cultivations and bioremediationAlfred Abaecherli, Valentin I. PopaMaterials for intermediate-temperature solid oxide fuel cells and for proton exchange membrane fuel cellsAnnemarie Huijser, Joop SchoonmanAre interfacial biocatalysts important tools for nonpolluting technologies? 2. Immobilization of lipases and their  representative applications Brindusa Dragoi, Emil DumitriuUASB treatment of fruit canning wastewater: pilot-scale invest...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25180

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

AbstractFrom a traditional market economy perspective, the productivity attained when water and land is used for acequias is much lower than the productivity achieved when applying these same resources to urban and industrial uses. An analysis of key stakeholders has indicated that there are cultural and environmental attributes of acequia agriculture landscapes that are not captured in the market-assigned value of acequias. This analysis revealed the motivations behind the value placed on acequ...
Autori: Joseph Ulibarri, Steven Archambault
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25212

AbstractThe paper presents original results concerning concentrations of eight heavy metals in soils adjacent to two improperly built municipal waste deposits located in Eforie Sud and Techirghiol, Constanta County, Romania. Measurements have been done on surface and depth soils, during April-October 2006. The applied analytical technique for metal determination was flame atomic absorption spectrometry (FAAS). The mean measured values ranged as follows (in mg/kg dry weight): Cd: 0.09 - 0.15; Co:...
Autori: , Elisabeta Chirilă, Narcisa Elena Ilie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25213

AbstractThe removal of formasine fines particles from water by precipitation with polyelectrolyte and surfactant complex of Polyacrylamide (industrial product Praestol 611 made by Degussa) and Sodium Lauryl Sulphate (SLS) was experimentally studied. Calcium oxide was added to initiate precipitation of the polyelectrolyte complex together with the fines particles. The experiments were carried out with complexes having the surfactants concentration higher then the critical aggregation concentratio...
Autori: Cristina Costache, Gabriel Dabija, Mihaela Mihai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25238

AbstractThe comparative study on reactive extraction of p-hydroxybenzoic acid with Amberlite LA-2 and D2EHPA in two solvents with different polarity (n-heptane and dichloromethane) indicated that the extractant type and solvent polarity control the extraction mechanism. Thus, the reactive extraction with Amberlite LA-2 occurs by means of the interfacial formation of an aminic adduct with three extractant molecules in low-polar solvent, or of an salt with one extractant molecule in higher polar s...
Autori: Anca-Irina Galaction, Dan Caşcaval, Maria Cămăruţ
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25250

AbstractThe aim of this work was to study the content of Fe, Mn, Zn and Pb in the mixtures which contain volatile oil between othercomponents, obtained after the Soxhlet extraction or maceration of the samples (different organs of garden flowers - blue hyacinthand chrysanthemum). The blue hyacinth is a bulbous perennial herb in the Lilliaceae family, grown for its showy and fragrantspringtime flower display. Garden chrysanthemums are tender perennials in the Asteraceae family in double-flowered ...
Autori: , Simona Dobrinas, Viorica Popescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25294

AbstractThe purpose of this study was to investigate the immobilization of denitrifying bacteria on microbial cellulose (MC) for biological denitrification. A novel denitrifying bacterium, Pseudomonas stutzeri, was immobilized in microbial cellulose and introduced into an up flow packed bed reactor in order to remove nitrate from synthetic influent. The MC presented the high biomass concentration throughout the experiment, achieving 3.4 mg biomass/g support. The efficiency of the system for deni...
Autori: Abbas Rezaee, Hatam Godini, Hossein Bakhtou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25302

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

AbstractPulp and paper mills generate various quantities of energy-rich biomass as wastes, depending on technological level, pulp and paper grades and wood quality. These wastes are produced in all stages of the process: wood preparation, pulp and paper manufacture, chemical recovery, recycled paper processing, waste water treatment. Energy recovery from wastes of different origin has become a generally accepted alternative to their disposal. Pulp and paper industry expresses an interest in adap...
Autori: Dan Gavrilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25307

AbstractThe paper proposes a solution for life quality improvement by changing the individual’s mentality and creating a sustainable behavior. The solution consists of the development of a psycho-behavioral pattern starting from the Gorgon experiences. The latter are hurtful experiences in the individual’s life the effect of which is a complete or partial emotional components blockage. The hindrance of these components performance affects the individual’s behavior, placing him or her in a ...
Autori: Brindusa Robu, , Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25323

AbstractSince public concerns about the environmental issues have increased, several universities all over the world have been establishing environmental engineering programs. Environmental engineering programs in Iran at graduate level have been developed since 1990. At the present time, there are ten universities are presenting environmental engineering programs at graduate levels. The environmental engineering education systems of almost all Iran universities are quite traditional. As the env...
Autori: Ahmad Tahershamsi, , Reza Maknoon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25324

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

AbstractTwo non-functionalized hypercrosslinked polymeric resins type Macronet (MN 202 and MN 250) were employed to remove nhexane vapors from gas phase. A comparison of the equilibrium behavior of these hypercrosslinked resins and a bituminous granular activated carbon was made. The initial n-hexane concentration in the air stream ranged from 2100 to 4500 ppm and the adsorption temperatures were 30oC, 40oC and 50oC. The results showed that the MN 250 presents the higher adsorption capacities of...
Autori: Adela Marilena Buburuzan Haleta, Cezar Catrinescu, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25341

AbstractTitanium alloys show attractive properties for biomedical applications where the most important factors are biocompatibility, corrosion resistance, low modulus of elasticity, very good strength-to-weight ratio, reasonable formability and osseointegration. The aim of present study was to evaluate the electrochemical behaviour of Ti6Al7Nb alloy in Ringer’s solution of different pH. This evaluation was carried out through the analysis of the potentiodynamic polarization curves, and electr...
Autori: Daniel Mareci, Julia Claudia Mirza Rosca, Marina Garcia Falcon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25363

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

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

Abstract Based on qualitative research conducted on teams of Romanian students in Engineering and Management that participated in transnational teams within the framework of an international simulation program on global technologies for sustainable development, specific features in relation with the development of entrepreneurship capacity (values, skills competencies) were identified and examined. It was found that specific cultural biases influenced the way the Romanian students approached var...
Autori: Aida Carmen Hutu, Silvia Avasilcăi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25384

AbstractThe purpose of this study is to analyze the recycling potential of printing papers, which are obtained by two different filler loading processes: conventional loading by direct addition of calcium carbonate to cellulose fiber suspension and in-situ loading by precipitating calcium carbonate within cell wall and lumen of pulp fibres. In order to evidence the influences of the both filler content and loading method, a reference sample for recycling was obtained without filler, but using th...
Autori: Maria Ciobanu, Elena Bobu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25386

Abstract This paper presents the preliminary results of photocatalytic oxidation of humic acid from water using two types of catalysts, i.e., TiO2 and Ag-doped TiO2 modified zeolite (TMZ and Ag-TMZ). TMZ and Ag-TMZ, with zeolite granulation of 315-500 ?Źm was synthesized by sol-gel method, and the morphology and composition of the unmodified/modified zeolite were characterized by BET (Brunauer–Emmet–Teller) method, X-ray Diffraction (XRD), scanning electron microscopy (SEM) and energy dis...
Autori: Cornelia Ratiu, Carmen Lazau, Paula Sfirloaga, Corina Orha, Daniela Sonea, Stefan Novaconi, Florica Manea, Georgeta Burtica, Ioan Grozescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25397

Abstract A new type of wire-cylinder plasma reactor, in which air flow shapes into gas torches is developed. The decomposition performance of toluene in contaminated air flow induced by pulsed corona discharge in the reactor is investigated experimentally under atmosphere pressure and room temperature. It is found that the decomposition efficiency is affected dramatically by air introduction way, and the ejection stimulates the decomposition of toluene compared with the conventional method. T...
Autori: Zhihui Xie, Lingen Chen, Fengrui Sun, Qizheng Ye
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25402

Abstract Fine particulate matter and ground-level ozone are now generally recognized as the most significant in terms of health impacts. This study shows that concentrations of particulate matter up to 10 microns in diameter (PM10) in Suceava city exceeded EU limits set to protect human health during 2004-2007. In order to design effective PM10 air quality management programmes, it is essential to identify the sources affecting PM10 background levels. For this, PM10 data series were analyzed ...
Autori: Lacramioara Gina Ursul, , Doina Carmen Manciuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25409

Abstract The preparation of microspheres containing chitosan, sodium alginate and ibuprofen and the pH dependent drug release were investigated. The microspheres were prepared by two experimental routes: the first one starting with a chitosan/ibuprofen core subsequently coated by an alginate shell (S1) and the second one based on an alginate/ibuprofen core, later coated by a chitosan layer (S2). The physical-chemical characterization was done by using Dynamic Light Scattering (DLS), Atomic Fo...
Autori: Luminiţa Elena Balău, Nicolae Aelenei, Marcel Ionel Popa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25412

Abstract Phytoremediation is an eco-friendly, cost effective, in situ treatment technology. In the present research study, phytoremediation technology has been employed for remediation of radionuclides namely 137Cs and 90Sr by using living green plant Catharanthus roseus. C. roseus plants were exposed to different activity levels of 137Cs and 90Sr in aquatic condition to assess the efficiency of plants for remediation of radionuclides. C. roseus plants have been found to remediate 70%, 52% an...
Autori: Singh Anamika, Susan Eapen, Madhusudan H. Fulekar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25417

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

Abstract The aim of this study is to investigate the electrochemical behavior of a three casting non-precious dental alloys: Vera PDI (Co-Cr based), Heraenium (Ni-Cr based) and NPG+2 (Cu-Al based) three test solutions: artificial saliva (AFNOR, pH = 8), acidified saliva (pH = 2.5) and fluoridated acidified saliva (1000 ppm F-, pH = 2.5). Open circuit potential (EOC) measurement; potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) are the electrochemical proce...
Autori: Daniel Mareci, Daniel Sutiman, Adrian Cailean, Julia Claudia Mirza Rosca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25435

Abstract The flotation tailing pond Bozinta is located at 5 Km West from Baia Mare town. It is closed and is preparing for ecological reclaiming. Preliminary investigations have been made on the meteorological and climatologic indicators of the site. The temperature, air relative humidity, the wind speed, the rain values and the soil temperature have been measured during the vegetation period of 2008 year. The air temperature on the tailing pond is always 1?ˇ2 0C higher than the values regist...
Autori: Vasile Oros, Mirela Coman, Monica Marian, Leonard G. Mihaly, Anca Mihaly
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25452

Abstract The paper presents new studies about the removal efficiency of the biochemical treatment process of the Municipal Wastewater Treatment Plant from Constanta city, during 2008. Influent and effluent samples of biochemical treatment stage were collected and ammonium concentration, chemical oxygen demand (CODCr) and biochemical oxygen demand in five days (BOD5) were measured, aiming to study the evolution of the removal efficiency, during 2008. Additional analyses have been performed in ...
Autori: Elisabeta Chirilă, Camelia Draghici, Adriana Puhacel
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25458

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

Abstract In order to improve the photo-efficiency of the electronic process as well as the response into the visible part of the spectrum, TiO2 doping with heavy metal (cadmium, cooper and nickel) have been employed. The objectives of this work are: (a) to prepare doped Me(Cd, Cu, Ni) TiO2 by doctor blade (DB) and spray pyrolysis deposition (SPD) techniques, (b) to characterize the catalysts, (c) to study and compare the activity of the Cd-TiO2, Cu-TiO2 and Ni-TiO2 catalysts on methyl orange ...
Autori: Luminita Andronic, Bianca Hristache, Alexandru Enesca, Anca Duta, Maria Visa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25480

Abstract The process of quality assurance in the study of foreign languages in Technical Higher Education builds and increases employers’ confidence in the graduates. Thus, acquiring technical and communicative competences becomes a â€?must?? when entering a competitive job market. The qualitative results of our research have revealed some of the factors sustaining students’ excellence performance in the study of foreign languages. In conclusion, the elaboration and implementation o...
Autori: Anca Greculescu, Gheorghe Solomon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25486

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

Abstract Phenols and chlorophenols are contaminants in soils, sediments, surface waters and groundwater, largely because of their worldwide utilization in the last 50 years as wood preservatives and general biocides in industry and agriculture. The toxicity of chlorophenols and their persistence in the environment require advanced treatment techniques for their removal. This study presents the results of a comparative evaluation of the adsorption of phenol and 4-chlorophenol from aqueous sol...
Autori: , Cezar Catrinescu, Roxana Elena Apreutesei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25497

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

Abstract The work studies the orientations regarding the recycling of the products from the industry of auto-vehicles parts and components, orientations that can provide solutions which permit to the enterprises producing auto components the efficient management of the related products and services during the whole life cycle of the products, from the conception phase to that of recycling. The new way of approaching the development of metallic auto products promoted in Romania will contribut...
Autori: Petrica Corabieru, Stefan Velicu, Dumitru Zait, Anisoara Corabieru, Dan Dragos Vasilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25524

Abstract In the textile finishing and dyeing industries, the total volume of water consumed is around 150 millions tons/year, and thus very large quantities of water are processed and produced as wastewater by textile plants. Quality indicators of textile wastewaters, like BOD and COD, have values which, in some cases, exceed 5 times the maximum concentration value (allowed by the national quality standards). One of the greatest concerns in wastewater treatment of a textile effluent is the co...
Autori: Daniela Cailean, , Florin Brinza
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25538

Abstract The Integrated Water Resources Management (IWRM) concept evolved over time, the focus on river basin management, consultation and coordination with all water users, and the use of the â€?polluter pays?? principle being all included in the EU Water Framework Directive (EC Directive, 2000), which forms the basis of water management undertaken in Europe. The role and significance of water resources for sustainable development, as well as the water crisis experienced nowadays are ...
Autori: , Claudia Cojocariu, Corina - Petronela Musteret, Ioana Gabriela Dascalescu, Ionut Caraene
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25559

Abstract Withania frutescens plant from the south-western Morocco was used as an environmentally friendly material for the removal of As(V) ions from aqueous solutions. This work presents the characteristics of the adsorption and the desorption processes of As(V) using the dried W. frutescens plant as an environmentally friendly adsorbent. The mass of the adsorbent, the As(V) concentration, the contact time and the pH of the tested aqueous solutions were used as controlled variable parameters...
Autori: Mohamed Chiban, Gabriela Lehutu, Fouad Sinan, Gabriela Carja
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25568

Abstract Some doses of compost obtained in farms were tested during 2004-2006, comparative to chemical fertilization, at S.C. Soimul S.R.L. from Vacareni Plain, Jijila village, Tulcea district. It was found out that fertilization with 30 t/ha of compost had established the highest production of wheat Dropia variety, 6512 kg/ha, with 40.7% higher than unfertilized variant and 16.8% higher than N160P80K80 fertilized variant. The highest protein content of 15.21% has been obtained in the case o...
Autori: Mihail Axinte, Teodor Robu, Marius Zaharia, Costel Moglan, Carmen Ghitau
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25575

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

Abstract The paper tackles the issue of ecological tourism in Romania?s North-East Region. This region offers some opportunities such as low costs for tourist operators and highly qualified local hosting personnel that can make it attractive. The concept of sustainable development is presented and its features are discussed in the context of tourism. Ecological education is presented as a collateral effect that naturally derives from developing a sustainable tourism, especially in Romania?s N...
Autori: Brindusa Robu, Carmen Cătălina Ioan, Matei Macoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25597

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

Abstract A method based on measuring substrate depletion rate was developed to evaluate the denitrifying activity of activated sludge in suspension and in biofilm form in anoxic serum flasks. The adapted activated sludge inoculum was grown as biofilm in an anoxic rotating biological contactor (RBC). Acetate was used as external carbon source to obtain a carbon to nitrogen ratio (C/N) of 2. The results showed that the specific activity of cells in biofilm form was higher than in planktonic for...
Autori: Elba Vivanco, Juan Carlos Ruiz, Paola Poirrier, Rolando Chamy, Yves Lesty
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25617

Abstract The chlorine is the reagent of the widest application in disinfection processes of drinking water but it shows the short coming of reacting with the organic substances therein giving trihalomethanes with possible cancerous action. For this reason the tendency is noticed of replacing chlorine by reagents with higher disinfecting properties and lack of final toxic products. The chlorine dioxide could be used to this purpose. A comparative study on the effects obtained by treating the P...
Autori: Corneliu Oniscu, Dan George Popovici
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25620

Abstract The aim of this work was the evaluation of the denitrification potential of a consortium of activated sludge adapted to anoxic conditions. As the carbon source is the main parameter influencing the denitrification process, in the first stage three carbon sources (acetate, citrate and glucose) were assayed in batch activity tests. The highest denitrification efficiency was ttained with acetate, being nitrate and nitrite completely reduced. The adapted sludge was then used as a potent...
Autori: Joana Azeredo, Pilar Teixeira, Rosario Oliveira, Zelia Fernandes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25638

Abstract A method based on measuring substrate depletion rate was developed to evaluate the denitrifying activity of activated sludge in suspension and in biofilm form in anoxic serum flasks. The adapted activated sludge inoculum was grown as biofilm in an anoxic rotating biological contactor (RBC). Acetate was used as external carbon source to obtain a carbon to nitrogen ratio (C/N) of 2. The results showed that the specific activity of cells in biofilm form was higher than in planktonic for...
Autori: Manuel Mota, Pilar Teixeira, Rosario Oliveira, Susana Cortez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25639

? STUDY OF BIODIESEL PRODUCTION FROM OILSEED PLANTS II. EVALUATION OF BIODISEL PRODUCTION FROM SOME CULTIVARS OF RAPES ? STUDY OF BIODIESEL PRODUCTION FROM OILSEED PLANTS I. EVALUATION OF THE GENETIC SIMILARITY OF SOME Brassica Napus CULTIVARS USING RAPD MARKERS ? STRUCTURAL CHARACTERIZATION AND IN VITRO CYTOTOXIC POTENTIAL OF COAL DUST IN A ROMANIAN POWER PLANT ? MUNICIPAL SOLID WASTE MANAGEMENT IN BENGHAZI (LIBYA): CURRENT PRACTICES AND CHALLENGES ? COMPARATIVE ENVIRONM...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25661

? 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

The removal efficiency of p-xylene from gas stream was experimentally investigated in a dielectric barrier discharge (DBD) reactor, which was combined with catalyst, MnO2/Al2O3 pellets, in the discharging and the afterglow area, respectively. The CO2 selectivity of the two kinds of structure was also discussed. The results showed that in both the situation, the synergetic removal efficiency of p-xylene by the DBD-catalyst hybrid system increased with increasing the discharge power and decreasing...
Autori: Hongxia Liu, Yun Liuhttp://www.ecozone.ro/reviste.php?RID=25674

Rhizobag incubation experiments were conducted to study microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), soil respiration and enzyme activity (urease and phosphatase) in the rhizosphere soil of three different wetland plants and its influence on the removal of total organic carbon (TOC) and total nitrogen (TN). MBC, MBN, soil respiration and enzyme activity were higher in the rhizosphere than in the non-rhizosphere soil of the wetland plants. Microbial activity in the rhizospher...
Autori: Defu Xu, Hua Fang, Xianghua Xu, Xiaoli Zhao, Yingxue Lihttp://www.ecozone.ro/reviste.php?RID=25679

A chlorpyrifos-degrading strain of Stenotrophomonas acidaminiphila, lux-β was chosen for research object, and the survival and chlorpyrifos-degrading activity of strain lux-β in the soil with different treatments have been investigated in this study, so as to provide technique support for monitoring the colonization and degrading activity of chlorpyrifos-degrading bacteria in natural environment. The result indicated that the quantity of lux-β in the soil rose first and decreased ...
Autori: Dao-Sheng Wang, Ri-Mao Hua, Xin-Yun Tang, Rui-Xue Li, Jun Zhang, Yun-Lu Wanghttp://www.ecozone.ro/reviste.php?RID=25684

Acidithiobacillus ferrooxidans plays an important role in the pyrite oxidation process and has been widely studied in order to determine the kinetics of the reactions, but the details of the oxidation processes on the surface of pyrite keeps poorly known. In this study, the bio-oxidation process of pyrite by Acidithiobacillus ferrooxidans was studied by comparing with abiotic oxidation by Fe3+. The attachment of Acidithiobacillus ferrooxidans on pyrite surface was found by using Scanning Electro...
Autori: Lei Jiang, Huiqun Yang, Yuruo Tao, Jinyan Yanghttp://www.ecozone.ro/reviste.php?RID=25686

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

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

This study investigated the effectiveness of using anaerobic effluent as a nutrient supplement for cultivation of green algae Chlorella sp. Different concentration of 0%, 15%, 30%, 45%, 60%, 75%, 90% and 100% which were raw (group �r�) as well as autoclaved (group �a�) were applied to the anaerobic effluent and algae growth. They were compared in terms of growth rate and final algae biomass production. In the initial cultivation days, slower growth rates with an increased anaerobic efflu...
Autori: Yubi Chen, Renjie Dong, Gaojun Peng, Zhu Yi, Shuhao Huo, Yupeng Liu, Changle Panghttp://www.ecozone.ro/reviste.php?RID=25701

Fuel injection system, intake system and the geometric shape of combustion chamber are the three key factors to the fuel-air mixture and combustion process for diesel engine. long with the need of high power density in diesel engine, the pressure of intake is higher increasingly. Together with the effect of high pressure fuel injection, the fuel-air mixture and combustion process is hard to spread as usual. In this circumstance, the performance of power, heat efficiency and emission in diesel en...
Autori: Shang Yong, Liu Fu-Shui, Li Xiang-Ronghttp://www.ecozone.ro/reviste.php?RID=25704

The combination method of culture and PCR-DGGE technique is applied for a preliminary study of the diversity of the different contaminated soil. The bacteria DNA of the soil was extracted and used for PCR-DGGE analysis. The results show the plant height, total weight and florescence of two tested plant, inhibited by adding phenol or hexadecane in the soil. There are significant differences between test groups which add contaminants and control group, and no significant differences between test g...
Autori: Hai-Juan Ma, Guang-Ming Li, Ya-Lei Zhang, Ping Fanghttp://www.ecozone.ro/reviste.php?RID=25706

Semi-dry FGD with fabric filter has been extensively studied in recent years. After a series of industrial tests on 300MW boiler with semi-dry FGD and fabric filter, some operation notes were obtained. The test results show that CFB-FGD with fabric filter can be run longer and stable, and its actual performance is even higher than the design parameters. Moreover, the pressure drop of fabric filter after CFB-FGD is 600~800Pa (higher than normal). The fabric filter, which contributes to the desulf...
Autori: Tong Li, Han Yi, Han Xu, Reti Hai, Wang Wenxinghttp://www.ecozone.ro/reviste.php?RID=25716

Abstract:A specific topical issue both for small hydropower plants and wind turbines refers to the discrepancy between the relatively lowspeed of the water turbine/wind rotor and relatively high speed of the electric generator: the turbine/rotor has higher performancesat lower speeds, while the generator performances are increasing with the speed. Usually, this problem can be solved connecting aproper speed increaser between the turbine (increaser input) and generator (increaser output). Besides...
Autori: Codruta Jaliu, Oliver Climescu, Radu Saulescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25732

Abstract:A comparative analysis is drawn on the energetic responses numerically simulated for Brasov, Romania location, delivered bytwo mono-axial pseudo-equatorial STCs (solar thermal collectors): a flat plate STC and a STC with heat pipes; the two systemsare destined for future implementation on Transilvania University Campus. Accordingly, two tracking programs are consideredfor the diurnal motion: a) of 1h constant duration steps, for school courses interval (September-June) and b) 1-step pro...
Autori: Maria M. Vatasescu, Veronica E. Dombi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25740

Abstract:For the optimal working of the concentrating photovoltaic systems (CPV), these are usually tracked, and the accuracy required infollowing the sun path is much higher than in non-concentrating system. The paper focuses on the synthesis of the optimal steptracking program of an azimuth tracking system, used for accurate tracking of a CPV system. The paper presents the synthesismodelling algorithm and the numerical simulations for a CPV system, orientated with an azimuth tracking system, i...
Autori: Ioana Sinziana Hermenean, Ion Visa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25748

Abstract:The study was conducted to evaluate the concentration variation of heavy metals in milk collected from two different groups ofsources: milk collecting centers and dairy farms. Also, their incidence in milk products, as pasteurized milk, butter milk, yogurt,cream, cheese, hard cheese was determined in the NE Romania (Moldavia).The analytical results revealed that the milk samples from the collecting centers had higher levels than the samples from the dairyfarms of Pb (2.90 to 3.45 vs. 1....
Autori: Andrei - Cristian Grădinaru, Gheorghe Solcan, Ovidiu Popescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25776

Abnstract:In recent years, solar receivers have been employed in several applications where high temperature fluids are involved, such aspower plants and solar thermal reactor. The possible presence of high temperature gradients could determine reduced receiverefficiency and a short life of the material. Thermal and fluid dynamic analysis of the receiver allows to highlight possible presenceof temperature gradients and to evaluate their values and the more critical zone of the material. Compress...
Autori: Alina Adriana Minea, Oronzio Manca, Salvatore Tamburrino, Sergio Nardini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25779

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:Bioremediation is considered as one of the prominent and cost-effective cleanup technology to treat oily sludge disposals. In the present investigation anaerobic bioremediation of petroleum based oily sludge was studied in a slurry reactor by applying different experimental strategies viz., bioaugmentation, biostimulation and co-substrate addition. Total petroleum hydrocarbons (TPH) present in the oily sludge before and after degradation was extracted using soxhlet extraction procedure....
Autori: Asha Juwarkar, Kuppam Chandrasekhar, Mamilla Prathima Devi, Motakatla Venkateswar Reddy, Ponnapalli Nageswara Sarma, Srinivasula Reddy Venkata Mohan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25794

Abstract:Experimental research evaluated the possibilities of air treatment efficiency of a cylindrically shaped bio-charge, namely straw, toremove volatile organic compounds from the air. As determined during experiments, the air treatment efficiency of the straw biochargefor acetone removal reached 97.3%, while for butanol removal the efficiency was 86.0%. It has been determined that, withvolatile organic compound concentrations increasing biological air treatment efficiency is decreasing as h...
Autori: Alvydas Zagorskis, Petras Vaitiekunas, Pranas Baltrenas, Raimondas Leopoldas Idzelis,
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25790

Abstract:The effect of organic carbon loadings (OCLs) on NH4+-N and Mn2+ removal was investigated using a novel approach of biological aerated filter (BAF) for drinking water treatment system. Three different OCLs of 0.2, 0.5 and 1.0 kg COD/m3.d were loaded into BAF which was operated in batch-wise at 24 h hydraulic retention time. The experiments resulted in higher COD, NH4+-N and Mn2+ removal percentages at OCL of 1.0 kg COD/m3.d with removal of 97.1%, 97.4% and 94.7%, respectively. The +-N ef...
Autori: Hassimi Abu Hasan, Noorhisham Tan Kofli, Siti Kartom Kamarudin, Siti Rozaimah Sheikh Abdullah
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25808

Agrotourism, a form of tourism that falls within the framework of rural tourism, is based on the tourism taking place on farms with the possibility of doing work with the owners of the farm with this being seen as a leisure activity, educational in nature and of interest to members of many groups. The importance of this kind of tourism resides in the possibility of complementing the income generated from the farm with income produced by the tourism, as well as assuring the conservation of the en...
Autori: Ana-María Campón-Cerro, Antonio Pérez-Díaz, Felipe Leco-Berrocal, José-Manuel Hernández-Mogollón
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25828

An iron(Fe+3) oxide/hydroxide nanoparticles-based agglomerates (AggFe) suspension adsorbent was synthesized for efficient, cost-effective phosphate removal. A strong effect of AggFe concentration and pH level of water containing phosphate on removal efficiency was shown. It was found that phosphate adsorption onto the AggFe suspension may be described by pseudo-secondorder reaction kinetics and the Langmuir isotherm model. The unique adsorption properties of synthesized AggFe adsorbent are demon...
Autori: Grigori Zelmanov, Raphael Semiat
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25829

This paper refers to the post-Darcy free level uniform filtration. The capillary tube fascicle model is applied to this filtration. The theoretical Ch?Šzy coefficient is computed and also experimentally verified for a homogenous and isotropic material, made of glass spheres. The typical features for the free-level post-Darcy filtration (depending on slope) are the lover, critical and higher stages flows....
Autori: Aron Gabor Molnar, Daniel Toacă, Daniel Toma, Iosif Bartha, Nicolae Marcoie, Victor Gabor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25833

The International Conference on Environmental Engineering and Management, ICEEM 2011, at its 6th Edition, represents a scientific event that is dedicated to the promotion and dissemination of the scientific results obtained at national and international level in the fields of environmental engineering, environmental management and sustainability. The event was initiated and organized every 2 years, since 2002, by the Department of Environmental Engineering and Management, Faculty of Chemical Eng...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25846

Infrasound is a sound wave with a range of frequencies below that of human hearing and is a constituent of the environment in which we live. Taking into consideration that infrasound is below the audible range and that its overall effects on the entire human organism are yet unknown, the ambiguity of the phenomenon requires further research. Although infrasound has been analyzed in depth in the past few decades and assumptions have been made regarding experiments on human subjects (with or witho...
Autori: Carmen Cătălina Ioan, Cornelia Ursu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25859

The aquatic species are permanently subjected to various stresses through the ecosystem and the food habit. Elucidating the impact at the cellular level allows us to understand the ways in which the polluting elements and their derivatives can disrupt the metabolism of aquatic organisms triggering apoptosis in individual cells or necrosis affecting groups of neighbouring cells. The aim of this preliminary study is to highlight the influence of the environmental factors on two fish population by ...
Autori: , Camelia Ureche, Dorel Ureche, Gabriel Lazar, Ileana Denisa Nistor, Irina Loredana Ifrim, Iuliana Mihaela Lazar, Marius Stamate, Valentin Nedeff
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25861

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

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

The performances of two types of multi-walled carbon nanotubes-based composite electrodes, i.e., MWCNT-Epoxy (CNTEpoxy) and Natural Zeolite-modified- MWCNT- Epoxy (NZ-CNT-Epoxy) are described in order to use them for electroanalytical application. Both electrodes were synthesized, electrically and electrochemically characterized and tested for the detection of ascorbic acid (AA) in aqueous solutions. The electrochemical characterization using classical potassium ferricyanide method showed a high...
Autori: Adriana Remes, Anamaria Baciu, Elida Ilinoiu, Florica Manea, Joop Schoonman, Stephen J. Picken
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25877

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

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

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

The concept of collaborative management is considered to be one of the most efficient instruments for sustainable development of some areas, which are under anthropic pressure due to the production of solid waste. The paper stands for the necessity of promoting a collaborative management among the main actors involved in an efficient and sustainable urban solid waste management, in the metropolitan area of Bucharest. The present management is mainly based on the strictly economic vision of manag...
Autori: Andrei Schvab, Daniela Zamfir, Gabriel Pascariu, Ioan Ianoş, Loreta Cercleux, Valentina Stoica
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25893

AbstractVegetable waste was used as the fuel of a two-chamber microbial fuel cell (MFC) for simultaneous power recovery and wastedegradation. Effects of ultrasonic pretreatment, organic loadings, anolyte pH adjustment on the MFC performance wereinvestigated. Results showed that higher power generation and organic compounds removal efficiency were achieved in theMFCs with the vegetable waste pretreated with ultrasonication at >1.0W/mL compared to the un-pretreated control. A maximumvoltage of ...
Autori: Kun Tao, Xiangchun Quan, Yanping Quan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25953

AbstractThis paper reports the effects of COD:sulfate ratio on sulfate removal and electricity generation from oil shale retort watertreatment using microbial fuel cells (MFCs). Field-collected retort water was augmented with organics to obtain a range of initialCOD:SO42- ratios (0.5:1 to 2:1), and treated in two different MFC designs (tubular and two-chambered). The two-chamberedMFCs exhibited COD and sulfate removal 1 to 2 orders of magnitude higher than those of the tubular MFCs. The tubular ...
Autori: Ho Il Park, Lian-Shin Lin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25954

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

AbstractThe regional ecological risk assessment of water resources has spatial, nonlinear and stochastic characteristics. GIS technologycan handle large volumes of spatial information, conduct spatial analysis and spatial data management operations. It visuallydisplays the distribution trend of environmental factors and the relationship between topology and regional water ecological riskpattern. This paper presents the five stages of the application of GIS in the regional ecological assessment o...
Autori: Lin Gang Wang, Ning Lian Wang, Xiao BoWu, Ya Qian Zhao, Yin Ge Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25958

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

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

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

AbstractIn this paper integrated network of continuous reactors for the decontamination of gaseous flows in heterogeneouscatalytic gas-liquid-solid – also applicable for bioremediation systems is investigated. For this purpose, duringprocess integration we have identified strategies to develop an optimal system for a variety of well-definedrequirements and to discover ways to ensure cost efficiency to achieve the requirements of sustainable industry in theframe of knowledge-based sustainable eco...
Autori: Maria Gavrilescu, Oana Marlena Penciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25977

AbstractSince contemporary economical development trends are not sustainable, and given the fact that public involvement, educationand training are key to a society that aims toward sustainability, it is obvious that the role of education is to trigger and developchanges in the individual’s values system, behavioral patterns, skills, and attitudes. Providing benchmarks in establishing ageneral framework on education for sustainable development represents a key feature, thus making it possible to...
Autori: Carmen Cătălina Ioan, Maria Ileana Carcea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25979

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

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

AbstractA case-control study was conducted in two Romanian counties (Alba and Cluj) in order to investigate lung cancer risk due toresidential radon exposure. Two hundred and forty-one subjects were included, of which 104 cases and 137 controls. Residentialradon concentrations were monitored using CR-39 track detectors, exposed over a period of at least 6 months. The odds ratioswere estimated by using multivariable logistic regression adjusted for age, sex, smoking status, education and family h...
Autori: Alexandra Cucoş Dinu, Constantin Cosma, Dan Rădulescu, Doina Todea, Dorin Iancu, Ionel Papuc, Loredana Roşca, Mircea Rişteiu, Tiberius Dicu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26011

AbstractWater and its sustainable use is closely connected to developments in other fields, such as industry, agriculture and services,energy, nature conservation and health. The pressures imposed by the higher water demands, quality of discharges and climatechange raise new water challenges which can be overcome only by coordinated efforts of multiple stakeholders throughcooperation and participatory processes.This study presents how public participation – within the context of integrated water...
Autori: Carmen Teodosiu, George Bârjoveanu, Joanne Vinke-de Kruijf
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26039

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

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

AbstractThe objective of this paper is to investigate the effect of expansive soil treatment with Eco-Cement (EC) stabilizer, as beingcomposed of an alternative binder that partly substitutes the Ordinary Portland Cement (OPC). The extended use of EC in soilstabilization will carry several significant environmental benefits. Firstly the by-product resulted from the production of iron in ablast furnace will be reused, that otherwise will be stored on the ground in deposits representing an importa...
Autori: Anghel Stanciu, Irina Lungu, Mircea Aniculăesi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26069

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

AbstractA new approach to environmental protection management is the aerobic microbial digestion of food industry wastewaters byusing those waters as substrate, while the pollutants contained work also as oxygen-vectors. In biotechnology, oxygen masstransfer is a key parameter involved in the design and operation of mixing–sparging bioreactors and it can be analyzed by meansof the oxygen mass transfer coefficient (kLa). The influence of a second liquid phase with higher oxygen affinity (in this ...
Autori: Elena Folescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26097

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

The ELSEDIMA International Conference on “Environmental Legislation, Safety Engineering and Disaster Management” held its 9th edition in 2012. This edition was organized by the “Babeş-Bolyai” University of Cluj-Napoca - Faculty of Environmental Science and Engineering, together with the Ministry of Administration and Interior - General Inspectorate for Emergency Situations, the Disaster Preparedness and Prevention Initiative for South – Eastern Europe and S.C. I...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26102

Abstract Poly(hydroxybutyrate) (PHB) is a biodegradable thermoplastic polyester with very high potential for industrial applications. The properties could be improved by mixing with another polymer, natural or synthetic, such as poly(vinyl alcohol) (PVA). The resulting polymer blends are potentially able to achieve the desired performance for different applications. Biodegradation modifies mechanical, physical and chemical properties of a given material. PHB are degraded by diverse...
Autori: Luiza Jecu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26111

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

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

Abstract Municipal waste landfill leachate results in different stages of waste stabilization and has a negative impact on the environment. When implementing a new policy on waste handling, monitoring landfill leachate should be carried out under conditions of a modern solid waste landfill. The paper discusses the quality of leachate observed in old and recently built landfills in Vilnius - the capital city of Lithuania. The landfills are situated at a distance of 20 kilometres fro...
Autori: Kristina Baziene
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26151

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

AbstractWith global climate change, flood disasters occur frequently and detention basins are facing greater flooding risk. The flood riskassessment of detention basins becomes an important content for the management of detention basins.In this study, the index system of flood risk assessment of detention basins in Huaihe River Basin is established according to thenatural and social properties of detention basins flood disasters. The flood risk assessment methods are proposed based on support ve...
Autori: Junfei Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26172

AbstractMethane production and concentration from six cells were investigated in two landfills in China. Long-term monitoring tests wereconducted to evaluate the methane recovery efficiency of active wells. Results showed that the recovery efficiency of a wellsdistribution simulation method was 75.6% to 83.5%, which was much higher than 50.1% to 53.6% when considering the EPAmethod in the EST (Ecological Sludge Evapotranspiration Technology) cover structure. The recovery efficiency of methane in...
Autori: Qiang Xue
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26174

AbstractSurface soil samples and vegetable samples from the Pearl River Delta, South China were collected and analyzed for 16 USEPApriority polycyclic aromatic hydrocarbons (PAHs). The total concentrations of 16 PAHs in soils ranged from 22.1 to 1256.9 ng/g.Naphthalene, phenanthrene, fluoranthene and benzo(b)fluoranthene were consistently the most prevalent individual PAHs. Theconcentrations of 16 PAHs in vegetables varied from 31.2 to 726.8ng/g. Naphthalene and phenanthrene were the predominant...
Autori: Song Yantun
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26180

AbstractGallinaceous feathers are an abundant solid waste from the poultry processing industries, which poses disposal problems. Akinetic study dealing with the adsorption process of wool reactive dye, Yellow Lanasol 4G (CI Reactive Yellow 39), ongallinaceous (Gallus gallus, Cobb 500) feathers was carried out. The main research goals of this work were to evaluate theviability of using this waste as adsorbent and to study the kinetics of the adsorption process, using a synthetic effluent. Thechar...
Autori: Sónia Adriana Figueiredo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26203

AbstractCurrently one can witness a revolutionary change in teaching/learning strategies and an evolution which should reconsider therelation between educational institutions, teaching staff, and students, on the one hand, and economic agents, public or privatecompanies, firms, and NGOs, on the other. Despite the large amount of research focusing on the entrepreneurial phenomenon,there has been limited focus on the effect of education upon enterprise performance in terms of venture creation and ...
Autori: Gabriela Boldureanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26204

AbstractDespite the Moderate Resolution Imaging Spectrometer (MODIS/Aqua) presently collects data on operational basis, evaluationof its biogeochemical products from standard bio-optical algorithms is scare especially in Arctic waters. The present study isaimed to evaluate several MODIS/Aqua bio-optical algorithms and MODIS/Aqua remote sensing reflectance (Rrs) products inKongsfjorden waters on the western side of Svalbard, Arctic. Data sets consisting of in-situ measurements of radiometric quan...
Autori: Palanisamy Shanmugam
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26220

AbstractThe efficiency of enzymatic hydrolysis of Penicillin G to 6-Aminopenicillanic acid under substrate inhibition has been analyzedfor a bioreactor with mobile bed of immobilized penicillin amidase. The results indicated that the optimum values of temperatureand pH remained the same as for homogeneous hydrolysis using free enzyme. The inhibitory effect induced at higher PenicillinG amount in liquid phase was attenuated by increasing the size of the biocatalyst particles. For this reason, at ...
Autori: Ramona Mihaela Matran
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26224

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

AbstractBased on the measurement at a coastal site in the Yangtze Delta, the temporal variation characteristics of ozone and theinfluences of the precursors (NO, NO2, and CO) and meteorological conditions were analyzed. Also the crop yield loss by ozoneexposure at the site was estimated and discussed. The variation of daytime ozone showed a two-peak pattern during the year with one peak in spring and the other in summer, while the nighttime ozone just presented one peak in spring. The diurnal va...
Autori: Wenpo Shan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26231

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

AbstractWastewater sludges are organic and nutrient-rich materials that could be used to improve soil tilth. However, the land applicationof sludge needs to be properly managed to avoid the detrimental effects on micro and macroorganisms in the soil. Earthwormsare one of the most important soil macroorganisms. Addition of sludge to the soil environment may impact earthworm activity,and in turn, soil productivity and health. In this study, sludge from the canned food industry was added to soil mi...
Autori: Efsun Dindar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26238

AbstractEnergy efficiency in buildings is a key issue in achieving sustainable development. Many decision support methodologies andtools have been developed, mainly based on energy consumption measurements or simulations and rules designed by experts toconstruct Building Energy Management Systems. An extension of this information from raw consumptions to energy efficiency isrequired. In addition, a visual depiction of this information with temporal and spatial resolution, applied to the differen...
Autori: Mark Richard Wilby
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26259

AbstractThe aim of this study is to elaborate a survey on the efficiency of three anti-aging cosmetic formulations by applying FourierTransform Infrared Spectroscopy (FTIR) with Attenuated Total Reflection (ATR) in order to characterize and identify thespecific recognition markers of the active ingredients. FTIR (ATR) spectrometry in specific regions was applied also to theingredients used in these products, depending on their role in the specific cream. Comparing the different composition of th...
Autori: Anca Maria Juncan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26261

AbstractZarshuran As-Au deposit is the major ore deposit in northwest of Iran. Having been exposed to weathering, the accumulatedmining waste is consumed to deteriorate regional soil and water quality. Accordingly, 11 composite surface soil samples werecollected to evaluate the metallic pollution. Mean concentration of elements As, Sb, Hg and Zn were measured to be 234.9, 19.6,24.2 and 476.7 ppm, respectively. In comparison with mean earth crust and local guidelines for agricultural soil, the sa...
Autori: Abdolreza Karbassi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26262

AbstractThe construction industry is one of the main sectors of energy consumption and carbon emissions in China. The new-types ofbuilding materials can be produced by recycling industrial solid wastes which is an effective solution to development of greenbuilding materials and abatement of environmental emissions. In this paper, new-types of bricks made of fly ash (residuesgenerated in coal combustion) and coal gangue (a kind of solid wastes generated in coal mining and coal production) and the...
Autori: Haitao Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26265

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 extent of the problem of the excessive fluoride in drinking water remains an important health issue. In the present work,strong-base anion resins were investigated to assess their sorptive removal capacity of fluoride from water. It was found that theremoval of fluoride was high at natural pH (7) and was improved for increasing contact time and adsorbent dosage. Themaximum sorption of the resin was 13.7 mg/g according to the Langmuir model, namely higher than the values reported in t...
Autori: Mohammad Taghi Samadi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26273

AbstractThe main aim of this study is to evaluate the residents public awareness from water-polluted areas in Tehran city, in terms ofwater quality (in particular nitrate pollution), and to measure their different performance and approaches to this environmentalproblem. For this purpose, district 18 (Yaft Abad, southwest of Tehran) was selected as a case study. A questionnaire wasprepared and distributed randomly among residents of the selected area in May 2011. The data were analyzed statistica...
Autori: Mohammad Mahdi Azadegan, , Reza Maknoon
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26314

AbstractSeed priming has been reported to be a simple technique for enhancing seedling establishment in environment and cropproduction under stressed condition. In this study, we investigated osmo and hydropriming effect in two salt stressed chickpeacultivars. This research monitors the changes in growth factors, proline content, lipid peroxidation and H2O2 scavenging enzymesactivities in osmo (mannitol 4%) and hydro (water) primed plantlets of two salt stressed chickpea cultivars (Arman and Biv...
Autori: Akbar Mostajeran, Fatemeh Khodabakhsh, Rayhaneh Amooaghaie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26315

AbstractThe aim of this study was to evaluate the results of an urban pilot project on separate collection of packaging wastes. The projecthas been performed in a developed and industrialized city of Turkey, Kocaeli with the aim of collecting packaging wastesgenerated in residents, public offices and other business offices. The project was carried out according to packaging wastemanagement plans developed by sub-municipalities in coordination with Kocaeli Metropolitan Municipality. Total monthly...
Autori: İsmail Özbay
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26325

AbstractThe possible recovery of three microelements contained in the sludges resulted after chemical leaching of uranyl ions fromuranium ores was investigated, using four types of zeolites as adsorbents. The variation of the retention degree in time of 3cations: Fe3+, Ti4+ and Ni2+, adsorbed on: ETS-10, ETS-4, ZSM-5 and mordenite was followed. The characteristic adsorptionparameters connected to Langmuir and Freundlich isotherms were also determined. For a given adsorbent, the rate of globalret...
Autori: Alexandru Cecal, Dumitru Gânju, Maria Ignat, Nicoleta Melniciuc-Puica, Petrisor Mugurel Samoila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26327

AbstractThis paper discusses some environmental problems caused by the mine waste from the Copper Mine Bor in Serbia. The CopperMine Bor and the Smelter generated about 2x109 tones of waste materials, located in the vicinity of the Bor. They cover mining,flotation tailings and smelting slag wastes. The existing mine waste have been formed during a hundred-year-old of mining andmetallurgical activities in Bor. Also, new quantities of wastes (up to ten thousand tones) have been produced daily by u...
Autori: Jovica M. Sokolović, Novica Milosević, Rodoljub D. Stanojlović
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26334

AbstractAlgal blooms in reservoirs used for both fish and drinking water production are a major water quality problem. The authorsassessed data gathered from both published literature and from their own field enclosure experiments to analyze the relationshipsof phytoplankton chlorophyll α concentrations with biomass and algal cell count. Experimental data were collected from indoorlocations, field enclosures, and natural water bodies. Under laboratory conditions, where the types of algae an...
Autori: Chang-juan Zang, Chao Lin, Feng Gao, Hong-chuan Pan, Miklas Scholz, Min Wu, Sheng-lan Du, Sui-liang Huang, Yong Guo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26335

AbstractMetal concentrations in plants, soil and sediment were evaluated in the vicinity of a former iron/nickel enriching factory atPogradec, near Ohrid Lake in Albania. Metal levels were significantly higher in soil samples than in the corresponding plants.Iron concentrations in both soil and plants were much higher than the nickel ones. Lower plants (lichens, mosses and fungi) had ahigher uptake and accumulation of nickel, followed by water plants and non-cultivated (wild) plants. Iron levels...
Autori: Dimitrios Bellos, Dimitrios Veros, John M. Halley, Lazaros Symeonidis, Sonila Llupo, Thomas Sawidis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26340

AbstractThe removal of phosphorus by strongly basic anion exchanger was investigated. Removal efficiency increased with contact time,resin mass and initial solute concentration, while temperature showed a reverse effect. Equilibrium data were best fitted ontoLangmuir isotherm model (R2>0.99). Maximum sorption capacity of the resin was 66.22 mg/g, namely significantly higher thevalues reported in the literature. The Freundlich parameter (n = 4.3) and the Langmuir separation factor (RL = 0.067-...
Autori: Abdeltif Amrane, Hamid Reza Ghaffari, Mansur Zarrabi, Mohammad Mahdi Soori, Mohammad Noori Sepehr, Saied Borji
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26343

AbstractMonitoring an unstable slope is quite important for environmental safety. Based on our previous studies, this paper presents athird-generation distributed optical fibre transducer. The operating mechanism of this novel transducer was analysed for itsresponse to a single concentrated and uniform load, and a theoretical study was conducted on the elongation of the bottomsurfacefibres of a bending resistance model at the phases of linear elasticity and total cross-section cut-off stage. A b...
Autori: Bang Liu, Dong-Yan Liu, Hu Luo, Jing-Cheng Liu, Qiao-Ying Yuan, Yun-Ju Luo, Zheng-Wei Zhu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26348

AbstractOn the basis of questionnaire strategies with non-parametric statistic methods this article studies empirically the current status ofcapital undergraduates’ environmental knowledge, environmental awareness and environmental behavior based on a sampleselected from Peking University. The results show that environmental education atmosphere is not satisfactory, the linkage ofcollege and secondary school environmental education is problematic, environmental literacy among students is overall...
Autori: Di Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26361

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

AbstractThis work investigated the impacts of biodiesel properties on the complete fuel injection process of a high-pressure unit pump(UP) fuel system. Analysis based on a one-dimension flow model in the UP system deduces that both the injection pressure andthe pressure changing rate may be affected by the fuel properties. A serial of experiments were conducted under varied operationconditions to compare the influences of the diverse fuel properties on the fuel injection process. The test result...
Autori: Hefei Dai, Jing Peng, Tao Qiu, Xuchu Li, Yan Lei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26385

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

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

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

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

AbstractThe present study is an exploratory one representing the first endeavor to test the opinion of a small group of EnvironmentalEngineering students from the “Gheorghe Asachi” Technical University of Iaşi, Romania in terms of environmental issues. Thepurpose of the research presented in this paper is to determine the opinion of the students who are likely to become professionalsin the field of Environmental Engineering, on the consequences of the Roşia Montană - Gold Corporat...
Autori: Carmen Cătălina Ioan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26459

AbstractWater samples from two types of sources: partially treated sewage generated by a medium-sized city, with a high quantity oftotal coliforms and partially treated industrial wastewater, which contained mostly petroleum products from refineries, weretreated using the same concentration of TiO2 catalyst, for different exposure periods. UV-Vis and fluorescence spectroscopicevaluation of the composition changes of wastewaters under non selective oxidation conditions (achieved by photocatalysis...
Autori: Gabriela Pavelescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26474

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

AbstractThis study aimed to assess the ability of microorganism populations and two aquatic plant species (water hyacinth - Eichhorniacrassipes Solms and water morning glory - Ipomoea aquatica) to treat domestic wastewater in Nhue Giang pond, Tay Mo village,Tu Liem District, Hanoi City in Vietnam. The results showed that microorganism populations in the pond water contained all ofgroups of microorganisms including bacteria, Actinomycetes, mold and yeast. In water inlet and outlet samples, bacter...
Autori: Nguyen Thi Loan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26476

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

AbstractThe study site is located on South of Bacau City, Romania, on two water courses: the Siret River – the branch flowing throughthe old riverbed downstream Galbeni Reservoir, and one of its tributaries - an infiltration channel, both of them being used by thelocals for fishing and irrigation, and the common meadow for grazing. The study covers the right side of the Siret River, betweenthe interception point up to Galbeni Reservoir dam and the equivalent length of the infiltration channel. T...
Autori: Maria Ema Faciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26494

AbstractAir flow measurements as well as concentration measurements within a naturally ventilated dairy barn (NVD) were carried outduring one summer season of 2012. Air flow measurements were performed using ultrasonic anemometers (UA), either as shortduration (20 min duration) measurements with a higher spatial distribution (using up to 9 UAs at the same time) or as long period(roughly 2 weeks) measurements with a lower spatial resolution (3 to 5 UAs). Measurements were conducted at two heights...
Autori: Merike Fiedler
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26496

AbstractAs air quality becomes increasingly deteriorated in world-wide cities, air quality monitoring has extended beyond the criteriapollutants (CO, SO2, NOx, O3 and PM) in order to include several toxic air pollutants such as volatile organic compounds(VOCs). In the present study it was investigated the presence of 29 VOCs and PM including PM2.5, PM2.5-10 and PM>10 fractions,in an urban area from Romania. The total VOCs was higher in the urban area (176.72 - 192.54 μg/m3) than in the r...
Autori: Carmen Roba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26504

AbstractVegetables are an important part of a healthy diet because of their nutritional value. Contamination in vegetable may provehazardous for population. Polycyclic aromatic hydrocarbons (PAHs) are compounds widespread in the environment, many ofthem showing carcinogenic effects. These compounds can reach the food chain by different ways and, therefore, the analysis ofPAHs in food is a matter of concern.The present work provides data regarding levels of PAHs: acenaphthene (Ace), acenaphthylen...
Autori: Alina Soceanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26510

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

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

AbstractIn European countries, because of low fossil fuel reserves, energy saving is one of the primary research goals in every energyconsumer sector. In the last several years, several directives were elaborated by the European Commission to enhance the energyefficiency in buildings and increase the use of renewable energy sources. In European countries with temperate climates, in aresidential building with a “traditional” insulation of the envelope, heating represents approximately 65 to 75% o...
Autori: Imre Csáky
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26534

AbstractThe relationship between the use of renewable energy sources and other characteristics of national economies has frequently beeninvestigated, and a wide range of approaches can be observed in publications. The aim of this study to examine the potentialrelationship between the ratio of renewable consumption in gross energy consumption, GDP per capita, and R&D expenditures inEuropean Union countries. Data are analyzed in their original forms, and a mathematical model is presented that ...
Autori: Imre Kocsis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26542

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

AbstractDue to the continuously increasing trend in the costs of the traditional fossil fuels, the development of residential or commercialbuildings with reduced energy needs becomes a significant and more pressing scientific challenge. At the same time, consumersare increasingly demanding more comfortable buildings, where the energy needs are addressed using locally available renewableenergy resources. Consumers also require a higher level of security, supervision, and control of the building, ...
Autori: Géza Husi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26553

AbstractHeavy metals in sludge have been one of the limiting factors for sludge reclamation, and therefore the changes of heavy metalsduring sludge treatment process should be concerned. This study investigated the detailed profile of changes of seven typicalheavy metals (As, Cd, Cr, Cu, Ni, Pb, and Hg) in the activated sludge during ultrasonic treatment process. The influences ofsonication time and ultrasonic power density were studied. Results showed that heavy metals in sludge were released i...
Autori: Tian Wan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26563

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

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

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

Abstract The biological removal of organic matter from a cosmetic wastewater by sequencing batch reactors has been optimized by analyzing the influence of the hydraulic retention time as well as the inclusion of anoxic and/or aerobic stages in the process sequence. Hydraulic retention time of 5 d led to the highest total organic carbon and chemical oxygen demand removal regardless the sequence used. Although a completely aerobic sequence can be used for cosmetic wastewaters treatment, the al...
Autori: Montserrat Tobajas
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26589

Abstract The assessment of heavy metals pollution using Xanthoria parietina (L.) Th. Fr. as an indicator species was performed for forests from Bucharest metropolitan area. This study aims to provide original data concerning environmental quality in relation to the intensity of car traffic. Metal concentrations in Xanthoria parietina measured in sites adjacent to roads were compared with those measured at a distance from traffic. The results show significant correlations between the Cd and C...
Autori: Ioana Vicol
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26593

Abstract The present study was conducted to determine the heavy metals (Fe, Mn, Zn, Cu, Pb, and Cd) and essential oils content in the berries of Juniperus phoenicea L. grown in two different geographic origins; Dana conservation and Al-Hisha forest in Jordan. Atomic absorption and Hydrodistillation methods were used to determine heavy metals concentrations and oil contents in plant samples of J. phoenicea L., respectively. Results showed that, the oil yielded from J. phoenicea L. berries in ...
Autori: Mohammad Sanad Abu-darwish
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26595

Abstract This study evaluates the potential of Crambe abyssinica press cake, a residue from crambe oil extraction and/or biodiesel production, as an adsorbent for removal of cationic dyes from wastewaters. Batch adsorption tests were performed at 30, 40 and 50oC. Adsorption kinetics and equilibrium were satisfactorily described by the pseudo second-order and Freundlich models, respectively. Adsorption was spontaneous and exothermic. Fixed bed adsorption (breakthrough curve) was satisfactoril...
Autori: Adriana S. Franca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26597

Abstract This article covers the investigation of the catalyst waste (T.R.M 1 and T.R.M 2) produced in the reactor of oil catalytic cracking. The analysis of this waste was carried out. The properties of T.R.M 1 and T.R.M 2 were investigated and determined, the mineralogical analysis of catalyst waste was implemented, the analysis of thermal effects during the burning was performed. Catalyst waste materials investigated were used in a ceramic system (from 7  to 20  of the ove...
Autori: Olga Kizinievič
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26600

Abstract The purpose of the research is to highlight the impact of two aspects defining personal identity: the HIV/AIDS status and family background, on the individual self esteem of young people having grown up in a family or an orphanage environment. We evaluated 93 young people from families and placement centers, both HIV-positive and HIV-negative, for a period of 12 months, from January to December 2013. We used the Self Esteem Inventory to evaluate their overall self esteem, as well as...
Autori: Carmen Manciuc
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26607

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

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

Abstract The 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 The caraway (Carum carvi L.) samples were collected from little meadows situated in Harghita Mountain (Mădăraş Ciuc, Harghita Băi, Jigodin, Tuşnadu Nou), where a relatively small area was covered by a group of rich populations of wild cumin. The harvested plants are dried by: a) convective laboratory dryer in thick layer, b) static outdoors in sunshine, and (c) static in a warm indoor place in darkness. The hand-picked seeds were separated from debris by sie...
Autori: Csaba Dezső András
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26646

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

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

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

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

Abstract Adsorption equilibrium and effective diffusion coefficients of water vapor, in cylindrical particles of activated alumina (A) and activated alumina impregnated with calcium chloride (MCA), are experimentally determined. The experiments were conducted at 303 K and 323 K using cylindrical particles with 2.5 mm in both length and diameter. Diffusion coefficients were determined from the kinetics of water sorption. The measurements were conducted in a constant pressure unit based on a m...
Autori: Eugenia Teodora Iacob Tudose
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26665

Abstract The experiments on the olive oil mill wastewater treatment for removing the lipids by anaerobic and aerobic biodegradation with mixed Bacillus spp. culture indicated that the rate of the aerobic process is up to two times higher than that of the anaerobic one. In this context, it was found that the influence of the dissolved oxygen concentration on the lipids biodegradation process is significant, but the kinetic model given in literature does not consider this parameter. Therefore,...
Autori: Ramona Mihaela Matran
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26674

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

Abstract The present research reports the synthesis of poly-N-isopropylacrylamide / mesoporous carbon composites, prepared by radical polymerization of N-isopropylacrylamide inside mesoporous carbon pores functionalized with carboxylic groups. The deposition of poly-N-isopropylacrylamide on mesoporous carbon was confirmed by FT-IR spectroscopy, TEM, N2-sorption measurements. The mesoporous carbon material was found to adsorb vitamin B2 from aqueous solution at room temperature. The obtained ...
Autori: Maria Ignat
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26679

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

Abstract 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 degradation and adsorption behavior of dibutyl phthalate (DBP) in methanogenic phase refuse was investigated through laboratory microcosm experiments. The results showed that the half-life of DBP in the sterilized refuse was 5.9 times higher than in unsterilized samples, but that it decreased by 35.8% when dominant bacterial strains were added. Different concentrations of DBP did not have obvious effects on its degradation. The half-lives of DBP were decreased by 53.0%, 37.2% an...
Autori: Chengran Fang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26690

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

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

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

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

Abstract Waste management does not try to dispose waste anymore but is searching for the best solution to manage valuable and scarce resources and reduce the negative impact on the environment. Preoccupation in Germany with regard to optimization of waste recuperation and valorization increases and separate collection systems for different waste fractions are taken into consideration. Within this study a pilot project was set up and its results are presented below. The investigation evaluate...
Autori: Mihaela Berechet
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26758

Abstract The municipal waste landfills are known as important anthropogenic sources of methane and carbon dioxide being the most important greenhouse gases. The present study estimates the methane and carbon dioxide emission from the municipal open dump landfill of Cluj-Napoca (Romania). Two different methods were used: the first method was based on in situ measurements, using the closed chamber technique and the second one was based on the 2006 IPCC (Intergovernmental Panel on Climate Chan...
Autori: Gabriela-Emilia Popiţa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26761

Abstract The aim of this study is to analyse Romanian situation regarding packaging waste generated and to find out how the targets imposed after integration were accomplished, based on data collected and published by Eurostat, as well by other publications. The municipal solid waste collection practice in Romania is based on mixed collection (approximately 96% of waste generated), without or with minor sorting at source. Waste recovery is applied to small percentages and only for certain ca...
Autori: Carmen Luiza Costuleanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26764

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

Abstract Thermophilic anaerobic digestion is a suitable technology to treat agricultural waste because of its higher biogas production, hygienisation effect and solids removal efficiency. Although these benefits, poor effluent quality and instability are encountered in some cases. The anaerobic co-digestion of winery waste and waste activated sludge at 55°C, operating at 23 days HRT and with an organic loading rate of 3.2 kg COD/m3d, was characterized by accumulation of volatile fatty ac...
Autori: Cinzia Da Ros
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26775

Abstract The preliminary results of aromatic hydrocarbon (AR) levels and PM2.5 physico-chemical characterization in Rome urban air throughout the 2014 are reported. A gas chromatograph was used for continuous measurements of AR concentrations with 30 minute time intervals. PM2.5 was collected by PM swam Dual Channel. Metal content was determined by ICP-MS. Single particle characterization was performed by Scanning Electron Microscopy equipped with a thin window system for X-ray microanalysis...
Autori: Carla Fanizza
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26780

Abstract The use of non-conventional water resources including treated municipal wastewater has been increasing in the Mediterranean regions over the last decades to cope with water shortages and uneven rainfalls due to climate change. The aim of this paper is to present the first results from two years of experimental field activities carried out in two different demo-places in Southern Italy: the municipal wastewater treatment plants of Noci and Castellana Grotte (Apulia region). In these ...
Autori: Antonio Lonigro
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26787

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 It has been recently shown that acid activation enhances the ability of zeolitic tuffs to bind weak organic bases. More specifically, tuff containing acid-resistant zeolites (i.e. clinoptilolite) exhibits higher sorption capacity than chabazite/phillipsite-rich tuff. Based on the above considerations, we investigated in depth the adsorption behaviour of two pesticides onto acid-activated clinoptilolitic tuff under different experimental conditions. The pesticides simazine and boscal...
Autori: Stefano Salvestrini
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26791

Abstract This study carried out for the first time a comparison among ligninolytic (white-rot) and cellulosolytic or xylanolytic (Trichoderma) pre-treated wheat straw, for biogas production, potential, without or with pig slurry in co-digestion. Methane (CH4) production from wheat straw pre-treated for 4 and 10 weeks with seven different fungal isolates was preliminarily measured. Then, the effects on biogas yield of the co-digestion with pig slurry were checked on straw pre-treated with 3 s...
Autori: Ciro Vasmara
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26796

Abstract The aim of this study is to assess indoor air quality in an educational institute located in a suburban area of the Po plain (Italy). Samplings are carried out in preschool and elementary school classrooms, and also in the garden of the institute, to have information on outdoor levels. The monitoring is performed to determine the most important indoor pollutants (i.e. volatile organic compounds (VOCs), carbonyls and NO2), by using diffusive passive samplers. Sampling in the classroo...
Autori: Ivano Vassura
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26797

Abstract For the purpose of evaluating the effect of environmental regulations addressing Energy Conservation and Emission Reduction (ECER) on Chinese industry, this paper introduces a non-radial, non-oriented and slacks-based data envelopment analysis (DEA) model, energy conservation and undesirable output reduction slacks-based Malmquist index (EUSM index) and its decompositions. This model can simultaneously measure energy and non-energy inputs along with pollutant emissions in addition t...
Autori: Jing Xiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26805

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

Abstract Drying wood requires a significant amount of energy. This includes both thermal energy, necessary to heat-up wood, evaporate the water inside it and cover the insulation and vent losses, as well as electric energy consumed to force air circulation through the stacks. When wood is frozen, both energy consumptions increase; on one hand because frozen water requires a supplementary heat for transformation into liquid and then into gaseous state, and on the other hand, because of the lo...
Autori: Maria Bernadett Szmutku
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26841

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

Abstract Composting has been attracting increased interest in the field of organic waste management. During composting, high-strength leachate is produced with a considerable amount of organic and inorganic pollutants. Lab-scale experiments were performed for the removal of chemical oxygen demand (COD) and chloride from compost leachate using a combined membrane system. The combined system consisted of microfiltration, ultrafiltration, and reverse osmosis (RO) membranes. The COD removal eff...
Autori: Vahide Şeyda Özyaka
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26847

Abstract Environmental research has been significantly enriched by genomic and proteomic methodologies. Particularly in the atmospheric pollution studies, where a variety of environmental hazards act simultaneously and frequently in close interrelationship, only such integrative methods can provide a comprehensive analysis. Nanoparticles are a heterogeneous class of particles, but their health effects have also common aspects. The scope of the article is to present the contribution of genomi...
Autori: Marina Otelea
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26852

Abstract This study concentrates on the reactive biosorption of dyes such as Reactive Red 3:1 (RR3:1), Reactive Orange 13 (RO13), Reactive Blue 13 (RB13), Reactive Blue 72 (RB72). The modified fungal biosorbent, Paecilomyces sp., had a higher dye biosorption yield in our study. 100% of biosorption yield observed on RR3:1 and RB13 and 94.09% of color removal of RO13 with the chemically modified biosorbent were great. Also, such modified biosorbent exhibited remarkable performance in simulate...
Autori: Ahmet Çabuk
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26860

Abstract In this study, Moringa oleifera seed extract was applied as coagulant under different pH values (2.5 - 9.5), coagulant dosages (200-600 mg/L), initial dye concentrations (50-300 mg/L) and different settling times (0- 60 minutes) for R. Blue 19 and R. Red 120 dyes removal. Results revealed that with increase in pH (from 2.5 to 9.5), removal efficiency decreased from 95% to 87.3% for R. Blue 19 and from 97.2% to 62% for R. Red 120. By increasing coagulant dosage to 400 mg/L, removal e...
Autori: Ali Jafari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26864

Abstract The aim of this study was to determine the content of the main essential trace (Co, Cr, Cu, Mn, Se and Zn) and toxic (As, Cd, Hg and Pb) elements in milk by inductively coupled plasma-mass spectrometry (ICP-MS) and cold vapor atomic fluorescence spectrometer (CV-AFS) following priory microwave-assisted digestion with HNO3-H2O2. The milk samples were collected from local small-scale producers of different parts of Rodnei Mountains, Eastern Carpathians, Romania. Mean concentrations in...
Autori: Oana Cadar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26876

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

Abstract Ash resulting from wood combustion constitutes a waste disposal problem to facility owners. The use of ash fertilizer or soil amendment could provide nutrients for agriculture if its nutrient content is adequate and it does not contain harmful amounts of heavy metals. The recycling of nutrients bound in ash would provide an inexpensive solution to waste problem. In our study, we aimed to characterize ash and clinker resulted from incineration of oak waste resulted from wood industry...
Autori: Ioan Oroian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26885

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

Abstract The 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 Heavy metals are considered important pollutants found in sewage sludge. That is why sewage sludge can have a limited use as fertilizer in agriculture. Some aquatic plants can remove nutrients and heavy metals from media as sewage sludge or contaminated sediments. In this paper, we investigated the effects of different concentration levels of two heavy metals (Ni and Cd), respectively, 10, 35, 85 and 20, 50, 150 mg/kg in sedimentary media on plant uptake of Ni and Cd, considering th...
Autori: Shahram Goudarzi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26912

Abstract Synthesized silicates and their organically modified products have been least explored for their potential use in contaminated water remediation and also as slow release formulations. In this study, adsorption potential and applicability of surfactant modified clinoptilolite (SMC) and montmorillonite (SMM) nanoparticles as adsorbent and slow release formulation of 2,4- dichlorophenoxyacetic acid (2,4-D) have been investigated. The surface modification of hydrothermally synthesized s...
Autori: Deepesh Bhardwaj
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26913

Abstract This study presents enhanced reduction of soluble contaminants in a modified electrocoagulation process that is capable of treating a mixture of aqueous contaminants. By incorporating an iron foam cathode, the process can remove aqueous trichloroethylene (TCE) by 99.1% and nitrate ions by 98.2%, which represents 58.1 and 20 percent higher than the removal rates achieved by iron plate cathode, respectively. pH and ORP measurements indicate the development of a reducing electrolyte c...
Autori: Xuhui Mao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26915

Abstract The possibility to use release controlled fertilizers in the agriculture of the tropical countries is more important than in the agriculture of the countries of the cold regions. In this context, the purpose of this work is the characterization of an encapsulated commercial Fertilizer of Controlled Release named FERLENT®, which was covered with a polymeric material, obtained in situ, under controlled conditions, which allowed to corroborate the fairly well adjustment of the synt...
Autori: Mayra González Hurtado
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26916

Water scarcity, the degradation of freshwater resources, and wastewater pollution are reaching crisis levels, especially in arid regions of the world. The reuse of wastewater was investigated by using intermittent media infiltration (IMI) to evaluate fecal coliform (FC) removal efficiency. Twelve IMI columns were packed with soil and natural filtering materials (sand, zeolite, vermicompost and charcoal) at percentages of 25, 50 and 75. The municipal wastewater was treated for the FC analysis ...
Autori: Sasirot Khamkure
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26935

Environmental persistence of endocrine disrupting estrogen chemicals (EDC) subsequent to endocrine function even at nanogram concentration in environmental matrices has garnered significant global attention due to their possible disruptive effects in an intact organism, or its progeny. An attempt was made in present study to investigate the occurrence of two estrogens viz. natural (estriol, E3) and synthetic (17α-ethynylestradiol, EE2) in the surface waster bodies of Hyderabad, India. A...
Autori: A. Kiran Kumar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26953

In the presence of surfactant sodium dodecylbenzene sulfonate (SDBS), the development of main hydrolysis products (soluble carbohydrate and protein) and hydrolytic enzyme activities (amylase and protease) were monitored during microaerobic thermophilic digestion (MATD) of waste activated sludge (WAS). Results showed that the presence of SDBS remarkably increased the solubility of protein and carbohydrate into aqueous phase. The maximal concentration of carbohydrate and protein was 990.39 and...
Autori: Qi Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26958

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

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

The renewable sources of energy represent a viable alternative for satisfying the energetic needs of humanity in case the fossil fuels reserves are exhausted, which is estimated to occur in maximum 25 years if the current rate of exploitation is maintained. Nowadays, there are several concerns about the valorization of the energetic potential of these resources (wind, water flows, solar, geothermal energy etc.), but also a series of extremely beneficial practical uses (i.e. wind parks, photov...
Autori: Daniela Suteu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26989

This study is motivated by current debate about the importance of the environment as a determinant of later disease risk. Children in urban areas are considered to be more advantaged than those from rural areas due to higher standards of health, protection, education and sanitation. Our study aims to assess the differences between children from urban and rural environments with focus on auxologic parameters, comorbidities and the onset of puberty. An observational study was conducted on a ran...
Autori: Ionela Pascanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26993

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

In this study, Sick Building Syndrome (SBS) is surveyed in the residential buildings of Ekbatan, a district in the Western part of Tehran. A number of 330 individuals were selected randomly. It was investigated whether factors such as the physical conditions of the sampled buildings, occupation and lifestyle-related behavior such as smoking were associated with the intensification of irritation and mental symptoms. The symptoms of SBS were observed positive in 56.4% of the cases. The worst sy...
Autori: Amir Sheikhmohammadi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26998

The densities and distributions of airborne fungal spores known to cause respiratory tract disorders were monitored in three educational buildings located in different boroughs in Iaşi. Air samples from all locations were collected monthly over a period of 3 months (March-May 2011), using the Petri plate gravitational settling (passive) method. Petri plates containing nutrient media were exposed to room air for a 15-minute period, face upwards, to collect particles settling by gravity. A...
Autori: Florin Daniel Lipşa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27003

A pure strain of Pseudomonas chlororaphis DJ-4 capable of anaerobic biodegradation of o-xylene, m-xylene and p-xylene was isolated from gasoline contaminated soil. In batch cultures, growth of the strain and biodegradation of xylene isomers led to stoichiometric reduction of nitrate. P. chlororaphis DJ-4 could degrade 150 mg L-1 of m-xylene completely within 12 days and without a lag period. However, higher initial concentrations of o-xylene and p-xylene were toxic to the bacterium of P. chl...
Autori: Junfeng Dou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27005

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

Selenium (Se) is a mineral of fundamental importance for human health. Se status in general population is very important due to its remarkable benefits to the human body: antioxidant, hormonal regulator, anti-carcinogen. At the same time Se can be toxic leaving a narrow optimal range for optimal intake. Both excess and deficit are known to cause a wide range of clinical manifestations. Even though a large body of evidence provides vast information about Se, the exact molecular mechanisms of i...
Autori: Cristina Preda
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27016

This paper aims to establish the capacity removal of hexavalent chromium [Cr(VI)] from wastewaters using a TiO2 – Fe3O4 based nanocomposite. Latest researches in the field point adsorption as a better option for removal of heavy metal ions from waters, this method being more efficient and cost effective, in comparison with other advanced methods like reverse osmosis, ion exchange, nanofiltration, etc. Based on this information, the goal of this work had as purpose the obtaining, charact...
Autori: Andra Predescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27025

The aim of this study was the diversification of fodder yeast assortments with viable economic effects while reducing the pollution to the environment by capitalisation of wastewaters with high monosaccharides content from pulp and paper industry. As inoculum, in the bioreactor, a mixture of two species of yeasts Candida utilis and Candida arboreea (1:1 ratio) was used at 38°C, pH 5.5 and an air flow of 0.02 L/h was insured. Wastewaters from technological process of pulping of softwood wi...
Autori: Andrei I. Simion
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27028

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

Recently, environmental scientists have been focused their attention on the occurrence and the elimination of specific organic compounds in water. Among them, chlorophenols are considered to be a public health problem due to their carcinogenic properties. Thus, there is an important need to find new strategies to efficiently transform these compounds to no toxic or inactive by-products. In this work the photocatalytic removal of 2,4-dichlorophenol in water solution was investigated at laborat...
Autori: Lidia Favier
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27034

From previous studies, it was found that the most important pluviometric indicators which characterize the frequency, intensity and spatial distribution of drought in Prut River floodplain are the standardized precipitation index, Hellmann’s criterion and Topor aridity index. Standardized precipitation index values between (-1.5) and (-1.0) indicates a high frequency of the moderate-dry periods and very dry ones reached 2.3 %. Autumn shows moderate - dry traits in 13.5% of the years and...
Autori: Flaviana Corduneanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27050

In this paper both kinetic and thermodynamic parameters of thermochemical transformation of waste tires are evaluated by using thermogravimetric analysis (TGA). For rubber thermochemical decomposition, individually and in the presence of other tires components, some kinetic and thermodynamic parameters such as energy of activation (Ea), frequency factor (A), reaction enthalpy (ΔH), entropy (ΔS) and free energy (ΔG) have been calculated by using the integration method. The e...
Autori: Sana Kordoghli
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27060

The management of urban solid waste is a growing priority both in large cities and in rural settings, and in developed and developing countries. Many factors can influence the type and amount of waste generated, including population density, level of industrialisation, quality of life of households, type of area (urban/rural) and local climate. In this paper, we introduce an index of solid waste recycling over a ten-year period and examine the influence of several such factors on this index. ...
Autori: María-José Del-Moral-Ávila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27071

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

This study highlights the potential use of yellow Zea mays seed chaff (YZMSC) biomass as a biosorbent for the removal of Cr3+, Cd2+ and Pb2+ ions from aqueous solutions. Fourier transformed Infrared analysis of the biomass suggests that YZMSC biomass is basically composed of cellulose and methyl cellulose. The biosorption capacities, qmax, of YZMSC biomass for Cr3+, Cd2+ and Pb2+ are 14.68, 121.95 and 384.62 mg/g respectively. Biosorption equilibrium was achieved at 20, 30 and 60 min for Cr3+...
Autori: Jonathan Oyebamiji Babalola
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27083

The main aim of this study is determination of sedimentology and sedimentary environment of Meighan Playa in the Markazi province in Iran. The purpose was to obtain information of sedimentary data and 94 samples of the sediments were collected from a wide range of Meighan playa in order to evaluate the conditions of deposition of the sediments in Meighan playa. With the goal of conducting a detailed and comprehensive study of the sediments in the playa, an attempt was made to collect samples ...
Autori: Mostafa Yousefi Rad
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27103

Freshwater marshes are the single largest source of atmospheric methane (CH4). Climate change and anthropogenic nitrogen (N) deposition can alter the production and oxidation of CH4 respectively and thereby also CH4 exchange. But there was little known about how N regulate key carbon (C) processes, like CH4 production and oxidation under freshwater marshland conditions. In this study, field-fertilization and incubation experiments were conducted to investigate the effects of four N-fertilizat...
Autori: Lihua Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27107

The aim of this study is to investigate an innovative way to utilize the char obtained from tyres pyrolysis, in order to realize lightweight materials for building. Pyrolysis residue, mixed with three types of waste glass, has been used as raw material to obtain lightweight materials, exploiting its capability to behave as foaming agent. The results demonstrate that the pyrolysis char is a good foaming agent for the mixtures 50/50 with glassy sand and packaging glass waste, thermal treated at...
Autori: Fernanda Andreola
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27119

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

Microbial fuel cells (MFCs) are bioelectrochemical reactors that directly convert the chemical energy stored in chemical bonds of organic substrates, to electrical energy. Saccharomyces cerevisiae was implemented as biocatalyst in the anaerobic anode compartment of an MFC using glucose as carbon source and methylene blue as electron mediator. Our results showed the effect of methylene blue on the microbial metabolism and the reversibility of the redox reaction of the shuttle mediator in the p...
Autori: Ruggero Rossi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27131

In this study, the potential for biogas production from biodegradable bioplastics was evaluated. Mater-Bi® (a family of maizestarch based flexible films) and PLA (PolyLactic Acid; a rigid, polylactide-based, polymer) bioplastics were digested in laboratory batch reactors, alone or in co-digestion with pig slurry or scotta (partially deproteinized cheese whey), at 35°C or 55°C. Methane (CH4) and hydrogen (H2) production were monitored during the incubation period. Maximum CH4 (Mmax...
Autori: Ciro Vasmara
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27134

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

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

The objective of this research was to study the degradation of chloramphenicol (CAP) in soil using activated carbon fiber supported nanoscale zerovalent iron (ACF/nZVI) coupled with microwave (MW) irradiation. Compared to ACF/MW, nZVI/MW and MW alone, the ACF/nZVI/MW system had a higher degradation efficiency. A Box-Behnken experimental design was employed to analyse relative significance of independent variables A (irradiation time), B (MW power), and C (MW absorber dosage), and combined ef...
Autori: Wengui Liu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27154

Animal manure is widely used as organic fertilizer for crops. However, high concentrations of heavy metals in animal manure are of great concern. In this study, we found that chicken and pig manure compost contain high concentrations of arsenic (As), cadmium (Cd), copper (Cu) and zinc (Zn), and the concentrations of these heavy metals in the pig manure were higher than those in the chicken manure. Chicken or pig manure compost fertilization elevated the concentrations of these heavy metals in th...
Autori: Guilan Duan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27155

This study examines the impact of the chemical oxygen demand to nitrogen ratio (COD:N) on nitrous oxide (N2O) emissions during N removal via a nitrite (NO2−) pathway for synthetic livestock wastewater treatment. Based on typical cycle operations, 1.07 ± 0.07% of the incoming N load was emitted as N2O at a COD:N ratio of 3:1. This was higher than the 0.83 ± 0.08% emitted at a COD:N ratio of 6:1. The low COD:N ratio in the synthetic livestock wastewater may thus cause increa...
Autori: Qiang Kong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27157

It is of great concern to reduce greenhouse gases (GHG) and ammonia (NH3) emissions from animal manure composting in China. The purpose of this study was to investigate effects of adding red mud on emissions of GHG (methane (CH4), nitrous oxide (N2O)) and NH3 in full-scale swine manure windrow composting. Two full-scale swine manure windrow composting experiments were carried out to compare emission of GHG and NH3 with and without addition of red mud. Results showed that the addition of modified...
Autori: Chenyang Zhao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27158

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

A combined system of up-flow cyclic sludge bed (UCSB) and aerobic nitrification reactor (ANR) was designed for organic matter and ammonia nitrogen (NH4-N) removals of swine wastewater. The UCSB had one acidogenic zone for hydrolytic acidification to solve the problem of poor carbon source in swine wastewater, and the other zone for denitrification. Results showed that average removals of the chemical oxygen demand (COD) and NH4-N were 92% and 95%, respectively, under the following conditions...
Autori: Jie Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27160

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

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

Safe utilization of fly ash (FA) and reclamation of sodic soils are important environmental problems. In this study a field experiment was carried out with Vigna radiata L. crop using fly ash (FA) and phosphogypsum (PGY) as amendments in sodic soil during 2011 at Lucknow, Uttar Pradesh, India. V. radiata L. was sown in sodic soil amended with press mud (10 t ha-1) considered as control. Besides, 10 and 20 t ha-1 doses of FA and PGY were considered as other four treatments, respectively. The grow...
Autori: Kripal Singh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27180

There has been a growing amount of work on microbial fuel cells (MFCs) in the last years, both on the microbiological issues and on the engineering ones, which managed to increase power outputs by an order of magnitude. However, they are technically still far from attaining acceptable levels of power output. Therefore, it is necessary to go deeper in understanding the mechanisms involved in electricity production with MFCs and use this new knowledge to achieve significant increases in power outp...
Autori: Vânia Oliveira
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27187

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

In this paper low power microwave radiation impact on Zea mays root meristeme tissues was investigated. Seeds with uniform genophond were exposed for 3 hours at 10 W incident power level in controlled condition to continuous wave at three different frequencies (0.6 GHz, 1 GHz and 2.5 GHz) and let to germinate after electromagnetic exposure. Dosimetric assessment made experimentally and computationally allowed the proper energetic characterization of the interaction between vegetal tissue and rad...
Autori: Mihaela Răcuciu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27196

In order to limit personnel exposure to electromagnetic fields, safety standards provide among others, limitations in terms of induced currents in limbs, which is the measurable quantity allowing the evaluation of thermal load in limbs in the real conditions of electromagnetic radiofrequency exposure. Using a clamp-on current meter, eleven subjects were measured for current passing through their feet during the use of backpacked radio equipment, configured in various operating modes while using ...
Autori: Annamaria Paljanos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27204

Groundwater originating from two rural communities from Cluj and Bistrita Nasaud counties was analyzed using parallel ion chromatography, the focus being on major anions (chloride, nitrite, nitrate, phosphate and sulphate) and cations (potassium, sodium, ammonium, calcium and magnesium). These analytes were determined simultaneously using a Shimadzu two-channel instrument with non-suppressed conductivity detection, separations being carried out using an Allsep Anion 7u column and an Universal Ca...
Autori: Edward Muntean
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27211

In this study, Response Surface Methodology (RSM) was applied to investigate both the effects of biodiesel percentage in fuel mixture and engine operating parameters (engine load and engine speed) on emission characteristics (unburned hydrocarbons (HC), CO and NOx) of a diesel engine. The optimization of biodiesel percentage in fuel mixture and engine operating parameters also was performed using the desirability approach of the response surface methodology for lower emission characteristics. Th...
Autori: Alireza Shirneshan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27217

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

In this study, the oleaginous yeasts cultured in tomato waste hydrolysates (TWH) to produce microbial lipids that offer a suitable alternative to vegetable oils as feedstock for the biodiesel synthesis. The TWH were prepared by acid hydrolysis (2.5% H2SO4). To obtain higher growth rates, as well as higher lipid contents, Lipomyces starkeyi were cultured under original nitrogen content (TWHON), lower nitrogen content (TWHLN), attained by alkaline precipitation of TWHON followed by centrifugation ...
Autori: Abu Yousuf
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27226

Maize (Zea mays L.) is considered one of the most popular grain crops in China. Among various agricultural technologies, soil mulching is the one that is used more and more in recent years. Mulches influence the soil temperature, retard the loss of soil water, and limit the growth of weeds; and these are important factors in the production of maize. A two-year field experiment was carried out at Shanghai, in southeast of China, in order to evaluate the effects of water hyacinth residues as mulch...
Autori: Dayong Xu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27229

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

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

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

The electrochemical disinfection of effluents from poultry waste anaerobic digestion was investigated. The influences of electric current densities, electrolyte species and dosages, effluent turbidity and concentrations on the bacterial inactivation were determined. The efficiency of inactivating bacteria in the effluents by electrochemical treatment increased with increasing the electric current density and electrolyte dosages. Treatment with the addition of HCl as electrolytes resulted in the ...
Autori: Mengzi Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27252

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

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

Soil in industrial cities and their surrounding regions sustains high levels of contamination due to the intense industrialization and urbanization. Taiyuan, a city in northern China, and its surrounding regions are a hotspot for the development of heavy industry. To assess the environmental quality, we collected surface soil samples from Taiyuan’s urban–rural transition zone. We determined concentrations of Cr, Cu, Pb, Zn, As, Cd, and Hg. The primary inputs of Cr and As were pedogen...
Autori: Jinchang Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27260

Non-availability of good quality water in sufficient quantities and the environmental impacts of used water discharges have led to the treatment and reuse of the aquaculture water contaminated with dissolved organics and ammonia rather than discharging it. This paper explores the effectiveness of in-situ sediment microbial fuel cell (MFC) for aquaculture water treatment along with generation of electricity. A sediment microbial fuel cell (SMFC) was designed and the efficiency of stainless steel ...
Autori: Thypparampil Karunakaran Sajana
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27261

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

The International Conference on Environmental Engineering and Management (ICEEM) was initiated and organized every 2 years, since 2002, by the Department of Environmental Engineering and Management, Faculty of Chemical Engineering and Environmental Protection from the “Gheorghe Asachi” Technical University of Iasi (TUIASI), Romania. The declared objectives of all ICEEM conference editions were to bring together international researchers, academics, professionals and students, activat...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27269

Water quality index is an essential tool for water quality assessment. Considering the frequent use of automated water quality monitoring systems, their importance in generating data and information for the efficient management of water treatment plants, the design of such an index would allow the detection of point-pollution episodes, which otherwise would occur undetected and would have a significant impact on the water quality and its further treatment. In this study, a versatile weighted wat...
Autori: Ioana Gabriela Dascalescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27271

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

The present paper focuses on the environmental pillar of a new and innovative framework for sustainability assessment of VET - Vocational Education and Training - providers. By employing case study methods on a research sample of 6 VET providers in the Mures County, Romania, we have determined the sustainable development challenges that VET providers face. The results are used to elaborate the core subjects of the framework in accordance with existing practices at VET providers. The framework is...
Autori: Liviu Moldovan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27294

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

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

The experimental results of studies on cement concrete with fly ash and metallic fibers are presented and are compared with a control mix. In the tested mixes five dosages of cement replacement with fly ash and two dosages of metallic fibers were considered. Mechanical characteristics such as compressive, flexural and split tensile strengths were experimentally determined. Tests results had shown that fly ash as replacement of cement generally reduced the mechanical strengths of concrete. In the...
Autori: Adrian Alexandru Șerbănoiu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27307

The propagation of electromagnetic radiation was investigated at different points, and the theory of covariance was applied to identify the main parameters by recording the max, mean and min values of density. The biggest electric field strength values are emitted by the second generation (2G) GSM mobile phones that operate in the frequency band of 900 MHz. The smaller electric field strength values are determined by the higher frequency (1800 MHz) used by mobile phones and smaller maximum power...
Autori: Raimondas Buckus
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27314

The International Conference on Environmental Engineering and Management (ICEEM) was initiated and organized every 2 years, since 2002, by the Department of Environmental Engineering and Management, Faculty of Chemical Engineering and Environmental Protection from the “Gheorghe Asachi” Technical University of Iasi (TUIASI), Romania. The declared objectives of all ICEEM conference editions were to bring together international researchers, academics, professionals and students, activat...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27321

The efforts to quantify gas emissions from wastewater handling have omitted the conveyance along sewers, lift stations, and manholes. This article compared the conventional system with the vacuum system based on sewer gas emissions. The goal of the study was to determine the emissions of methane, hydrogen sulphide, carbon dioxide and carbon monoxide at the level of the wet-wells of the conventional system and the exhaust of the vacuum system before and after the bio-filtration process by way of...
Autori: Iulia Carmen Ciobotici Terryn
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27326

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

Environmental education is an important field of study at the university level and also in the framework of adult education. Awareness about the environmental issues at global level is becoming increasingly important for the new society, representing one of the most significant factors for ensuring sustainability. In this respect, a number of European programs are addressed to the people willing to develop projects on this topic, aiming to stimulate the mobility of the involved staff, in order t...
Autori: Madlena Nen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27345

The occurrence of spontaneous combustion phenomena in coal mines is generated by the reaction of mineral substance with atmospheric oxygen and favoured by the oxidation (self-ignition tendency) of coal, an oxidant environment and by the conditions in which heat exchange with the environment takes place. Preventing / Fighting against this phenomenon is regulated in the specific OHS requirements and in the General mining plan, comprising the technical and organisational measures for prevention an...
Autori: Cristian Tomescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27369

This study presents mercury (Hg) assessment in water from tailing dumps collected form NW Romania by using commercial Diffusive Gradients in Thin-films (DGT) devices and Thermal Desorption - Atomic Absorption Spectrometry method (TD-AAS) technique. Additional aim of this study is to present Hg method validation and measurement uncertainty estimation for selected samples. An atomic absorption spectrometer based on thermal desorption for mercury vapor generation and DGT devices specific for Hg (c...
Autori: Marin Senila
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27383

A comparative study of humic substances (HS) extracted from raw sludge and its digested product was carried out in order to analyze HS evolution during sludge anaerobic digestion. HS content, elemental composition, functional groups, infrared spectra and ultraviolet absorbances were analyzed by means of chemical and spectrographic methods. The extracted HS were also fractionated by ultrafiltration in order to obtain their molecular weight (MW) distribution. The results showed that humic acids (...
Autori: Huan Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27390

Continuously increasing energy prices, as well as the increasing number of legal stipulations, bring to the attention of scientists the necessity of finding solutions for energy saving by using different heat sources. According to the EU Action Plan, the highest potential of energy savings (27-30% until 2020) will be applied to the existing buildings. Under the circumstances of environmental issues, research on the use of secondary energy resources is of great interest, being a concern in the...
Autori: Timea Gabor
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27395

The anaerobic digestion (AD) of fat-containing waste is often prolonged in time and problematic. Differences in AD performances could rely in a different probability for microorganisms to access the substrate. The aim of this study was to study the AD of waste cooking oil (WCO) with a biophysical approach. Two laboratory experiments were carried out using model systems consisting of WCO + hydration medium (HM) in 100 mL, static, in-batch reactors. In the first experiment, we assumed the WCO to H...
Autori: Francesca Fiume
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27409

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

Improving the awareness of the responsibility of our actions is the basis of achieving the ambitious aim of waste management and prevention established by the European Waste Framework Directive 2008/98/CE and the most recent Circular Economy Package. Circular Economy is connected both to improve manufacturing technologies and also educate people towards responsible consumption and waste reduction. Due to its educational and institutional role, universities provide a context to rethink not on...
Autori: Sara Rizzo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27414

The objectives of this study were to investigate the composition of activated sludge biofilms and flocs in a sequential batch reactor (SBR) and in a sequential biofilm batch reactor (SBBR), and to evaluate the role of the extracellular polymeric substances produced in the reactors in comparison with the respective treatment efficiency of domestic wastewater, containing 1 to 40 mg/L phenol. Both reactors showed variable removal efficiencies. The SBR was found to contain more protistan species ...
Autori: Chrysi A. Papadimitriou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27422

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

Decolorization of C.I. Acid Orange 7 (AO7) via TiO2-assisted photocatalysis under UV illumination in the presence of H2O2 has been investigated. The effect of pH on decolorization efficiency of AO7 was investigated in TiO2/UV/H2O2 process. The performance of TiO2/UV/H2O2 system was also evaluated by using synthetic dye-bath effluent of AO7. Solar driven TiO2 photocatalysis was found significantly efficient for the decolorization and degradation of AO7. The rates of decolorization and degrada...
Autori: Ozlem Esen Kartal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27433

Cascade dams alter the movement and accumulation of heavy metals in sediments along the river continuum. 27 sample crosssections were taken in July 2011 from the Xiaowan, Manwan, and Dachaoshan dams in the middle reach of the Mekong River in southern China and analyzed for content of heavy metal (Zn, Cr, Pb, As, Cu, Ni, and Cd) concentrations in the dammed river reach. There were evident spatial variations of the heavy metal concentrations downstream and upstream of the three cascade dams; t...
Autori: Li Deng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27436

Acid-base accounting was applied to evaluate the acid generating potential of waste rock dumps of different ages at a nickel mine in Zimbabwe. Metal concentrations in soils surrounding the dumps were also assessed. The net neutralising potential (NNP) of waste rock samples was derived from the maximum potential acidity (MPA) and the neutralising potential (NP). MPA and NP were determined based on total sulphur and acid consumption respectively. Waste rock dumps (WRDs) had more (p<0.05) su...
Autori: Artwell Kanda
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27437

This study attempted to measure the amounts of nickel, mercury and cadmium in leaves of Avicenna marina and sediments at Persian Gulf port shoreline in Iran to investigate their use as bio-indicators. Mean concentrations of Hg (0.02±0.00 mg/kg), Cd (0.79±0.13 mg/kg) and Ni (60.81±0.00 mg/kg) in the sediments were higher when compared with values registered in leaves to each metal (Hg: 0.01±0.00 mg/kg; Cd: 0.13±0.03 mg/kg; and Ni: 1.47±0.35 mg/kg). Reg...
Autori: Javaheri Baboli Mehran
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27441

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

This study analyses the relationship between the scattering properties and the chemical compounds internal mixture of the aerosols near Bucharest, Romania. Several cases of local aerosols influenced by heating sources, like wood or fossil fuel, are characterized in order to retrieve the winter period specificity. Correlation between organic and inorganic aerosols composition from mass spectrometry measurements made with Compact Time (CT) of Flight Aerosol Mass Spectrometer (AMS) and scatteri...
Autori: Luminita Marmureanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27444

Mobilization of micro- and macronutrients and their uptake by Zea mays L. and Triticum aestivum L. in response to EDTA additions to risk metal contaminated agricultural soil was monitored over a three year period on the field scale. EDTA addition effectively increased the mobility of total water-soluble micronutrients (Cu, Fe, Mn) and macronutrients (Ca, Mg, P) in soil extracts. Mobilization was highest in the first year and decreased strongly over time. Elements with a high affinity for EDTA (C...
Autori: Reinhard Rauch
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27477

Wastewater treatment using sequencing batch reactor (SBR) has certain advantages over conventional activated sludge system. The performance of sequencing batch reactor in treating high C/N ratio was investigated with suspended polyurethane and polystyrene attached growth biomass configuration. A sequence of 4 hr HRT, 0.3 month SRT and 1kg COD/m3 was employed to study treatment efficacy. Treatment performance was assessed by means of chemical oxygen demand (COD), total nitrogen (TN) and total pho...
Autori: Beenish Saba
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27478

Chemical composition variations of aerosols during summer and winter seasons have been investigated using an Aerosol Mass Spectrometer (AMS) at Magurele, a city near Bucharest, Romania. Proportions of chemical species, concentration time series, mass range distribution and aerodynamic size distribution of aerosols have been analyzed. AMS measurements proved that the organics, nitrate, sulphate and ammonium, with small amounts of chloride were the main species at ground level during the investig...
Autori: Jeni Vasilescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27479

In the current work, a numerical model for the prediction of temperature, air velocity, relative humidity and ammonia distribution released by sheep and goats manure inside a naturally ventilated livestock building is presented. Given that noteworthy amount of gaseous pollutants are emitted by the agricultural and animal husbandry activities, the study of the indoor microclimate is essential to be investigated for the healthy growth of the breeding livestock. The developed numerical model is sat...
Autori: Catherine Baxevanou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27482

Lijiang River is the link of Guilin landscape and the golden waterway of Guilin tourism. With the development of social economy, the pollution problem of Lijiang River in recent decades has become more and more serious, which has aroused widespread concern and attention. However, the study on the reduction of river pollution load is seldom found reported until now. In this paper, the pollutant load of Lijiang River is estimated by equal standard pollution load method and the water pollution mode...
Autori: Ronghui Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27490

The phenol degradation capacity of Serratia marcescens NSO9-1 isolated from olive mill wastewater was evaluated and optimized in this study. Plackett-Burman design coupled with Box-Behnken methodology was used to evaluate the effects of medium components and significant parameters on phenol degradation by this relevant strain. According to Plackett-Burman-based statistical screening, seven of the eleven components of the medium had a significant effect on the metabolism of phenol degradation. Th...
Autori: Nurdan Saraç
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27495

The present study deals with the production of biogas from post-harvest wastes of pineapple such as peels, leaves, mixture of peels and leaves with the two different types of inoculum viz., Cow Manure (CM) and Novel microbial Consortia (NC). The results between the two types of inoculum were compared to find out their efficiency. Among the different substrate-inoculum combinations, the biogas production potential was evaluated which resulted that NC was more efficient compared to CM. All assays ...
Autori: Mukesh Kumar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27496

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

The aim of the studies was to evaluate the influence of the 30-year operation of a small retention reservoir fed with water from a forest-agricultural catchment area on the contents of selected mineral elements substances in bottom deposits. The studies were carried out in the Łoje dam reservoir (N 53o7’28’’, E 20o48’20’’), supplied by the regulated Łojówka stream. Deposit samples were collected in four transects perpendicular to the reservoir...
Autori: Ireneusz Cymes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27518

This paper introduces basic information on the biodegradation of polymers as well as the mechanisms of degradation and factors influencing this process. This paper describes prodegradant additives that induce decomposition of polymers to biodegradable compounds with regard to additives causing oxo-biodegradation. Based on the results of experiments conducted for molded pieces made of polypropylene and extrudates made of low density polyethylene with a d2w prodegradant additive, dependences betwe...
Autori: Tomasz Jachowicz
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27519

Weakly acidic Litavka and alkaline Malín soils are some of the most contaminated soils by multiple risk elements in the Czech Republic. The aim of this paper was to determine the effect of P sources (rock phosphate, superphosphate), each applied at three rates on the mobility of risk elements (Cd, Zn, Pb, As) and micronutrients (Fe, Mn) in soils and to compare their effectiveness with lime and dolomite tested in our previous study. In 7, 14, 28, and 42 days, we determined CaCl2-extractabl...
Autori: Stanislava Vondráčková
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27521

This study of the variation process of the chemical properties of eutric Cambisols on altitudinal levels, forest station subclasses and geomorphologic units, was based on soil analyses from 847 soil horizons gathered from 379 profiles. These profiles were distributed on Romania’s entire forest area. The average values of the eutric Cambisol’s chemical properties fit were within the known limits for this type of soil, but there were slight variations based on altitude, forest station ...
Autori: Gheorghe Spârchez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27522

Galvanocoagulation (GC) utilizing metallic iron chips and granular coke was studied as a potential technique for decolorization of dye-containing aqueous solutions. GC and chemical coagulation by inorganic metallic coagulants such as iron sulfates (Fe2+, Fe3+) were examined for the removal of individual dyes, used in the fur industry, from model aqueous solutions. The role of metal cations when progressively electrogenerated in situ was compared to when they are added simultaneously. The superio...
Autori: Marina R. Sizykh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27526

A series of column experiments were conducted to study volatile contaminant (benzene) removal and process principles using soil vapor extraction (SVE) under different thermal conditions. Compared with the normal SVE method, two thermal methodssteam injection and electrical resistance heating effectively increased the benzene vapor diffusion and removal rates. The removal efficiency of benzene with the electrical resistance heating method was 96.5%, which was significantly higher than that with t...
Autori: Peng Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27534

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

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

Plant growth promoting rhizobacteria (PGPR) serve as an alternative tool in sustainable agriculture. PGPR influence the heavy metal accumulation of crops in contaminated soils, either by decreasing or increasing the accumulation. This study focuses on the effect of plant growth-promoting rhizobacteria on the heavy metal uptake, plant growth and stress response of bean plants. The simultaneous treatment of Cd2+ and Mitsuaria chitosanitabida T310-2/4 (PGPR strain) as well as Zn2+ and bacteria resu...
Autori: Éva Boglárka Vincze
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27554

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

Chemical oxidation of pyrite and chalcopyrite by ferric sulfate (Fe2(SO4)3) solution and biogenic ferric iron obtained by mixed culture of isolated thermotolerant Acidithiobacillus sp. 13Zn and Leptospirilum ferriphilum CC immobilized on natural carriers- zeolite and shungite was studied. Oxidation rate of sulfide minerals was estimated by the decrease of Fe3+ (oxidant) and increase of Fe2+ ions in the solution. It was revealed that chemical oxidation of chalcopyrite by biogenic ferric iron occu...
Autori: Arevik Vardanyan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27563

Estrogens excreted by humans and animals are groups of endocrine disruptors, which degrade rapidly in soil and water as reported. This review focuses on biodegradation of estrone (E1), 17β-estradiol (E2) and 17α-ethynylestradiol (EE2) in surface water, STPs (sewage treatment plants), manure, soil and sediments, and illustrates possible pathways and mechanisms. In general, half-lives of EE2 are much longer than E1 and E2, because an ethinyl group at one hydroxyl group containing C-atom...
Autori: Hai-Liang Song
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27571

Livestock production is under growing public and scientific scrutiny for its greenhouse gas (GHG) emissions. This article contains a preliminary assessment of the inclusion of upstream life-cycle GHG emissions in concentrated feeds design, using the most common nonlinear programming optimization algorithms to determine feed composition. First, GHG emissions are included as costs in a single criteria optimization problem. The unit price of GHG emissions was obtained using a genetic algorithm. Sec...
Autori: Ricardo F.M. Teixeira
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27572

According to EU Strategy for the Baltic Sea Region, Lithuania obligates to ensure sustainable growth, gain and maintain good condition of marine environment until 2020. In accordance with the sustainability approach, every potential cost and energy cutting as well as social sustainability measure for wastewater treatment should be explored. Nonetheless, Lithuania wastewater treatment plants (WWTP) in the sustainability context have never been evaluated before. A comprehensive set of 30 sustainab...
Autori: László Gyenge
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27578

Simulation experiments were conducted to investigate the behaviour of ozonation by-products and the removal of organic matter in the treatment of the Pearl River raw water. The treatment processes include pre-ozonation, conventional treatment processes (coagulation/sedimentation and sand filtration), post-ozonation and granular activated carbon (GAC) filtration. Treatment efficiency of each unit process was evaluated by using several parameters such as permanganate index (CODMn), ultraviolet abs...
Autori: Yue Wu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27580

According to EU Strategy for the Baltic Sea Region, Lithuania has to ensure sustainable growth, gain and maintain good condition of marine environment until 2020. In accordance with the sustainability approach, every potential cost and energy cutting as well as social sustainability measure for wastewater treatment should be explored. Nonetheless, Lithuania wastewater treatment plants (WWTP) in the sustainability context have never been evaluated before. A comprehensive set of 30 sustainable dev...
Autori: Jolanta Dvarionienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27583

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

This paper presents the results of experimental tests on polymer concrete prepared with different wastes. Two types of polymer concrete mixes were compared. The control polymer concrete was obtained with epoxy resin, natural aggregates in two sorts (0-4 mm and 4-8 mm) and fly ash waste used as filler. To the control mix, both sorts of natural aggregate were replaced in different dosages by polystyrene granules waste. The influence of polystyrene granules as substitution of aggregate on density, ...
Autori: Andrei Burlacu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27599

Phenolic compounds are known as recalcitrant pollutants in many industrial wastewaters, e.g. olive mill wastewater. An efficient treatment is therefore needed before the discharge of phenol-containing wastewaters into the environment. The possibility of removing some natural occurring phenolics, namely tyrosol, p-coumaric acid and vanillic acid, by micellar-enhanced ultrafiltration (MEUF) using a cationic surfactant, cetylpyridinium chloride (CPC), and polyethersulfone membranes of 20 and 50 kDa...
Autori: Abdelilah El-Abbassi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27607

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

Tobacco is one of the most important agricultural products in the Republic of Macedonia. Elemental composition of tobacco and soil from different agricultural areas was studied for monitoring purposes. The main purpose was to determine the intensity of accumulation of various elements in tobacco plants and to determine possible relationships between certain chemical and physical properties of soils (pH, clay, cation exchange capacity - CEC, organic matters - OM and total organic carbon - TOC). T...
Autori: Biljana Jordanoska
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27625

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

Aiming at river network in a complicated river-lake system, a new water environmental carrying capacity (WECC) calculation method was presented based on multi-objectives including water quality objectives for rivers, water quality objectives for control sections, pollution zones length at the sewage outlets and pollution zones area at the external lake inlets. The river network to the northwest of Lake Taihu was selected as the study area. Based on this new method, the WECC fluctuation was an...
Autori: Hua Wang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27627

Polycyclic aromatic hydrocarbons (PAHs) are very hazardous compounds. This investigation is the third in a series of three experiments carried out in conventional wastewater treatment plants with regard to PAHs. The first experiment regarded the analysis of PAHs in a municipal wastewater sewage system and in the wastewater treatment plant (WWTP) effluent, followed by a comparison between the observed removal efficiency and FATE model (US-EPA) predictions. The second experiment was carried out in...
Autori: Vincenzo Torretta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27629

Water is currently becoming a strategically important material, and the importance of water and wastewater treatment technologies is therefore increasing. Wastewater from the food industry has many special features originating from its high organic matter content. Meat industry wastewater additionally has a high fat content. We investigated the effects of ultrafiltration and ozonation, individually and in combination, for the treatment of meat industrial wastewater. Ozone gas was generated from ...
Autori: Cecilia Hodúr
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27631

The growth of a non-axenic Phormidium bigranulatum-dominated mat was tested under a range of chemical parameters and types of substrate. Total biomass yield (in term of mg chlorophyll a) of mats grown on muslin cloth (0.64 mg) and cotton mesh (0.62 mg) were significantly higher than those on other substrates, such as, nylon net (0.50 mg), sands of river Sone (0.43 mg) and river Ganga (0.30 mg), rice husk (0.38 mg) and saw dust (0.21 mg). The Phormidium mat would be easy to handle in bioremdation...
Autori: Dhananjay Kumar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27635

The present study aims to examine and model the adverse effects of vehicular emission on urban air quality and consequently on human health. It will facilitate the town planners to quantify the ill effects of vehicle generated air pollutants on human health to enable them to decide due weightage to be given to this attribute at planning level. Allahabad, a metropolitan city of India has been selected as the study area. Monitoring was conducted at various locations in the study area to evaluate t...
Autori: Binay K. Singh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27638

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 mineralization of azo dyes could be realized through solar photocatalytic degradation that is a green method where non-harmful end products are produced. The aim of this study was to investigate the mineralization of Orange G (OG) and New Coccine (NC) using ZnO as catalyst. The degradation of the azo dyes was conducted at different experimental conditions, and parameters such as effect of sunlight to the degradation rate, initial azo dye concentration, amounts of catalyst dosage, pH and effe...
Autori: Wan Fadhilah Khalik
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27643

The performance of microbial fuel cells (MFC) employing an earthen plate as a membrane separator is compared to that using Nafion 117 in an identical up-flow dual-chambered cylindrical cell configuration. The MFC configuration is of a cylindrical outer cathode chamber separated by the membrane from a concentric rectangular inner anode chamber. The fuel cells, operated under continuous mode at hydraulic retention time of 12 hr, achieved average chemical oxygen demand removal efficiency of 60% and...
Autori: Partha Sarathi Jana
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27649

The Chinese government has established ambitious low-carbon targets and various low-carbon development strategies in recent years, showing a strong will for low-carbon governance. However, these strategies can only take effect by transferring into strong actions in practice. This paper, therefore, reviewed the effectiveness of these policies towards low-carbon economy at the governmental, organizational and personal levels. Literature, interview and internet surveys are adopted in the investi...
Autori: Wang Nannan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27664

This paper proposes a study on the estimation of daily solar irradiation (global and diffuse irradiation) under real-sky conditions and the validation of proposed estimation models by analyzing the most important statistical indicators. Two types of regressions are proposed for the estimation of solar daily global irradiation; the first type is based on the second order degree Ångström-Prescott correlations; the second type uses the second order Ångström-Prescott correla...
Autori: Elena Eftimie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27670

This study explores the sustainable development of organic farms and organic farming in Taiwan by analyzing leisure services and the relationship between farmers and their entrepreneurial goals. Internet searches were used to identify 120 organic leisure farms in Taiwan with their own websites, which were subjected to content analysis. The researchers then mailed questionnaires to each Taiwanese organic farm for which a full mailing address could be located. A total of 403 valid questionnaire...
Autori: Tsung Hung Lee
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27671

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

Several studies have been conducted in various fields comparing Mamdani and Sugeno fuzzy inference systems (FISs). This study contributes to the literature by comparing the performance of Mamdani and Sugeno hierarchical fuzzy systems (HFSs) in terms of their technical performance within the context of environmental impact assessment (EIA), a multi-criteria decision analysis (MCDA) method, with the aim of illuminating practical issues that need to be taken into account during application. The con...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27681

The objectives of this study were to investigate: a) whether the duration of organic farming influences the dimension, shape and geometry (fractal dimension) of soil micropores (<50μm) and b) for relationships of morphometric traits with certain chemical and biochemical soil variables (microbial biomass, N- and C-mineralization rates, NH4+, NO3-, organic C and N, extractable P, Mg+2, K+, Ca+2). We compared soil micromorphometric traits (area, perimeter, compactness, solidity, eccentricity)...
Autori: Nikolaos Monokrousos
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27682

Unlike other vegetables, mushroom production requires several substrate ingredients, energy to sterilize the substrate, water to humidify the fruiting house and waste management of the spent substrate and used materials. This work studied the environmental impacts and eco-efficiency of sajor-caju mushroom (Pleurotus sajor-caju (Fr.) Sing.) production in terms of climate change potential, acidification potential, water depletion potential and fossil fuel depletion potential, using life cycle asse...
Autori: Siriprapa Ueawiwatsakul
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27685

This paper presents decentralized and centralized decision-making conditions based on consumer carbon sensitivity and carbon tax policy in a supplier-driven two echelons supply chain. The analysis shows that: 1) the optimal emission reduction amount under centralized decision-making is more than that under decentralized decision-making; 2) the carbon tax should be levied properly because the carbon emission reduction will decrease as the carbon tax is higher than a critical value; 3) the consume...
Autori: Lan Bai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27691

Though Scirpus triqueter plays an important role in protecting the ecological functions of Yangtze River estuary wetland which is frequently contaminated by petroleum, knowledge is limited about the mechanisms involved. In this study, comparative analysis of soil properties, microbial community structure and soil enzymes in the rhizosphere of S. triqueter and bulk soil was conducted throughout one year to provide an insight into the phytoremediation mechanism in the field. The total petroleum hy...
Autori: Jing Wei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27697

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

This paper aims to identify the influencing factors of the acceptable amount of compensation (AAC) of farmers for controlling fertilizer-induced water pollution, and build a valid ecological compensation mechanism to curb the water impact. To this end, the ecological compensation for farmers is viewed as a good way to reduce fertilizer-induced pollution at drinking water sources, and the opportunity cost is introduced into the discussion of farmers’ AAC. To avoid the gaps of previous studi...
Autori: Jie Lin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27781

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

Higher Education Institutions in Palestine are considered to have one of the main contributors to solid waste generation according to local authorities’ annual reporting. Besides being major players in the education field, they are presented with the opportunity of being also key players in the promotion of waste minimization and awareness raising towards solid waste management strategies. In the present paper the results of an extended field research in the Palestinian Higher Education...
Autori: Issam A. Al-Khatib
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27769

Changing wastes into raw materials is one of the most favored options for waste management, as it diverts wastes from landfill and saves resources. Fibers, either vegetable (cellulosic) or synthetic, may be added to cement pastes in order improve the properties of concrete or mortar by reinforcement. At the same time, if the source of fibers is wastes, then such processes make ways for recycling. In the work described here we studied the compatibility of residues from the nonwoven textile indust...
Autori: Hugo Monteiro
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27766

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

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

This paper investigated the compressive strength and thermal conductivity of water and air cured Portland cement-fly ash-silica fume mortars. The results showed that density, compressive strength and thermal conductivity of blended cement mortars with fly ash were lower than Portland cement control. However, blended cement mortars that contained silica fume as replacement cement both in binary and ternary phase were higher than fly ash mixes and tends to increase with increase silica fume used a...
Autori: Chalermphan Narattha
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27731

Petroleum hydrocarbons not only are toxic to humans and other living organisms, but will also pollute groundwater. It is thus critical to decrease the concentration of these pollutants in soil. Phytoremediation is an effective way to remove toxic compounds from soil. The current study used sorghum (Sorghum bicolor (L.) Moench) and barley (Hordeum vulgare) to reduce petroleum hydrocarbon content of contaminated soil around Isfahan Oil Refinery (Isfahan, Iran) and assessed the concentrations of pe...
Autori: Farida Iraji Asiabadi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27741

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

A study was conducted to determine the composition and concentration of trace metals in suspended particulate matter (PM10) and indoor dust in two academic buildings of Universiti KebangsaanMalaysia. One building was in the final phases of renovation (UR) and the other building had just finished renovation (AR). PM10 sampling of air was performed using a low volume sampler (LVS), and samples of indoor dust were obtained using a brush and a small plastic bag. The compositions of trace metals in b...
Autori: Mohd Talib Latif
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27758

The research has been focused on concretes in which the continuous phase is some kind of polymeric resin and the discrete phase is some type of mineral aggregate. Such composite materials are known as Polymer concretes (PC) and boast several advantages such as lower weights, higher resistance to corrosive environments and chemical attacks, faster curing and lower permeabilities. In PC the inorganic fraction can reach up to 90% of the total and is made up of aggregates such as sand and gravel. Th...
Autori: Paolo Pozzi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27799

This paper exposes the research activities regarding REBAF (Energetic Recover of River Biomasses) project, focused on the maintenance operations self-sustainability of the Secchia river (Italy). Poplar was found as the most abundant and representative wood plant of Secchia riverbanks, with a good behavior during gasification process: from 1 hectare of maintenance every three year, it was possible to produce 23 MWh of electrical power and 31 MWh of thermal power. The biochar obtained was characte...
Autori: Vittorio Vezzali
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27804

Environmental pollution has become a major global problem. However, despite increased environmental investment, studies have not clarified whether environmental pollution has been effectively controlled. On the basis of 1998-2014 panel data on three types of industrial waste from 31 mainland China provinces, a stochastic frontier analysis (SFA) model was used to estimate the input efficiency of environmental governance in China, explore the overall characteristics of input efficiency, and explor...
Autori: Ye Zheng
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27862

Hepatitis A virus (HAV) is well known as a major public health problem, with a high index of occurrence especially in regions and environments with poor sanitation and water quality. From a biochemical viewpoint, acute hepatitis A virus infection is revealed by the considerably elevated serum transaminase levels and by bilirubin metabolism disorders, since it may often be clinically asymptomatic. Our paper is aimed at analyzing the evolution and significance of biochemistry tests for this type o...
Autori: Andrei Vâță
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27860

Tunisian fish-processing industries generates large amounts of by-products. Their disposal is an increasing environmental and health problem. For an economic utilization, these by-products may be used in producing higher value-added products such as protein hydrolyzates. In this study, protein hydrolyzates with different degrees of hydrolysis (12%, 20% and 26%) were prepared from heads and viscera of Sardinella aurita using crude protease of Bacillus licheniformis NH1. The obtained hydrolyzates ...
Autori: Nabil Souissi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27852

In this study, application of integrated anaerobic-aerobic membrane sequencing batch reactor (MSBR) for treatment of an azo dye-containing wastewater was investigated. For this purpose, three lab-scale MSBR systems were operated at various hydraulic retention times (HRT) of 48, 24 and 16 h with constant value of solid retention time (SRT) for all reactors. The treatment performance and the decolorization kinetic of the systems as well the fouling rate of the membranes were evaluated during the e...
Autori: Maryam Hasani Zonoozi
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27851

Transesterification is one of the main biodiesel production method that produces huge amount of wastewater due to the high organic substance content (COD =300000-400000 mg/L, oil and grease= 17000-25000 mg/L). Although there are several treatment methods, flotation is the current conventional treatment method for oil and grease (O&G) before the biological treatment. In this study solvent extraction method was developed for pre-refining of biodiesel wastewaters. For the solvent extraction met...
Autori: Pınar Tanattı
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27850

This study was carried out to determine the feasibility of applying a freeze concentration technique to rarefy milking wastewater using either a stationary wastewater vessel (the first series of tests) or a rotary ice–making machine (the second series of tests). In this study, we investigated the impact of freezing temperature, initial milking wastewater concentration and vessel depth upon the removal rate of chemical oxygen demand (COD). Results show that when the freezing temperature ...
Autori: Yingjie Dai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27845

This paper presents the results of experimental researches regarding the optimization of a decontamination process through thermal desorption of soils contaminated with crude oil. The optimization was performed for the following desorption parameters: heating temperature of the soil and the treatment duration, by increasing the temperature from 300°C to 350°C and decreasing the treatment duration from 10, 15 and 20 minutes to 5, 10 and 15 minutes. The economic calculation of the decontam...
Autori: Dorina Pop
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27846

The aim of this paper is to determine the influence of desulphurization on process efficiency and monoethanolamine (MEA) absorption capacity. The experiment was conducted on a circulating fluidized bed combustion (CFBC) which uses indigenous coal from Jiu Valley. We determined the absorption capacity of MEA considering three values of concentrations in the solution: 20%, 30% and 40%. It was noticed that the higher the concentration of MEA is in the solution, the greater is the influence in th...
Autori: Cristian Dincă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27879

In this study, the flocculating properties of different cactus juice preparations were assessed using synthetic and real industrial and leachate wastewaters. It was found that the crude CJ had a flocculating activity (FA) of 89 ± 2.2% which is significantly higher than that of a powdery sample derived from a 60°C oven-dried CJ sample and which was about 37.8 ± 2.5%. Interestingly, both crude and dried samples showed the ability to flocculate kaolin suspensions within a wide ...
Autori: Moncef Khadhraoui
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27887

Sand contamination is an important factor when assessing the health hazard potential of public beaches. The goals of this study are to assess the performance of four sand washing procedures on the removal of surface adsorbed chemical species, and to identify which chemical components are best suited for monitoring the health quality of beach sand. Four washing treatments were investigated: contact, stirring, sonication, and boiling. Sand samples were collected from three Portuguese beaches an...
Autori: Mário Dias Almeida
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27890

The aim of this study was to determine how temperature conditions (max. 72oC, 81oC and 43.5oC) during sewage sludge composting affect the distribution of organically bound heavy metals in humic substances (HS). To accomplish this, the content of Cu, Ni, Zn and Fe was measured in the two main fractions of HS, humic acids (HAs) and the fulvic fraction (FF). In the feedstock, the FF was mainly responsible for binding all metals except Ni. During composting in the two series with thermophilic con...
Autori: Dorota Kulikowska
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27894

In order to reduce Cr(VI) and Cr(III) simultaneously, a double microbial fuel cell (MFC) system was employed to treat Crcontaining wastewater. Cr(VI)-MFC used Cr(VI) as a catholyte to supply the generated power to Cr(III)-MFC, while the latter MFC functioned as an external load resistor of the former one. Buffer characteristics of the catholyte greatly affected the reduction of chromium ions. At an initial pH of 2.0, Cr(VI) removal increased from 49.9% to 99.9% when KH2PO4 was added. Keeping ...
Autori: Fang Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27896

In this work, we report a methodology to provide emission factors based on micro-reactor studies. We propose emission factors for ammonia (NH3, 158 mg/km), nitrous oxide (N2O, 322 mg/km) and molecular hydrogen (H2, 72 mg/km) for vehicles equipped with three-way catalytic converter (TWC). Our experimental conditions were similar to those prevailing on vehicles during catalyst light-off and transient urban driving cycle. NH3 and H2 emission factors reported in this work are quantitatively simil...
Autori: Gustavo Ariel Fuentes
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27899

The utilization of inorganic carbon by the red macroalgae, Gracilaria edulis (G. edulis) was investigated in this study. G. edulis were grown in brackish water aerated with varying concentration of carbon dioxide - 350 ppm (actual atmospheric carbon dioxide, CO2), 700 ppm and 1400 ppm CO2 gas. Higher growth rate was observed in culture medium aerated with 1400 ppm CO2 and the lowest growth rate was observed at actual atmospheric carbon concentration. Besides that, significant pH drift was obs...
Autori: Lavania-Baloo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27900

Sustainable development is a key issue for the modern world economy. A solution for reducing the impact of carbon dioxide emissions on climate change and for compensating depletion of conventional energy resources relies on green economy and renewable energy. Polytechnic University Timisoara has a pioneering role in research and applications of solar energy to industrial and residential systems in Romania. The "Renewable Energies - Solar Energy" master program has been introduced fo...
Autori: Ioan Luminosu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27901

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 study, Mg-doped ZnO nanoparticles with 2% Mg content were synthesized by sol-gel method. The structure and morphology of the nanoparticles were characterized by TEM, BET and UV-Vis absorbance techniques. From TEM image, it was found out that the nanoparticles had uniform size and uniform distribution. BET analysis revealed that in comparison with pure ZnO, Mg 2%/ZnO nanoparticles had a higher specific surface area. Based on UV-Vis absorbance analysis, Mg 2%/ZnO nanoparticles shifted t...
Autori: Nahide Zarei
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27909

Electrically charged particles of air pollutants show the degree of atmospheric pollution they being consistent with some chemical indicators of air pollution. This study analyses these indicators of atmospheric pollution (EIAP) present in various zones around the cities of Iasi, Bacau and Piatra Neamt and correlate them with the incidence of some diseases amongst the population. The results show that certain values of electrical indicators of atmospheric pollution point to a higher incidence...
Autori: Liliana Sachelarie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27916

The objective of this paper is to investigate eco-efficiency in a durable goods manufacturing system. It is intended to apply a method used in a company producing heating devices within the boiler sector. A hybrid methodology is used to assess the eco-efficiency of manufacturing processes, based on combining Material Flow Analysis, Life Cycle Assessment, and Material Flow Cost Accounting. This provides an effective approach to evaluate environmental and economic performance in the context of ...
Autori: Aldona Kluczek
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27918

Among all the prominent contributors of municipal solid waste (MSW), schools have been chosen for the study since the rate of solid waste generation and its respective composition has not been reported or rather has been underestimated in the schools of Puducherry region. Hence, the present paper is an attempt to fill up this gap in our knowledge. The existing waste management system in selected schools was unsystematic and relatively scarce to meet the waste management objectives in precise ...
Autori: Rajamanikam Ramamoorthy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27921

Drinking water treatment aims to avoid or minimize some risks to human health and to provide adequate water quality by removing physical, chemical and biological contaminants. However, treatment processes require increasing efforts in terms of technology, chemicals and energy inputs, which generate increased secondary environmental impacts and added water production costs. The objective of this study is to evaluate the drinking water treatment plant (DWTP) in Iasi City (Romania) by life cycle...
Autori: George Barjoveanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27922

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

In recent years companies have become more interested in the implementation of sustainability principles in their business activities. However, despite the improvements in their practices, an increase in the amount of general consumption often exceeds the achieved progress. Thus, it is essential to consider that the relation between consumption and production should be evaluated systematically and technological approaches are not enough to realize the goal of sustainable consumption and produ...
Autori: Gintė Jonkutė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27931

The theoretical and computational studies of dye sensitized solar cells (DSSCs) can contribute to a deeper understanding of these types of solar cells. The DSSCs are the novel design of solar cells which could be used as power producing windows or skylights. They represent a particular promising approach to a direct conversion of sunlight into electrical energy at low cost and with high efficiency. The light adsorption occurs in dye molecules adsorbed on a highly porous structure of TiO2 film...
Autori: Nnditshedzeni Eric Maluta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27932

The education for sustainable development (ESD) in Taiwan’s higher education institutions with 160 universities and colleges plays a leading role in promoting sustainable campus since the 1990s. This article was based on the documents of official and non-profit organizations attempting to review ESD policy and programs for pursuing environmental sustainability in these institutions. These mission-oriented programs include sustainability education curriculum, sustainable campus infrastru...
Autori: Wen-Tien Tsai
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27936

Agro-industrial waste are seen as potential precursors in the development of adsorbents for the removal of phenolic compounds, which exhibit a harmful effect to human health due to their high toxicity. This work evaluated the use of coal prepared from coconut tree agro-industrial waste, for the adsorption of phenol in aqueous solutions. Three coal samples were prepared as follows: carbonized only (Cb), activated with synthetic air (Cair) and activated with CO2 (CCO2). Based on the results of ...
Autori: Marta Duarte
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27937

Sustainable management of transboundary rivers, especially in water-scarce regions is increasingly becoming more challenging due to the collective adverse impact of upstream development and climate change on transboundary scale. Two major tributaries of the Tigris River, the Diyala (Sīrvān) and the Lesser Zab River basins, are shared between Iraq and Iran. They were adopted as representative basins for a large number of transboundary rivers, where short-sighted perspectives are curr...
Autori: Furat Al-Faraj
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27938

• ENVIRONMENTAL CHANGES IN NORTH-EASTERN ROMANIA – A TRIGGER FACTOR FOR LYME DISEASE    • HYDROGEOCHEMISTRY AND ENVIRONMENTAL ISOTOPE COMPOSITIONS AND THEIR EVOLUTION IN GEOTHERMAL GROUNDWATER IN YIZHANG, HUNAN PROVINCE, CHINA    • CONSTRUCTION OF A BIOGAS HEAT STORAGE GREENHOUSE ECOSYSTEM UNDER THE CONTEXT OF WATER POLLUTION RESULTING FROM LIVESTOCK BREEDING    • ENVIRONMENTAL NOISE: HEALTH AND POLICY - AN UP TO DATE MINIREVIEW  &nb...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27946

• ENVIRONMENTAL CHANGES IN NORTH-EASTERN ROMANIA – A TRIGGER FACTOR FOR LYME DISEASE    • HYDROGEOCHEMISTRY AND ENVIRONMENTAL ISOTOPE COMPOSITIONS AND THEIR EVOLUTION IN GEOTHERMAL GROUNDWATER IN YIZHANG, HUNAN PROVINCE, CHINA    • CONSTRUCTION OF A BIOGAS HEAT STORAGE GREENHOUSE ECOSYSTEM UNDER THE CONTEXT OF WATER POLLUTION RESULTING FROM LIVESTOCK BREEDING    • ENVIRONMENTAL NOISE: HEALTH AND POLICY - AN UP TO DATE MINIREVIEW  &nb...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27947

• ENVIRONMENTAL CHANGES IN NORTH-EASTERN ROMANIA – A TRIGGER FACTOR FOR LYME DISEASE    • HYDROGEOCHEMISTRY AND ENVIRONMENTAL ISOTOPE COMPOSITIONS AND THEIR EVOLUTION IN GEOTHERMAL GROUNDWATER IN YIZHANG, HUNAN PROVINCE, CHINA    • CONSTRUCTION OF A BIOGAS HEAT STORAGE GREENHOUSE ECOSYSTEM UNDER THE CONTEXT OF WATER POLLUTION RESULTING FROM LIVESTOCK BREEDING    • ENVIRONMENTAL NOISE: HEALTH AND POLICY - AN UP TO DATE MINIREVIEW  &nb...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27968

Atrazine is a herbicide used widely with a large quantity in Thailand and can contaminate in surface and groundwater. This work investigated atrazine removal from an aqueous solution by catalytic photodegradation using oxides of metal-cerium-zinc (M-Ce-ZnO, M = Ag, Fe, and Cu). ZnO is texturally modified with sticky rice starch template, doped with cerium (Ce) and either Ag, Fe, or Cu with the M:Ce:Zn molar ratio of 0.005:0.005:1. The catalysts were characterized by XRD, UV-Vis-DRS, and N2 adsor...
Autori: Pummarin Khamdahsag
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27974

The paper presents the experimental results obtained on cement concrete with different types of waste and the analysis of their effects on density, compressive strength, flexural strength and splitting tensile strength. The tests results were compared with a control mix without aggregate substitution. The fly ash was used as replacement of cement and polystyrene granules, chopped plastic bottle (PET) and wood waste were used as substitution of 0-4 mm aggregate sort in different dosages from 0% t...
Autori: Vasilică Ciocan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27978

Little is known about the degradation kinetics of sewage sludge, sanitized with Ca(OH)2, in soil. Thus, this work aimed to monitor the degradation of limed sludge, under field conditions, when applied on soil surface or incorporated into the soil. The limed sludge was applied in dystrophic Inceptisol at a dose of 500 kg ha-1 yr-1 of total nitrogen. The mineralization process in the soil was monitored for 131 days. Samples of organic material were collected for analysis of total and easily oxi...
Autori: Isabela Diniz
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27995

With the rapid development of electric vehicles (EV), more and more EV batteries will intensively face the retirement. If they are treated improperly, EV batteries might pose a serious threat to human health and environment. Therefore, recycling spent EV battery is full of significance. However, the recycling system and specific policies have not be well established in China. This paper aims to evaluate several recycling subsidy policies being considered and tested in China for their influenc...
Autori: Xin Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28002

Ambient temperature can modulate neurotransmission in the peripheral nervous system. Transmission at the neuromuscular junction is also influenced by ambient temperature. Myasthenia Gravis (MG) is an autoimmune disease of the neuromuscular junction characterized by impaired transmission of the nerve impulses to the muscle fibers. The aim of the study was to determine if there is in fact a statistically significant correlation between environmental fluctuations and MG exacerbations among myast...
Autori: Dan Iulian Cuciureanu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28004

Bangladesh is highly vulnerable to climate change along with the adverse impacts of climate change. This paper aims to reveal the debates about climate change and extreme weather events. It considers Bangladesh as a case to understand the debates, the impacts of climate change on people’s livelihoods. This paper used secondary sources to select and scrutunize recent literatures about climate change, extreme events, the impacts of climate change on livelihood patterns and future trends. ...
Autori: Shah Md. Atiqul Haq
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28006

This paper deals with the degradation kinetics of an anionic surfactant (sodium dodecyl sulfate, SDS) under UV and UV-H2O2 advanced oxidation process (AOP). Experiments were performed in a batch reactor which emits monochromatic light centered at 253.7 nm. The photon flux of the UV reactor was 1.9(±0.1)×10-4 Einstein/L-min. Under direct UV, only 45% SDS degradation was observed at a fluence of 40.65 J/cm2 for initial SDS concentration of 0.35 mM. The apparent fluence-based pseudo...
Autori: Bijoli Mondal
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28013

Based on the dynamic panel data from 29 administrative regions in China over the period of 2003-2013, we applied GMM system method to the analysis of the relationship between financial development, economic growth and CO2 emissions. Empirical analysis indicates that economic growth is usually accompanied by higher CO2 emissions, while the increasing level of final development is associated with a reduction in CO2 emissions. Further analysis shows that the relationship between financial develo...
Autori: Shushu Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28023

Groundwater recharge is an effective method to solve the groundwater overexploitation. In this study, the method of numerical simulation is used to discuss the environmental change of groundwater in the process of multi-source recharge. The results of multiple water sources including local regenerated water source, wetland water source and South-to-North water source show that the cumulative loss of groundwater resources in Mihuaishun area in 2007 ~ 2016 reaches -1.784 × 109 m3. The inf...
Autori: Dasheng Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28024

The limited availability of fossil fuels, as well as the already proven effects of global warming, highlight the need for alternative, environmentally-friendly energy generation. Consideration of primary energy inputs from new and renewable energy resources and technologies represent a major scientific challenge, and a major innovation if realized. This will open up new opportunities for benefit and realized value, in the form of lower costs of energy supply, through the utilization of indige...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28027

This article addresses CO2 dynamics in school classrooms and analyses the improvement of ventilation and indoor air quality resulting from the simple window-opening ventilation strategies. CO2, temperature and relative humidity were measured in four different naturally ventilated classrooms of a Northeastern Portuguese education institution for a wide range of environmental conditions. Indoor CO2 levels were also simulated with a numerical model to help manage the indoor air quality of these ...
Autori: Filipe Rodrigues
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28030

After the recent global financial and economic crises, unemployment, especially among young people have become a particularly serious problem. Fostering young entrepreneurship represent not only a tool to combat young unemployment and social exclusion but also a way to encourage innovation and a country’s economic growth. Education and training can contribute in building an entrepreneurial society and may shape individuals attitudes versus risk-taking. Risk taken ability is an important...
Autori: Ana Iolanda Vodă
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28038

In this work we aimed to examine the influence of the main abiotic factors (temperature, rainfall, relative humidity, atmospheric pressure) on the synthesis of active compounds (phenolics, flavonoids), with antioxidant and therapeutic effect of two herbs - Capsella bursa-pastoris (shepherd's purse) and Marrubium vulgare (horehound) collected from two different areas of Romania: Dobrogea (Constanta) and Muntenia (Bucharest). The studies have shown that biogenesis and accumulation of second...
Autori: Elena Neagu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28041

The concept of the sustainable development which is defined in terms of the triple bottom line (economic, environmental and social) is becoming increasingly important. Until now, however, the social aspects have been under-investigated in comparison to environmental and economic aspects. From the product design point of view there is an emergency for development tools and methodologies that are directly linked with the social pillar of sustainability. The research has as main target to discover ...
Autori: Nikolaos Efkolidis
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28052

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

Salinization occurs in natural conditions as a result of a complex of factors such as climate, topography, and hydrogeology. Salinity principally occurs in sub-humid to arid regions but secondary salinization is a consequence of direct human activities it extends by the day. In the field, soil salinity is deduced from apparent electrical conductivity (ECa) by using a range of devices. Although a number of proximal sensors have recently been used worldwide to simplify fieldwork, few studies using...
Autori: Mihai Buta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28069

Most people is aware that outdoor air pollution can impact human health, including indoor air pollution. Human exposure to air pollutants indicate that indoor levels of pollutants may be two to five times, and occasionally more than 100 times, higher than outdoor levels. These levels of indoor air pollutants are of particular concern because most people spend about 90 percent of their time indoors. In this manuscript we monitored indoor pollutants in a school building with two different methodol...
Autori: Patrizia Aversa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28072

In this study, the effectiveness of integrating ultrasound with mangosteen fruit peel activated carbon (MFPAC) for the removal of reactive black 5 (RB5) dye was investigated. MFPAC prepared by the potassium carbonate activation method was characterized using BET, SEM and FTIR. The effects of ultrasound power, contact time, pH and adsorbent quantity on the removal of RB5 were examined. Obtained results indicate that the MFPAC has a higher removal efficiency with ultrasound integration and can re...
Autori: Randeep Singh
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28093

The increase of population and the bad management of municipal solid waste (MSW) lead to a spectacular increase of the landfill leachates volume. These effluents represent a very harmful threat that can affect the environment and the ecosystems, their control and treatment became the first occupation of the authorities. In this context, this study contributes to characterize the landfill leachate composition and how its changes over different seasons. The results have shown an intermediate leac...
Autori: Soukayna Rhouat
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28100

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

Aim of the study is to determine Fe, Mn and Cd adsorption in the carbonate-rich clayey soils and to assess their environmental impacts. Soil samples represented a carbonate-rich clayey soil (Isaoren), carbonate-rich soil (Maşuk) and clayey soil (Aşık) was obtained from three different villages in Sanliurfa, southeast of Turkey. Adsorption studies were carried out with batch method. The maximum Fe, Mn and Cd adsorption was found on Isaoren, Maşuk and Aşık soils with ...
Autori: Ayse Dilek Atasoy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28116

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

The production of food wastes is a serious issue in developed and developing countries. The biogas production technology is one of the most sustainable methods for treating food wastes. Currently, there is a great need to implement suitable methods to enhance biodegradation and methane production. This study investigated the effect of manure addition and leachate lime-pretreatment on the biogas and methane production from spoilable municipal solid wastes using a hybrid anaerobic-aerobic bioreact...
Autori: Fatemeh Aliasgari
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28123

The aim of the study was to determine the relation between the composition of university recyclable material collected (plastic, paper, metal and glass), education-related factors such as the academic calendar and work stoppages, and regional factors such as climate, regional economy and composition of the urban waste collected over an 8-year period. The study was conducted based on the composition of recyclable dry solid wastes at the Federal University of Rio de Janeiro, quantified after th...
Autori: Victor Becker Tavares
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28127

This study aims to measure the environmental concern in Romania, to investigate its state of fact at regional and county levels and to provide a better understanding of its determinants. Using data from World Values Survey (2010-2014), there were firstly analyzed the perceptions (care for environment, perspective on environmental pollution, alternative between protecting environment vs. economic growth), then active participation (membership in an environmental organization, financing ecological...
Autori: Simona-Roxana Ulman
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28147

Molybdate anions are used in a lot of fields and represent an essential trace element for plant and animal life; however, excessive amounts can cause adverse effect on various organism and environment. Therefore, in the present paper the adsorption performance of MgnFe- layered double hydroxides in the removal process of molybdate from aqueous solutions was studied. The layered double hydroxide (LDH) was synthesized by co-precipitation at low oversaturation method. Different ratio between Mg and...
Autori: Alin Golban
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28152

Soluble dyes are intensively used in various industrial activities. They represent an important class of water pollutants from which they are rather difficult to remove. This paper focusses on the elimination of Congo Red (CR) ionic azo dye by adsorption on a low cost material. Cherry stones were used for activated carbon preparation by carbonization method. A temperature of 600 °C and a time of 4 h were found as adequate parameters for the physical activation and led to a final white powder...
Autori: Cristina-Gabriela Grigoraș
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28153

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

Apart of new equipment’s development such as absorption columns with higher efficiency, for chemical industry, there is a strong need for greenhouse gases reduction in order to assure the environmental protection and, consequently, many studies regarding the purification methods of exhausted gases have been performed. There are several types of reactors used for gases purification, such as: bubbling jet reactor, combined packed and spray tower absorber, cable wet scrubber and packed column...
Autori: Elisabeta Droniuc Hultuana
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28160

Growth rate and biomass yield in the case of Arthrospira platensis depend on nutrient availability, temperature and light, which can determine changes in the metabolism and therefore in the biomass composition. The aim of this study is to evaluate the behavior of A. platensis during the growing time in several liquid culture media and their influence on the yield of biomass production. The following culture media have been investigated in this sense: ARS, Zarrouk (Z), modified Zarrouk (MZ), eco...
Autori: Mariana Diaconu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28163

Sodium silicate, iron sulfate, magnesium sulfate, and zinc sulfate were used as the raw materials to prepare a new inorganic polymer flocculant, polysilicate ferric magnesium zinc (PSFMZ), using direct recombination. The effects of molar ratio of zinc to silicon, ratio of iron to magnesium, reaction temperature, and reaction time on deoiling rate were explored. The optimal synthesis conditions for the flocculant for the thermal-washing treatment of oily sludge were determined. Results showed tha...
Autori: Lanlan Yu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28165

The anthropic impact, having various forms, negatively changes the parameters of water quality and disturbs the living environment of benthic macroinvertebrates. The purpose of the present study is to present how the main sources of pollution influence the way of life of the benthic macroinvertebrates community. 20 quantitative benthic samples were collected from different benthic areas of the Bega River water during from June 2014 to February 2017. In addition to identify all the changes that o...
Autori: Adina Horablaga
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28178

This study aims to evaluate the properties of different wastes obtained from four red ceramic brick industries in the northern region of Santa Catarina, Brazil. The characterization of the clay brick waste (CBW) was performed using the XRD techniques, XRF, FTIR, DTA and SEM. Techniques to determine the pozzolanic activity, particle size, B.E.T. surface area and specific mass were used. The consumption of calcium hydroxide (CH) in the cementitious pastes with the CBWs was also measured. An app...
Autori: Adilson Schackow
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28184

Biological ammonium removal from wastewater requires coupling of nitrification and denitrification processes in respective aerobic and anaerobic conditions. This difference in environmental requirements pose a big challenge in the design of systems intended to effect both nitrification and denitrification processes. Alcaligenes faecalis strain No. 4, however, has both heterotrophic nitrification and aerobic denitrification abilities in aerobic conditions, eliminating the need to provide anaerobi...
Autori: Hung-Soo Joo
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28186

The mineral contents of leaf, leaf petiole, fruit and fruit peduncle during the early and late stages of the production cycle may explain differences in response to fertilization in several strawberry genotypes. The aim of this study was to evaluate the nutritional status of two strawberry cultivars grown in soil. The nutritional status was determined as the amounts of nutrients taken up by the strawberry plants and the nutrient distribution within various parts of the plants during the produ...
Autori: Antonio DomĂ­nguez
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28187

This present study, investigates the performance of activated sardine scale powder (ASSP)/ Cellulose acetate (CA)/Polyvinylpyrrolidone (PVP) and powdered activated carbon (PAC)/ Cellulose acetate (CA) / Polyvinylpyrrolidone (PVP) composites membranes prepared by phase inversion for the elimination of humic substances (HS) from aqueous solutions. The materials and composites membranes were characterized by FTIR, XRD, SEM analyses. Overall, the results exhibit the higher performance of ASSP /CA/ P...
Autori: Naziha Sid-Sahtout
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28199

Nine samples of recycled acrylonitrile butadiene styrene (ABS) with organic montmorillonite and fire retardants adding were combined to prepare ABS copolymer nanocomposites. A very good dispersion of clay and fire retardant was noticed in the recycled ABS (reABS) matrix. The effect of montmorillonite and fire retardants on the mechanical and thermal properties of the reABS nanocomposites was further investigated. Experimental results showed that the addition of organic montmorillonite increased ...
Autori: Tudor Mihai Simionescu
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28203

A numerical simulation was conducted to investigate the combustion characteristics and effects of Hydrogen-Hydrogen Oxygen (HHO) addition on performance and NOx emission of a spark ignition (SI) biogas engine. At a given operating condition, indicative work cycle Wi increases with increase of HHO, CH4 concentrations and load rate; but it decreases with engine speed increase and reaches peak value as variation of equivalence ratio and advanced ignition timing. Combustion temperature T and NOx con...
Autori: Bui Van Ga
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28204

LED waste quartz sand (LEDWS), which is a prominent by product of the LED manufacturing process, may contaminate the environment because it comprises specific heavy metals (e.g., As and Cu), which are hazardous ingredients to the environment when disposed of improperly. Therefore, this study investigated the use of light-emitting diode (LED) waste quartz sand to partially replace Portland Type I cement (OPC) to evaluate the feasibility of reusing it as a pozzolanic material. The SiO2, Na2O, and ...
Autori: Kae-Long Lin
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28207

Water shortage is one of the most worrisome issues around the globe, especially with the increase in the human population. Nowadays, attention has been drawn towards the reuse of greywater because of its large volume and low contaminants. In the present research, greywater samples were collected from different sources including; households, restaurants, mosques, laundries, guest houses and sport clubs in Mansoura city, Egypt. The counts of total coliforms, Escherichia coli, Enterococcus sp., Ps...
Autori: Samir Radwanhttp://www.ecozone.ro/reviste.php?RID=28221

Techniques such as composting, a controlled process of decomposition of organic materials, have become fundamental to minimize the problems associated with the organic fraction of urban solid waste, as the potential to cause damage to public health, the environment and, consequently, to economic and administrative aspects can be related to this kind of waste. Microbial activity is also highlighted as a relevant factor since the microorganisms are fundamental in the degradation of organic matter...
Autori: Priscila da Costa
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28222

The negative environmental impact of the shooting ranges occurs through shot and bullets containing metals that are harmful to the environment. The objective of this study was to investigate the changes in physicochemical properties and contamination with heavy metals in soils of two Lithuanian outdoor shooting ranges. Soil samples were collected from the outdoor rifle shooting ranges which differed in shooting activity. The higher concentrations of Pb were found in the shooting range (8272 mg ...
Autori: Gintarė Sujetovienė
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28227

Nutrients have been considered the main factor affecting microorganisms responsible for methane gas production during anaerobic digestion processes. In this study, the nutritional composition of some fruit wastes; mango (M), watermelon (W), pawpaw (P), their effects on methane gas production, and resulting energy values were assessed. Substrate samples for anaerobic digestion where prepared into various slurry treatments; M, W, P, WM, PW, MP, MWP and CONTROL. Proximate compositions of the subst...
Autori: Ogemdi Chinwendu Anika
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28233

In the current situation of increasingly urgent environmental problems, how to improve the capacity of green technology through spillover means based on the existing green knowledge and technology stock in the western region of China, so that the economy of the western region can move towards a low-carbon, coordinated and sustainable direction in a short period of time is worthy of our deep discussion. This study measured the carbon dioxide emissions and calculated the green total factor produc...
Autori: Xing Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28234

The migration of methanogen in coal seams have great significance to study the improvement of coal bed gas (CBM) production by injecting microorganisms.This study aims to identify the migration characteristics of methanogens in different rank coals. Methanobacteria migration test was carried out by using coal samples of different particle sizes in the different rank coals. The results show that the maximum relative bacterial absorbance of a Qianqiu mine 18-35 mesh sample was 0.68, higher than th...
Autori: Hao Chen
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28236

Poor management of health care waste (HCW) is still recurrent in developing countries, as HCW control thought legislation is recent in many of these countries. One challenging factor that contributes to this is the lack of representative quantification of HCW generation. This kind of indicator is important, principally for hospitals as significant HCW generator, in order to obtain a better waste management. In this context, the aim of this study is proposing a quantitative estimation of HCW gene...
Autori: PatrĂ­cia AlbernĂĄz Melo Ribeiro
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28238

Two dairy farms (one a semi-confinement system and the other a pasture-based system) in the same region of Spain were chosen for comparison from a life cycle assessment perspective. In both cases, cattle feeding was found to be the main contributor to environmental impact in most categories. Additionally, cow emissions to air were the principal contribution to the global warming, fine particulate matter formation and terrestrial acidification categories. Although cow productivity in the pasture...
Autori: Amanda Laca
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28243

The aims of the paper were to determine the contamination of fluoride in edible plants, meat and poultry products in contaminated areas. The urine samples from 373 village health volunteers living in 21 villages in Ma Khuea Chae sub-district, Lamphun province, Thailand, were collected and the fluoride concentration was measured by Ion Selective Electrode. Their village health volunteers were selected for further surveys regarding the consumption of edible plants, meat and poultry products which...
Autori: Sanhawat Chaiwong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28247

Air pollutants have harmful effects on the human health and exacerbate morbidity and mortality. The aim of this study is to assess the short-and long-term effects of the suspended particulate matter with the diameter of smaller than 2.5 μm (PM2.5), nitrogen dioxide (NO2), and ozone (O3) on the mortality cases in city of Kerman in 2016 and 2017. In this study, AirQ+ software presented by European Center for Environment and Health and World Health Organization (WHO) was employed. Daily mean con...
Autori: Mohammad Malakootian
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28255

Growth of city population and migration of communities lead to higher accumulation of heavy metals in coastal areas of the Caspian Sea suburbs. In the present study there are represented geographical and ecological locations and environmental monitoring results of the Caspian Sea offshore and coastal area near Akshukyr (Aktau suburbs). The shallow offshore near Aktau city and adjacent areas were monitored in cooperation with the Institute of Ocean Sciences. Sea water analysis carried out specia...
Autori: Nurgul Janaliyeva
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28263

The heavy dependence on fossil-based energy and inefficient use of energy add to the relentless growth of carbon emissions in China, and also lead to an array of serious environmental pollution issues, such as haze and smog. This situation threatens the health of residents and the sustainable development of society. China has to face the huge pressure of carbon emissions from international and domestic societies. This study aims to investigate the demographic driving factors of carbon emission ...
Autori: Yan Li
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28265

From the perspective of Micro-Low-Carbon Economy, this paper studies the low-carbon manufacturing decision model of manufacturing enterprises considering carbon emission trading and green technology input under the carbon cap. The paper shows that the manufacturing enterprises have optimal output and this is unique under the carbon cap. The low-carbon manufacturing decision is addressed under three situations: carbon emission trading, green technology input and joint decision. The research shows...
Autori: Ma Changsong
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28279

The micro-evidence of the relationship between environmental protection and economic growth is still at the level of descriptive research and case analysis, and it is difficult to reflect the overall relationship between environmental pollution status and enterprise development models. This paper analyzes the sales growth model of industrial enterprises in Hubei Province by using micro data of industrial enterprise observations in 2004 and industrial sales growth rates of 2005-2009, and analyzes...
Autori: Yan Hua Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28280