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

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

Contain all the articles from this issue Risk assessment and management - tools for sustainable developmentMaria GavrilescuSustainable alternatives for petrochemical wastewater managementCarmen Teodosiu, Lidy E. Fratila-ApachiteiThe role and the place of oxidant reagents in wastewater treatmentIoan RoscaEnvironmental Psychology, a new direction in the psychological fieldCarmen Catalina IoanChanging concepts of high performance to socially sustainable organizationCostache Rusu, Nerida DavisU...
Autori: Abdelnaser Omran
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25166

Contain all the articles from this issue:ICEEM/01 -- Environmental Management Section Corporate environmental competence: A concept for characterising and assessing the environmental practice in companies and product chainsMichael Søgaard Jørgensen, 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 issueICEEM /02 PLENARY SESSION:"Environmental Engineering and Management in the Context of Sustainable Development"Green technology foresight of high technology: Hype of potentials - The challenges from nanotechnology, Biotechnology and ICTMichael Søgaard JørgensenIntrinsic properties of noble metals in catalytic selective reduction of NO by propene in lean burn conditionsAnne Giroir-Fendler, Helleh Saadallah, Adela HaletaICEEM/02 - ENVIRONMENTAL ENGINEERING ...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25178

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

Include urmatoarele articole:• Keynote Lectures Energy from municipal solid waste: large-scale incineration or small-scale pyrolysis?• Electrical properties of SnO2-Pt/Al2O3 in reduction atmosphere• Corporate management tools to address sustainability Challenges. A reflection on the progress and difficulties experienced during the last decade• Emerging academic responsibilities and opportunities for promoting regional sustainability• Challenges for integrated water resources management...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25200

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

Include urmatoarele articole:• "Waste not, want not" a study of household attitude toward recycling of solid wastes• A kinetic model for the crystal violet mineralization in water by the electro- fenton process• Development of a coagulation/flocculation predictive model for turbidity removal from tehran water treatment plants• Removal of cadmium (II) from aqueous solutions by sphagnum moss peat: Equilibrium study• Environmental sustainability based on fuzzy models• Impact of dust emi...
Autori:
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25207

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

AbstractThe cost sensitivity analysis of a chemical process was carried out through a sequence of three stages, using three different software applications. In the first stage an alkylation process was optimized with GAMS® software, the objective function being the profit. This optimization was repeated for the values of five different costs in the frame of a factorial experiment. In the next stage, the objective function-costs dependence was quantified with an artificial neural network, obtain...
Autori: Alexandru Woinaroschy
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25273

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

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

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

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

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