مرور Volume 6, Issue 1 بر اساس عنوان
در حال نمایش موارد 1 - 20 از 25
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Adsorption Isotherm Modeling of Phenol Onto Natural soils – Applicability of Various Isotherm Models
(University of Tehran/Springer, 2012-01-01)Liquid-phases adsorption equilibrium of phenol onto two naturally available soils namely Kalathur soil (Kr) and Adhanur soil (Ar) were studied. The experimental data were analyzed using fourteen isotherm models, ranging ...
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Bioaccumulation of Heavy Metals in Fish Species Collected From Former Tin Mining Catchment
(University of Tehran/Springer, 2012-01-01)This study has been carried out to determine the accumulation of heavy metals (arsenic, copper, lead, tin and zinc) in fish samples collected from former tin mining catchment. Total eight types of fish family having fifteen ...
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Bioaccumulation of Metals in Tissues of Solea Vulgaris from the outer Coast and Ria de Vigo, NE Atlantic (Spain)
(University of Tehran/Springer, 2012-01-01)Ría and coastal zone are, in particular, vulnerable to heavy metals pollution. Concentrations of 10 metals in liver, muscle and kidney of the sole (Solea vulgaris) from Ría of Vigo and its coastal zone (Spain) were measured ...
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Biochemical Kinetics of Cross flow Membrane Bioreactor Processes in the Treatment of Refinery Wastewater
(University of Tehran/Springer, 2012-01-01)A lab-scale cross flow membrane bioreactor (CF-MBR) was operated to determine the biokinetic coefficients under MLSS concentrations of 5000 and 3000 mg/L. The investigation showed that the yield (Y), the endogenous decay ...
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Comparative Study on Startup Performance of UAHR and UASB Reactors in Anaerobic Treatment of Distillery Spentwash
(University of Tehran/Springer, 2012-01-01)In this paper, startup performance of Upflow Anaerobic Hybrid Reactor and Upflow Anaerobic Sludge Blanket reactors in anaerobic treatment of distillery spentwash has been studied under identical conditions of operation. ...
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Cyanobacterium Microcystis aeruginosa Bloom in Aras Dam Reservoir
(University of Tehran/Springer, 2012-01-01)Occurances of cyanobacterial bloom typically appear in eutrophic lakes which either have been affected by anthropogenic nutrient loading or are naturally rich in nutrients. Microcystis blooms have been reported all over ...
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Direct Treatment of Settled Sewage by DHS Reactors with Different Sizes of Sponge Support Media
(University of Tehran/Springer, 2012-01-01)The down-flow hanging sponge (DHS) reactor, which was developed for post-treatment of effluent from up-flow anaerobic sludge blanket (UASB) process treating sewage, uses polyurethane sponge as media to retain biomass. ...
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Ecotoxicology of Nano-TiO2 – An Evaluation of its Toxicity to Organisms of Aquatic Ecosystems
(University of Tehran/Springer, 2012-01-01)The production and use of synthetic nanoparticles is growing rapidly, and therefore the presence of these materials in the environment seems inevitable. Titanium dioxide (TiO2) presents various possible uses in industry, ...
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Estimating Total Economic Value of Coral Reefs of Kish Island (Persian Gulf)
(University of Tehran/Springer, 2012-01-01)This paper is concerned with the economic valuation of the coral reef within Kish Island in Persian Gulf of Iran. For calculating this value, all components of use and non-use values are estimated and then according to ...
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Evaluating the Developed Countries Policy Making Toward Environmental Cases
(University of Tehran/Springer, 2012-01-01)Today, Economic and environmental performance are tightly closed to each other. The natural environment plays an important role in supporting economic activity; directly, by providing resources and raw materials such as ...
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Evaluating the Efficiency of Plantago Ovata and Starch in Water turbidity removal
(University of Tehran/Springer, 2012-01-01)In the current study, the efficiency of starch and Plantago ovata extract as coagulant aids is compared in water turbidity removal. The coagulant is ferric chloride and the experiments are run in two ranges of pH 7 and ...
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Evaluation of Anthropogenic Impacts on Soiland Regolith Materials Based on BCR Sequential Extraction Analysis
(University of Tehran/Springer, 2012-01-01)This study was conducted in Assaluyeh region, southwest of Iran to show utilization and efficiency of sequential extraction analysis in environmental impact studies using soil and related regolith materials as sample ...
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Hydrocarbon Degrading Microflora in a Tropical fuel-Contaminated Aquifer: Assessing the Feasibility of PAH Bioremediation
(University of Tehran/Springer, 2012-01-01)An aquifer located within a petroleum processing plant in Moín, Costa Rica, suffers hydrocarbon pollution. This study aimed to determine the ability of indigenous microorganisms from this site to degrade polycyclic aromatic ...
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In situ Measurement of Bioavailable Metal Concentrations at the Downstream on the Morava River using Transplanted Aquatic mosses and DGT Technique
(University of Tehran/Springer, 2012-01-01)This work summarized the results of a long term monitoring programme performed downstream on the Morava river (Czech Republic). During this programme the total dissolved concentrations and bioavailable fraction of selected ...
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The Influence of Land Based Activities on the Phytoplankton Communities of Shimoni-Vanga system, Kenya
(University of Tehran/Springer, 2012-01-01)Phytoplankton communities play a significant role in the oceanic biological pump by forming the base of the trophic structure. Increase in nutrients loading affects spatial and temporal distribution of phytoplankton. This ...
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An Investigation on As, Cd, Mo and Cu Contents of Soils Surrounding the Meyduk Tailings Dam
(University of Tehran/Springer, 2012-01-01)The contents of As, Cd, Cu and Mo were determined in soil surrounding Meyduk tailings dam based on 21 surface soil samples. Assessment of toxic element pollution in studied soil samples needs knowledge of pre-anthropogenic ...
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An Investigation on Vehicle’s Fuel consumption and Exhaust Emissions in Different Driving Conditions
(University of Tehran/Springer, 2012-01-01)In this paper, vehicle’s fuel consumption and exhaust emissions are investigated in different driving conditions based on driving segments clustering. Driving data collection is performed using global positioning systems ...
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Knowledge Analytical Approach on Promoting Environmental Management
(University of Tehran/Springer, 2012-01-01)Aim of the present research was to design a proper model for management of knowledge in environmental organizations of country. In study of the model, suitability of the proposed model was researched by asking views of ...
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Lessons From Multi-decadal Oceanographic Monitoring at an Estuarine Ecosystem in Argentina
(University of Tehran/Springer, 2012-01-01)Both climate change and anthropogenic impact are creating a dynamic of continuous changes in ecosystems. While the expected consequences of these changes are global, the occurrence of extreme events and specific environmental ...
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Machine Learning for Predictive Management: Short and Long term Prediction of Phytoplankton Biomass using Genetic Algorithm Based Recurrent Neural Networks
(University of Tehran/Springer, 2012-01-01)In the regulated Nakdong River, algal proliferations are annually observed in some seasons, with cyanobacteria (Microcystis aeruginosa) appearing in summer and diatom blooms (Stephanodiscus hantzschii) in winter. This ...
