Reza Rezaee
Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
[ 1 ] - Organic dye removal from aqueous media by using acid modified Clinoptilolite
Dyes are an important class of pollutants which when discharged into water resources can be toxic to the aquatic environment and cause serious problems for public health. Various treatment technologies such as adsorption are in use. For this reason, clinoptilolite was used as a low-cost adsorbent to remove color from aqueous solution. Clinoptilolite was modified with sulfuric and phosphoric aci...
[ 2 ] - Health impact assessment of exposure to PM10 in Ilam city using Air Q software
Air pollution is a major environmental issue in the world that can be harmful for human health. The aim of this study was to determine the health impacts of particulate matter with an aerodynamic diameter ≤10μm (PM10) in Ilam in 2013 and 2014. The air pollution data were obtained from the Ilam Department of Environmental Protection. The data were analyzed by Excel software, and...
[ 3 ] - Fabrication, characterization, and microscopic imaging of Fe2O3-modified electrospun nanofibers
This study explored the fabrication, characterization, and microscopic imaging of highly porous electrospun nanofibers based on pure and Fe2O3 nanoparticle modified polyacrylonitrile (PAN) fibers. The desired electrospinning mixture comprising polymer and nanoparticles in dimethyleformamide, was prepared. During electrospinning, the precursor solution was injected using a ...
[ 4 ] - The simultaneous removal of turbidity and humic substances from water using the enhanced coagulation process
This study aimed to investigate the efficiency of the enhanced coagulation (EC) process for the simultaneous removal of turbidity and humic substances (HS) from raw water from the Sanandaj Water Treatment Plant (SWTP). This study was conducted on a laboratory scale using a jar test device and ferric chloride (FeCL3) as the coagulant. Accordingly, the effects of pH and coagulant dosag...
[ 5 ] - Assessment of DMFT and its influencing factors in guidance school students in Pirnshahr city, Iran
DMFT index is one of the best dental epidemiological indices, which represent the oral health status of the population and has been accepted by authorities and international organizations such as the World Health Organization. The aim of this study was to assess the permanent teeth DMFT index in guidance school students to determine the influencing factors such as brushing, tea and sugar consum...
[ 6 ] - Simultaneous nitrification-denitrification in a sequencing batch reactor equipped with fixed Kaldnes carriers
The main aim of this study was to evaluate the performance of a modified sequencing batch reactor (MSBR) using fixed Kaldnes carriers fed with acclimated sludge for ammonium removal via simultaneous nitrification-denitrification (SND) in synthetic wastewater. The results exhibited a SND of 82.3% within a 450-minute cycle time which was higher than that of a SBR without carrier (69.83%). Nitrite...
[ 7 ] - Application of experimental design approach for optimization of the photocatalytic degradation of humic substances in aqueous solution using immobilized ZnO nanoparticles
Degradation of humic substances in water is important due to its adverse effects on the environment and human health. The aim of this study was modeling and investigating the degradation of humic substances in water using immobilized ZnO as a catalyst. ZnO nanoparticles were synthesized through simple coprecipitation (CPT) method and immobilized on glass plates. The immobilized ZnO nanocatalyst...
[ 8 ] - Evaluation of corrosion and scaling potential of drinking water supply sources of Marivan villages, Iran
Corrosion and scaling in drinking water sources can lead to economic and health damages. These processes produce by-products in distribution systems, reduce chemical water quality, and are the cause of health issues among consumers. The aim of this study was to evaluate the corrosion and scaling potential of water supply sources of Marivan villages, Iran. In total, 106 water samples were collec...
[ 9 ] - Photocatalytic removal of Acid Red 88 dye using zinc oxide nanoparticles fixed on glass plates
In this study, ZnO nanoparticles fixed on glass plates were employed as photocatalysts for the degradation of Acid Red 88 (AR88) dye in aquatic solution. ZnO nanoparticles were synthesized through coprecipitation method and fixed on glass plates. X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques were used for characterization of nanoparticle samples. A batch reactor equi...
[ 10 ] - Photocatalytic degradation of methylene blue dye over immobilized ZnO nanoparticles: Optimization of calcination conditions
In the present study, calcination conditions during the synthesis of zinc oxide nanoparticles were optimized using response surface methodology (RSM) based on central composite design (CCD). After that, the effect of the type of UV irradiation on the photocatalysis of methylene blue (MB) dye was studied based on the kinetic model obtained at optimum conditions. Analysis of variance (ANOVA) exhi...
[ 11 ] - Temporal and spatial variation of drinking water quality in a number of Divandareh villages, Iran: With emphasis on fluoride distribution
Fluoride is found in all water resources at different concentrations and drinking water is the major source of fluoride exposure. Thus, because of the adverse effect of fluoride in low and high concentrations, the evaluation of its content in drinking water is necessary. In the present study, the temporal variations and spatial distribution of fluoride concentrations in the drinking water of vi...
[ 12 ] - Investigation of potato peel-based bio-sorbent efficiency in reactive dye removal: Artificial neural network modeling and genetic algorithms optimization
Over the last few years, a number of investigations have been conducted to explore the low cost sorbents for the decontamination of toxic materials. Undoubtedly, agricultural waste mass is presently one of the most challenging topics, which has been gaining attention during the past several decades. Wastes are very cheap and easily available material in production of sorbent. Therefore, the Rea...
[ 13 ] - بررسی تغییرات سمیت رنگزای راکتیو سیاه 5 و دیسپرس نارنجی 25 در طی فرآیندهای اکسیداسیون پیشرفته
در این تحقیق، کاهش سمیت محلول رنگی حاوی دو رنگزای تجاری متداول شامل راکتیو سیاه 5 و دیسپرس نارنجی 25 بعد از فرآیند های فوتولیز و التراسونولیز با کمک پراکسید هیدروژن با تاکید بر اثرات انواع عوامل مؤثر بر روی روند رنگبری و بازده تخریب رنگزا بررسی شد. ارزیابی میزان سمیت با استفاده از دافینا مگنا انجام گردید. نتایج نشان داد که هر دو رنگزا واجد سمیت بر روی دافینا مگنا هستند. فرآیندهای فوتولیز و التر...
[ 14 ] - Determination of malachite green and leucomalachite green residues in rainbow trout in Sanandaj City
Background and Aim: Malachite green (MG) is an organic compound which his used as a dye in textile industry. This compound is applied incorrectly and illegally in aquiculture as an antimicrobial agent. This compound has mutagenic and carcinogenic effects. Materials and Methods: In this study we determined the concentrations of MG and leucomalachite green (LMG) in the muscle tissue of 90 rainbow...
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