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Journal of Advances in Environmental Health Research، جلد ۲، شماره ۲، صفحات ۹۱-۰
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عنوان انگلیسی Removal of natural organic matter from aqueous solutions by electrocoagulation
چکیده انگلیسی مقاله Natural organic matter (NOM) affects some qualitative parameters of water such as color. In addition, it can deteriorate the performance of water treatment process including coagulation, adsorption, and membranes. NOM also reacts with chlorine in the chlorination process and may form disinfection by-products. The present study was carried out in laboratory-scale in a batch system using a cylinder shape reactor with effective volume of 2 l. The initial NOM concentrations during the study period were 10, 25, and 50 mg/l. After specific time intervals, samples were taken from the reactor and filtered. Finally, the NOM removal according to total organic carbon (TOC) content of the samples that were analyzed with a TOC analyzer. The results showed that the highest NOM removal efficiency for three initial concentrations 10, 25, and 50 mg/l were 91, 94, and 82%, respectively. These removal efficiencies were obtained at pH 7, contact time of 20 min, and electrical current of 0.1 A. The electrical energy consumption was 0.08, 0.06, and 0.03 kWh/m 3 , respectively. In this study, the application of electrocoagulation (EC) treatment method using combined Al and Fe electrode was examined to remove NOM from aqueous solution. Based on the obtained results, the EC can be used as an effective method for removing NOM from aqueous solution.
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نویسندگان مقاله معصومه عسکری | masoomeh askari
department of environmental engineering, graduate school of the environment and energy, islamic azad university, science and research branch, tehran, iran

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

محمود علی محمدی | mahmood alimohammadi
department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

محمد هادی دهقانی | mohammad hadi dehghani
department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

محمد مهدی امام جمعه | mohammad mahdi emamjomeh
department of environmental health, school of health, qazvin university of medical sciences, qazvin, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی قزوین (Qazvin university of medical sciences)

شاهرخ نظم آرا | shahrokh nazmara
department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://jaehr.muk.ac.ir/index.php/jaehr/article/view/86
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زبان مقاله منتشر شده en
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