文章基本信息

标题：Removal of natural organic matter from aqueous solutlons by electrocoagulatlon
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作者：Masoomeh Askarl ; Masoomeh Askarl ; Mahmood Alimohammadl 等
期刊名称：Journal of Advances in Environmental Health Research
电子版ISSN：2345-3990
出版年度：2014
卷号：2
期号：2
页码：91-100
DOI：10.22102/JAEHR.2018.135459.1086
语种：English
出版社：Kurdistan University of Medical Sciences
摘要：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/m3, 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.
关键词：Electrocoagulation; Natural Organic Matter; Bipolar and Monopolar; Aluminum; Iron