Removal of natural organic matter from aqueous solutions by electrocoagulation
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...
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| Format: | Article |
| Language: | English |
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Kurdistan University of Medical Sciences
2014-06-01
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| Series: | Journal of Advances in Environmental Health Research |
| Subjects: | |
| Online Access: | http://jaehr.muk.ac.ir/article_40149_39846b480f37e9853a6e44d88204c5d0.pdf |
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| author | Masoomeh Askari Mahmood Alimohammadi Mohammad Hadi Dehghani Mohammad Mahdi Emamjomeh Shahrokh Nazmara |
| author_facet | Masoomeh Askari Mahmood Alimohammadi Mohammad Hadi Dehghani Mohammad Mahdi Emamjomeh Shahrokh Nazmara |
| author_sort | Masoomeh Askari |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-21T22:12:49Z |
| format | Article |
| id | doaj.art-81d42c305402471295add034c22bf67c |
| institution | Directory Open Access Journal |
| issn | 2345-3990 2345-3990 |
| language | English |
| last_indexed | 2024-12-21T22:12:49Z |
| publishDate | 2014-06-01 |
| publisher | Kurdistan University of Medical Sciences |
| record_format | Article |
| series | Journal of Advances in Environmental Health Research |
| spelling | doaj.art-81d42c305402471295add034c22bf67c2022-12-21T18:48:32ZengKurdistan University of Medical SciencesJournal of Advances in Environmental Health Research2345-39902345-39902014-06-01229110010.22102/jaehr.2014.4014940149Removal of natural organic matter from aqueous solutions by electrocoagulationMasoomeh Askari0Mahmood Alimohammadi1Mohammad Hadi Dehghani2Mohammad Mahdi Emamjomeh3Shahrokh Nazmara4Department of Environmental Engineering, Graduate School of the Environment and Energy, Islamic Azad University, Science and Research Branch, Tehran, IranDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Environmental Health, School of Health, Qazvin University of Medical Sciences, Qazvin, IranDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, IranNatural 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.http://jaehr.muk.ac.ir/article_40149_39846b480f37e9853a6e44d88204c5d0.pdfelectrocoagulationnatural organic matterbipolar and monopolaraluminumiron |
| spellingShingle | Masoomeh Askari Mahmood Alimohammadi Mohammad Hadi Dehghani Mohammad Mahdi Emamjomeh Shahrokh Nazmara Removal of natural organic matter from aqueous solutions by electrocoagulation Journal of Advances in Environmental Health Research electrocoagulation natural organic matter bipolar and monopolar aluminum iron |
| title | Removal of natural organic matter from aqueous solutions by electrocoagulation |
| title_full | Removal of natural organic matter from aqueous solutions by electrocoagulation |
| title_fullStr | Removal of natural organic matter from aqueous solutions by electrocoagulation |
| title_full_unstemmed | Removal of natural organic matter from aqueous solutions by electrocoagulation |
| title_short | Removal of natural organic matter from aqueous solutions by electrocoagulation |
| title_sort | removal of natural organic matter from aqueous solutions by electrocoagulation |
| topic | electrocoagulation natural organic matter bipolar and monopolar aluminum iron |
| url | http://jaehr.muk.ac.ir/article_40149_39846b480f37e9853a6e44d88204c5d0.pdf |
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