Performance and Mechanisms of Ultrafiltration Membrane Fouling Mitigation by Coupling Coagulation and Applied Electric Field in a Novel Electrocoagulation Membrane Reactor
文献类型：期刊论文
| 作者 | Tong, Tiezheng; Sun, Jingqiu ; Elimelech, Menachem; Liu, Huijuan; Qu, Jiuhui; Zhao, Kai; Hu, Chengzhi
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 出版日期 | 2017-08-01 |
| 卷号 | 51期号:15页码:8544-8551 |
| 英文摘要 | A novel electrocoagulation membrane reactor (ECMR) was developed, in which ultrafiltration (UF) membrane modules are placed between electrodes to improve effluent water quality and reduce membrane fouling. Experiments with feedwater containing clays (kaolinite) and natural organic matter (humic acid) revealed that the combined effect of coagulation and electric field mitigated membrane fouling in the ECMR, resulting in higher water flux than the conventional combination of electrocoagulation and UF in separate units (EC-UF). Higher current densities and weakly acidic pH in the EMCR favored faster generation of large flocs and effectively reduced membrane pore blocking. The hydraulic resistance of the formed cake layers on the membrane surface in ECMR was reduced due to an increase in cake layer porosity and polarity, induced by both coagulation and the applied electric field. The formation of a polarized cake layer was controlled by the applied current density and voltage, with cake layers formed under higher electric field strengths showing higher porosity and hydrophilicity. Compared to EC-UF, ECMR has a smaller footprint and could achieve significant energy savings due to improved fouling resistance and a more compact reactor design. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39723]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Tong, Tiezheng,Sun, Jingqiu,Elimelech, Menachem,et al. Performance and Mechanisms of Ultrafiltration Membrane Fouling Mitigation by Coupling Coagulation and Applied Electric Field in a Novel Electrocoagulation Membrane Reactor[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(15):8544-8551. |
| APA | Tong, Tiezheng.,Sun, Jingqiu.,Elimelech, Menachem.,Liu, Huijuan.,Qu, Jiuhui.,...&Hu, Chengzhi.(2017).Performance and Mechanisms of Ultrafiltration Membrane Fouling Mitigation by Coupling Coagulation and Applied Electric Field in a Novel Electrocoagulation Membrane Reactor.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(15),8544-8551. |
| MLA | Tong, Tiezheng,et al."Performance and Mechanisms of Ultrafiltration Membrane Fouling Mitigation by Coupling Coagulation and Applied Electric Field in a Novel Electrocoagulation Membrane Reactor".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.15(2017):8544-8551. |
入库方式： OAI收割
来源：生态环境研究中心
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