| In situ coupling of electrochemical oxidation and membrane filtration processes for simultaneous decontamination and membrane fouling mitigation | |
Wang, Zhiyong ; Zhang, Yong; Li, Kuiling; Guo, Jingjing; Yang, Chengfeng; Liu, Hongxin; Wang, Jun
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| 2022-06-01 | |
| Source Publication | SEPARATION AND PURIFICATION TECHNOLOGY
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| ISSN | 1383-5866 |
| Volume | 290Issue:0Pages:120918 |
| Abstract | Intimate coupling electrochemical oxidation (EO) and filtration using a reactive electrochemical membrane (REM) has shown promising results in the mineralization of refractory pollutants. In this work, a novel flow-through electrochemical membrane filtration (FEMF) process based on the EO and membrane filtration pro-cesses was designed to simultaneously degrade pollutants and mitigate membrane fouling. A flexible activated carbon fiber felt (ACFF) with excellent adsorptive property and polyvinylidene fluoride (PVDF) membrane were combined and functioned as the REM anode (ACFF/M). At a cell voltage of 3.0 V, the aniline (AN) removal efficiency and observed reaction rate constant (kobs) of the FEMF process were 97.5% and 3.36 x 10(-2) min(-1), respectively. The adsorptive property of the ACFF/M anode promoted the transfer of pollutants from the bulk solution to the electroactive region, which significantly enhanced the AN removal efficiency and reduced the specific energy consumption (SEC, 1.51 kWh/kg). Meanwhile, the in-situ decomposition of adsorbed-pollutants by direct electron transfer (DET) and reactive oxygen species (ROS) can renovate the adsorptive capacity of the ACFF/M anode. This FEMF process also showed good performance in the mitigation of membrane fouling. Our findings highlight the potential of the FEMF process for the cost-effective treatment of wastewater containing organic pollutants. |
| Department | 环境水质学国家重点实验室 ; 环境水质学国家重点实验室 |
| Keyword | SUPEROXIDE ION WASTE-WATER INDUCED DISPROPORTIONATION ORGANIC POLLUTANTS DEGRADATION ANILINE REDUCTION ELECTROOXIDATION GENERATION MECHANISM |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/47705 |
| Collection | 环境水质学国家重点实验室 |
| Corresponding Author | Wang, Jun |
| Affiliation | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, 18 Shuangqing Rd, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Natl Engn Lab Ind Wastewater Treatment, 18 Shuangqing Rd, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Zhiyong,Zhang, Yong,Li, Kuiling,et al. In situ coupling of electrochemical oxidation and membrane filtration processes for simultaneous decontamination and membrane fouling mitigation[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,290(0):120918. |
| APA | Wang, Zhiyong.,Zhang, Yong.,Li, Kuiling.,Guo, Jingjing.,Yang, Chengfeng.,...&Wang, Jun.(2022).In situ coupling of electrochemical oxidation and membrane filtration processes for simultaneous decontamination and membrane fouling mitigation.SEPARATION AND PURIFICATION TECHNOLOGY,290(0),120918. |
| MLA | Wang, Zhiyong,et al."In situ coupling of electrochemical oxidation and membrane filtration processes for simultaneous decontamination and membrane fouling mitigation".SEPARATION AND PURIFICATION TECHNOLOGY 290.0(2022):120918. |
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