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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
2022-06-01
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume290Issue:0Pages:120918
AbstractIntimate 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
KeywordSUPEROXIDE ION WASTE-WATER INDUCED DISPROPORTIONATION ORGANIC POLLUTANTS DEGRADATION ANILINE REDUCTION ELECTROOXIDATION GENERATION MECHANISM
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47705
Collection环境水质学国家重点实验室
Corresponding AuthorWang, Jun
Affiliation1.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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