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Antifouling potential and microbial characterization of an electrochemical anaerobic membrane bioreactor utilizing membrane cathode and iron anode
Zhao, Kai; Su, Fan; Gu, Kanghui; Qi, Jing; Liu, Ruiping; Hu, Chengzhi
2021-08
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume334Pages:-
AbstractSerious membrane fouling limits the application of anaerobic membrane bioreactors (AnMBRs) in sewage treatment. Herein, a novel electrochemical AnMBR (eAnMBR) was established by integrating electrocoagulation and a conductive membrane into an AnMBR. Compared with the traditional AnMBR, TP average removal rate increased by 24.97% and the membrane service cycle extended by 109.68% in the eAnMBR. Low extracellular polymeric substance concentration and large floc size were found in the mixed liquid of the eAnMBR due to the combined effect of coagulation and electric field, which induced a porous and hydrophilic cake layer, resulting in excellent water permeation capabilities. Additionally, the conductive membrane cathode effectively suppressed membrane fouling by the electrostatic repulsion and gas scouring. In the eAnMBR, the presence of an electric field and iron ions enriched the diversity of the microbial community, which may improve the adaptation of biochemical systems to environmental changes.
Department环境水质学国家重点实验室
KeywordAnaerobic membrane bioreactor Conductive membrane Electrocoagulation Membrane fouling Methanogenic pathway
WOS Research AreaAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/45905
Collection环境水质学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tsinghua Univ, Sch Environm, Ctr Water & Ecol, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Kai,Su, Fan,Gu, Kanghui,et al. Antifouling potential and microbial characterization of an electrochemical anaerobic membrane bioreactor utilizing membrane cathode and iron anode[J]. BIORESOURCE TECHNOLOGY,2021,334:-.
APA Zhao, Kai,Su, Fan,Gu, Kanghui,Qi, Jing,Liu, Ruiping,&Hu, Chengzhi.(2021).Antifouling potential and microbial characterization of an electrochemical anaerobic membrane bioreactor utilizing membrane cathode and iron anode.BIORESOURCE TECHNOLOGY,334,-.
MLA Zhao, Kai,et al."Antifouling potential and microbial characterization of an electrochemical anaerobic membrane bioreactor utilizing membrane cathode and iron anode".BIORESOURCE TECHNOLOGY 334(2021):-.
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