期刊
DESALINATION
卷 349, 期 -, 页码 94-101出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2014.06.027
关键词
Stainless steel mesh; Cathode membrane modification; Wastewater treatment; MBR/MFC
资金
- China National Natural Science Foundation [21177018]
- State Key Laboratory of Urban Water Resource and Environment [QAK201204]
TO increase effluent quality and membrane flux, membrane bioreactor was integrated with microbial fuel cell (MBR/MFC), in which functional cathode membranes could enable fouling reduction and even electro-catalytic pollutant degradation using the bin-generated electricity. Modifying stainless steel mesh (SSM) with only polypyrrole (PPy) or cheap ARS (Alizarin Red's) or expensive AQS (9,10-anthraquinone-2-sulfonic acid) doped PPy film, helped obtain high ORR (oxygen reduction reaction) activity and higher power output in the integrated MBR/MFC system. The ARS and PPy modified cathode membranes, could not only increase the degradation of (MB) methylene blue (>90%, 1 h), but also enable higher antifouling property infiltrations. Most importantly, replacing the blank SSM, the use of PPy/AQS, PPy/ARS and PPy modified SSM, increased power density 31.37, 27.06 and 23.7 times respectively in the integrated MBR/MFC system. The new system has great application potential and economic feasibility in effective removal of COD and NH4+-N nutrients, has better effluent qualities and has higher energy recovery. (C) 2014 Elsevier B.V. All rights reserved.
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