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Date:2019-03-11

Indexed by:Journal Article

Date of Publication:2017-10-01

Journal:WATER SCIENCE AND TECHNOLOGY

Included Journals:PubMed、EI、SCIE、Scopus

Volume:76

Issue:7

Page Number:1907-1914

ISSN:0273-1223

Key Words:bio-electrochemical wastewater treatment; membrane bioreactor; membrane cathode; microbial fuel cell; photosynthetic algae

Abstract:A competitive sewage treatment technology should meet the standard of water quality requirement and accomplish recovery of potential energy. This study presents such a new system, with coupled membrane bioreactor-microbial fuel cell features, which can not only treat wastewater, but also recovers energy from wastewater by electricity generation, and form a new resource by photosynthesis while providing the dissolved oxygen by algae. Specifically, in the system, the MnO2/polyaniline is used to modify the stainless steel mesh and to function well as system membrane and cathode, with satisfactory filtration and catalysis performance. The system enables continuous wastewater treatment with stable pollutant removal and electricity generation. Under the membrane flux of 119.4 Lm(-2) h(-1) , a maximum power density of 1.2 W m(-3) can be achieved, the algae multiply 6.1 times, and satisfactory wastewater treatment effect is achieved.