title: Evaluation of energy-distribution of a hybrid microbial fuel cell-membrane bioreactor (MFC-MBR) for cost-effective wastewater treatment.
abstract: A low-cost hybrid system integrating a membrane-less microbial fuel cell (MFC) with an anoxic/oxic membrane bioreactor (MBR) was studied for fouling mitigation. The appended electric field in the MBR was supplied by the MFC with continuous flow. Supernatant from an anaerobic reactor with low dissolved oxygen was used as feed to the MFC in order to enhance its performance compared with that fed with synthetic wastewater. The voltage output of MFC maintained at 0.52±0.02V with 1000Ω resister. The electric field intensity could reach to 0.114Vcm(-1). Compared with the conventional MBR (CMBR), the contents rather than the components of foulants on the cake layer of fouled MFC-MBR system was significantly reduced. Although only 0.5% of the feed COD was translated into electricity and applied to MBR, the hybrid system showed great feasibility without additional consumption but extracting energy from waste water and significantly enhancing the membrane filterability.
authors.affiliation: State Key Laboratory of Seperation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China. Electronic address: wangjie@tjpu.edu.cn.
authors.forename: Jie
authors.initials: J
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Seperation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China; School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Fanghua
authors.initials: F
authors.lastname: Bi
authors.affiliation: Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia.
authors.forename: Huu-Hao
authors.initials: HH
authors.lastname: Ngo
authors.affiliation: Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia.
authors.forename: Wenshan
authors.initials: W
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Seperation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Jia
authors.affiliation: State Key Laboratory of Seperation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
authors.forename: Hongwei
authors.initials: H
authors.lastname: Zhang
authors.affiliation: School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China.
authors.forename: Xinbo
authors.initials: X
authors.lastname: Zhang
mesh_terms: D000693:Anaerobiosis; D001674:Bioelectric Energy Sources; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D003102:Colloids / Q000737:chemistry; D003362:Cost-Benefit Analysis; D004560:Electricity; D008567:Membranes, Artificial; D010100:Oxygen / Q000737:chemistry; D055672:Static Electricity; D062065:Wastewater; D018508:Water Purification / Q000191:economics / Q000379:methods*
chemical_list: D003102:Colloids; D008567:Membranes, Artificial; D010100:Oxygen; D062065:Wastewater
keywords: Electric field; Energy-distribution; Membrane bioreactor; Membrane fouling; Microbial fuel cell