title: Scalable microbial fuel cell (MFC) stack for continuous real wastewater treatment.
abstract: A tubular air-cathode microbial fuel cell (MFC) stack with high scalability and low material cost was constructed and the ability of simultaneous real wastewater treatment and bioelectricity generation was investigated under continuous flow mode. At the two organic loading rates (ORLs) tested (1.2 and 4.9kg COD/m(3)d), five non-Pt MFCs connected in series and parallel circuit modes treating swine wastewater can enable an increase of the voltage and the current. The parallel stack retained high power output and the series connection underwent energy loss due to the substrate cross-conduction effect. With continuous electricity production, the parallel stack achieved 83.8% of COD removal and 90.8% of NH(4)(+)-N removal at 1.2kg COD/m(3)d, and 77.1% COD removal and 80.7% NH(4)(+)-N removal at 4.9kg COD/m(3)d. The MFC stack system in this study was demonstrated to be able to treat real wastewater with the added benefit of harvesting electricity energy.
authors.affiliation: Guangdong Institute of Eco-environmental and Soil Sciences, Guangzhou 510650, China.
authors.forename: Li
authors.initials: L
authors.lastname: Zhuang
authors.forename: Yu
authors.initials: Y
authors.lastname: Zheng
authors.forename: Shungui
authors.initials: S
authors.lastname: Zhou
authors.forename: Yong
authors.initials: Y
authors.lastname: Yuan
authors.forename: Haoran
authors.initials: H
authors.lastname: Yuan
authors.forename: Yong
authors.initials: Y
authors.lastname: Chen
mesh_terms: D001674:Bioelectric Energy Sources; D057919:Biological Oxygen Demand Analysis; D004560:Electricity; D000644:Quaternary Ammonium Compounds / Q000032:analysis; D014865:Waste Disposal, Fluid; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*
chemical_list: D000644:Quaternary Ammonium Compounds