title: Treatment of domestic sewage with anoxic/oxic membrane-less microbial fuel cell with intermittent aeration.
abstract: An anoxic/oxic microbial fuel cell (MFC) reactor was applied to treat domestic sewage with intermittent aeration at cathodic chamber. The MFC yielded maximum power density of 2.05W/m(3) at current density 6.05A/m(3), 91.7±0.3% chemical oxygen demand (COD) and 98.2±0.3% ammonia-nitrogen (NH3-N) removals could be reached with most of the hydrophilic (HPI), hydrophobic acid (HPO-A), transphilic acid (TPI-A) of the former being consumed with minimal residual aromatics and the most of NH3-N being converted to N2. When the circuit was opened, the COD removal was dropped to 81.1±0.6% and NH3-N to 80.4±0.9% with most of the HPI, TPI-A and hydrophobic neutral (HPO-N) fractions of the former being consumed with excess aromatic residue and 60% of the latter being converted to NO2(-)-N or NO3(-)-N in effluent. Bioelectrochemical reactions in the tested MFC enhance COD and NH3-N removals from domestic sewage.
authors.affiliation: Institute of Resources and Environment Engineering, Shanxi University, Taiyuan 030006, China; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
authors.forename: Guodong
authors.initials: G
authors.lastname: Zhang
authors.affiliation: Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan. Electronic address: djlee@ntu.edu.tw.
authors.forename: Duu-Jong
authors.initials: DJ
authors.lastname: Lee
authors.affiliation: Institute of Resources and Environment Engineering, Shanxi University, Taiyuan 030006, China.
authors.forename: Fangqin
authors.initials: F
authors.lastname: Cheng
mesh_terms: D001674:Bioelectric Energy Sources; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D004566:Electrodes; D009584:Nitrogen / Q000302:isolation & purification; D012722:Sewage / Q000737:chemistry; D018505:Waste Management / Q000295:instrumentation*
chemical_list: D012722:Sewage; D009584:Nitrogen
keywords: Ammonium-nitrogen; Dissolved organic matters; Domestic sewage; Removal