Treatment of domestic sewage with anoxic/oxic membrane-less microbial fuel cell with intermittent aeration
Journal
Bioresource Technology
Journal Volume
218
Pages
680-686
Date Issued
2016
Author(s)
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 2.05?W/m 3 at current density 6.05?A/m 3 , 91.7?¡Ó?0.3% chemical oxygen demand (COD) and 98.2?¡Ó?0.3% ammonia-nitrogen (NH 3 -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 NH 3 -N being converted to N 2 . When the circuit was opened, the COD removal was dropped to 81.1?¡Ó?0.6% and NH 3 -N to 80.4?¡Ó?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 NO 2 ? -N or NO 3 ? -N in effluent. Bioelectrochemical reactions in the tested MFC enhance COD and NH 3 -N removals from domestic sewage. ? 2016 Elsevier Ltd
Subjects
Ammonium-nitrogen
Dissolved organic matters
Domestic sewage
Removal
Type
journal article