Leachate treatment using anoxic/oxic-bioelectrochemical reactor with intermittent aeration
Journal
Journal of the Taiwan Institute of Chemical Engineers
Journal Volume
58
Pages
401-406
Date Issued
2016
Author(s)
Abstract
A membraneless, 3.5-L bioelectrochemical reactor with biocathode and anoxic/oxic zones was established for treatment of raw landfill leachate. At 24 h hydraulic retention time and 3 kg chemical oxygen demand (COD) m-3 d-1 volume loading, the tested BES could remove 86.5% of 20100 mg L-1 (COD) and 97.9% of 1330 mg L-1 NH4+-N in raw leachate. The corresponding maximum power density (Pmax) was 2.85 Wm-3 and internal resistance Rint was 47.5£[ in aerating period, and was 2.70 Wm-3 and 52.5£[ in the non-aerating period. Owing to the efficient cathodic denitrification via BES reaction, the removal of total nitrogen can exceed 90%, much higher than those reported in the literature. ? 2015 Taiwan Institute of Chemical Engineers.
Subjects
Ammonium removal
COD removal
Denitrification
Landfill leachate
Type
journal article