Simultaneous removal of organic matter and nitrogen compounds by partitioned aeration in a 226 L-scale microbial fuel cell† † Electronic supplementary information (ESI) available. See https://doi.org/10.1039/d2ra01485h

ABSTRACT: Although microbial fuel cells (MFCs) have been widely studied as wastewater treatment technologies that convert organic matter to electricity, there are few reports of large-scale MFCs that treat both organic matter and nitrogen compounds. In this study, a 226 L reactor equipped with 27 MFC units was partially aerated at 10% of its total volume. The MFC unit consists of a cylindrical air core covered with a carbon-based air cathode, an anion exchange membrane, and a graphite non-woven fabric anode. The air-cathode MFC with 13 L min−1 aeration rate produced a current density of 0.0012–0.15 A m−2 with 40 to >93% biological oxygen demand (BOD) removal to have an effluent BOD of <5–36 mg L−1 at a hydraulic retention time (HRT) of 12–47 h. Meanwhile, 55 ± 17% of the total nitrogen (TN) was remo

SUBMITTER: Yamane T 

PROVIDER: S-EPMC9115875 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature