Ohmic resistance affects microbial community and electrochemical kinetics in a multi-anode microbial electrochemical cell.

ABSTRACT: Multi-anode microbial electrochemical cells (MxCs) are considered as one of the most promising configurations for scale-up of MxCs, but understanding of anode kinetics in multiple anodes is limited in the MxCs. In this study we assessed microbial community and electrochemical kinetic parameters for biofilms on individual anodes in a multi-anode MxC to better comprehend anode fundamentals. Microbial community analysis targeting 16S rRNA Illumina sequencing showed that Geobacter genus was abundant (87%) only on the biofilm anode closest to a reference electrode (low ohmic energy loss) in which current density was the highest among three anodes. In comparison, Geobacter populations were less than 1% for biofilms on other two anodes distant from the reference electrode (high ohmi

SUBMITTER: Dhar BR 

PROVIDER: S-EPMC7376749 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature