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This study investigates the effects of voltage reversal on biocathode-based microbial fuel cells, analyzing treatment performance, electrochemical properties, and microbial communities.

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What they did

System
MFC

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Abstract

Key findings

  • Voltage reversal significantly impacts treatment performance, with a decrease in power generation and an increase in internal resistance.
  • Electrochemical analysis reveals a shift in the redox potential and a decrease in the exchange current density upon voltage reversal.
  • Microbial community analysis shows a change in the dominant microbial populations, with a decrease in the proportion of electrochemically active bacteria.

Keywords

Microbial fuel cellDielectric spectroscopyAnodeDenitrifying bacteriaCathodeInternal resistance

Identifiers

DOI
10.1016/j.cej.2020.125368
Journal
Chemical Engineering Journal
Year
2020