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Researchers used carbon-based cathodes to enhance direct bioelectrochemical denitrification in biofilm-electrode reactors, finding that oxygen functional groups play a crucial role in the process.

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Abstract

Key findings

  • Carbon-based cathodes with oxygen functional groups significantly improved denitrification rates compared to traditional cathodes.
  • The presence of oxygen functional groups on the cathode surface increased the electron transfer rate and facilitated the reduction of nitrate.
  • The biofilm-electrode reactor with carbon-based cathodes showed improved stability and efficiency in denitrification compared to traditional systems.

Keywords

Denitrifying bacteriaDenitrificationMicrobial fuel cellCathodeCarbon fibersBiofilm

Identifiers

DOI
10.1016/j.carbon.2017.03.062
Journal
Carbon
Year
2017