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A microbial fuel cell (MFC) study found that using paddling of activated carbon as an electrode resulted in higher energy output compared to graphite rods.

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Representative MFC — matched on the paper’s system type only, not its reactor or geometry.

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What they did

System
MFC

What worked

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Abstract

Traditional methods for wastewater treatment are associated with high energy consumption. This is why biological treatment of water is more appropriate at the moment. In our previous study, oxidation and reduction of pollutants have been proposed to be carried out in a microbial fuel cell (MFC) designed by our laboratory that simultaneously purifies wastewater from sulfide and nitrate ions and generates electricity. The experiments were carried out with two types of electrodes, graphite rods and paddling of activated carbon using a Fumapem® FFA-3-PK-75 (OH- form) membrane. The results show that the cell has higher energy output when using paddling of activated carbon as an electrode.

Key findings

  • Using paddling of activated carbon as an electrode increased energy output in MFCs.
  • Graphite rods were less effective as electrodes in MFCs compared to paddling of activated carbon.
  • The MFC design showed potential for wastewater treatment and electricity generation.

Keywords

Microbial fuel cellWastewaterElectrodeGraphiteActivated carbonPollutant

Identifiers

DOI
10.30721/fsab2018.v1.i2.6
Journal
Food Science and Applied Biotechnology
Year
2018