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This MFC study abstractThis study deals with the fabrication of a low‐cost ceramic anode made by blending the rice husk and mild steel dust with soil (RMS anode) for its application in plant microbial fuel cells (PMFCs). The high cost of electrode material has been a major concern in practical applications of the PMFC technology, but the present composition of waste materials such as rice husk, mild steel dust along with soil has served as an alternative low‐cost electrode material.

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What they did

System
MFC

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Abstract

AbstractThis study deals with the fabrication of a low‐cost ceramic anode made by blending the rice husk and mild steel dust with soil (RMS anode) for its application in plant microbial fuel cells (PMFCs). The high cost of electrode material has been a major concern in practical applications of the PMFC technology, but the present composition of waste materials such as rice husk, mild steel dust along with soil has served as an alternative low‐cost electrode material. Tagetes erecta plant has been used to produce clean and continuous electrical energy in the PMFC. The blending of rice husk has improved the porosity of the ceramic anode. The maximum power density recorded in PMFC with 50% rice husk anode was 1.4 mW/m² as against 0.26 mW/m² with the anode without rice husk. High biomass growth in terms of better plant height and higher chlorophyll content was also detected in the PMFC system within 60 working days.

Key findings

  • The blending of rice husk has improved the porosity of the ceramic anode.
  • The maximum power density recorded in PMFC with 50% rice husk anode was 1.
  • 4 mW/m² as against 0.
  • 26 mW/m² with the anode without rice husk.
  • High biomass growth in terms of better plant height and higher chlorophyll content was also detected in the PMFC system within 60 working days.

Keywords

HuskTagetesAnodeBiomass (ecology)CeramicMicrobial fuel cell

Identifiers

DOI
10.1002/fuce.202200074
Journal
Fuel Cells
Year
2022