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This paper reviews the main factors influencing the electrical performance of Microbial Fuel Cells (MFCs) and discusses their application prospects and challenges.

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What they did

System
MFC
Substrate
real wastewater

What worked

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Abstract

Abstract As a bioelectrochemical hybrid system, microbial fuel cell converts chemical energy into electrical energy through microbial metabolism, which has great advantages of energy conservation and environmental protection, high energy conversion efficiency, and reduced sludge volume. Therefore, how to improve the power generation performance and output power of MFC has been a hot topic in recent years. Based on this, on the basis of reviewing many literatures, this review analyzes the main factors influencing the electrical performance of MFC by combining the principle of MFC and its electronic transfer mechanism, including battery reactor structure, exchange membrane, anode microorganisms, electrode materials and parameters, etc. At the same time, the application prospect of MFC is discussed, including CW-MFC coupling technology, biosensor and sewage treatment technology. Finally, the present challenges of MFC are put forward, and a better application research direction is proposed for the future of MFC.

Key findings

  • Battery reactor structure significantly affects MFC performance
  • Exchange membrane and anode microorganisms play crucial roles in MFC efficiency
  • Electrode materials and parameters also impact MFC output power

Keywords

Microbial fuel cellChemical energyProcess engineeringBiochemical engineeringAnodeBattery (electricity)

Identifiers

DOI
10.1088/1755-1315/555/1/012004
Journal
IOP Conference Series: Earth and Environmental Science
Year
2020