Microbial Fuel Cells in Generating Electricity from Sewage Wastewater

The growing concern of environmental pollution due to the excessive exploitation of fossil fuel has shifted attention to a more renewable source of procuring energy one of them being the microbial fuel cells. The development of MFC is essentially based on the potential of bacteria to generate electrons by metabolizing the substrate (sewage wastewater, here). The mechanism of working of microbial fuel cells is mentioned. The use of sewage wastewater to tap electricity while simultaneously decreasing the COD (Chemical Oxygen Demand) level in the water for it’s safe disposal with efficient materials for the PEM (Proton Exchange Membrane), cathode, mediators etc. have been reviewed. The best mode of operation of MFC to generate maximum power density in both single and double chambered MFC has been explored