ABSTRACT
The microbial fuel cells (MFC) are the bio electrochemical system which provides conversion of chemical energy available in substrate into electricity using catalytic activity of electrogens. MFCs have been one of the most studied systems for applications in electricity production and simultaneous wastewater treatment as compared to other available bio-electrochemical systems because they can simultaneously accomplish both energy production and resolve environmental issues. MFCs are considered a promising sustainable technology for combating energy crisis using wastewater as substrates. The use of bacteria is preferred as inoculum in MFCs due to the capability of direct electron transfer from microbial cell membrane to the surface of electrodes. The electron transfer system during MFCs performance can be affected by the presence or absence of biocatalyst. The minimal nutritional requirement for growth and its efficient exoelectrogenic properties have led cyanobacteria to great interest in using MFCs as biocatalysts.
