ABSTRACT
The exoelectrogenic microbe utilizes organic and inorganic substrate available in wastewater as fuel and produces current. Exoelectrogenic microbes produce electricity through transfer of electrons generated from metabolism activities to the anode of microbial fuel cell system. Microbial fuel cells have been used as a promising technology of power generation through the wastewater process by a few researchers. The oxygen reduction reaction at the cathode is frequently the restrictive aspect observed in microbial fuel cells, which has to focus on boosting the performances and reducing the cost. Microbial fuel cells require the separator for anode and cathode chamber, which may be provided by use of cation exchange membrane. The direct electron transfer mechanism indicates direct transfer of electron between electron carrier in the microbes and the cathode electrode in microbial fuel cells. Microbial fuel cell has become popular due to having dual advantages of good wastewater technology and energy recovery, rather than energy consumption for its operation.
