The entrance of various pollutants into the environment and the resulting problems led to the use of new methods for the purification of these pollutants and the recovery of energy contained therein. Nowadays, bioelectrochemical systems (BES) are considered as a new technology in the generation of electricity and wastewater treatment. Also, the use of fossil fuels, especially oil and gas, has accelerated in recent years resulting in a global energy crisis. Bio-Renewable energy is considered as one of the ways to reduce the current global warming climate. Modern production of electricity from renewable sources without much carbon dioxide emissions is much more favorable. The purpose of this chapter is to present a brief introduction on the use of bioelectrochemical systems and its various types including Microbial Fuel Cells (MFC), Enzymatic Biofuel Cells (EFC) and Microbial Electrolysis Cell (MEC).
Keywords: Bioelecterochemical Systems (BES), Bioenergy, Enzymatic Biofuel Cells, Microbial Fuel Cells, Microbial Electrolysis Cell, Wastewater Treatment.