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Microbial Fuel Cell: A New Source of Green Energy Kumar Mani Vinay*, Santhapur K. Rakesh** Department of Biotechnology, National Institute of Technology, Warangal-506 004 *E-mail: manivinaykumar@gmail.com
**E-mail: rakesh_santapur2@yahoo.com
Online published on 23 May, 2013. Abstract A microbial fuel cell is a device that converts chemical energy to electrical energy by the catalytic reaction of microorganisms. Microbial fuel cell technology represents a new form of renewable energy by generating electricity from what would otherwise be considered waste, such as industrial wastes or waste water etc. Microbial Fuel Cells have the potential to simultaneously treat wastewater for reuse and to generate electricity; thereby producing two increasingly scarce resources. It involves biological reactions converting chemical energy present in the bonds of organic compounds into electric energy, through the reactions of microorganism in aerobic conditions. Unlike other traditional methods of power generation it does not produce any toxic gases or chemicals into the environment. Biological treatment becomes more feasible and simpler with the use of MFC’s. Microbial fuel cells have a number of potential uses. The most readily apparent is harvesting electricity produced for use as a power source. Virtually any organic material could be used to feed the fuel cell, including coupling cells to wastewater treatment plants. Sludge production in the waste water treatment is expected to be less under MFC treatment when compared to other conventional methods, as the major part of energy stored in organic wastes is converted to electricity, and the remaining energy is utilized for microbial growth. The main economic gain from treating waste water with MFCs will be biological oxygen demand (BOD) removal efficiency without non-renewable energy consumption rather than municipal electric power generation. Top Keywords Microbial fuel cell, electrical energy, biological reaction, organic waste. Top | |
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