Microbial Fuel Cells (MFCs) are a type of bioelectrochemical system that uses microorganisms to convert organic matter into electrical energy. MFCs can be used in wastewater treatment to remove pollutants while simultaneously generating electricity. In an MFC, bacteria oxidize organic matter in the wastewater, creating electrons that flow through an electrical circuit, producing a current. The electrons also flow to the anode, where they accept protons and create water. The process generates electricity and also cleans the wastewater. The use of MFCs for wastewater treatment and energy production is a relatively new technology and is still under research and development. However, it has the potential to be a sustainable and cost-effective solution for treating wastewater and generating electricity. MFCs have the ability to generate electricity from a wide range of organic matter, such as wastewater from food processing plants, agricultural runoff, and even municipal sewage.

This makes them a promising technology for decentralized power generation and treatment of wastewater in remote areas or in areas where a traditional grid connection is not available. Microbial Fuel Cells (MFCs) are a type of bioelectrochemical system that converts chemical energy from organic matter into electrical energy using microorganisms. They are a promising technology for wastewater treatment and energy generation as they can convert organic pollutants present in wastewater into electricity. The basic design of an MFC consists of an anode and cathode compartment separated by a proton exchange membrane. Microorganisms are cultured in the anode compartment, where they oxidize the organic matter present in the wastewater, releasing electrons that flow through an external circuit, generating a current. At the same time, the electrons also flow to the cathode compartment, where they accept protons and create water. This process generates electricity while also cleaning the wastewater. MFCs can be used in a variety of settings, including wastewater treatment plants, food processing facilities, and agricultural operations.

They can also be used in remote locations or areas where a traditional grid connection is not available, making them suitable for decentralized power generation. MFCs are still in the research and development phase, but have the potential to be a sustainable and cost-effective solution for treating wastewater and generating electricity. In addition, the technology can be integrated with other sustainable technologies, such as solar power or wind power, to provide a more robust and reliable power source. With the growth of science and technology, the most of the developing and developed countries are facing many challenges like Global warming, water and energy crisis, Seasonal changes, the variation in the production of food grains etc. The increase in population leads to the demand of natural resources all over the world. As the natural resources are getting depleted in a faster manner, some actions have to be initiated for sustainable development. most of the developing countries are deeply helpless to change in water supply. India is one of such countries facing such problem.

The heavy increase in water demand and complex consumption patterns are the reasons for such problem.