This report provides a comprehensive review of several research papers focusing on the application of Microbial Fuel Cells (MFCs) for the treatment of landfill leachate and the generation of sustainable energy. The papers explore various aspects of MFC technology, including different substrates used, experimental setups, and the effectiveness of MFCs in electricity production and leachate treatment. The research highlights the potential of MFCs as a bioenergy source, capable of converting organic waste into electrical current. The review discusses the methodologies employed, such as qualitative and quantitative research designs, data collection methods, and statistical analysis. The studies also compare different MFC configurations, electrode materials, and operational parameters to optimize performance. The findings indicate that MFCs can effectively reduce chemical oxygen demand (COD) and biological oxygen demand (BOD) in leachate while generating electricity. The report also addresses the limitations and challenges associated with MFC technology, such as the impact of internal resistance, the need for improved electrode materials, and the scalability of the technology. The report emphasizes the importance of MFCs in enhancing sustainable energy production and providing an economical solution for leachate treatment.