University Of Tehran Press Pollution 2383-451X 10 1 2024 01 01 Role of Methanotrophs in Methane Oxidation from Municipal Solid Waste Dumpsites in Tropical Countries 426 447 95591 10.22059/poll.2023.364991.2060 EN Tanmay Srivastava CSIR-National Environmental Engineering Research Institute, Nagpur -440020, India Academy of Scientific and Innovative Research (AcSIR), Ghaziabad -201002, India Vartika Srivastava CSIR-National Environmental Engineering Research Institute, Nagpur -440020, India Academy of Scientific and Innovative Research (AcSIR), Ghaziabad -201002, India Suresh Kumar Manukonda CSIR-National Environmental Engineering Research Institute, Nagpur -440020, India Academy of Scientific and Innovative Research (AcSIR), Ghaziabad -201002, India Journal Article 2023 09 08 Municipal Solid Waste (MSW) dumpsites are one of the major source of methane (CH4) emissions due anaerobic degradation of organic matter content in the waste. Control technologies are available to reduce these emissions, but they are costly and their application on existing sites is complex. Moreover, tropical climate is responsible for rapid degradation of organic matter in open dumps leading to substantial CH4 emissions mainly due to hot and humid conditions amongst other factors. Methanotrophs are bacteria capable of oxidizing CH4 into carbon dioxide (CO2) by virtue of methane monooxygenase enzyme. Various cover materials can be utilized to enhance methane oxidation (MO) ability of these organisms by providing favorable conditions thus converting methane from unmanaged dumpsites into CO2 which has lower global warming potential. Hence their application shows great potential for contributing towards meeting the greenhouse gas (GHG) reduction goals. This review focuses on the attempts to attenuate CH4 emissions by different biocover systems and the current scenario while giving special emphasis to tropical conditions. https://jpoll.ut.ac.ir/article_95591_b7395d9fe0b6f79920fcb5da39ccb0a4.pdf