The study aims to focuses on waste-to-energy and especially its current status and benefits, with regard to GHG,
renewable energy production and slurry management based on an experience in Nepal. An environment pollution and
climate change happened due to green house gases (GHG) emission. As we know that the most of the anthropogenic
emission of GHG results from the combustion of fossil fuels but we should also know that environmental concerns such
as waste management also contribute for Global Warming. The solid waste management is based on an understanding
of MSWs composition and physiochemical characteristics. The results show that organic matter represents 69% of
waste, followed by paper-cardboard 7%, plastic 8%, miscellaneous 13%, metal 1% and glass 2%. The major source of
GHG from landfill sites which produce significant methane and carbon dioxide gas. The main impact of the methane
is on global scale, as a greenhouse gas. Although levels of methane in the environment are relatively low, its high
“global warming potential” (21 times that of carbon dioxide) rank it amongst the worst of green house gases. The
main cause to increase atmospheric temperature due to highly production of GHG (CH4, CO2 & N2O etc). GHG
mitigation measure in the waste include source reduction through waste prevention, recycling, composting, waste to
energy incineration and methane capture from landfills and waste water. Specific mitigation option include use of
3R principle; waste segregation, reduction at source; composting anaerobic digestion for biogas; sanitary landfill
sites with methane capture; healthcare waste management; proper statutory framework; public participation; private
sector partnership; tax waiver for recycling enterprises; and financial management. Regulation is required to ban
of recyclable waste in landfill.
Role of Landfill Cover in Reducing Methane Emission
