Abstracto

Quantitative and Qualitative Study of MSW from Papumpare District in Arunachal Pradesh

Kenli Bagra, Ajay Bharti

More than 29 million tons of municipal solid waste (MSW) is produced every year in India [1]. It is due to the concentration of very high population in urban areas and added new types of wastes from shops, institutes and factories. Due to high amount of organic materials, MSW has high energy content. The energy content of the MSW collected from NERIST campus is found to be 19556kJ/kg of dry MSW. Most of the solid wastes are disposed of by land filling in low-laying areas located in and around the urban centers. The landfill gas generated from the MSW is entered into the atmosphere which may be one of the reasons of global warming. Most of the constituents of MSW landfill gas are methane and carbon dioxide [2] which are premier green house gases (GHG). Methane emission from landfill is estimated to account for 3-19 % of the anthropogenic sources in the world [3]. But if the gas can be used scientifically, it can generate a large amount of energy, since it has approximately one-half the calorific value than that of natural gas. Landfill gas can often be used in place of conventional fossil fuels in certain applications. It is a reliable source of energy because it is generated 24 hours a day, 7 days a week. By using landfill gas to produce energy, landfills can significantly reduce their emissions of methane and avoid the need to generate energy from fossil fuels, thus reducing emissions of carbon dioxide, sulfur dioxide, nitrogen oxides, and other pollutants from fossil fuel combustion. The main objective of present work is the quantitative and qualitative study of MSW from Papumpare district in Arunachal Pradesh for proper MSW management.