The objective of Loma Los Colorados Landfill Gas Project is to develop a landfill gas collection system. This will involve investing in and operating a system for landfill gas collection and flaring. Landfill gas flaring involves methane combustion leading to greenhouse gas (GHG) emissions reductions. Some of the landfill gas collected would be put to energy use at the landfill site and additional GHG emissions reductions —from CO2 emissions— would accrue and would be credited within this CDM (Clean Development Mechanism) project.
The Loma Los Colorados Landfill is a Municipal Solid Waste (MSW) landfill located in the community of Til-Til, 63.5 km north of Santiago, Chile, near a village named Montenegro. The site operations are managed by KDM, and are generally considered to be the most modern of landfill operations in Chile. In May 2003, construction of a railway access was completed and operation of a train was initiated to transport MSW to the Landfill from the transfer station located in the community of Quilicura, Santiago. It is reported that more than 90 percent of the MSW deposited at the Landfill is delivered by rail.
Loma Los Colorados is the biggest landfill in Chile; the site comprises a total of about 800 hectares (ha), of which 200 ha are planned for landfill development.
Some electricity might be generated using biogas for on-site use. It is estimated that KDM would need a 0.8 MW installed capacity for satisfying its own electricity demand, which will be mainly used at the leachate treatment plant.
Other possible energy applications for landfill gas include use as a fuel at an industry off-site, or purification and injection into a natural gas pipeline. Possible energy applications of landfill gas collected are currently being analysed to determine their technical and economic viability. Insofar as the methane is equally destroyed by off-site energy use as on-site flaring or electricity generation, emissions reductions associated with methane recovery and destruction remain unchanged.
Besides climate change mitigation, the project would have important local environmental benefits. Most of the landfill gas is currently released to the atmosphere without any treatment. This implies a potential fire and explosion risk as well as bad odors. Moreover, landfill gas contains trace amounts of volatile organic compounds, which are air pollutants. The capture and flaring of landfill gas would greatly reduce all these risks and thereby contribute to sustainable development.
The Annual average of estimated reductions are 582,425 (tonnes of CO2e).
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