| Citation: | LIU C H,HAO X J,LIU F.Greenhouse gas emission characteristics and emission reduction strategies of municipal solid waste treatment in Beijing[J].Journal of Environmental Engineering Technology，2022，12（4）：1041-1047 doi: 10.12153/j.issn.1674-991X.20210820
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Guided by IPCC Guidelines for National Greenhouse Gas Inventories and Guidelines for the Preparation of Provincial Greenhouse Gas List, the greenhouse gas (GHG) emission list of three municipal solid waste (MSW) treatment methods in Beijing was established, the GHG emissions of CH4, CO2 and N2O under different MSW treatment methods in 2010-2019 were calculated, the variation characteristics of CO2 emissions over time were analyzed, and carbon emission reduction strategies were put forward. The results showed that: 1) From 2010 to 2019, the GHG emissions from MSW treatment in Beijing generally increased first and then reduced, and the change range had slowed down. In 2019, it reached the lowest level in 10 years, which was mainly related to the change of waste treatment from landfill to incineration in Beijing in recent years. 2) In 2018, the incineration amount of MSW exceeded the landfill amount in Beijing, and the CO2 emissions of MSW incineration treatment were much lower than that of landfill treatment, indicating that the CO2 emission intensity of incineration treatment was lower than that of landfill treatment. 3) The GHG emission of MSW treatment was closely related to the garbage treatment methods and treatment amount. With the increasing production of MSW, it was suggested to strengthen waste fine classification in the whole process of MSW management and promote source reduction, carry out the construction of waste treatment facilities reasonably, optimize the waste collection and transportation system, prevent the secondary pollution of waste treatment, and explore a low-carbon optimization model suitable for China's MSW treatment.
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