重庆市城市生活垃圾填埋甲烷排放量估算

Estimate of Methane Emission from Municipal Solid Waste Landfills in Chongqing

采用《IPCC国家温室气体清单编制指南(2006年修订版)》中推荐的基于动力学模型的一阶衰减(FOD)方法估算了重庆市直辖十年以来因城市生活垃圾(MSW)产生的CH4排放量.结果表明,1997年至2007年间重庆城市生活垃圾CH4排放量总体呈递增趋势.对甲烷产生率k值及生活垃圾构成中可降解有机碳比例对CH4排放量估算结果的影响分析表明,可降解有机碳较对估算结果的影响更大,两者不确定性的交互作用对估算量带来的不确定性约为33%.

Methane emission from municipal solid waste（MSW）of Chongqing was estimated by the method of first-order decay（FOD）based on the kinetic model which is recommended in 2006 IPCC Guidelines for National Greenhouse Gas Inventories.Methane emission from MSW increased from 1997 to 2007 in Chongqing.Analysis of the effects of methane production rate（k value）and degradable organic carbon proportion on methane emission showed that degradable organic carbon proportion had a much larger effect and the interaction of the two emission factors was uncertain,thus resulting in an uncertainty of 33% to the estimated methane emission.