Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Selangor, Malaysia.
Waste Manag Res. 2011 Aug;29(8):863-73. doi: 10.1177/0734242X10382064. Epub 2010 Sep 21.
The decomposition of municipal solid waste (MSW) in landfills under anaerobic conditions produces landfill gas (LFG) containing approximately 50-60% methane (CH(4)) and 30-40% carbon dioxide (CO(2)) by volume. CH(4) has a global warming potential 21 times greater than CO(2); thus, it poses a serious environmental problem. As landfills are the main method for waste disposal in Malaysia, the major aim of this study was to estimate the total CH(4) emissions from landfills in all Malaysian regions and states for the year 2009 using the IPCC, 1996 first-order decay (FOD) model focusing on clean development mechanism (CDM) project applications to initiate emission reductions. Furthermore, the authors attempted to assess, in quantitative terms, the amount of CH(4) that would be emitted from landfills in the period from 1981-2024 using the IPCC 2006 FOD model. The total CH(4) emission using the IPCC 1996 model was estimated to be 318.8 Gg in 2009. The Northern region had the highest CH(4) emission inventory, with 128.8 Gg, whereas the Borneo region had the lowest, with 24.2 Gg. It was estimated that Pulau Penang state produced the highest CH(4) emission, 77.6 Gg, followed by the remaining states with emission values ranging from 38.5 to 1.5 Gg. Based on the IPCC 1996 FOD model, the total Malaysian CH( 4) emission was forecast to be 397.7 Gg by 2020. The IPCC 2006 FOD model estimated a 201 Gg CH(4) emission in 2009, and estimates ranged from 98 Gg in 1981 to 263 Gg in 2024.
垃圾填埋场中的城市固体废物（MSW）在厌氧条件下分解产生填埋气（LFG），其体积组成大约为 50-60%的甲烷（CH(4)）和 30-40%的二氧化碳（CO(2)）。CH(4)的全球变暖潜能是 CO(2)的 21 倍；因此，它构成了一个严重的环境问题。由于垃圾填埋场是马来西亚处理废物的主要方法，本研究的主要目的是使用 IPCC，1996 年一阶衰减（FOD）模型估算 2009 年马来西亚所有地区和州的垃圾填埋场的总 CH(4)排放量，重点是清洁发展机制（CDM）项目应用，以启动减排。此外，作者试图使用 IPCC 2006 年 FOD 模型评估 1981-2024 年期间从垃圾填埋场排放的 CH(4)量。使用 IPCC 1996 模型估算的 2009 年总 CH(4)排放量为 318.8 Gg。北方地区的 CH(4)排放量最高，为 128.8 Gg，而婆罗洲地区最低，为 24.2 Gg。估计槟城州产生的 CH(4)排放量最高，为 77.6 Gg，其次是其余各州，排放量范围从 38.5 到 1.5 Gg。根据 IPCC 1996 年 FOD 模型，到 2020 年，马来西亚的总 CH(4)排放量预计将达到 397.7 Gg。IPCC 2006 年 FOD 模型估计 2009 年 CH(4)排放量为 201 Gg，估计值范围从 1981 年的 98 Gg 到 2024 年的 263 Gg。
