Department of Industrial Ecology, The Royal Institute of Technology (KTH), Stockholm, Sweden.
Waste Manag Res. 2011 Aug;29(8):823-33. doi: 10.1177/0734242X10396119. Epub 2011 Mar 7.
The grave concern over climate change and new economic incentives such as the clean development mechanism (CDM) have given more weight to the potential of projects for reducing greenhouse gas (GHG) emissions. In the Adjara solid waste management project, even though the need for reductions in GHG emissions is acknowledged, it is not one of the key factors for selecting the most appropriate treatment method. This study addresses the benefit of various solid waste treatment methods that could be used in the Adjara project in terms of reducing GHG emissions. Seven different options for solid waste treatment are examined: open dumping as the baseline case, four options for landfill technology (no provision of landfill gas capture, landfill gas capture with open flare system, with enclosed flare system and with electricity generation), composting and anaerobic digestion with electricity production. CDM methodologies were used to quantify the amount of reductions for the scenarios. The study concludes sanitary landfill with capture and burning of landfill gas by an enclosed flare system could satisfy the requirements, including GHG reduction potential. The findings were tested for uncertainty and sensitivity by varying the data on composition and amount of waste and were found to be robust.
人们对气候变化深感担忧，同时新的经济激励措施（如清洁发展机制）也越发受到重视，这些都使得减少温室气体（GHG）排放项目的潜力得到了更多关注。在格鲁吉亚阿扎尔固体废物管理项目中，尽管人们承认有必要减少温室气体排放，但它并不是选择最合适处理方法的关键因素之一。本研究探讨了在阿扎尔项目中可以使用的各种固体废物处理方法在减少温室气体排放方面的好处。研究考察了七种不同的固体废物处理选择：开放式垃圾倾倒作为基准情况，四种垃圾填埋技术（不提供垃圾填埋气体捕获、带开放式火炬系统的垃圾填埋气体捕获、带封闭式火炬系统的垃圾填埋气体捕获和带发电的垃圾填埋气体捕获）、堆肥和厌氧消化并发电。清洁发展机制方法被用于量化各情景的减排量。研究得出结论，带有封闭式火炬系统捕获和燃烧垃圾填埋气体的卫生填埋场可以满足要求，包括减少温室气体排放的潜力。通过改变废物的组成和数量的数据对研究结果进行了不确定性和敏感性测试，结果表明结果是稳健的。
