Calabrò Paolo S
Dipartimento di Meccanica e Materiali, Università degli Studi Mediterranea di Reggio Calabria, 89122 Reggio Calabria, Italy.
Waste Manag. 2009 Jul;29(7):2178-87. doi: 10.1016/j.wasman.2009.02.011. Epub 2009 Mar 21.
The municipal solid waste management significantly contributes to the emission in the atmosphere of greenhouse gases (e.g. CO(2), CH(4), N(2)O) and therefore the management process from collection to treatment and disposal has to be optimized in order to reduce these emissions. In this paper, starting from the average composition of undifferentiated municipal solid waste in Italy, the effect of separate collection on greenhouse gases emissions from municipal waste management has been assessed. Different combinations of separate collection scenarios and disposal options (i.e. landfilling and incineration) have been considered. The effect of energy recovery from waste both in landfills and incinerators has also been addressed. The results outline how a separate collection approach can have a significant effect on the emission of greenhouse gases and how wise municipal solid waste management, implying the adoption of Best Available Technologies (i.e. biogas recovery and exploitation system in landfills and energy recovery system in Waste to Energy plants), can not only significantly reduce greenhouse gases emissions but, in certain cases, can also make the overall process a carbon sink. Moreover it has been shown that separate collection of plastic is a major issue when dealing with global warming relevant emissions from municipal solid waste management.
城市固体废物管理对大气中温室气体（如二氧化碳、甲烷、一氧化二氮）的排放有显著影响，因此，从收集到处理和处置的管理过程必须进行优化，以减少这些排放。本文从意大利未分类城市固体废物的平均成分出发，评估了分类收集对城市废物管理中温室气体排放的影响。考虑了分类收集方案和处置选项（即填埋和焚烧）的不同组合。还探讨了垃圾填埋场和焚烧炉中废物能源回收的影响。结果表明，分类收集方法对温室气体排放有显著影响，明智的城市固体废物管理，即采用最佳可得技术（如垃圾填埋场的沼气回收和利用系统以及垃圾焚烧发电厂的能源回收系统），不仅可以显著减少温室气体排放，而且在某些情况下，还可以使整个过程成为一个碳汇。此外，研究表明，在处理城市固体废物管理中与全球变暖相关的排放时，塑料的分类收集是一个主要问题。
