Centre for Environmental Policy, Mechanical Engineering Building, Imperial College London, South Kensington Campus, United Kingdom.
Sci Total Environ. 2010 Mar 15;408(8):1979-84. doi: 10.1016/j.scitotenv.2009.12.011. Epub 2010 Jan 25.
The pretreatment of the biodegradable components of municipal solid waste (MSW) has been suggested as a method of reducing landfill gas emissions. Mechanical biological treatment (MBT) is the technology being developed to provide this reduction in biodegradability, either as an alternative to source segregated collection or for dealing with residual MSW which still contains high levels of biodegradable waste. The compost like outputs (CLOs) from MBT plants can be applied to land as a soil conditioner; treated to produce a solid recovered fuel (SRF) or landfilled. In this study the impact that landfilling of these CLOs will have on gaseous emissions is investigated. It is important that the gas production behaviour of landfilled waste is well understood, especially in European member states where the mitigation of gaseous emissions is a legal requirement. Results of an experiment carried out to characterise the biodegradable components of pretreated biowastes have been used with the GasSim model to predict the long term emissions behaviour of landfills accepting these wastes, in varying quantities. The landfill directive also enforces the mitigation of potential methane emissions from landfills, and the ability of landfill operators to capture gaseous emissions from low emitting landfills of the future is discussed, as well as new techniques that could be used for the mitigation of methane generation.
预处理城市固体废物（MSW）的可生物降解成分已被提议作为减少垃圾填埋气排放的一种方法。机械生物处理（MBT）是正在开发的技术，旨在提供这种生物降解性的降低，无论是作为源分离收集的替代方法，还是用于处理仍然含有高水平可生物降解废物的剩余 MSW。MBT 工厂的类似堆肥的产物（CLO）可作为土壤调节剂施用于土地；经处理后可生产固体回收燃料（SRF）或填埋。在这项研究中，研究了这些 CLO 填埋对气体排放的影响。了解填埋废物的气体产生行为非常重要，特别是在欧洲成员国，减轻气体排放是一项法律要求。用 GasSim 模型对预处理生物废物的可生物降解成分进行了特征描述的实验结果，用于预测接受这些废物的垃圾填埋场的长期排放行为，接受的废物数量不同。该填埋指令还规定了减轻来自填埋场的潜在甲烷排放，以及讨论了未来低排放填埋场的填埋场运营商捕获气体排放的能力，以及可用于减轻甲烷生成的新技术。
