Abstract:Upstream-operation-downstream (UOD) method was applied to study the greenhouse gas (GHG) emissions from one municipal solid waste (MSW) incineration plant in Shanghai. The contribution of each step and the influencing factors to GHG emissions were analyzed. The results showed that the incineration plant was source of GHG, which contributed 166~212kg CO2-eq/t of waste for incineration (fww). The fossil carbon content in the waste was found to be the critical factor, emitting 257kg CO2-eq/t fww. The utilization of electricity generated from incineration could save 120kg CO2-eq/t fww. Other parts (e.g. collection and transportation of wastes, disposal of bottom ash and fly ash and consumption of auxiliary material) released 27~45kg CO2-eq/t fww. GHG emissions from leachate treatment were 7.7kg CO2-eq/t fww. By saving of the auxiliary materials and changing of the disposal patterns of ashes, the GHG emissions can be mitigated in a limited degree. GHG savings varied by 0~13% when electricity factors in different regions were considered. In order to realize source-sink conversion of GHG for MSW incineration, the key approach was to increase the electricity generation capacity of the MSW by reducing water content.
何品晶, 陈淼, 杨娜, 邵立明. 我国生活垃圾焚烧发电过程中温室气体排放及影响因素
——以上海某城市生活垃圾焚烧发电厂为例[J]. 中国环境科学, 2011, 31(3): 402-407.
HE Pin-Jing, CHEN Miao, YANG Na, SHAO Li-Ming. GHG emissions from Chinese MSW incineration and their influencing factors - Case study of one MSW incineration plant in Shanghai. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(3): 402-407.