农村户用沼气工程生命周期节能减排效益  

Life cycle energy conservation and emissions reduction benefits of rural household biogas project

作　　者：王明新[1] 夏训峰[2] 柴育红[1] 刘建国[1] 

机构地区：[1]常州大学环境与安全工程学院,常州213164 [2]中国环境科学研究院,北京100012

出　　处：《农业工程学报》2010年第11期245-250,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金资助项目(70901035);国家科技重大专项(2009ZX07632-02-03)

摘　　要：评估农村户用沼气工程及其上下游环节的节能减排效益,可为农村户用沼气工程生命周期全过程环境管理和农村可再生能源发展提供决策参考。以8m3典型农村户用沼气工程为例,应用生命周期评价方法进行了清单分析和节能减排效益评价。结果表明,1个典型8m3户用沼气工程生命周期对富营养化、环境酸化、能源耗竭、温室效应、人体毒性和光化学氧化6类环境影响类型的减缓作用分别相当于2000年世界人均环境影响潜力的84.84%、54.37%、39.16%、26.67%、19.35%和5.55%,生命周期净节能减排效益显著。因此,发展农村户用沼气工程对缓解中国化石能源紧缺的局面和控制农村面源污染均具有重要的促进作用。The calculation and evaluation of energy conservation and emissions reduction benefits of the rural household biogas project and its up stream and down stream sectors can provide decision making basis for whole process environmental management of the rural household biogas project and rural renewable energy development. In this paper,life cycle assessment method was established with inventory of a typical 8 m3 rural household biogas project and then the net energy conservation and emission reduction benefits were calculated and evaluated. The results showed that the life cycle reduction potentials of eutrophication,acidification,energy depletion,greenhouse effect,human toxicity and photochemical oxidation impacts of a typical 8 m3 household biogas project accounted for 84.84%,54.37%,39.16%,27.67%,19.35% and 5.55% of the relevant environmental impact potential per capita in the world in 2000,showing a significant net energy conservation and emissions reduction benefits. Therefore,the development of rural household biogas project plays a significant role in alleviating the fossil energy shortage situation and controlling the agricultural non-point source pollution in rural areas.

关 键 词：节能 排放控制 生命周期 户用沼气工程 清单分析 

分 类 号：X820[环境科学与工程—环境工程]