沼气生态农业模式的生命周期评价  

Life Cycle Assessment of Biogas Eco-agricultural Mode

作　　者：刘黎娜[1] 王效华[1] 

机构地区：[1]南京农业大学工学院,江苏南京210031

出　　处：《中国沼气》2008年第2期17-20,24,共5页China Biogas

摘　　要：本文运用生命周期评价方法,对北方"四位一体"沼气生态农业模式的沼气系统在整个生命周期中对农业生态环境的影响进行了评价。研究表明,沼气系统整个生命周期排放污染物总量仅占所替代煤的燃烧所产生污染物总量的20(左右,沼气系统具有显著的生态环境效益。Using life cycle assessment, this paper has conducted an agricultural eco-envlronmental impact assessment to the whole lifespan of biogas system in Four-in-one eco-agricultural mode in north China. The result indicated that the total amount of pollutant, discharged from biogas system in whole lifespan, only accounted for about 20% of that discharged from equivalent coal burning, and reduced pollutant discharge by 80%. Biogas system has remarkable ecological environment benefits.

关 键 词：沼气 生命周期评价 环境保护 生态农业 温室 

分 类 号：TK6[动力工程及工程热物理—生物能] X820.3[环境科学与工程—环境工程]