摘要
基于生命周期清单分析以及清洁发展机制,引入"碳足迹"概念,对我国散养猪以及规模化养猪场引入沼气发酵系统后猪粪管理系统温室气体排放及减排进行了估算。农户散养猪粪处理系统中,12 m3沼气池厌氧发酵过程碳足迹为223.40 kg CO2e/a,沼气代替原煤燃烧减少444.33 kg CO2e/a温室气体,沼气发酵净减少220.93 kg CO2e/a温室气体,我国散养生猪产生的猪粪以此沼气池发酵可减少温室气体20 984.62 Gg CO2e/a;分析运行规模约1 000 m3大型沼气工程的碳足迹,保守估计为2 835.32 t CO2e/a,运行沼气工程替代煤炭以及减少猪粪排放的温室气体共约2 914.23 t CO2e/a,故沼气工程年减少温室气体78.91 t CO2e,该项目共可减排1 578.20 t CO2e。在猪粪管理系统中采用沼气发酵系统可以更好地促进温室气体减排的进行。
Based on life cycle assessment and clean development mechanism analysis, carbon footprint （CF） was induced to estimate the greenhouse gas emissions and emission reduction of scatter and scale feed-pig farm with biogas fermentation system.In scatter pig mature treatment system,, biogas digester＇s carbon footprint of 12 m3 was 223.40 kg CO2e/a. 444.33 kg CO2e/a of greenhouse gas （GHG） could be reduced by biogas to replace coal , GHG emissions of 220.93 kg CO2e/a could be reduced by biogas fermentation, GHG reduction of 20 984.62 Gg C02e/a could be reduced by this way of scatter-feed pigs in China; the carbon footprint of scale is bout 1 000 m3 was about 2 835.32 t CO2e/a, and 2 914.23 t CO2e/a of greenhouse gas was reduced by biogas engineering,so 78.91 t CO2e was reduced in a year by biogas fermentation, and 1 578.20 t CO2e could be reduced in total by this project. Pig manure management system with biogas fermentation could promote greenhouse gas emission greatly.
出处
《可再生能源》
CAS
北大核心
2012年第8期59-63,共5页
Renewable Energy Resources
基金
国家科技支撑项目(2012BAD14B03)
关键词
温室气体
减排
碳足迹
沼气
堆积
greenhouse gas
emission reduction
carbon footprint
biogas
accumulation
