村镇生活垃圾不同处置模式下温室气体排放潜力对比研究——以湖北埠河镇为例  

Comparative Study on Greenhouse Gas Emission Potential of Different Disposal Modes of Rural Domestic Waste:A Case Study of Buhe Town,Hubei Province

作　　者：淦方茂 吴莉鑫 虞文波[2] 胡广 惠二青 郭帅 GAN Fangmao;WU Lixin;YU Wenbo;HU Guang;HUI Erqing;GUO Shuai(Yangtze Ecology and Environment Co.Ltd.,Wuhan Hubei 430062;School of Environmental Science and Engineering,Huazhong University of Science and Technology,Wuhan Hubei 430074)

机构地区：[1]长江生态环保集团有限公司,湖北武汉430062 [2]华中科技大学环境科学与工程学院,湖北武汉430074

出　　处：《环境卫生工程》2023年第1期112-118,共7页Environmental Sanitation Engineering

基　　金：国家重点研发计划专项(2018YFD1100604);武汉市科技计划项目(2020020601012277);中国长江三峡集团有限公司科研项目(202101356);长江生态环保集团有限公司科研项目(HB/ZB2021138)。

摘　　要：采用政府间气候变化专门委员会(IPCC)清单指南联合生命周期评价(LCA)方法,对我国村镇生活垃圾厌氧填埋、微好氧填埋、堆肥和焚烧4种处置工艺下的主要温室气体排放潜力进行对比分析。结果表明,每吨村镇生活垃圾处置工艺的温室气体排放潜力从大到小依次为:厌氧填埋(1324.72 kgCO_(2)eq)>微好氧填埋(34.97 kgCO_(2)eq)>焚烧(1.85 kgCO_(2)eq)>堆肥(-106.03 kgCO_(2)eq)。厌氧填埋的温室气体主要来自厌氧降解产生的CH4;微好氧填埋的温室气体主要来自厌氧-好氧降解产生的N2O;堆肥产生的温室气体主要来自生物降解过程产生的CH4和N2O,而堆肥产品的再利用能够有效抵消部分温室气体排放;焚烧的温室气体主要来自焚烧过程化石碳转化生成的CO_(2)和焚烧厂运行过程的间接排放,上网发电能有效减少温室气体排放。The greenhouse gas(GHG)emission potential of four disposal processes of anaerobic landfill,microaerobic landfill,composting and incineration of rural domestic waste were compared and analyzed via the intergovernmental panel on climate change(IPCC)inventory guidelines combined with the life cycle assessment(LCA)method.The results showed that the GHG emission potential of per ton rural domestic waste disposal process from large to small was anaerobic landfill(1324.72 kgCO_(2)eq)>micro-aerobic landfill(34.97 kgCO_(2)eq)>incineration(1.85 kgCO_(2)eq)>composting(-106.03 kgCO_(2)eq).The GHG of anaerobic landfill mainly came from CH4 produced by anaerobic degradation.The GHG of micro-aerobic landfill mainly came from N2O produced by anaerobic-aerobic degradation.The GHG of composting mainly came from CH4 and N2O produced by biodegradation,and the reuse of the compost product could effectively offset part of the GHG emissions.The GHG of incineration mainly came from CO_(2) generated from fossil carbon conversion and indirect emission from incineration plant operation.On-gird power generation could effectively reduce GHG emission.

关 键 词：村镇生活垃圾 处置工艺 温室气体排放潜力 政府间气候变化专门委员会(IPCC) 生命周期评价(LCA) 

分 类 号：X799.3[环境科学与工程—环境工程]