摘要
利用质量平衡模型,在核算生活垃圾处理技术碳排放的基础上,通过低碳化程度评价方法,建立了面向不同层次需求的生活垃圾低碳化策略.研究结果表明,餐厨垃圾产沼利用、生活垃圾填埋气收集利用和焚烧发电的低碳化程度最高,分别为93.7%、75.3%和71.0%.在不具备上述处理条件的地区,可以采用准好氧填埋,或在填埋之前进行好氧稳定预处理实现碳减排,其低碳化程度分别为61.8%和56.7%.根据目前生活垃圾的处理情况,估算我国每年生活垃圾处理过程将形成甲烷排放超过600万t,总碳排放约1.5亿t;而通过实施低碳化处理策略,2015年甲烷排放可减少至约500万t,总碳排放减少至1.3亿t。
Based on the calculation of carbon emission from municipal solid waste（MSW） treatment processes by using the mass balance model,a low-carbon strategy for MSW management was established by evaluating the relatively low-carbon degree of these processes.Restaurant garbage digestion for methane production,MSW landfill for gas utilization,and incineration for power production had the lowest carbon emission,with low-carbon degrees of 93.7%,75.3% and 71.0%,respectively.In areas where the above technologies were limited,semi-aerobic landfill and landfill with an aerobic stabilization pretreatment were also effective for carbon emission reduction,and their low-carbon degrees were 61.8% and 56.7%,respectively.According to the present MSW treatment status in China,it was estimated that the CH4 emission was above 6 million tons and the total carbon emission was about 150 million tons per year from MSW treatment.With the implementation of the low-carbon management strategy,in 2015,the CH4 emission and the total carbon emission could be reduced to approximately 5 million tons and 130 million tons,respectively.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2011年第2期259-264,共6页
China Environmental Science
基金
国家"十二五"科技支撑计划项目(2009BAC64B06)
江苏省科技计划项目(BE2008611)
关键词
生活垃圾
填埋
焚烧
碳排放
municipal solid waste（MSW）
landfill
incineration
carbon emission
