| 垃圾分类对城乡一体化模式垃圾处理碳减排的影响分析：以宝鸡市为例 |
| 摘要点击 1274 全文点击 181 投稿时间：2024-01-09 修订日期：2024-04-03 |
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| 中文关键词 垃圾分类 简易填埋 助燃剂 城乡一体化 碳减排 |
| 英文关键词 garbage sorting simple landfill accelerant urban-rural integration carbon emission reduction |
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| 中文摘要 |
| 生活垃圾处理是重要的人为温室气体排放源,明确垃圾分类处理前后各环节的碳排放强度,对助力“双碳”目标具有重要意义.基于宝鸡市2021年生活垃圾产生相关数据,结合城乡生活垃圾一体化处置模式,采用IPCC清单指南碳排放因子法,核算了宝鸡市城乡生活垃圾分类前后各处理环节的碳排放强度.结果表明,减少农村简易填埋比例可减碳59 451.62 t（以CO2-eq计）,2021年宝鸡市垃圾分类处理后总碳减排可达251 617.37 t（以CO2-eq计）；垃圾分类处理前CH4占碳排放的96.75%,分类处理后CO2占碳排放的83.74%；垃圾分类处理后,助燃剂的消耗每年可产生碳排放1 167.16 t（以CO2-eq计）,占直接碳排放的0.38%；渗滤液和焚烧烟气处理的药品消耗每年会产生碳排放2 126.91 t（以CO2-eq计）,占间接碳排放的9.95%.深入完善生活垃圾分类体系,改变处理方式,提高填埋气（LFG）的收集利用率,强化覆盖层的CH4氧化能力等是可行的碳减排措施. |
| 英文摘要 |
| Domestic waste treatment is an important source of anthropogenic greenhouse gas emissions, and it is of great significance to clarify the carbon emission intensity of each link before and after waste classification treatment to help with the “double carbon” goal. Based on the relevant data on domestic waste generation in Baoji City in 2021, combined with the integrated urban and rural domestic waste disposal model, the carbon emission intensity of urban and rural domestic waste treatment before and after classification was calculated using the IPCC inventory guide carbon emission factor method. The results showed that by reducing the proportion of simple landfills in rural areas, the carbon reduction could reach 59 451.62 t （measured by CO2-eq）, and the total carbon reduction after waste classification and treatment in Baoji City in 2021 could reach 251 617.37 t （measured by CO2-eq）. CH4 accounted for 96.75% of carbon emissions before waste classification, and CO2 accounted for 83.74% after waste classification. After waste classification and treatment, the consumption of combustifiers could produce 1 167.16 t （measured by CO2-eq） of carbon emissions per year, accounting for 0.38% of direct carbon emissions. Pharmaceutical consumption from leachate and incineration flue gas treatment produced 2 126.91 t （measured by CO2-eq） of carbon emissions per year, accounting for 9.95% of indirect carbon emissions. Further improving the classification system of solid waste, changing the treatment method, improving the collection and utilization rate of landfill gas, and strengthening the CH4 oxidation capacity of the covering layer are feasible carbon emission reduction measures. |
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