文献类型：期刊文献

英文题名：Environmental impacts and optimization simulation of aerobic anaerobic combination treatment technology for food waste with life cycle assessment

作者：Yan, Ying[1];Gu, Ruinian[1];Zhu, Manman[1];Tang, Mingqi[1];He, Qun[1];Tang, Yuanyuan[2];Liu, Lili[1,3]

机构：[1]East China Univ Sci & Technol, Sch Resource & Environm Engn, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China;[2]Southern Univ Sci & Technol, Coll Engn, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China;[3]130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2023

卷号：164

起止页码：228

外文期刊名：WASTE MANAGEMENT

收录：;EI(收录号：20231713947121);WOS:【SCI-EXPANDED(收录号:WOS:000986686800001)】；

基金：This work was supported by National Key Research and Develop- ment Program of China (Grant No. 2018YFC1901000) .

语种：英文

外文关键词：Life cycle assessment; Food waste; Aerobic anaerobic combination treatment; Solid-liquid separation; Soil conditioner

摘要：After the implementation of waste sorting policy in Shanghai, the amount of food waste (FW) separation and treatment demand has increased significantly. It is necessary to establish the life cycle assessment (LCA) to assess the environmental impacts of various treatment technologies comprehensively, thus provide support for sorting, recycling, treatment and disposal strategies of FW. In this study, a local FW treatment plant in Shanghai, using typically aerobic anaerobic combination treatment technology was selected to analyze the environmental im-pacts with LCA. The process mainly included pretreatment, power, aerobic composting, anaerobic digestion, and further process systems. LCA results showed that the environmental impacts mainly came from the power and aerobic composting systems on the fine particulate matter formation and eutrophication, and freshwater eco-toxicity and terrestrial acidification, respectively. Considering the carbon footprint, the aerobic composting system contributed 3.61E + 02 kg CO2 eq and represented the largest source of carbon emission. The soil conditioner yielded both environmental benefits on eutrophication and terrestrial ecotoxicity, and ecological benefits of 75.33 million CNY per year being the major revenue for the treatment plant. It also suggested that the biogas generation capacity of anaerobic digestion could be increased to achieve electricity self-sufficiency, thus save about 7.12 million CNY per year in electricity costs, and avoid corresponding environmental impacts caused by coal-fired. In summary, the aerobic anaerobic combination treatment could be further optimized and applied in FW treatment to reduce the environmental impacts, and enhance resource recovery and secondary pollution control.