The optimization of municipal solid waste treatment technology in the ecological fragile areas of northwest China
WANG Yue1, WANG Mai-bo2, YANG Yue1, WU Chang-yong1, XI Bei-dou1, WANG Ying1, LI Dong-yang1
1. Environmental Pollution Control Engineering Technology Research Center, Chinese Research Academy of Environmental Sciences, Beijing 100021, China; 2. College of Energy and Environment, Shenyang Aerospace University, Shenyang 110126, China
Abstract：In order to solve the problems of strong subjectivity, less scientificity and objectivity in the selection process of municipal solid waste treatment technologies, municipal solid waste treatment plants, and engineering design in the ecologically fragile northwestern area, the life cycle assessment method has been combined with the analytic hierarchy process, and the factors of four aspects including the environmental impact, treatment technology, geographic climate and actual engineering are considered to establish a comprehensive evaluation system. Taking the status of municipal solid waste treatment in Lanzhou as an example, a comprehensive evaluation of the applicability of nine municipal solid waste treatment facilities was carried out. The results showed that: (1)The comprehensive scores for the applicability of the top three treatment facilities in the descending order were the kitchen waste resource composting plant (73.91 points), the Hanjiazui village municipal solid waste landfill plant (72.93 points), and the Zhongpuzi waste incineration plant (72.44 points); (2)In the evaluation system of municipal solid waste treatment technology, the ranking of the weights of the influencing factors from the most important to the least was environmental impact (0.347), actual engineering (0.309), disposal technology (0.228), and geographic climate (0.116); (3) The comparison results of the potential environmental impact values of these three treatment technologies were sanitary landfill (0.3872), waste incineration (0.0330), and waste composting (0.0242),respectively.
王月, 王劢博, 杨悦, 吴昌永, 席北斗, 王颖, 李东阳. 西北生态脆弱区城市生活垃圾处理厂适用性评价[J]. 中国环境科学, 2021, 41(12): 5933-5942.
WANG Yue, WANG Mai-bo, YANG Yue, WU Chang-yong, XI Bei-dou, WANG Ying, LI Dong-yang. The optimization of municipal solid waste treatment technology in the ecological fragile areas of northwest China. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(12): 5933-5942.
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