Liu Donghui, Wang Shanshan, Xue Ruoyu, Gao Gengyu, Zhang Ruiqin
College of Chemistry, Zhengzhou University, Zhengzhou, 450001, Henan, China.
School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, Henan, China.
Environ Sci Pollut Res Int. 2021 Dec;28(46):65435-65446. doi: 10.1007/s11356-021-15483-0. Epub 2021 Jul 28.
Municipal solid waste (MSW) incineration power generation is an important treatment technology, which has been widely concerned in recent years. It is of great significance to evaluate the environmental impact. This study conducted the environmental life cycle assessment of MSW incineration power plant in Yongcheng city, Henan province, China. After that, the comprehensive environmental impacts of MSW incineration power plant, landfill, and coal-fired power plant are compared. Furthermore, the energy conservation and emission reduction benefits brought by MSW incineration power plant in Yongcheng city are quantitatively analyzed. The results show that (1) the main environmental impact categories of MSW incineration power plant are human toxicity potential and acidification potential, which together account for 72.8% of the total comprehensive environmental impact. In addition, incineration is the main process of pollutant generation, which contributes 94.1% to the comprehensive environmental impact. (2) As an effective supplement to landfill and coal-fired power generation, MSW incineration power generation produces lower environmental impact. (3) Significant energy-saving and emission reduction benefits can be brought by MSW incineration power plant. Particularly, it could save energy 2.75×10 tce, reduce greenhouse gas emissions 3.43×10 t CO-eq, and effectively reduce the emissions of various air pollutants for the local area annually.
城市生活垃圾焚烧发电是一项重要的处理技术，近年来受到广泛关注。评估其环境影响具有重要意义。本研究对中国河南省永城市的生活垃圾焚烧发电厂进行了环境生命周期评价。之后，比较了生活垃圾焚烧发电厂、垃圾填埋场和燃煤发电厂的综合环境影响。此外，还对永城市生活垃圾焚烧发电厂带来的节能减排效益进行了定量分析。结果表明：（1）生活垃圾焚烧发电厂主要的环境影响类别是人体毒性潜值和酸化潜值，二者合计占综合环境影响总量的72.8%。此外，焚烧是污染物产生的主要过程，对综合环境影响的贡献率为94.1%。（2）作为垃圾填埋和燃煤发电的有效补充，生活垃圾焚烧发电产生的环境影响较低。（3）生活垃圾焚烧发电厂能带来显著的节能减排效益。特别是，每年可为当地节约能源2.75×10吨标准煤，减少温室气体排放3.43×10吨二氧化碳当量，并有效减少各类空气污染物排放。
