Resources Science ›› 2021, Vol. 43 ›› Issue (8): 1574-1588.doi: 10.18402/resci.2021.08.06

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Optimization of Beijing municipal solid waste treatment model based on low-carbon development

LI Ying1,2,3(), WU Xue1, SUN Chengshuang4, GENG Zijie5, ZHANG Quanhong6   

  1. 1. School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 102600, China
    2. Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing 102600, China
    3. Climate Change Research and Talent Training Base in Beijing, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
    4. School of Urban Economy and Management, Beijing University of Civil Engineering and Architecture, Beijing 102600, China
    5. School of Marxism, Beijing University of Civil Engineering and Architecture, Beijing 102600, China
    6. Circular Economy Industrial Park in Beijing Chaoyang District, Beijing 100048, China
  • Received:2021-01-25 Revised:2021-04-27 Online:2021-08-25 Published:2021-10-25

Abstract:

With the strategic requirements of China’s low-carbon development and waste resources recovery, municipal solid waste (MSW) treatment facilities have been continuously established and improved, and the MSW treatment model and related carbon emissions have also shown dynamic changes. Based on the mass balance method from the Intergovernmental Panel on Climate Change (IPCC) and guidelines of Beijing greenhouse gas emission accounting from MSW incineration plants, supplemented by field investigation, this study calculated carbon emissions, energy consumption, and resource utilization rates of different MSW treatment facilities within their facility boundaries during the four periods from the 10th Five-Year Plan to the 13th Five-Year Plan. Subsequently, a multi-objective optimization model of Beijing MSW treatment mode based on a low-carbon economy was constructed; the model was optimized by using MATLAB to determine the trend of development of MSW treatment mode of Beijing. The results show that: (1) The MSW treatment mode of Beijing has changed to “incineration dominating, supplemented by composting”; (2) Beijing achieved “zero landfill” of primary MSW in 2020 for the first time. The total design processing capacity of incineration plants and compost plants in the MSW treatment mode accounted for more than 75%; (3) In the future MSW treatment mode of Beijing landfill, incineration, and compost will be at a proportion of 5:51:44, shifting to “incineration and composting in parallel”. The results of this research can provide some theoretical support for the low-carbon development of the MSW treatment mode in Beijing in the future.

Key words: municipal solid waste (MSW), MSW treatment mode, carbon emission intensity, energy consumption intensity, design processing capacity, low-carbon, Beijing