Optimization for MSW logistics of new Xicheng and new Dongcheng districts in Beijing based on maximum capacity of transfer stations

The new Xicheng and new Dongcheng districts of Beijing in 2010 were chosen as the research object. Based on the analysis of the current municipal solid waste (MSW) logistics system, the transfer station’s processing capacity and the terminal treatment facilities' conditions of the two new districts and other districts, a MSW logistics system was built using geographic information system (GIS) and analytic network process methods considering transregional treatment. The new logistics (MSW from new Xicheng was collected for Majialou. MSW from old Dongcheng and Xuanwu was collected for Datun and Xiaowuji, respectively) proved to be an improvement with a 10 % less collection fee, 111 % output–input ratio after transfer station (include) and 0.8:4.6:4.6 I:C:L (incineration:compost:landfill). After Nangong, Gaoantun II and Asuwei incineration are established, the output–input ratio of the new logistics will reach 114 %, and I:C:L will reach 3.6:4.2:2.2 which is environmentally friendly and nearer to the 4:3:3 Beijing government target. For a full load of every transfer station, the complement schemes were also presented and contrasted based on GIS analysis. The results have great theoretical and practical significance in transregional treatment and improving resource management level of MSW.

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