Yan Zhuo-Yi, Yue Bo, Gao Hong, Li Zhi-Long, Huang Qi-Fei, Nie Xiao-Qin, Wang Qun-Hui
Faculty of Civil Engineering and Architecture, Kunming University of Science and Technology, Kunming 650500, China.
Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
Huan Jing Ke Xue. 2017 Jul 8;38(7):3078-3084. doi: 10.13227/j.hjkx.201610191.
In order to realize the disposal feasibility of rural garbage by incineration, 72 rural garbage sampling points of 12 provinces in China were chosen to analyse mass fraction of full component and combustible component, moisture content of full component and low heating value of rural garbage in spring, summer, autumn and winter of 2015. The results revealed that the mass fraction of combustible rural garbage components in wet basis followed the order of kitchen residual(13%-53%) > the rubber(10%-18%) > the paper(10%-15%) > the wood(0-10%) > the fabric(0-8%). The compositional difference of rural garbage was not apparent between villages and towns within the same administrative region. The average moisture content of full component in southern rural garbage was higher than that in northern area, and the average moisture content of national rural garbage was about 40.1%. The low heating value of rural garbage in full composition which surpassed 3500 kJ·kg was more than 81% in the north China, but in the south China, it was 44%, 50%, 61% and 72% in spring, summer, autumn and winter, respectively. After sorting, the low heating value increased greatly, but the low heating value of southern rural garbage in spring was still less than 3500 kJ·kg, more than 56% towns and villages of southern rural garbage in summer, autumn and winter and annual northern rural garbage heating value met the heating value requirement of incineration disposal. Therefore, after sorting, the rural garbage by incineration disposal method was feasible to the north China rural garbage, but the south China rural garbage requires strengthened pretreatment process.
