西藏生活垃圾掺烧市政污泥的焚烧特性研究

Tibet Autonomous Region has special geographical conditions and a fragile ecological environment. The yield of Tibetan municipal solid waste (MSW) and sewage sludge (SS) has been increasing rapidly due to the development of urbanization and tourism. At present, the main treatment method of MSW/SS is landfill, while incineration is still at trial operation stage, and generally lack of advanced disposal technology. In this study, the characteristics of MSW and SS in the Tibet were investigated. The differences during the incineration process between wastes from Tibet and Tianjin were analyzed in a grate furnace. Also, the incineration characteristics of Tibetan MSW and SS under different mixing ratios was studied. The optimum blending ratio was preliminarily determined to be 4:1 which reduced the emissions of CO by 23.06%, HCl by 45.51%, and PM by 30.73%. Considering the irreversibility of the ecological environment in Tibet and its strategic role as a national ecological safety barrier, this study provides guidance for pollutant control in the waste incineration process and reference for the engineering application of MSW and SS co-incineration in Tibet.