The characteristics of the municipal solid waste (MSW) processed by the municipal solid waste incinerator (MSWI) in Gansu urban area are as follows: food waste 36.38%, paper 9.7%, rubber 11.34%, textiles (fibers) 2.1%, wood and bamboo 1.36%, cinder and soil 0%, bricks, tiles, and ceramics 37.81%, glass 0.93%, metals 0.23%, and other 0%. The moisture content is 46.68%, the higher calorific value of 6088.2 kJ/kg, and the lower calorific value of 4390. 57 kJ/kg. Waste treatment activities are based on an average urban/public waste mixture and are not suitable for single specific waste materials such as plastics, paper, cardboard, etc. If your waste is a specific waste mixture, please separately account for the corresponding waste. For this type of waste, every kg will produce 0.205 kg of slag and 0. The fly ash and slag, after the recovery of precious metals, are landfilled. The fly ash is solidified with cement at a ratio of 1:1. The average heat efficiency of waste heat power generation is 22%; during the waste heat supply process, there is no conversion between different forms of heat and energy, so the heat efficiency is relatively high, with an average of 64%; by combining the heat efficiency of comprehensive waste heat power generation and direct heat supply processes, 15% of the heat generated during waste incineration is used for power generation, while 56% is used for direct heating.