The characteristics of urban solid waste processed by the municipal solid waste incinerator (MSWI) in the urban area of Hengyang City, Hunan Province are as follows: food waste 37.19%, paper 22.9%, rubber 22.84%, textile (fiber) 9.93%, wood and bamboo 3.41%, ash and soil 0%, brick, tile and ceramics 1.15%, glass 2.14%, metal 0.45%, and other 0%. It has a moisture content of 51.43%, higher calorific value of 9094.91 kJ/kg, and lower calorific value of 7146 kJ/kg. 88 kJ/kg. Waste treatment activities are based on an average urban/municipal waste mixture and are not suitable for single specific wastes such as plastic, paper, cardboard, etc. If your waste is a specific waste mixture, please inventory the corresponding waste separately. Each kg of this waste will produce 0.205 kg of slag and 0. Fly ash and slag, at a rate of 05kg, are subjected to precious metal recovery before being landfilled. Fly ash is solidified with cement at a ratio of 1:1. The average thermal efficiency of waste heat power generation is taken as 22%; the waste heat supply process does not involve different forms of heat and energy conversion, so the thermal efficiency is higher, taken as an average of 64%; through the comprehensive thermal efficiency of waste heat power generation and direct heat supply, 15% of the heat generated during the waste incineration process is used for power generation, and 56% is used for direct heating.