This dataset represents the waste treatment activity of "municipal solid waste" in sanitary landfills. This dataset is recommended for use with average municipal/public waste mixtures. It is not suitable to represent any single specific waste type, such as plastics, paper, or cardboard. The composition of municipal solid waste in the Ningdong Energy and Chemical Industry Park, Ningxia Hui Autonomous Region are as follows: kitchen waste 35.7%, paper 2.1%, rubber 4.1%, textiles (fibers) 1.2%, wood and bamboo 1.7%, ash and soil 0%, bricks, tiles and ceramics 45.7%, glass 0.4%, metals 0.2%, others 8.9%. Moisture content: 55. 81%, higher heating value 4907.39 kJ/kg, lower heating value 3368.45 kJ/kg. The carbon fraction in the initial waste, i.e., biogenic: 60.4%. Proportions of non-oxidized and largely recyclable metals in the waste (excluding very small or very thin components): iron: 60.03%; aluminum: 17.81%; copper: 72.83%. Overall degradation rate of waste over 100 years: 18.73%. Degradability of waste components: paper: 27%; mixed cardboard: 32. Plastics: 1%; laminated materials: 18%; laminated packaging, such as beverage cartons: 18%; composite products, such as disposable diapers: 18%; glass: 0%; textiles: 12%; minerals: 0%; natural products: 27%; compostable materials: 27%; inert metals: 10%; volatile metals: 0%; batteries: 0%; electronics: 0%; landfill gas recovery and utilization generates 2.76E-05 kWh of electricity and 9.93E-02 MJ of useful heat.