This dataset represents the waste treatment activity of "municipal solid waste" in a sanitary landfill. Recommended use of this dataset: for an average municipal/public waste mixture. It is not suitable to represent any single specific waste such as plastics, paper or cardboard. The municipal solid waste characteristics of Nanchong City, Sichuan Province are as follows: kitchen waste 50.09%, paper 15.54%, rubber 12.63%, textiles (fibre) 2.34%, wood and bamboo 7.78%, ash and soil 0.32%, bricks, tiles and ceramics 1.42%, glass 0.09%, metals 0.8%, others 0%. Moisture content 64.86%, higher heating value 5930.68 kJ/kg, lower heating value 4117.5 kJ/kg. The carbon fraction in the initial waste, i.e. of biogenic origin, is 60.4%. The proportion of unoxidised and bulk-recoverable metals in the waste (excluding very small or very thin components): iron: 60.03%; aluminium: 17.81%; copper: 72.83%. Overall degradation rate of the waste over 100 years: 18.73%. Degradability of the constituent waste fractions: paper: 27%; mixed cardboard: 32.4%; plastics: 1%; laminated materials: 18%; laminated packaging, e.g. beverage cartons: 18%; composite goods, e.g. 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 capture and utilisation produces 2.09E-04 kWh of electricity and 7.51E-01 MJ of useful heat.