Cradle to Gate
Identity ID
5fd44815-1a8d-48d7-a5d4-015232c3f7d1
Energy
Associated ID
ffc5dd81-5b63-4cc1-9566-c0c87a5328b0
Included activities starts
Included activities ends
Description
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 mix. It is not suitable to represent any single specific waste such as plastics, paper or cardboard. The characteristics of municipal solid waste in Xiangtan, Hunan Province are as follows: food/kitchen waste 25.71%, paper 18.27%, rubber 22.26%, textiles (fibres) 11.24%, wood and bamboo 2.33%, ash and soil 11.16%, bricks/tiles and ceramics 1.77%, glass 2.37%, metals 2.03%, others 2.86%. Moisture 52.39%, higher heating value 8525.15kJ/kg, lower heating value 6747.63kJ/kg. The share of carbon in the initial waste that is of biogenic origin is 60.4%. The proportion of metals in the waste that is unoxidised and largely recoverable (excluding very small or very thin components): iron: 60.03%; aluminium: 17.81%; copper: 72.83%. Overall waste degradation rate over 100 years: 18.73%. Degradability of the constituent waste fractions: paper: 27%; mixed cardboard: 32.4%; plastics: 1%; laminated materials: 18%; laminated packaging such as beverage cartons: 18%; composite goods 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 capture and utilisation generates 2.03E-04 kWh of electricity and 7.33E-01 MJ of useful heat.
Process Description
Heat is generated during landfill disposal activities and is often reused within the activity itself.
Time period
2021
2026
Geography
China,Hunan,Xiangtan
Geography comment
The site's annual mean temperature (MAT) is 15.3861816862661 degrees Celsius, and its annual mean precipitation (MAP) is 1662.45275043442 mm/year. The average residence time of leachate that seeps into landfills is 10 years.
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
This is an inventory of sanitary (controlled) landfills for municipal solid waste. The final average landfill height is 20 meters. The operational phase lasts 30 years. Landfill gas collection and utilization begin one year after waste disposal and continue for 30 years. The conversion efficiency of landfill gas utilization is 70%, of which 50% is converted to electrical energy and 50% to heat. Leachate collected during the first 100 years is treated before discharge.