Cradle to Gate
Identity ID
e0225873-2cd6-4e68-90c3-798df6922e95
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 mixture. It is not suitable to represent any single specific waste such as plastics, paper or cardboard. The municipal solid waste characteristics of Shenzhen City, Guangdong Province are as follows: kitchen waste 30.43%, paper 15.26%, rubber 32.88%, textiles (fibre) 9.03%, wood and bamboo 6.06%, ash and soil 0.44%, bricks, tiles and ceramics 0.75%, glass 2.07%, metals 1.85%, others 1.23%. Moisture content 49.12%, higher heating value 9846.95 kJ/kg, lower heating value 7923.34 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 2.54E-04 kWh of electricity and 9.13E-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,Guangdong,Shenzhen
Geography comment
The site's annual mean temperature (MAT) is 23.1848882661599 degrees Celsius, and its annual mean precipitation (MAP) is 1729.25709774497 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.