Cradle to Gate
Identity ID
d0fe3cc2-70a0-4c01-97a0-b3d80b4d9b58
Materials
Associated ID
c02d29fb-ab83-41b5-bfed-bd160d74d070
Included activities starts
Included activities ends
Description
The waste aluminum suitable for this process mainly includes various aluminum-containing wastes such as aluminum wires, beverage cans, automotive parts, and scrap aluminum doors and windows. This process primarily uses electricity and the combustion of various fossil fuels to melt aluminum-containing scrap. After melting, other elements are added to adjust the alloy composition, while physical methods are employed to remove dross formed during melting. The refined waste aluminum is then cast into aluminum ingots.
Lime is used during processing to remove impurities from molten aluminum or as a desulfurizing agent; sodium hydroxide with 100% purity is required, mainly to remove organic contaminants; electricity, natural gas, anthracite coal, and other fuels provide the heat required for melting. The processing generates wastewater containing anthracene oil, COD, ammonia nitrogen, petroleum pollutants, and phenol, as well as exhaust gases containing sulfur dioxide, benzo(a)pyrene, carbon tetrafluoride, hexafluoroethane, and hydrogen fluoride, which are discharged directly into the atmosphere after treatment.
Activity Description
This dataset represents the process of producing recycled aluminum through melting and refining waste aluminum. The process includes the consumption of energy and auxiliary materials, as well as the generation of exhaust gas and wastewater.
Process Description
Scrap aluminum is melted, alloyed, further refined and cast to finally produce aluminum ingots.
Time period
2010
2026
Geography
China
Geography comment
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Smelting waste aluminum to produce recycled aluminum through melt recycling.