Waste aluminum suitable for this process mainly includes various types of aluminum-containing waste materials, such as aluminum wire, beverage cans, car parts, scrap aluminum windows and doors, etc. This process primarily uses electricity and the combustion of various fossil fuels to melt aluminum-containing waste materials. After melting, other elements are added to adjust the alloy composition, while various floating slags produced by melting are physically removed. The refined scrap aluminum is then cast into aluminum ingots. During processing, limestone is used to remove impurities from the molten aluminum or as a desulfurizer; Sodium hydroxide with a purity of 100% is mainly used to remove organic impurities. Electricity, natural gas, anthracite, and other fuels provide the heat needed for melting. The processing generates waste water containing anthracene oil, COD, ammonia nitrogen, oil pollutants, and phenol, and exhaust gas containing sulfur dioxide, benzo(a)pyrene, tetrafluoromethane, hexafluoroethane, and hydrogen fluoride, which are treated and then directly discharged into the atmosphere.