Study on Heavy Metal Analysis Before and After Fly Ash Sintering Based on Coupled Molding Combustion of Multi-Source Solid Wastes

This project investigates the migration and transformation of heavy metals (Pb, Cd, Zn) during the coupled molding combustion of multi-source solid wastes (fly ash, coal slime, sludge). It explores mineral phase reconstruction and how heavy metals stabilize from a surface-adsorbed state in raw fly ash to a glass-encapsulated or lattice state in sintered slag. By evaluating leaching characteristics and environmental resistance under acidic erosion, the study verifies the environmental safety of this synergistic disposal route, providing crucial data support for its industrial engineering application.