Research progress on tailings soilification and ecological restoration technologies for non-ferrous metal mines
Non-ferrous metal mine tailings are characterized by large quantities,complex compositions,high heavy metal content,and low utilization rates.The stockpiling of these tailings not only occupies vast tracts of land but also poses potential environmental pollution risks.Using"artificial soil"formed by tailings soilification as a substrate for ecological restoration represents a novel,green,efficient,and sustainable approach to comprehensive tailings utilization.This paper elaborates on the typical soilification technologies for non-ferrous metal mine tailings,analyzes the current status of soilification technologies for lead-zinc,copper,gold,and rare earth tailings,discusses the challenges in utilizing soilified non-ferrous metal tailings,and provides a forward-looking perspective to offer a reference for the green and comprehensive utilization of large-scale tailings from non-ferrous metal mines.