FEASIBILITY OF TAILINGS RECLAMATION FOR UNDERGROUND PASTE AND HYDRAULIC BACKFILL APPLICATIONS

World Mining Congress
Acid-producing mine tailings are present at many active and inactive mine sites and pose an environmental liability due to the potential for acid rock drainage. Acid rock drainage originating from a tailings pile, a waste rock pile, or exposed sulfide-rich rock, can cause discoloration and turbidity in receiving waters, and the loading of ions mobilized by the acid can cause a decrease in aquatic flora and fauna, and reduction in the quality of groundwater. The primary cause of acid generation is the oxidation of sulfide minerals, predominantly pyrite and pyrrhotite.
Keywords: tailings; Sand; Binder; Binders; Backfill; Backfills; Backfill; pyrrhotite; Strength; Materials;
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