Waste-rock hydrogeology and geochemistry

摘要: Abstract The oxidation of sulfide minerals in waste rock has the potential to generate low-quality drainage that can present a significant challenge mine owners, regulators, and other stakeholders. Challenges involved managing include large volume produced difficulty predicting quality quantity leach water due chemical physical heterogeneities rock, highly non-linear coupling geochemical processes. Many important studies have been conducted over past decade, particularly at field scale, investigated geochemical, hydrological, microbiological, gas heat transport aspects waste-rock. These show although parameters processes influence AMD generation solute release are fundamentally similar between different waste-rock piles, major differences dominant mechanisms water, result from mineralogical properties climatic conditions, including amount precipitation prevailing temperatures. Accurate prediction requires detailed characterization piles specific particular conditions. This paper provides review characteristics followed by discussion principal related loading, concluding with on acid prevention techniques.