Improving the re-use potential of reactive waste rock using sieving: a laboratory geochemical study.

ABSTRACT: Stockpiles containing sulfide minerals are subject to oxidation reactions when exposed to atmospheric conditions, which can result in the formation of acid mine drainage (AMD). Reactive waste rock has limited re-use potential due to the contamination risk associated with the generated drainage water. The re-use of reactive waste rock could lead to a significant reduction in the volume of waste rock as it mitigates the environmental impact of mine waste deposition. Acid mine drainage generation rate depends on sulfide weathering kinetics which are controlled by many parameters such as the mineralogy and the particle size. Fine fractions of waste rock have higher specific surface areas and degree of liberation of sulfides, resulting in greater reactivity than the coarse fractions. The object

SUBMITTER: Sylvain K 

PROVIDER: S-EPMC11415455 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature