The role of efflorescent salts associated with sulfide-rich mine wastes in the short-term cycling of arsenic: Insights from XRD, XAS, and µ-XRF studies

• Published in: Journal of hazardous materials Vol. 404; no. Pt A; p. 124158
• Main Authors: Nieva, N.E., Garcia, M.G., Borgnino, L., Borda, L.G.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 15.02.2021
• Subjects: AMD; Copiapite; Salt efflorescences; XAS; AMD; Copiapite; XAS; Salt efflorescences

The evaporation of As-rich leachates generated by the weathering of sulfide-rich mine wastes accumulated in abandoned tailing dams of the La Concordia mine, triggers the widespread precipitation of saline crusts and efflorescences. Because these salts are highly soluble, they may release high concen...