Modeling of Thermal-Hydrological-Chemical (THC) Processes During Waste Rock Weathering Under Permafrost Conditions

• Published in: Frontiers in Water
• Main Authors: Xueying Yi, Danyang Su, Nicolas Seigneur, Klaus Ulrich Mayer
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media S.A. 2021
• Subjects: reactive transport modeling; waste rock; freeze-thaw (F/T) cycle; permafrost; thermal cover; water quality; Environmental technology. Sanitary engineering; TD1-1066; Rock Pile
• Online Access: https://doi.org/10.3389/frwa.2021.645675; https://doaj.org/article/9d9653a7947a40d2b5ac8cb98fb690eb

The oxidation of sulfide minerals such as pyrite present in waste rock results in elevated sulfate, enhanced metal loadings and in many cases low pH conditions. Recently, many mines have opened in remote areas, including regions subject to permafrost conditions. In these regions, freeze-thaw cycles...