Modeling Sulfide Oxidation Processes in the Vysokogorsky Tailing Dam in the Temperature Range from –25 to 0°С (Kavalerovsky District, Primorsky Krai)

Abstract

The article presents the results of physicochemical modeling of the oxidation of sulfide minerals in the tailings of the Vysokogorsky tailing dam in the temperature range from –25 to 0°С, with one-by-one exclusion of sulfide minerals from the model systems. The Eh-pH parameters of the technogenic mineral formation systems have been determined at different host rock–sulfide ratios in the tailings (95: 5, 90: 10, 80: 20, and 20: 80). Crystallization of hypergene minerals have been considered, aqueous solutions qualitative and quantitative ion compositions have been determined, and their effect on the hydrosphere has been assessed.