The Role of Anionogenic Elements (As, Sb, Mo, Se, S, P, N, Cl, F, C) in the Formation of Technogenic Geochemical Anomalies
(ИНГГ СО РАН)
(ИНГГ СО РАН)
дата публикации: 2018
The study was conducted on the example of sulphide-containing mine tailings with a varying amount of sulphide and arsenide minerals, from three distinct tailings dumps situated in Russia: Karabash Mine Site, South Ural; Komsomolsk tailings impoundment, Kemerovo region; Khovu-Aksy mine site, Tuva Republic. The aim of the study was to compare the mobility of anionogenic elements (As, Sb, Mo, Se, S, P, N, Cl, F, C) and their role in migration, precipitation, and concentration of metals during the water-tailings interaction depending on the physicochemical parameters (pH, Eh) of the medium and the mineral composition of the waste material. Using slightly acidic leaching experiments the quantitative estimation of mobile forms of elements is given. Based on the compositions of the obtained water leaching solutions, aqueous speciation of chemical elements and saturation index of key minerals in the experimental solutions were calculated. The results of calculating forms of chemical elements made it possible to construct series of mobility of metals and metalloids in solutions with different physicochemical parameters.
первоисточник: IOP Conference Series: Earth and Environmental Science. World Multidisciplinary Earth Sciences Symposium (WMESS 2017) (Prague, Czech Republic, 11-15 September 2017)
страницы: 042024-1 - 042024-7