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Elena Menshikova; Roman Perevoshchikov; Pavel Belkin; Sergey Blinov. Concentrations of Natural Radionuclides (40K, 226Ra, 232Th) at the Potash Salts Deposit. Journal of Ecological Engineering 2021, 22, 179 -187.
AMA StyleElena Menshikova, Roman Perevoshchikov, Pavel Belkin, Sergey Blinov. Concentrations of Natural Radionuclides (40K, 226Ra, 232Th) at the Potash Salts Deposit. Journal of Ecological Engineering. 2021; 22 (3):179-187.
Chicago/Turabian StyleElena Menshikova; Roman Perevoshchikov; Pavel Belkin; Sergey Blinov. 2021. "Concentrations of Natural Radionuclides (40K, 226Ra, 232Th) at the Potash Salts Deposit." Journal of Ecological Engineering 22, no. 3: 179-187.
In terms of anthropogenic impact of mining and processing enterprises, the adjacent territories are contaminated by upstream tailings dams. The contamination is developed by active seepage of liquid waste through the body of the dams. The authors have analyzed water balance at the Kachkanar Mining and Processing Plant tailings dump (Russia, Ural Region). The company develops vanadium-containing titanium-magnetite iron ores with low ore (15%). This, along with high productivity, has determined the formation of a large number of tailings and significant amount of wastewater. The purpose of the studies is to substantiate the need to manage the seepage discharge process by means of enclosing dams to ensure environmentally safe operation of the tailings dump. The research objectives included field measurements of seepage volumes, their evaluation by computational methods and analysis of anthropogenic geochemical load on natural waters. The obtained results show an increase in seepage discharge volume from 41.91 million m3 (in 2017) to 81.44 million m3 (in 2026) as the height of the dams increases. These losses will lead to water shortages in the enterprise’s water recycling system. Calculation of pollutants in wastewater with the exception of natural component showed the leading role of technogenic factor in the content of Ti (up to 84%), V (up to 96%), Co (up to 86%) and Mo (up to 93%). Increasing the volume of seepage discharge will lead to an increase in natural water pollution within the area. Ecologically efficient management of the enterprise’s water balance is ensured by the use of tailings thickening technology and implementation of closed water supply systems.
Elena Menshikova; Viacheslav Fetisov; Tatyana Karavaeva; Sergey Blinov; Pavel Belkin; Sergey Vaganov. Reducing the Negative Technogenic Impact of the Mining Enterprise on the Environment through Management of the Water Balance. Minerals 2020, 10, 1145 .
AMA StyleElena Menshikova, Viacheslav Fetisov, Tatyana Karavaeva, Sergey Blinov, Pavel Belkin, Sergey Vaganov. Reducing the Negative Technogenic Impact of the Mining Enterprise on the Environment through Management of the Water Balance. Minerals. 2020; 10 (12):1145.
Chicago/Turabian StyleElena Menshikova; Viacheslav Fetisov; Tatyana Karavaeva; Sergey Blinov; Pavel Belkin; Sergey Vaganov. 2020. "Reducing the Negative Technogenic Impact of the Mining Enterprise on the Environment through Management of the Water Balance." Minerals 10, no. 12: 1145.
The development of coal deposits is accompanied by negative environmental changes. In the territory of the Kizel coal basin (Perm Region, Russia), the problem of contamination of water sources by acid mine waters and runoff from rock dumps is particularly acute. Mine waters are acidic (pH 2–3), with high mineralization (up to 25 g/L) and significant content of sulfate ions, iron, aluminum, manganese, toxic trace elements (As, Co, Ni, Pb and Zn). They are formed as a result of the interaction of underground waters from flooded mines of the Kizel basin with coal and rocks of dumps with high sulfur content (15%). Uncontrolled inflow of mine water into rivers (about 22 million m3 annually) leads to significant amounts of iron and aluminum hydroxide precipitation. These precipitations are in active interaction with river water, polluting the rivers tens of kilometers downstream and are entering the Kama reservoir. Studies of alluvial precipitation can be considered as a method of control and predictors of technogenic water pollution. The mineral composition of river sediments was studied with the application of different methods, including studies of sand-gravel and silty-clayey sediments. The sandy-gravel grains in the bottom load are mainly composed by natural minerals and are represented by a significant number of particles of coal dumps, slags and magnetic spherules. The silty-clayey material, mixed with natural minerals, contains a significant number of amorphous phases with a predominance of iron-rich substances, which may actively concentrate toxic elements. The presence of jarosite, goethite, basaluminite, lepidorocite and copiapite in silty-clayey sediments are indicators of the influence of mine waters.
Elena Menshikova; Boris Osovetsky; Sergey Blinov; Pavel Belkin. Mineral Formation under the Influence of Mine Waters (The Kizel Coal Basin, Russia). Minerals 2020, 10, 364 .
AMA StyleElena Menshikova, Boris Osovetsky, Sergey Blinov, Pavel Belkin. Mineral Formation under the Influence of Mine Waters (The Kizel Coal Basin, Russia). Minerals. 2020; 10 (4):364.
Chicago/Turabian StyleElena Menshikova; Boris Osovetsky; Sergey Blinov; Pavel Belkin. 2020. "Mineral Formation under the Influence of Mine Waters (The Kizel Coal Basin, Russia)." Minerals 10, no. 4: 364.