| Bibliographic description |
Krasilnikova S. Investigation of the site which previous spillway by acid waters on the Shirokovskaya mine (Kizel coal basin) // Transbaikal State University Journal, 2017, vol. 24, no. 1, pp. 10–17 |
| Annotation |
The research of the oldest in the Urals Kizelovsky coal basin, located on the territory of the Perm region, is presented. It was noted that the development of coal deposits lasted more than 200 years. It is established that in the early 90's. XX century. the Kizelugol merger was recognized as unprofitable due to the fact that in 1992-2000 all coal mining enterprises of the association were closed. It is shown that the closure of the mines did not solve the environmental problems of the territory. It was revealed that acidic highly mineralized mine waters began to flow spontaneously onto the surface and pollute the rivers. It is determined that in soil areas that are significant in the area of rock dumps, industrial sites of mines and adjacent territories, there is no soil-vegetation layer, which requires reclamation work. The chemical and mineralogical features of lands disturbed as a result of the previous discharge of acid mine waters on the territory of the Kizelovsky coal basin are considered. The largest area of the former spillway of the Shirokovskaya mine was investigated, which was formed during the operation of the mine, when acid mine water had to be pumped out and dropped to the surface to the nearest watercourse. Detailed survey showed that the length of the site is about 2 km, width - 100 m and more. It was revealed that the soils from the contaminated area have an acidic reaction of pH 2,3 ... 3,0. At the same time, an increased content of trace elements, Cu, Zn, Pb and Mo, characteristic for this territory was recorded. A vertical section of man-made soils in a section up to a depth of 80 cm was studied, as a result of which it was found that these soils are a substrate not suitable for the development of plants. It is shown that spontaneous overgrowing of these sites does not occur, although the discharge of mine waters has not been carried out for about 20 years. The carried out research led to the conclusion that Removal of chemical elements from these areas with water flows leads to contamination of surface and groundwater, adjacent territories, causing degradation of existing ecosystems. The necessity of re-cultivation of disturbed lands is determined |
| References |
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