IMPACT OF TECHNOGENIC FACTORS ON SURFACE WATER OF THE ILEK RIVER BASIN
Berdenov Zh.G. Safarov R.Z. Mendybaev E.Kh. Shomanova Zh.K. Ilies D.C.
2022National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2022#2022Issue 537 - 50 pp.
The article presents the general scope of anthropogenic factors that negatively affecting the geosystems of the Ilek river basin. The paper considers the hydrochemical investigations of the Ilek river and large tributaries as a result of expeditionary observations for 2021. Natural and technogenic factors that have been affecting the geosystems of the Ilek river basin for many decades have been identified. Paper reveals its dependence with the elements of the technosphere based on the results of chemical analyzes of surface water samples from key areas. The research showed the relations between development of industry and technogenic load of the basin’s geosystem. In the upper part of the Ilek basin, there is a high content of copper and zinc in surface waters. Pollution in this area belongs to the second hazard class. The exceeding of MPC in some places reaches 40-45 times, since the territory of the basin is located in close proximity to the large junction railway station Kandagash. In the middle reaches, the Aktobe plant of chrome compounds (APCC), Aktobe ferroalloy plant of TNK Kazchrome JSC (AFP) are also threatening for the waters of the basin, which intensively pollute river waters with the hexavalent chromium compounds from accumulations, the chrome-containing sludge of APCC and slags of the AFP. The research established contamination of the tributaries of the Ilek river of the first and second order, in the northeastern part of the basin, with heavy metals as a consequence of the mining industry and geological exploration. The water pollution index (WPI) of the Ilek river and large tributaries has been calculated. The calculated WPI value is in the range of 2.5-11.
geoecological state , hydrochemical indicators , Ilek river , river basin , technogenesis
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L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
K. Zhubanov Aktobe Regional State University, Aktobe, Kazakhstan
Pavlodar Pedagogical University, Pavlodar, Kazakhstan
University of Oradea, Oradea, Romania
L.N. Gumilyov Eurasian National University
K. Zhubanov Aktobe Regional State University
Pavlodar Pedagogical University
University of Oradea
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