ECOLOGY
Original Paper
UDC 628.3:622 © L.A. Ivanova, O.V. Belyaeva, N.V. Gora, I.M. Ugarova, N.S. Golubeva, 2023
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2023, № 11, pp. 81-87
DOI: http://dx.doi.org/10.18796/0041-5790-2023-11-81-87
Title
EFFICIENCY ANALYSIS OF METHODS TO REMOVE IRON AND MANGANESE IONS FROM COAL INDUSTRY WASTE WATER
Authors
Ivanova L.A.1, Belyaeva O.V.1, Gora N.V.1, Ugarova I.M.1, Golubeva N.S.1
1Kemerovo State University, Kemerovo, 650000, Russian Federation
Authors Information
Ivanova L.A., PhD (Engineering), Associate Professor, e-mail: lyuda_ivan@mail.ru
Belyaeva O.V., PhD (Chemistry), Associate Professor
Gora N.V., PhD (Engineering), Associate Professor
Ugarova I.M., Postgraduate student
Golubeva N.S., PhD (Engineering), Associate Professor
Abstract
In the natural environment heavy metal pollution in most cases affects quarry and mine waters. These waters penetrate into the working zone of underground mines from aquifers, surface reservoirs and drainage workings. Waste waters of coal operations are characterized with a high degree of mineralization, low concentration of hydrogen ions, increased content of magnesium and calcium salts, as well as sulphates, iron, manganese and other compounds. The variety of qualitative and quantitative composition of waste water at coal mining companies is conditioned by many factors, namely the geological and hydrological conditions, saturation with salts as a result of water filtration through different types of rocks, as well as mixing of natural reservoir waters from different horizons as a result of their penetration.
The article analyzes the efficiency of the existing system to remove iron and manganese ions from coal mine waste water. The main methods of additional treatment of waste water from these ions are discussed together with their advantages and disadvantages. A process flow is proposed for additional waste water treatment before its discharge into rivers, which includes reception and averaging of waste water; settling; subsequent intake and feeding of clarified water into a treatment plant for further additional treatment; chemical treatment; pressure flotation; filtration through a sand filter; and additional water treatment on sorption filters.
Keywords
Adsorption, Waste water, Heavy metals, Iron, Manganese, Treatment methods, Maximum allowable concentration, Settling, Mechanical filtration, Galvanic coagulation.
References
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Acknowledgements
The research was carried out as part of the ‘Development and implementation of complex technologies in the areas of exploration and extraction of minerals, industrial safety, bioremediation, creation of new deep conversion products from coal raw materials while consistently reducing the environmental impact and risks to human life’ Integrated Scientific and Technical Programme of the Full Innovation Cycle, approved by Order No. 1144-r of the Government of the Russian Federation dated May 11, 2022, Agreement No. 075-15–2022-1201 as of September 30, 2022.
For citation
Ivanova L.A., Belyaeva O.V., Gora N.V., Ugarova I.M. & Golubeva N.S. Efficiency analysis of methods to remove iron and manganese ions from coal industry waste water. Ugol’, 2023, (11), pp. 81-87. (In Russ.). DOI: 10.18796/0041-5790-2023-11-81-87.
Paper info
Received April 24, 2023
Reviewed October 13, 2023
Accepted October 26, 2023
