ECOLOGY

Original paper

UDC 681.518

Authors: S.G. Pachkin, P.P. Ivanov, L.A. Ivanova, E.S. Mikhaylova, A.G. Semenov, 2025

ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2025, № 7, pp. 87-91

DOI: http://dx.doi.org/10.18796/0041-5790-2025-7-87-91

Title

AUTOMATION OF THE CONTINUOUS FLOTATION TREATMENT PROCESS FOR OPEN-PIT DRAIN WATER

Authors

S.G. Pachkin, P.P. Ivanov, L.A. Ivanova, E.S. Mikhaylova, A.G. Semenov

Kemerovo State University, Kemerovo, 650000, Russian Federation
e-mail: sergon777@inbox.ru

Authors Information

Pachkin S.G. – PhD (Engineering), Associate Professor, Associate Professor of Department of Mechatronics and Automation of Technological Systems, Kemerovo State University, Kemerovo, 650000, Russian Federation, e-mail: sergon777@inbox.ru
Ivanov P.P. – PhD (Engineering), Associate Professor, Associate Professor of Department of Mechatronics and Automation of Technological Systems, Kemerovo State University, Kemerovo, 650000, Russian Federation, e-mail: ipp7@yandex.ru
Ivanova L.A. – PhD (Engineering), Associate Professor, Associate Professor of Department of Technosphere Safety, Kemerovo State University, Kemerovo, 650000, Russian Federation, e-mail: lyuda_ivan@mail.ru
Mikhaylova E.S. – PhD (Chemistry), Head of the Department for Implementation of Integrated Scientific and Technical Program, Kemerovo State University, Kemerovo, 650000, Russian Federation, e-mail: e_s_mihaylova@mail.ru
Semenov A.G. – Doctor of Engineering Sciences, Professor, Department of Theory and Methods of Teaching Natural Science and Mathematical Disciplines, Kemerovo State University, Kemerovo, 650000, Russian Federation, e-mail: agsem55@yandex.ru

Abstract

One of the most commonly used methods of reactant treatment of open-pit drain water is flotation. As the result of a chemical reaction, ions of the dissolved pollutants are changed into a bound insoluble state, which creates conditions for their mechanical separation from the treated water. Horizontal multi-chamber flotation machines are often used for this operation, allowing both floating and settling agglomerates to be separated under the pressure flotation conditions. The efficiency of flotation treatment depends on the correct concentration of the chemical reactant and the amount of time it interacts with the pollutants. The automatic control system for the reactant pressure flotation process is characterized by the presence of interrelated parameters, the control of which by means of independent control systems causes fluctuations in the transition process, which in turn reduces the efficiency of treatment. The developed automatic control system allows taking into account the mutual influence of the controlled parameters by introducing additional compensators into the scheme, which ensure the formation of preceding control signals for the related circuits.

Keywords

Open-pit drain water, automatic control system, flotation treatment, flotation unit, interacting control, compensator.

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. 1144р of the Government of the Russian Federation dated May 11, 2022, with financial support by the Ministry of Science and Higher Education of Russian Federation, Agreement No. 075-15–2022-1201 as of September 30, 2022.

For citation

Pachkin S.G., Ivanov P.P., Ivanova L.A., Mikhaylova E.S., Semenov A.G. Automation of the continuous flotation treatment process for open-pit drain water. Ugol’. 2025;(7):87-91. (In Russ.). DOI: 10.18796/0041-5790-2025-7-87-91.

Paper Info

Received February 01, 2025
Reviewed June 17, 2025
Accepted June 27, 2025