Original Paper

UDC 552.574 N.M. Bolotin, 2023

ISSN 0041-5790 (Print) ISSN 2412-8333 (Online) Ugol  Russian Coal Journal, 2023, S12, pp. 46-49





Bolotin N.M.1,2

1 Institute of the Earths Crust of SB RAS, Irkutsk, 664033, Russian Federation

2 LLC Research and Production Company Spirit, Irkutsk, 664033, Russian Federation

Authors information

Bolotin N.M., Leading Engineer, Department of Integrated Utilization of Mineral Raw Materials, Beneficiation engineer, e-mail:


The article discusses the issue of processing coal sludge from Kuzbass, which negatively affects the ecosystem of the region. Known modern methods of their processing do not always meet environmental requirements, so the demand for environmentally friendly technologies remains in the first place. The author presents the results of laboratory and industrial tests performed using gravitational enrichment technology based on the screw separation method, which, as everyone knows, is distinguished by its environmental friendliness and simplicity.


Coal sludge, Enrichment, Commercial product, Spiral separation, Coal sludge processing, Environmentally friendly technology.


1. Energy Strategy of the Russian Federation until 2035 approved by the Government of the Russian Federation, Decree No 1523-r as of June 09, 2020 pp. 18-19. (In Russ.).

2. State Report on the condition and use of mineral resources of the Russian Federation in 2021, pp. 73-90. (In Russ.).

3. Tarazanov I. Russias Coal Industry Performance in 2012. Ugol, 2013, (3), pp. 78-90. Available at: (accessed 15.11.2023). (In Russ)

4. Federal Subsoil Resources Management Agency: Information materials for the tercentennial anniversary of Kuzbass History of industrial development. [Electronic resource]. Available at: article/13345.html (accessed 15.11.2023). (In Russ.).

5. The Kuznetsk coal basin. [Electronic resource]. Available at: https://dic. (accessed 15.11.2023). (In Russ.).

6. Kozlov V.A., Novak V.I. Optimization of coal preparation plant operation to maximize concentrate yield. Gornyj informatsionno-analiticheskij byulleten', 2019. pp. 175-186. (In Russ.).

7. Sipotenko A.I. & Kotkin A.M. Enhancement of equipment and technology of sludge treatment to reduce its yield as a separate marketable product, Moscow, TsNIEIUgol Publ., 1991. (In Russ.).

8. Prokopyev E.S. & Alekseyeva O.L. Feasibility study of processing coal-bearing wastes of the sludge storage at the West Siberian Metallurgical Works. Nauki o Zemle i nedropol'zovanie, 2022, Vol. 45, (4), pp. 446-457. (In Russ.).

9. Soloveyenko N.P. & Bolotin N.M. Application of screw separation technology in coal sludge processing. Nauki o Zemle i nedropol'zovanie, 2022, Vol. 45, (4), pp. 469-480. (In Russ.).

10. Kireyev S.A. Current state and environmental assessment of the impact of rock dumps of coal industry operations. Izvestiya Tul'skogo gosudarstvennogo universiteta. Nauki o Zemle, 2022, pp. 62-70. (In Russ.).

11. Behera B. & Sahu H.B. Coal mine waste characterization and defluoridation property. Heliyon, 2023, (9). e13244.

12. Kopobayeva A.N., Portnov S. & Kim S.P. Tectonic factors of impurity elements accumulation at the Shubarkol coal deposit (Kazakhstan). January. 2020. DOI: 10.33271/nvngu/2021-5/011.

13. Thang N.C., Tuan N.V. & Hiep D.N. The Potential Use of Waste Rock from Coal Mining for the Application as Recycled Aggregate in Concrete. October. 2020.

14. Ucara A., Sahbaza O. & Ediza N. An investigation into the enrichment of coal wastes of Western Lignite Company (WLC) by physical and physicochemical methods. Madencilik  Mining, 2023, 62(1). pp. 7-15.

15. Moszko J.C., Wierzchowski K. & Klupa A. Evaluation of the Possibility of the hard coal sludge enrichment by flotation, 2020. https://doi. org/10.21203/ December 17th.

16. Sipotenko A.I. & Kotkin A.M. Enhancement of equipment and technology of sludge treatment to reduce its yield as a separate marketable product. Moscow, TsNIEIUgol Publ., 1991. (In Russ.).

17. Kozlov V.A. & Novak V.I. Application of column flotation in the coal in? dustry. Gornyj informatsionno-analiticheskij byulleten', 2011, (4), pp. 277-282. (In Russ.).

18. Novak V.I. Justification and development of a rational technology of flocculation separation of fine coal slimes. Moscow, IOTT-MGGU Publ., 2012. (In Russ.).

19. Belousov V.A. Main trends in intensification of coal flotation preparation. Mezhdunarodnyj zhurnal prikladnykh i fundamental'nykh issledovanij, 2014, (11-5), pp. 719-721. (In Russ.).

20. Turetskaya N.Yu. & Chikisheva T.A. Processing of sludge from coal sludge ponds using the screw separation technique. Nauki o Zemle i nedropol'zovanie, 2022, Vol. 45, (4), pp. 436-445. (In Russ.).


The research was performed as part of the Integrated Scientific and Tech? nical Programme of the Ministry of Science and Higher Education of the Russian Federation 075-15-2022-1192 Processing of coal mill tailings in order to obtain commercial coal concentrate with support of the De? velopment 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- of the Government of the Russian Federa? tion on May 11, 2022.

For citation

Bolotin N.M. Results of work of ecological experimental industrial installa? tions at the flotation waste hydro disposal of the Kuzbass CEP. Ugol, 2023, (S12), pp. 46-49. (In Russ.). DOI: 10.18796/0041-5790-2023-S12-46-49.

Paper info

Received November 1, 2023

Reviewed November 15, 2023

Accepted November 26, 2023