Study of the possibility to recycle brown coal processing waste into sorbents upon extraction of the humic substances

DOI: https://doi.org/10.30686/1609-9192-2025-4S-49-53

Читать на русскоя языкеE.V. Vorsina, T.V. Moskalenko, V.A. Mikheev
N.V. Chersky Mining Institute of the North of the Siberian Branch of the Russian Academy of Sciences, Yakutsk, Russian Federation
Russian Mining Industry №4S / 2025 p. 49-53

Abstract: The article presents the results of research into the alkaline activation of waste products that are formed after extraction of the humic substances from brown coals. The authors show the possibility and expediency of processing these wastes into sorbents using the brown coals of the Kharanorskoye deposit (Trans-Baikal Territory) and the Kangalassky deposit (Republic of Sakha (Yakutia)). The waste from the extraction of the humic substances was mixed with potassium hydroxide in the ratios of 0.5 g/g and 1 g/g of the dry weight of the waste to the weight of potassium hydroxide, and were subjected to thermolysis under various process parameters. It was found that conducting alkaline activation of the waste at the temperature of 800°C for 60 minutes with the ratio of the dry weight of waste to the weight of potassium hydroxide equal to 0.5 g/g makes it possible to obtain samples with the adsorption activity of iodine above 40%. Increasing the thermolysis time to 90 minutes with the same process parameters makes it possible to obtain samples from Kharanor coal waste with the iodine adsorption activity of about 50%. Thus, during the experiments, the values of the iodine adsorption activity of the samples (40–50%) were obtained, which are comparable to the values of this indicator for some industrial brands of activated carbon.

Keywords: brown coal, coal waste, alkaline activation, carbon sorbent, activated coal, iodine adsorption activity, waste-free technology

Acknowledgments:The study was carried out within the State Assignment of the Ministry of Science and Higher Education of the Russian Federation (Topic No. 0297-2021-0022, EGISU NIOCTR No. 122011800089-2).

For citation: Vorsina E.V., Moskalenko T.V., Mikheev V.A. Study of the possibility to recycle brown coal processing waste into sorbents upon extraction of the humic substances. Russian Mining Industry. 2025;(4S):49–53. (In Russ.) https://doi.org/10.30686/1609-9192-2025-4S-49-53

Article info

Received: 21.06.2025

Revised: 13.08.2025

Accepted: 18.08.2025

Information about the authors

Elena V. Vorsina – Cand. Sci. (Eng.), Assistant Professor, Senior Researcher, Laboratory for Integrated Coal Utilization, N.V. Chersky Mining Institute of the North of the Siberian Branch of the Russian Academy of Sciences, Yakutsk, Russian Federation

Tatiana V. Moskalenko – Cand. Sci. (Eng.), Senior Researcher, Laboratory for Integrated Coal Utilization, N.V. Chersky Mining Institute of the North of the Siberian Branch of the Russian Academy of Sciences, Yakutsk, Russian Federation

Valery A. Mikheev – Cand. Sci. (Eng.), Leading Researcher, Laboratory for Integrated Coal Utilization, N.V. Chersky Mining Institute of the North of the Siberian Branch of the Russian Academy of Sciences, Yakutsk, Russian Federation; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

References

1. Kuznetsov P.N., Ilyushetchkin A., Chupin D., Sukhorukova M. Coal industry and the use of coal in the Russian Federation. In: Osborne D. (ed.) The Coal Handbook (Second edition): Towards Cleaner Coal Utilization. Elsevier Ltd.; 2023, pp. 301–320. https://doi.org/10.1016/B978-0-12-824327-5.00003-X

2. Харионовский А.А., Гришин В.Ю., Коликов К.С., Удалова Н.П. Проблемы использования отходов угледобычи. Горный информационно-аналитический бюллетень. 2021;(10-1):45–55. https://doi.org/10.25018/0236_1493_2021_101_0_45Harionovskij A.A., Grishin V.Yu., Kolikov K.S., Udalova N.P. Problems of using coal mining waste. Mining Informational and Analytical Bulletin. 2021;(10-1):45–55. (In Russ.) https://doi.org/10.25018/0236_1493_2021_101_0_45

3. Москаленко Т.В., Ворсина Е.В. Управление отходами горной промышленности как элемент устойчивого развития Республики Саха (Якутия). Вестник Иркутского государственного технического университета. 2014;(10):98–102. Режим доступа: https://journals.istu.edu/vestnik_irgtu/journals/2014/10/articles/15 (дата обращения: 27.06.2025).Moskalenko T.V., Vorsina E.V. Mining industry waste management as an element of Sakha Republic (Yakutia) sustainable development. Proceedings of Irkutsk State Technical University. 2014;(10):98–102. (In Russ.) Available at: https://journals.istu.edu/vestnik_irgtu/journals/2014/10/articles/15 (accessed: 27.06.2025).

4. Фазылов С.Д., Сатпаева Ж.Б., Нуркенов О.А., Карипова Г.Ж., Мулдахметов М.З., Животова Т.С., Мукашев А.Б. Новые перспективы нетопливного использования химического потенциала бурых и некондиционных углей. Научное обозрение. Технические науки. 2016;(4):101–106. Режим доступа: https://science-engineering.ru/ru/article/view?id=1104 (дата обращения: 27.06.2025).Fazylov S.D., Satpaeva Zh.B., Nurkenov O.A., Karipova G.Zh., Muldakhmetov M.Z., Zhivotova T.S., Mukashev A.B. New prospects of non-fuel use of chemical potential of brown and substandard coal. Scientific Review. Technical Science. 2016;(4):101–106. (In Russ.) Available at: https://science-engineering.ru/ru/article/view?id=1104 (accessed: 27.06.2025).

5. Копп Д.Д., Портнова А.В., Фарберова Е.А. Разработка методов переработки бурого угля. Вестник Пермского национального исследовательского политехнического университета. Химическая технология и биотехнология.2019;(4):133–146. https://doi.org/10.15593/2224-9400/2019.4.12Kopp D.D., Portnova A.V., Farberova E.A. Development of brown coal conversion methods. PNRPU Bulletin. Chemical Technology and Biotechnology. 2019;(4):133–146. (In Russ.) https://doi.org/10.15593/2224-9400/2019.4.12

6. Антонинова Н.Ю., Собенин А.В., Усманов А.И., Горбунов А.А. Обоснование возможности применения отходов производства гуминовых препаратов для очистки сточных вод от металлов (Cd2+, Zn2+, Mg2+, Cu2+) с целью разработки эффективных мероприятий по экологической реабилитации. Записки Горного института. 2024;267:421–432. Режим доступа: https://pmi.spmi.ru/pmi/article/view/16377 (дата обращения: 27.06.2025).Antoninova N.Y., Sobenin A.V., Usmanov A.I., Gorbunov A.A. Rationale for a possibility of using humic preparations production waste for wastewater purification from metals (Cd2+, Zn2+, Mg2+, Cu2+) aimed at developing efficient measures on environmental rehabilitation. Journal of Mining Institute. 2024;267:421–432. Available at: https://pmi.spmi.ru/pmi/article/view/16377 (accessed: 27.06.2025).

7. Suliman M.A., Sajid M., Nazal M.K., Islam Md.A. Carbon-based materials as promising sorbents for analytical sample preparation: Recent advances and trends in extraction of toxic metal pollutants from various media. TrAC Trends in Analytical Chemistry. 2023;167:117265. https://doi.org/10.1016/j.trac.2023.117265

8. M.-H. Zhao, X. Bai, X. Fan, Y. Li, Yi Liu, J.-L. Huang et al. Removal behaviors of phenol from aqueous solution using industrial coal sludge-derived porous carbon sorbent. Journal of Molecular Liquids. 2023;385:122427. https://doi.org/10.1016/j.molliq.2023.122427

9. Kabiri S., Navarro D.A., Hamad S.A., Grimison C., Higgins C.P., Mueller J.F. et al. Physical and chemical properties of carbonbased sorbents that affect the removal of per- and polyfluoroalkyl substances from solution and soil. Science of The Total Environment. 2023;875:162653. https://doi.org/10.1016/j.scitotenv.2023.162653

10. Song W.-G., Zeng H.-J., Wang B., Huang X.-H., Li X.-M., Sun G.-H. A review of low-rank coal-based carbon materials. New Carbon Materials. 2024;39(4):611–632. https://doi.org/10.1016/S1872-5805(24)60872-3

11. Vorsina E.V., Moskalenko T.V., Mikheev V.A. The generation of absorption qualities of lignite absorbents under conditions of alkali activation. IOP Conference Series: Earth and Environmental Science. 2020;459:052056. https://doi.org/10.1088/1755-1315/459/5/052056

12. Ворсина Е.В., Москаленко Т.В., Михеев В.А. Технологическая схема проведения парогазовой активации бурого угля. Горный информационно-аналитический бюллетень. 2024;(7-1):137–147. Vorsina E.V., Moskalenko T.V., Mikheev V.A. Technological scheme for steam-gas activation of brown coal. Mining Informational and Analytical Bulletin. 2024;(7-1):137–147. (In Russ.)