Increasing environmental safety by reducing technogenic load in mining regions
https://doi.org/10.17073/0368-0797-2020-7-529-538
Abstract
One of the most problematic points in technology for storing ore enrichment waste materials with hardener admixture into underground mined space and tailing dumps are the tailings of hydrometallurgical plant (HMP). They are supplied through a slurry pipeline to the tailing dump in form of pulp with solid to liquid mass ratio of 1:2. Liquid phase of the pulp after gravity separation and clarification in tailing dump is returned to technological cycle of HMP. Storage technology under consideration has several disadvantages: high nonrecurrent capital costs for construction of tailing dump at full design capacity; high probability of harmful chemicals migration into groundwater if protective shields of the base or sides of tailings are damaged. The authors have used data from literature and patent documentation considering storage parameters, laboratory and production experiments, physical modeling and selection of compositions of hardening mixtures. Analytical studies, comparative analysis of theoretical and practical results by standard and new methods were performed. Possibility of using hardening mixtures with adjacent production wastes used as binders was established. Optimal composition of ingredients per 1 m3 of hardening mixture is proposed as follows: 1350 – 1500 kg of HMP tailings; 50 - 70 kg of binder (cement); 350 liters of mixing water. Proposed technology of ore enrichment waste storage into underground mined space and tailings with hardener admixture application allows using underground mined space at the enterprise production capacity of 1,500 thousand tons per year to store 50 – 55 % of tailings, and store the rest wastes cemented by binding material in repository. When filling the entire area of the tailing dump mirror of 10 m height with cemented tails and HMP capacity of up to 1.5 million tons per year, its operation life is extended by 50 years.
About the Authors
V. I. Lyashenko
Ukrainian Research and Design Institute for Industrial Technology
Ukraine
Ukraine
Cand. Sci. (Eng.), Head of Research Department, Senior Researcher
Zhovti Vody, Dnipropetrovsk Region
V. I. Golik
North Caucasian Institute of Mining and Metallurgy (State Technological University)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair of Mining Engineering
Vladikavkaz, Republic of North Ossetia - Alania
V. Z. Dyatchin
Institute of Entrepreneurship “Strategy”
Ukraine
Ukraine
Dr. Sci. (Eng.), Assist. Professor of the Chair of Management and Social Work
Zhovti Vody, Dnipropetrovsk Region
References
1. Yuan Y., Bolan N., Prévoteau A., Vithanage M., Biswas J.K., Ok Y.S., Wang H. Applications of biochar in redox-mediated reactions. Bioresource Technology. 2017, vol. 246, pp. 271–281.
2. Lomonosov G.G., Polonik P.I., Abdalakh Kh. Improving extraction technology with the use of pasteous filling materials. Gornyi zhurnal. 2000, no. 2, pp. 21–23. (In Russ.).
3. Chernov A.P. ed. Dobycha i pererabotka uranovikh rud v Ukraine. Monografiya [Mining and enrichment of uranium ores in Ukraine. Monograph]. Kiev: Adef–Ukraina, 2001, 238 p. (In Russ.).
4. Hu S. G., Lu X. J., Niu H. L., Jin Z. Q. Research on preparation and properties of backfilling cementation material based on blast furnace slag. Advanced Materials Research. 2011, vol. 158, pp. 189–196.
5. Lottermoser B. Mine Wastes: Characterization, Treatment and Environmental Impacts. New York: Springer, 2012, 400 p.
6. Maanju S.K., Saha K. Impact of mining industry on environmental fabric – a case study of Rajasthan State in India. Journal of Environmental Science. Toxicology and Food Technology. 2013, vol. 6, no. 2, pp. 8–13.
7. Snelling P.E., Godin L., McKinnon S.D. The role of geologic structure and stress in triggering remote seismicity in Creighton Mine, Sudbury, Canada. Int. Journal of Rock Mechanics and Mining Sciences. 2013, vol. 58, pp. 166–179.
8. Reiter K., Heidbach O. 3-D geomechanical-numerical model of the contemporary crustal stress state in the Alberta Basin (Canada). Solid Earth. 2014, no. 5, pp. 1123–1149.
9. Kayri M. Predictive abilities of Bayesian regularization and Levenberg – Marquardt algorithms in artificial neural networks: a comparative empirical study on social data. Mathematical and Computational Applications. 2016, vol. 21, no. 2, article 21020020.
10. Chowdhury S.R., Yanful E.K., Pratt A.R. Recycling of nickel smelter slag for arsenic remediation – an experimental study. Environmental Science and Pollution Research. 2014, vol. 21, no. 17, pp. 10096–10107.
11. Modaihsh A.S., Mahjoub M.O., Nadeem M.E.A., Ghoneim A.M., Al-Barakah F.N. The air quality, characterization of polycyclic aromatic hydrocarbon, organic carbon, and diurnal variation of particulate matter over Riyadh City. Journal of Environmental Protection. 2016, no. 7, pp. 1198–1209.
12. Ke X., Zhou X., Wang X., Wang T., Hou H., Zhou M. Effect of tailings fineness on the pore structure development of cemented paste backfill. Construction and Building Materials. 2016, vol. 126, pp. 345–350.
13. Beiyuan J., Awad Y.M., Beckers F., Tsang D.C., Ok Y.S., Rinklebe J. Mobility and phytoavailability of As and Pb in a contaminated soil using pine sawdust biochar under systematic change of redox conditions. Chemosphere. 2017, vol. 178, pp. 110–118.
14. Deng D.Q., Liu L., Yao Z.L., Song K.I., Lao D.Z. A practice of ultra-fine tailings disposal as filling material in a gold mine. Journal of Environmental Management. 2017, vol. 196, pp. 100–109.
15. Vrancken C., Longhurst P.J., Wagland S.T. Critical review of realtime methods for solid waste characterization: Informing material recovery and fuel production. Waste Management. 2017, vol. 61, pp. 40–57.
16. Cheng Y., Jiang H., Zhang X., Cui J., Song C., Li X. Effects of coal rank on physicochemical properties of coal and on methane adsorption. Int. Journal of Coal Science & Technology. 2017, vol. 4, no. 2, pp. 129–146.
17. Paul A., Murthy V.M.S.R., Prakash A.K. Estimation of rock load in development workings of underground coal mines. A modified RMR approach. Current Science. 2018, vol. 114, no. 10, pp. 2167–2174.
18. Trubetskoi K.N., Kaplunov D.R., Ryl’nikova M.V. Problems and prospects for development of resource-saving and resource-reproducing geotechnologies for integrated development of the Earth’s deep interior. Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh. 2012, no. 4, pp. 116–124. (In Russ.).
19. Komashchenko V.I. Development of explosive technology reducing environmental impact. Izv. Tul’skogo gosudarstvennogo universiteta. Nauki o Zemle. 2016, no. 1, pp. 34–43 (In Russ.).
20. Lyashenko V.I., Golik V.I. Scientific, design and technological support for development of uranium production. Achievements and tasks. Gornyi informatsionno–analiticheskii byulleten’. 2017, no. 7, pp. 137–152. (In Russ.).
21. Stroitel’stvo khvostokhranilishcha na medno-molibdenovom rudnike Los-Pelambres v Chili [Construction of tailing dump at the Los Pelambres Copper-Molybdenum Mine in Chile]. Available at URL: http//mineral.ru/News/34680.html (reference date: 06.11.2019). (In Russ.).
22. Lyashenko V.I. Development of scientific and methodological foundations for evaluating effectiveness of environmental technologies and technical equipment in extraction and processing of ore resources. Bezopasnost’ truda v promyshlennosti. 2017, no. 9, pp. 30–36. (In Russ.).
23. Lyashenko V.I., Dyatchin V.Z., Lisovoi I.A. Improving safety of mining through effective waste management of mining and processing of ore resources. Bezopasnost’ truda v promyshlennosti. 2017, no. 11, pp. 16–22. (In Russ.).
24. Lyashenko V.I., Chekushina T.V., Lisovoi I.A., Lisovaya T.S. Environmental safety in the zone of influence of uranium production. Ekologiya i promyshlennost’ Rossii. 2019, vol. 23, no. 3, pp. 60–65. (In Russ.).
25. Kaplunov D.R., Radchenko D.N. Design philosophy and choice of technologies for sustainable development of underground mines. Gornyi Zhurnal. 2017, no. 11, pp. 52–59. (In Russ.).
26. Epov M.I., Yurkevich N.V., Bortnikova S.B., Karin Yu.G., Saeva O.P. Analysis of mine waste by geocheimical and geophysical methods (a case study of the mine tailing dump of the Salair oreprocessing plant). Russian Geology and Geophysics. 2017, vol. 58, no. 12, pp. 1543–1552.
27. Krupskaya L.T., Golubev D.A., Rastanina N.K., Filatova M.Yu. Reclamation of tailings storage surface at a closed mine in the Primorsky Krai by bio remediation. Mining Informational and Analytical Bulletin. 2019, no. 9, pp. 138–148. (In Russ.).
28. Volkov E.P., Anushenkov A.N. Development of technology for filling mine workings with hardening mixtures based on enrichment tailings. Izv. vuz. Gornyi zhurnal. 2019, no. 7, pp. 5–13. (In Russ.).
29. Lyashenko V., Topolnij F., Dyatchin V. Development of technologies and technical means for storage of waste processing of ore raw materials in the tailings dams. Technology Audit and Production Reserves. 2019, vol. 3, no. 49, pp. 33–40.
30. Lyashenko V.I., Golik V.I. Combined geotechnologies for preconcentration of ore reserves by metals leaching from ores. Marksheideriya i nedropol’zovanie. 2020, no. 2 (106), pp. 16–23. (In Russ.).
Review
For citations:
Lyashenko V.I., Golik V.I., Dyatchin V.Z. Increasing environmental safety by reducing technogenic load in mining regions. Izvestiya. Ferrous Metallurgy. 2020;63(7):529-538. (In Russ.) https://doi.org/10.17073/0368-0797-2020-7-529-538
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