Wastes from coal mining and processing. Methodological approaches to the assessment of their ecological safety and directions for use. Part 3. Development and validation of test procedure to determine macroand micro-elements contents in coal mining, processing and combustion wastes

The regulatory framework for the assessment of the environmental impact of coal mining, processing and combustion waste in Russia are the Sanitary Regulations on Classification of Toxic Production and Consumption Waste Hazard (SP 2.1.7.1386-03) using the Tentative Water Migration Index (TWMI) as a preliminary estimate. There is no procedure to determine water-soluble elements in coal mining and processing waste in Russia, and the current coal mining, processing and combustion waste tests offer subjective estimation of hazards, which makes it impossible to compare the results of the analysis with the ones of test procedures used overseas. The experimental studies determine the optimized test conditions for water-soluble macroand micro-elements contents in coal mining, processing and combustion wastes. It is found that the best method is extracting water-soluble matters at a solid to liquid ratio of 1:50 in single cycle at room temperature and with constant stirring at a uniform rate for 3 hours. On the basis of the experimental studies of representative coals, as well as coal mining, processing and combustion waste samples, the national standard (GOST R) has been developed. This standard specifies the method for determining the yield of water-soluble matters from lignite, bituminous coal, anthracite, their mining and processing wastes, as well as from solid waste after combustion of coal and associated products (solid mineral fuel). The macroand microelement contents of water-soluble matters are estimated using the standard methods set for the analysis of natural, effluent and treated wastewaters.

Keywords: waste, coal mining and processing, fly ash, slag, macroand micro-elements, environmental impact, water migration potential, water-soluble forms of elements, analytical methods.
For citation:

Gushchina T. O., Silyutin S.A., Sokolovskaya E. E. Epshtein S.A. Wastes from coal mining and processing. Methodological approaches to the assessment of their ecological safety and directions for use. Part 3. Development and validation of test procedure to determine macroand micro-elements contents in coal mining, processing and combustion wastes. MIAB. Mining Inf. Anal. Bull. 2020;(8):145-162. [In Russ]. DOI: 10.25018/0236-1493-2020-8-0-145-162.

Acknowledgements:

The study was supported by the Russian Foundation for Basic Research, Grant No. 19-35-90117.

Issue number: 8
Year: 2020
Page number: 145-162
ISBN: 0236-1493
UDK: 658.567.1:622.33:504.064
DOI: 10.25018/0236-1493-2020-8-0-145-162
Article receipt date: 26.05.2020
Date of review receipt: 26.06.2020
Date of the editorial board′s decision on the article′s publishing: 20.07.2020
About authors:

T.O. Gushchina1, Graduate Student, Engineer, e-mail: gushchina.t.o@gmail.com,
S.A. Silyutin, Cand. Sci. (Eng.), JSC Siberian Coal and Energy Company (SUEK), Moscow, Russia, e-mail: silutinsa@suek.ru,
E.E. Sokolovskaya1, Leading Engineer, e-mail: sesokolovska@mail.ru,
S.A. Epshtein, Dr. Sci. (Eng.), Head of Laboratory, e-mail: apshtein@yandex.ru,
1 Scientific and Educational Testing Laboratory «Physics and Chemistry of Coals», National University of Science and Technology «MISiS», 119049, Moscow, Russia.

For contacts:

S.A. Epshtein, e-mail: apshtein@yandex.ru.

Bibliography:

1. Silyutin S. A., Epshtein S. A. Wastes from coal mining and processing. Methodological approaches to the assessment of their ecological safety and directions for use. Part 1. Characterization of solid wastes from coal mining and processing in foreign countries. MIAB. Mining Inf. Anal. Bull. 2020, no 4, pp. 5—19. [In Russ]. DOI: 10.25018/0236-1493-2020-4-0-5-19.

2. Finkelman R. B., Palmer C. A., Peipei Wangc Quantification of the modes of occurrence of 42 elements in coal. International Journal of Coal Geology. 2018. Vol. 185. DOI: 10.1016/j. coal.2017.09.005.

3. Shpirt M. Ya., Artem'ev V. B., Silyutin S. A. Ispol'zovanie tverdykh otkhodov dobychi i pererabotki ugley [Use of solid waste of coal mining and conversion], Moscow, Gornoe delo OOO «Kimmeriyskiy tsentr», 2013, 432 p.

4. Silyutin S. A., Epshtein S. A., Gushchina T. O. Wastes from coal mining and processing. Methodological approaches to the assessment of their ecological safety and directions for use. Part 2. Methods for the determination of mobile forms of macroand microelements in the wastes of coal mining, processing and combustion. MIAB. Mining Inf. Anal. Bull. 2020, no 5, pp. 5—16. [In Russ]. DOI: 10.25018/0236-1493-2020-5-0-5-16.

5. Zhuravleva N. V., Potokina R. R., Ismagilov Z. R., Nagaytseva N. V. Distribution of macroand micro-elements in coal washing waste. Khimiya v interesakh ustoychivogo razvitiya. 2016. vol. 24, no 6, pp. 761—767.

6. Zhuravleva N. V., Ivanykina O. V., Ismagilov Z. R. Toxic elements in ash and slag waste of the fuel-and-power industry plants in the Kemerovo Region. Khimiya v interesakh ustoychivogo razvitiya. 2013, vol. 21, pp. 479—486.

7. Tiwari M. K., Bajpaia S., Dewangan U. K., Tamrakar R. K. Suitability of leaching test methods for fly ash and slag. A review. Journal of Radiation Research and Applied Sciences. 2015. Vol. 8. No 4. Pp. 523—537. DOI: 10.1016/j.coal.2011.10.006.

8. Tessier A., Campbell P. G. C., Bisson M. Sequential extraction procedure for the speciation of particulate trace metals. Analytical Chemistry, 1979. Vol. 51. No 7. Pp. 844—851. DOI: 10.1021/ac50043a017.

9. Gupta N., Gedam V. V., Moghe C., Labhasetwar P. Comparative assessment of batch and column leaching studies for heavy metals release from coal fly ash bricks and clay bricks. Environmental Technology & Innovation. 2019. Vol. 16. Article 100461. DOI: 10.1016/j. eti.2019.100461.

10. Hesbach P., Burgers C., Greiner A., Hasett D. J., Heebink L. V., Beck M., Eick M., Daniels W. L. Inter-laboratory comparison of leaching methods. 2005 World of coal ash, Lexington. April 11—15, 2005. http://www.flyash.info/2005/69hes.pdf.

11. Lubna A.A. Chemical characterization and mobility of metal species in fly ash—water system. Water Science. 2015. Vol. 29. Pp. 109—122. DOI: 10.1016/j.wsj.2015.10.001.

12. Fomenko N. A., Nikitina M. I., Gushchina T. O., Zhuravlev A. A., Sozonova T. S. Changing the composition of water-soluble substances from ash and slag waste in the presence of brown coal. MIAB. Mining Inf. Anal. Bull. 2018, Spetial Edition 26, pp. 3—14. [In Russ]. DOI: 10.25018/0236-1493-2018-6-26-3-14.

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