Article name Sorption Technology for the Treatment of Waste and Circulating Waters of Ash Dumps
Authors Razmakhnin K.. ,
Khatkova A.. ,
Shumilova L.. ,
Nomokonova T.. ,
Bibliographic description Razmakhnin K. K., Khatkova A. N., Shumilova L. V., Nomokonova T. S. Sorption technology for the treatment of waste and circulating waters of ash dumps // Transbaikal State University Journal. 2023. Vol. 29, no. 3. P. 35–44. DOI: 10.2109/2227-9245-2023-29-3-35-44.
Category Subsoil Use, Mining Sciences
DOI 622.7/ 502/504
DOI 10.2109/2227-9245-2023-29-3-35-44
Article type Original article
Annotation The purpose of the research is to assess the possibility of effective treatment of waste and recycled water from the ash dump by sorption methods. The objectives of the study include the following: development of a scheme of a sorption plant with the sequential introduction of zeolite for the treatment of waste and recycled water from hydraulic ash dumps; development of a scheme for a continuous sorption plant using a zeolite sorbent for the treatment of waste and recycled water from hydraulic ash dumps; determination of the efficiency of waste and recycled water treatment through the use of sorption methods based on the use of natural zeolites. The results of studies on the possibility of using natural zeolites of the Shivyrtuiskoye deposit for the treatment of waste and recycled water from the Chita CHP-1 hydraulic ash dump from polluting components that have a negative impact on the environment are presented. The subject of the research is the technologies and materials that ensure the treatment of waste and circulating waters of the hydraulic ash dump. It has been revealed that the use of natural zeolites of the Shivyrtuiskoye deposit for the treatment of waste and recycled water from the ash dump is reasonable and effective. At the same time, the degree of purification from arsenic was 93.3 %, from fluorine – 97 %, lead – 87 %, manganese ‒ 99.7 %. A scheme of a sorption plant with sequential introduction of zeolite has been developed. A scheme of a continuous sorption plant based on the use of natural zeolites as a sorbent has been developed. Experimental studies carried out in dynamic mode on the extraction of arsenic from waste and circulating waters of the hydraulic ash dump showed that natural zeolites have the necessary characteristics that allow the adsorbent to be used in industrial conditions for a long time while maintaining sufficiently high sorption capacities. It has been established that natural zeolites are an effective material for the purification of waste and recycled water from arsenic. The advantage of using zeolites in the processes of ion-exchange and sorption purification of waste and circulating water is the possibility of implementing ion-exchange and sorption processes in a dynamic mode, high sorption selectivity and ease of instrumentation.
Key words ash and slag waste, hydraulic ash dump, Chita CHPP-1, waste water, recycled water, pollutants, purification, sorption, natural zeolites, dynamic capacity
Article information
References 1. Batukhtin A. G., Khatkova A. N., Kobylkin M. V., Rikker Yu. O. Problems of suppression of gas emissions from coal-fired TPPs: a monograph. Chita: Transbaikal State University, 2021. (In Rus.). 2. Bespolitov D. V., Konovalova N. A., Dabizha O. N., Pankov P. P., Rush E. A. Influence of mechanoactivation of fly ash on the strength of ground concretes based on production waste. Ecology and Industry of Russia. Siberian Branch of the Russian Academy of Sciences. 2021. DOI: 10.18412/1816-0395-2021-11-36-41. (In Rus.). 3. Vlasova V. V., Artemova O. S., Fomina E. Yu. Determination of directions for the efficient use of TPP waste. Ecology and Industry of Russia, vol. 21, no. 11, pp. 36–41, 2017. DOI: 10.18412/1816-0395-2017-11- 36-41. (In Rus.). 4. Kuklina G. L., Myazin V. P., Sverkunova T. P., Metelev V. A. Complex geological and technological reassessment of the quality of fossil coals of Eastern Transbaikalia and prospects for their multipurpose use, no. 2, pp. 321–330, 2004. (In Rus.). 5. Myazin V. P., Myazina V. I., Razmakhnin K. K., Shumilova L. V. Studies of technogenic formations of the Transbaikal fuel and energy complex as complex geosystems and unconventional sources of mineral raw materials. Kulagin readings: technique and technologies of production processes: in 3 parts. Chita: Transbaikal State University, 2017. (In Rus.). 6. Razmakhnin K. K. Justification and development of technologies for enrichment and modification of zeolite-containing rocks of the Eastern Transbaikalia. Physico-technical problems of mineral development, no. 3, pp. 148–157, 2021. (In Rus.). 7. Shavanov N. D., Konovalova N. A., Pankov P. P., Rush E. A. Studying the composition and properties of ash and slag mixtures for the purpose of their utilization in the construction industry. Actual problems of technosphere safety. Ulyanovsk: Ulyanovsk State Technical University, 2022. (In Rus.). 8. Abit K. E., Carlsen L., Nurzhanova A. A., Nauryzbaev M. K. Activated carbons from miscanthus straw for cleaning water bodies in Kazakhstan. Eurasian ChemicoTechnological Journal, no. 21, pp. 259–267, 2019. DOI: 10.18321/ectj867. (In Eng.). 9. Barabanshchikov Y., Fedorenko I., Kostyrya S. Usanova K., Cold-Bonded Fly Ash Lightweight Aggregate Concretes with Low Thermal Transmittance. Review. Advances in Intelligent Systems and Computing, no. 983, pp. 858–866, 2019. DOI: 10.1007/978-3-030-19868-8_84. (In Eng.). 10. Dave J. M. Disposal of fly ash ‒ an environmental problem // International Journal of Environmental Studies, vol. 26, iss. 3, pp. 191–215, 1986. DOI: 10.1080/00207238608710257. (In Eng.). 11. Konovalova N. A., Pankov P. P., Petukhov V., Fediuk R., Amran Mugahed, Vatin N. I. Structural formation of soil concretes based on loam and fly ash, modified with a stabilizing polymer additive, Materials, vol. 15, iss. 14, pp. 48–93, 2022. DOI: 10.3390/ma15144893. (In Eng.). 12. Ling Y., Wang K., Li W., Shi G., Lu P., Effect of slag on the mechanical properties and bond strength of fly ash ‒ based engineered geopolymer composites, Compos, no. 164, pp. 747–757, 2019. DOI:10.1016/j. compositesb.2019.01.092. (In Eng.). 13. Marya Raji, Nadia Zari, Abou el Kacem Qaiss, Rachid Bouhfid. Chemical preparation and functionalization techniques of graphene and graphene oxide. Functionalized graphene nanocomposites and their derivatives. 2019. DOI: 10.1016/b978-0-12-814548-7.00001-5. (In Eng.). 14. Papurello D., Gandiglio M., Kafashan J., Lanzini A. Biogas purification: a comparison of adsorption performance in D4 siloxane removal between commercial activated carbons and waste wood-derived char using isotherm equations. Processes, vol. 7, no. 10, pp. 774–784, 2019. DOI: 10.3390/pr7100774. (In Eng.). 15. Satpathy H. P., Patel S. K., Nayak A. N. Development of sustainable lightweight concrete using fly ash cenosphere and sintered fly ash aggregate, Constr. Build. Mater, no. 202, pp. 636–655, 2019. DOI:10.1016/j. conbuildmat.2019.01.034. (In Eng.). 16. Sözer H., Sözen H. Waste capacity and its environmental impact of a residential district during its life cycle. Energy Reports, vol. 6, pp. 286–296, 2020. DOI: 10.1016/j.egyr.2020.01.008. (In Eng.). 17. Sharonova O. M., Yumashev V. V., Solovyov L. A., Anshits A. G. The fine high-calcium fly ash as the basis of composite cementing material. Mag. Civ. Eng, no. 91, pp. 60–72, 2019. DOI: 10.18720/MCE.91.6. (In Eng.).
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