ASH AND SLAG WASTE OF THERMAL POWER PLANTS AS A PROMISING RAW MATERIAL OF THE PRESENT
DOI:
https://doi.org/10.15421/jchemtech.v31i3.286130Keywords:
power plants, waste, ash, slag, separation, extraction, secondary raw materials, acid, alkaline, fluoride processing.Abstract
This work considers the possibilities of complex processing of ash and slag waste of thermal power plants. The work contains technological data of acid, alkaline and fluoride processing of ash slag. The chemical composition of ash and slag waste of the Dnipropetrovsk region was established. It was established that when using acid technology of processing with mineral acids, preliminary magnetic separation is a mandatory condition. Leaching of the obtained magnetic and non-magnetic fractions is carried out at 105°C for 2 hours. At the same time, a more complete extraction is observed from the magnetic fraction. In addition, it is possible to remove liquid and scattered elements. It has been established that a wide range of sodium-based alkaline compounds can be used in alkaline processing technology. At the same time, scandium, gallium and alumina can be extracted. The process temperature is 50°C for 2 hours. It was established that for more complete processing of waste, the sintering process is carried out at 1400-1500°C. The residue from alkaline processing is used in construction. It has been established that when using the fluoride technology of ash slag processing, aluminosilicate compounds can be processed more fully due to the extraction of silicon, which makes it possible to gradually obtain aluminum and iron from the waste.
References
Khlopytskyi, A.A., Makarchenko, N.P. (2013). Prospects of development of processing solid slag wastes from thermal power plants in to finished products. Odes’kyi Politechnichnyi Universytet. Pratsi, 3(42), 91–93. http://pratsi.opu.ua/articles/show/1004
Myazin, V.P., Shumilova, L.V., Razmakhnin, K. K., Bogidaev, S. A. (2018). Integrated Processing of Ash and Slag from Thermal Power Plants in Eastern Transbaikalia. J. Min. Sci, 54, 845–857. https://doi.org/10.1134/S1062739118054975
Нlopitskiy, A.A., Savenkov, A.S., Picenko, I.V. (2016). Ashes and slag waste as secondary raw materials in producing nanomaterials. NANOTECHNOLOGY and NANOMATERIALS NANO-2016, 4.
Kierczak, J., Chudy, K. (2014). Mineralogical, Chemical, and Leaching Characteristics of Coal Combustion Bottom Ash from a Power Plant Located in Northern Poland. Pol. J. Environ. Stud., 23(5), 1627–1635.
Ryabov, Y.V., Delitsyn, L.M., Ezhova, N.N., Sudareva, S. V. (2019). Methods for Beneficiation of Ash and Slag Waste from Coal-Fired Thermal Power Plants and Ways for Their Commercial Use (a Review). Therm. Eng. 66, 149–168. https://doi.org/10.1134/S0040601519030054
Guojing, W., Min, G., Xiaohui, F., Zhiyun, Ji., Xuling, Ch., Zhuangzhuang, W. (2021). Co-disposal of municipal solid waste incineration fly ash and bottom slag: A novel method of low temperature melting treatment. Journal of Hazardous Materials, Volume 408, https://doi.org/10.1016/j.jhazmat.2020.124438
Behera, S.K., Mishra, D.P., Prashant, S.K., Mishra, S.K., Mandal, C.N., Ghosh, R.K., Phanil, K.M. (2021). Utilization of mill tailings, fly ash and slag as mine paste backfill material: Review and future perspective, Construction and Building Materials, 309. https://doi.org/10.1016/j.conbuildmat.2021.125120
Yatsenko, E.A., Goltsman, B.M., Trofimov, S.V., Lazorenko, G.I. (2022). Processing of Ash and Slag Waste from Coal Fuel Combustion at CHPPs in the Arctic Zone of Russia with Obtaining Porous Geopolymer Materials. Therm. Eng., 69, 615–623. https://doi.org/10.1134/S0040601522070102
Shchukina, L.P., Galushka, Ya.O., Khlopytskyi, A.A., Savenkov, A.S. (2020). Prospects of the application of coal ash materials to produce construction heat-insulation ceramics. Voprosy khimii i khimicheskoi tekhnologii., 4, 215–224, DOI: 10.32434/0321-4095-2020-130-3-215-224
Tong, Zh., Siqi, Zh., Huifen, Ya., Wen, Ni., Jia, Li., Ge, Zh., Guoxiang, T., Xuan, Li., Song, G., Yichen, Zh., Zeping, Wu. (2023). Leaching and hydrating mechanisms, economic benefits of backfill materials by using coal fly ash–slag-based binder for environmentally sustainable production. Construction and Building Materials, 397. https://doi.org/10.1016/j.conbuildmat.2023.132360
Khlopytskyi, A.A. (2015). Study of Complex Recovery of Solid Slag Waste from Thermal Power Plants in the Target Components. Chemical and Materials Engineering., 3(1), 1–5. doi: 10.13189/cme.2015.030101
Shemi, A., Ndlovu, S., Sibanda, V., Van Dyk, LD. (2014). Extraction of aluminium from coal fly ash: Identification and optimization of influential factors using statistical design of experiments. International Journal of Mineral Processing, 127, 10–15. https://doi.org/10.1016/j.minpro.2013.12.003
Cherkasova, T.G., Cherkasova, E.V., Tikhomirova, A.V., Gilyazidinova, N.V., Klyuev, R.V., Martyushev, N.V., Karlina, A.I., Skiba V.Yu. (2022). Study of Matrix and Rare Elements in Ash and Slag Waste of a Thermal Power Plant Concerning the Possibility of their Extraction. Metallurgist 65, 1324–1330. https://doi.org/10.1007/s11015-022-01278-2
Frolova, L.A., Pivovarov, A.A., Butyrina, T.E., Tsepich, E.G. (2015). Purification of wastewaters, containing chromium, by a sorbent based on blast furnace slag. J. Water Chem. Technol., 4(37), 185–190. doi:10.3103/S1063455X15040062
Fan, M., Brown, R., Wheelock, Th., Cooper, A., Nomura, M., Zhuang, Y. (2005). Production of a complex coagulant from fly ash. Chemical Engineering Journal, 106, 269–277. https://doi.org/10.1016/j.cej.2004.12.044
Khlopytskyi, A., Savenkov, А., Bliznjuk, О., Skiba, М., Vorobiova, V., Masalitina, N. (2022). Leaching of FeO and CaO by nitric acid from ash-slag wastes of thermal power plants. Voprosy khimii i khimicheskoi tekhnologii., 1, 95–99. DOI: 10.32434/0321-4095-2022-140-1-95-99
Bliznjuk, O.N., Masalitina, N.Yu., Savenkov, A.S., Suvorin, A.V., Khlopytskyi, A.A. (2019). Synthesis of a multioxide catalyst for the oxidation of ammonia to nitrogen(II) oxide. Voprosy khimii i khimicheskoi tekhnologii., 3, 98–118. doi: 10.32434/0321-4095-2019-124-3-98-108
Yatsenko, E.A., Goltsman, B.M., Parshukov, V.I., (2022). Analysis of suitability of TPP ash-slag waste as materials for hydrogen fuel storage. International Journal of Hydrogen Energy, 47(6), 3906–3917. https://doi.org/10.1016/j.ijhydene.2021.10.272
Snegirev, V.A., Sabirova, T.M. (2021). State-of-the-Art and Problems of Bioleaching of Metals from Ash-and-Slag, Wastes. Metallurgist 65, 794–807. https://doi.org/10.1007/s11015-021-01217-7
Khlopytskyi, O., Vereshchak, V., Nosov, K., Fedotovskyi, A., Makarchenko, N. (2013) [Alkaline method of opening zircon]. Chemical industry of Ukraine., 3, 43–48. (in Ukrainian).
Dosmukhamedov, N.K., Zholdasbay, E.E. (2022).Technology of Ash and Slag Waste Processing by Сhloridizing Roasting. Metallurgist, 66, 180–189. https://doi.org/10.1007/s11015-022-01315-0
Tripathy, A., Behera, B., Aishvarya, V., Sheik, A. (2019). Sodium fluoride assisted acid leaching of coal fly ash for the extraction of alumina. Minerals Engineering, 131, 140–145. https://doi.org/10.1016/j.mineng.2018.10.019
Zbigniew, G. (2019). Fly ash and slag. Cement and Concrete Research, 124. https://doi.org/10.1016/j.cemconres.2019.105826
Suvorova, O.V., Makarov, D.V. (2019). Foam Glass and Foam Materials Based on Ash-Slag Wastes from Thermal Power Plants (Review). Glass Ceram 76, 188–193. https://doi.org/10.1007/s10717-019-00162-x
Frolova, L.A., Pivovarov, A.A. (2016). Obtaining of brown pigments from concentrated waste water containing nickel. Chem.Chem.Technol., 10(2). 209–211. doi:10.23939/chcht10.02.209
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