Study of the Composition and Structure of Microspheres of Fly Ashes of the Yuzhno-Sakhalinsk GRES Power Plant and Their Sorption Properties for the Extraction of Petroleum Products from Contaminated Water
N. V. ZHURAVLEVA1, R. R. POTOKINA1, Z. R. ISMAGILOV2,3,4, N. V. SHIKINA5 and G. V. BOLDYREV5
1PC “West Siberian Testing Centre”,
Ul. Ordzhonikidze, 9, Novokuznetsk 654006 (Russia)
E-mail: main@zsic.ru
2Institute of Coal Chemistry and Material Science, Siberian Branch of the Russian Academy of Sciences,
Ul Vesennyaya, 28, Kemerovo 650000 (Russia)
E-mail: IsmagilovZR@iccms.sbras.ru
3Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
Е-mail: zri@catalysis.ru
4Gorbachev Kuzbass State Technological University
Ul. Vesennyaya 28, Kemerovo 650000 (Russia)
E-mail: IsmagilovZR@iccms.sbras.ru
5Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
E-mail: geboldyrev@yandex.ru
Keywords: fly ash, microsphere, sorbent, water purification, purification from petroleum products
Pages: 253–261
Abstract
Physicochemical properties of microspheres of fly ashes of the Yuzhno-Sakhalinsk GRES Power Plant were studied. The phase composition of the samples of the microspheres is represented by a mixture of phases of mullite Al6Si2O13, quartz SiO2 and amorphous glass phase with a predominance of the phase of mullite. The possibility of the use of this material as a sorbent was considered. The maximal capacity on petroleum products that reaches 100 mass % was determined. Experiments on the extraction of petroleum products from model contaminated water were performed. The degree of water purification from the surface layer of petroleum products is 99.99 mass %. The effect of the high temperature treatment of the microsphere on the sorption capacity on petroleum products was studied. It was shown that the optimal temperature of the thermal treatment was equal to 250 °С and after calcination at the temperatures of 400 and 600 °С, the material lost the ability to collect the petroleum film from the water surface.
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