Abstract
The formation of calcium silicates under ordinary conditions (20°C) and under the conditions of autoclave treatment of the reaction mixture (220°C) was investigated. The composition and morphology of synthetic calcium silicates were studied, and so was their capacity to sorb the microorganisms Escherichia coli and Bacillus subtilis. It was determined that the sorption capacity of the studied samples is highest (to 79.4%) in the case of the sorption of the bacteria Escherichia coli. The efficiency of the sorption of Bacillus subtilis is lower (to 45.5%) than that of Escherichia coli. The kinetic parameters of the studied process were found using the equation of the kinetics of topochemical reactions. It was shown that the experimental results of studying the kinetics differ with only minimum deviations from the values calculated from the proposed equation throughout the studied time range. The obtained results are of certain scientific and practical interest in developing promising environmentally safe materials for microbiological treatment of aqueous media.
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Funding
This work was supported by a state assignment for the Institute of Chemistry, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia (theme no. 0265-2019-0002) and the Scientific Council for Physical Chemistry of the Russian Academy of Sciences (Adsorption Phenomena section) (subject no. 21-03-460-14).
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This paper was published further to the Sixth Interdisciplinary Scientific Forum with the International Participation “Novel Materials and Promising Technology,” Moscow, November 23–26, 2020. https://n-materials.ru.
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Yarusova, S.B., Somova, S.N., Kharchenko, U.V. et al. Effect of the Conditions of the Synthesis of Calcium Silicates on the Kinetics of Microbiological Treatment of Aqueous Media. Russ. J. Inorg. Chem. 66, 1135–1140 (2021). https://doi.org/10.1134/S0036023621080313
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DOI: https://doi.org/10.1134/S0036023621080313