2411-3336 2541-9404 Записки Горного института Journal of Mining Institute Санкт-Петербургский горный университет императрицы Екатерины ΙΙ Empress Catherine II Saint Petersburg Mining University 10.31897/PMI.2023.28 SEWNAI pmi-15964 https://pmi.spmi.ru/pmi/article/view/15964 Геотехнология и инженерная геология Geotechnical Engineering and Engineering Geology Sorption purification of acid storage facility water from iron and titanium on organic polymeric materials Сорбционная очистка вод кислотонакопителя от железа и титана на органических полимерных материалах Cheremisina Olga V. Черемисина О. В. Cheremisina Olga V. ovcheremisina@yandex.ru 0000-0002-3045-3313 Санкт-Петербургский горный университет (Россия) Saint Petersburg Mining University (Russia) Ponomareva Maria A. Пономарева М. А. Ponomareva Maria A. mashulka-05@mail.ru 0000-0002-7790-8178 Санкт-Петербургский горный университет (Россия) Saint Petersburg Mining University (Russia) Molotilova Anastasiya Yu. Молотилова А. Ю. Molotilova Anastasiya Yu. molotilova.nastya@gmail.com 0000-0002-9084-5386 Санкт-Петербургский горный университет (Россия) Saint Petersburg Mining University (Russia) Mashukova Yuliya A. Машукова Ю. А. Mashukova Yuliya A. Ponomareva_MA@pers.spmi.ru 0000-0002-5126-2903 Санкт-Петербургский горный университет (Россия) Saint Petersburg Mining University (Russia) Soloviev Maxim A. Соловьев М. А. Soloviev Maxim A. s205057@stud.spmi.ru 0000-0002-3640-5320 Санкт-Петербургский горный университет (Россия) Saint Petersburg Mining University (Russia) 27 04 2023 2023 264 971 980 23 10 2022 13 02 2023 25 12 2023 © Olga V. Cheremisina, Maria A. Ponomareva, Anastasiya Yu. Molotilova, Yuliya A. Mashukova, Maxim A. Soloviev 2023 О. В. Черемисина, М. А. Пономарева, А. Ю. Молотилова, Ю. А. Машукова, М. А. Соловьев Olga V. Cheremisina, Maria A. Ponomareva, Anastasiya Yu. Molotilova, Yuliya A. Mashukova, Maxim A. Soloviev CC BY 4.0 https://pmi.spmi.ru/pmi/article/view/15964

Получение и производство металлов из природных минерально-сырьевых источников приводит к образованию большого количества жидких, твердых и газообразных отходов разных классов опасности, оказывающих негативное влияние на окружающую среду. В производстве диоксида титана из ильменитового концентрата образуется гидролизная серная кислота, в состав которой входят различные катионы металлов, их основную часть составляют катионы железа (III) и титана (IV). Отходы гидролизной кислоты направляют на хранение в кислотонакопители, которые оказывают высокую экологическую нагрузку на окружающую среду. В статье описана технология ионообменной очистки сточных вод кислотонакопителя от катионов железа (III) и титана (IV), образующих с сульфат-ионами и компонентами органических отходов в кислых средах соединения, которые подвергаются диспергации и пылеуносу при испарении водного техногенного объекта, особенно в летний сезон. Изучен процесс сорбции комплексных катионов железа (III) [FeSO4]+ и катионов титанила TiO2+ из сернокислых растворов на катионитах КУ-2-8, Puromet MTS9580 и Puromet MTS9560. Получены изотермы сорбции как индивидуальных катионов [FeSO4]+ и TiO2+, так и в совместном присутствии. Рассчитаны значения констант равновесия при температуре 298 K и изменения энергии Гиббса. Определены емкостные характеристики сорбента для отдельно взятых катионов и в совместном присутствии.

Obtaining and production of metals from natural raw materials causes a large amount of liquid, solid, and gaseous wastes of various hazard classes that have a negative impact on the environment. In the production of titanium dioxide from ilmenite concentrate, hydrolytic sulphuric acid is formed, which includes various metal cations, their main part is iron (III) and titanium (IV) cations. Hydrolytic acid waste is sent to acid storage facilities, which have a high environmental load. The article describes the technology of ion exchange wastewater treatment of acid storage facility from iron (III) and titanium (IV) cations, which form compounds with sulphate ions and components of organic waste in acidic environments. These compounds are subjected to dispersion and dust loss during the evaporation of a water technogenic facility, especially in summer season. Sorption of complex iron (III) cations [FeSO4]+ and titanyl cations TiO2+ from sulphuric acid solutions on cation exchange resins KU-2-8, Puromet MTS9580, and Puromet MTS9560 was studied. Sorption isotherms were obtained both for individual [FeSO4]+ and TiO2+ cations and in the joint presence. The values of the equilibrium constants at a temperature of 298 K and the changes in the Gibbs energy are estimated. The capacitive characteristics of the sorbent were determined for individual cations and in the joint presence.

 Ключевые слова накопитель сточных вод гидролизная серная кислота сорбция очистка железо (III) титан (IV) титанил ионный обмен катиониты константа равновесия энергия Гиббса экология Keywords waste pond hydrolytic sulphuric acid sorption purification iron (III) titanium (IV) titanyl ion exchange cation exchange resins equilibrium constant Gibbs energy environment Чукаева М.А., Матвеева В.А., Сверчков И.П. Комплексная переработка высокоуглеродистых золошлаковых отходов // Записки Горного института. 2022. Т. 253. С. 97-104. DOI: 10.31897/PMI.2022.5 Chukaeva M.A., Matveeva V.A., Sverchkov I.P. Complex processing of high-carbon ash and slag waste. Journal of Mining Institute. 2022. Vol. 253, p. 97-104. DOI 10.31897/PMI.2022.5 Kudinova A.A., Poltoratckaya M.E., Gabdulkhakov R.R. et al. Parameters influence establishment of the petroleum coke genesis on the structure and properties of a highly porous carbon material obtained by activation of KOH // Journal of Porous Materials. 2022. Vol. 25. 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