Influence of precoat filtration and sorption on the mass-transfer of silicates through reverse osmotic membranes. I. The process model

  • Vladimir G. Migol deputy chief power of the LLC "Novo-Urengoysky Gazo-Khimichesky Kompleks", Ltd. at the "Gazprom" Company, the City of Novy Urengoy, e-mail: v.migol@nghk.ru
  • Ruslan Kh. Khamizov Dr.Sci (Chem), head of the Laboratory of sorption methods, GEOKhI RAS, Moskow, e-mail: khamiz@geokhi.ru
  • Afrasiab A. Askerniya Candidate of Technical Sciences, Leading researcher of the Scientific-Research Institute of Municipal Water Supply and Water Treatment (JSC NIIKVOV), Moscow, e-mail: vodkommun@centro.ru
  • Vladimir M. Korabelnikov Candidate of Technical Sciences, head of the laboratory of the Scientific-Research Institute of Municipal Water Supply and Water Treatment (JSC NIIKVOV), Moscow
Keywords: precoat filtration, sorption, membrane transport, colloidal silica.

Abstract

The experimental results on reverse-osmotic processing silica-containing natural waters are
generalized in the paper. A physicochemical model of colloidal silica transporting through the membranes
is proposed in terms of precoat filtration and sorption-desorption processes for silica during the passage of
the solution through the corresponding filtration layers. In the presence of mobile phase equilibrium, the
precoat filtration leads to increasing concentrations of dissolved silicates supplied to the membrane of the
sections of the concentration and to the subsequent restoration of the equilibrium composition of phases
in the permeate sections. An approximate mathematical model for steady-state mass transfer is proposed

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References

1. Тихонов Н.А., Киршин В.В., Хамизов Р.Х., О зависимости плотности слоя на
поверхности гранул сорбента при изотермическом пересыщении раствора в ионите
от концентрации компонентов, Журн. физ. химии, 2000, Т.74, № 2, С.309-315.
2. Khamizov R., Tikhonov N. and Muraviev D., Peculiarities of the Dynamics of Ion
Exchange in Supersaturated Solutions and Colloid Systems// Langmuir.- 2003.- V.19, N
25.- P.10852-10856.
3. Поляков Ю.С., Использование явления осадкообразования для повышения
эффективности ультра- и микрофильтрационных аппаратов, ТОХТ, 2007, т.41, № 5,
С. 499-506
4. Веницианов Е.В., Рубинштейн Р.Н., Динамика сорбции из жидких сред,
М.,"Наука", 1983 г., 240 с.
5. Дытнерский Ю.И., Баромембранные процессы. Теория и расчёт, М., Химия,
1975 г., 252 с
Published
2019-11-27
How to Cite
Migol, V. G., Khamizov, R. K., Askerniya, A. A., & Korabelnikov, V. M. (2019). Influence of precoat filtration and sorption on the mass-transfer of silicates through reverse osmotic membranes. I. The process model. Sorbtsionnye I Khromatograficheskie Protsessy, 11(6). Retrieved from https://journals.vsu.ru/sorpchrom/article/view/2003