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Updated: Jun 25, 2026

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
Published on: February 23, 2017
Transport of non-electrolyte solutions through membrane with concentration polarization
Sławomir Grzegorczyn1, Jolanta Jasik-Slezak, Katarzyna Michalska-Małecka
1Department of Biophysics, Silesia Medical University, H. Jordan Str. 19, 41 808 Zabrze, Poland. grzegorczyn@sum.edu.pl
Abstract:
Mathematical model of the volume fluxes through neutral membrane with concentration boundary layers on both sides of this membrane is presented. This model, based on the Kedem-Katchalsky equations, describes the volume flux generated by osmotic and hydrostatic forces for non-homogeneous and non-electrolyte solutions. Nonlinear equation for volume flux was used for numerical calculation in linear regime of hydrodynamic stability. In the steady state of non-homogeneous solutions the dependence of volume flux on pressure difference is shifted with regard to this dependence for homogeneous solution, while the volume flux as a function of osmotic pressure between chambers is characterized by different angle of inclination for homogeneous and non-homogeneous solutions.
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