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Updated: Aug 21, 2026

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
Published on: February 23, 2017
A theory of overshoot phenomena in an ion-exchange membrane system
Hiroyuki Ohshima1, Hidenori Baiju, Atsushi Hyono
1Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki Noda, Chiba 278-8510, Japan. ohshima@rs.noda.tus.ac.jp
Abstract:
A simple theory based on a kinetics equation with time delay is presented for ion permeation through an ion-exchange membrane for the case where two or more species of ions of the same charge are permeating from solutions 1 to 2 through the membrane. This theory explains the observation of Neihof and Sollner that if the exchange rates of ionic species are quite different from each other, then the concentration of the fastest exchanging species of ions in solution 2 exhibits overshoot [R. Neihof, K. Sollner, J. Phys. Chem. 61 (1957) 159].
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