The Application of Generalized Nernst-Planck Equations to the Description of Ion Retention in the Hyperfiltration of Mixed Electrolyte Solutions through a Neutral Membrane

M. W. Vonk

Gorlaeus Laboratories of the State University of Leiden, Department of Physical and Macromolecular Chemistry, P.O. Box 9502, 2300 RA Leiden, The Netherlands

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J. A. M. Smit,

J. A. M. Smit

Gorlaeus Laboratories of the State University of Leiden, Department of Physical and Macromolecular Chemistry, P.O. Box 9502, 2300 RA Leiden, The Netherlands

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M. W. Vonk,

M. W. Vonk

Gorlaeus Laboratories of the State University of Leiden, Department of Physical and Macromolecular Chemistry, P.O. Box 9502, 2300 RA Leiden, The Netherlands

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J. A. M. Smit,

J. A. M. Smit

Gorlaeus Laboratories of the State University of Leiden, Department of Physical and Macromolecular Chemistry, P.O. Box 9502, 2300 RA Leiden, The Netherlands

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First published: August 1984

https://doi.org/10.1002/bbpc.19840880811

Citations: 7

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Abstract

Pseudo-binary Nernst-Planck equations have been employed to derive expressions for the ion retention in a neutral membrane as a function of the volume flux. The derivation requires an integration across the membrane. In case of a solution of two ion species this integration is exact. For solutions of three kinds of ions the desired result is only obtained along an approximative route and then still only in certain limiting cases.

Nevertheless anomalies in the retention observed in systems containing three types of ions are predicted by the developed theory.

Reference

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Volume88, Issue8

August 1984

Pages 724-732

The Application of Generalized Nernst-Planck Equations to the Description of Ion Retention in the Hyperfiltration of Mixed Electrolyte Solutions through a Neutral Membrane

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The Application of Generalized Nernst-Planck Equations to the Description of Ion Retention in the Hyperfiltration of Mixed Electrolyte Solutions through a Neutral Membrane

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