Nonlinear transport of calcium chelate across anion exchange membrane during electrodialysis

  • Tkhi Le Na Phan post graduate of Voronezh State University, Voronezh
  • Vladimir A. Shaposhnik Dr. Sci, professor of Voronezh State University, Voronezh, е-mail: sh@sh.vrn.ru
  • Tatiana V. Eliseeva Lecturer, Department of Analyical Chemistry, Voronezh State University, Voronezh
  • Margarita A. Makarova student of Voronezh State University, Voronezh
Keywords: Electrodialysis, anion-exchange membrane, formation and destruction of complexes, barrier effect, conjugated transport.

Abstract

The dependence of fluxes of calcium complexonate through anion-exchange membrane MA-41 on
current densities has been investigated. We have found that, at low current densities the function is linear, then
in excess of the limiting current density the flux decreases because of the barrier effect of hydrogen ions, formed
during irreversible dissociation of water molecules at the interface of solution and membrane. At further increase
of current density, the conjugated transport of hydroxyl ions with calcium complexonate leads to increase of the
fluxes

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References

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Published
2019-11-28
How to Cite
Phan, T. L. N., Shaposhnik, V. A., Eliseeva, T. V., & Makarova, M. A. (2019). Nonlinear transport of calcium chelate across anion exchange membrane during electrodialysis. Sorbtsionnye I Khromatograficheskie Protsessy, 10(5). Retrieved from https://journals.vsu.ru/sorpchrom/article/view/2112