Nonlinear transport of calcium chelate across anion exchange membrane during electrodialysis

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