Electro-osmotically Induced Convection At A Charge-selective Membrane
Price
Free (open access)
Paper DOI
10.2495/AFM020361
Transaction
Volume
36
Pages
10
Published
2002
Size
493 kb
Author(s)
I. Rubinstein & B. Zaltzman
Abstract
The paper is concerned with convection induced by non equilibrium electroosmosis at, an ion exchange electrodialysis membrane, as a source of over limiting conductance through the membrane. Derivation of non equilibrium electroosmotic slip condition is recapitulated along with the results of linear stability analysis of quiescent electrodiffusion. through a flat ion exchange membrane. Results of numerical calculation pertaining to nonlinear convection, developing from the respective instability, are reported along with those of recent experiments with modified membranes. These latter rule in favor of surface versus h l ~ origin c of over limiting conductance through ion exchange membranes.
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