Electro-osmotic dewatering electrochemical approach

The fundamental electrochemical approach of interest in this context is the electro-osmotic dewatering (EOD) of clays, the phenomenology... 

An electrochemical approach based on the considerations of double layers at the clay-water interface provides a more transparent approach for understanding the physical and chemical events occurring during electro-osmotic dewatering in particular, it shows more clearly how various parameters (applied voltage, pH profiles, zeta potential, electrode reactions, etc.) known to influence the EOD process come into play. The framework for the electrochemical interpretation of the EOD phenomenon is summarized in the next section. 

IV. THE ELECTROCHEMICAL APPROACH TO ELECTRO-OSMOTIC DEWATERING HELMHOLTZ-SMOLUCHOWSKI RELATION... 

The theoretical approach generally used "in electro-osmotic dewatering is an electrochemical one in which the Helmholtz-Smoluchowski relation is used to relate the electro-osmotic convective liquid velocity to such parameters as the viscosity and permittivity of the solution, the zeta potential of the clay surface, and the strength of the applied field. Also, electrode kinetic effects are taken into account where the data point to the involvement of electrochemical reactions at the electrodes during the EOD process. " In combined pressure-electro-osmotic dewatering (CPEOD), the effect of pressure is interpreted in an empirical, ad-hoc manner without any attempt to develop a comprehensive theoretical framework that combines the two driving forces, namely, the pressure and the electric field. 

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See also in sourсe #XX -- [ ]

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