Definitions for "Concentration polarization"
The accumulation of ionics species within the boundary layer at the surface of crossflow membranes. The concentration of ions is greater at the surface of the membrane than in the bulk feed stream.
In crossflow filtration, the formation of a more concentrated gradient of rejected material near the surface of the membrane causing either increased resistance to solvent transport, or an increase in local osmotic pressure, and possibly a change in rejection characteristics of the membrane.
That portion of the polarization of a cell produced by concentration changes resulting from passage of current through the electrolyte.