The process of
Electrodeionisation - ION selective membranes operate using the same principle as the
Resins, but they are used to isolate ions from their counterions.
Anion selective membranes are pemeable to anions, but not to cations,
and cation selective membranes are to cations, but not to anions. By spacing alternating
layers of anion and cation selective membranes, both diluting and concentrating
compartments are created under the influence of a DC potential. Thus as the water moves
through the diluting compartment