Electrodeionization apparatus

Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy

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2041824, 2041825, 204301, B01D 6144, C02F 1469

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active

053084667

ABSTRACT:
An electrodeionization apparatus is provided for removing ions from liquids. The apparatus is particularly well adapted for the removal of large, heavily hydrated, highly charged or weakly ionized molecules or complexes from feed water. Such removal is achieved by substituting, in at least one section of the apparatus, ion exchange membranes and/or resins having lower crosslinking and/or lower selectivity, for the ion exchange membranes commonly used in electrodeionization systems. Methods for reducing the electrical resistance across the membrane also are provided.

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