Patent ID: 8882981

Claim:
A method for super-capacitor desalination, comprising: providing a super-capacitor desalination (SCD) device comprising: a pair of terminal electrodes, a plurality of SCD stacks each comprising a plurality of single electrodes wherein at least two adjacent single electrodes in different SCD stacks are electrically connected in series to form at least one bipolar electrode, the at least one bipolar electrode being between the terminal electrodes, the first of the two electrically connected adjacent single electrodes having the ion exchange material disposed on a surface that faces away from the second of the two electrically connected adjacent single electrodes, and the second of the two electrically connected adjacent single electrodes having the ion exchange material disposed on a surface that faces away from the first of the two electrically connected adjacent single electrodes; and a plurality of chambers formed between the terminal electrodes and the at least one bipolar electrode; the ion exchange material being a cation exchange material or an anion exchange material; supplying opposite polarities to the terminal electrodes to generate an electric field therebetween; introducing a plurality of feed streams into the chambers; simultaneously producing at least one dilute solution in a first chamber and at least one concentrated solution in a second chamber; periodically reversing the opposite polarities to the terminal electrodes; and periodically switching the introduced feed streams for continuously producing the at least one dilute solution in the second chamber and the at least one concentrated solution in the first chamber.