Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1994-05-20
1995-06-20
Gorgos, Kathryn
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204164, 204186, 204267, 204272, 204302, 210748, C02F 1461
Patent
active
054258588
ABSTRACT:
An electrochemical cell for capacitive deionization and electrochemical purification and regeneration of electrodes includes two oppositely disposed, spaced-apart end plates, one at each end of the cell. Two generally identical single-sided end electrodes, are arranged one at each end of the cell, adjacent to the end plates. An insulator layer is interposed between each end plate and the adjacent end electrode. Each end electrode includes a single sheet of conductive material having a high specific surface area and sorption capacity. In the preferred embodiment, the sheet of conductive material is formed of carbon aerogel composite. The cell further includes a plurality of generally identical double-sided intermediate electrodes that are equidistally separated from each other, between the two end electrodes. As the electrolyte enters the cell, it flows through a continuous open serpentine channel defined by the electrodes, substantially parallel to the surfaces of the electrodes. By polarizing the cell, ions are removed from the electrolyte and are held in the electric double layers formed at the carbon aerogel surfaces of the electrodes. As the cell is saturated with the removed ions, the cell is regenerated electrically, thus significantly minimizing secondary wastes.
REFERENCES:
patent: 3859195 (1975-01-01), Williams
patent: 3883412 (1975-05-01), Jensen
patent: 5260855 (1993-11-01), Kaschmitter et al.
Allan M. Johnson et al., "The Electrosorb Process for Desalting Water", Mar. 1970, The Office of Saline Water Research and Development Progress Report No. 516, U.S. Department of the Interior PB 200 056.
A. M. Johnson and John Newman, "Desalting by Means of Porous Carbon Electrodes", Mar. 1971, pp. 510-517, J. Electrochem. Soc.: Electrochemical Technology (vol. 118, No. 3).
Gary C. Ganzi, Jonathan H. Wood, Christopher S. Griffin, "Water Purification and Recycling Using the CDI Process", Feb. 1992, pp. 49-53, Environmental Progress (vol. 11, No. 1).
Gorgos Kathryn
Phasge Arun S,.
Sartorio Henry P.
The Regents of the University of California
LandOfFree
Method and apparatus for capacitive deionization, electrochemica does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for capacitive deionization, electrochemica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for capacitive deionization, electrochemica will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1842352