Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes
- Livermore, CA
- Tracy, CA
- Manteca, CA
An electrically regeneratable electrochemical cell (30) for capacitive deionization and electrochemical purification and regeneration of electrodes includes two end plates (31, 32), one at each end of the cell (30). A new regeneration method is applied to the cell (30) which includes slowing or stopping the purification cycle, electrically desorbing contaminants and removing the desorbed contaminants. The cell (30) further includes a plurality of generally identical double-sided intermediate electrodes (37-43) that are equidistally separated from each other, between the two end electrodes (35, 36). As the electrolyte enters the cell, it flows through a continuous open serpentine channel (65-71) defined by the electrodes, substantially parallel to the surfaces of the electrodes. By polarizing the cell (30), ions are removed from the electrolyte and are held in the electric double layers formed at the carbon aerogel surfaces of the electrodes. The cell (30) is regenerated electrically to desorb such previously removed ions.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Regents of the University of California (Oakland, CA)
- Patent Number(s):
- US 6309532
- OSTI ID:
- 874086
- Country of Publication:
- United States
- Language:
- English
Continuous Quantitative Electrolysis.
|
journal | June 1964 |
Electrosorption of Chromium Ions on Carbon Aerogel Electrodes as a Means of Remediating Ground Water
|
journal | March 1997 |
Modified graphites for chelation and ion exchange
|
journal | December 1978 |
Capacitive deionization of NH4ClO4 solutions with carbon aerogel electrodes
|
journal | October 1996 |
Electrochromatography—a preliminary study of the effect of applied potential on a carbonaceous chromatographic column
|
journal | January 1984 |
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Related Subjects
apparatus
capacitive
deionization
electrochemical
purification
regeneration
electrodes
electrically
regeneratable
cell
30
plates
31
32
applied
slowing
stopping
cycle
desorbing
contaminants
removing
desorbed
plurality
identical
double-sided
intermediate
37-43
equidistally
separated
35
36
electrolyte
enters
flows
continuous
serpentine
channel
65-71
defined
substantially
parallel
surfaces
polarizing
removed
held
electric
double
layers
formed
carbon
aerogel
regenerated
desorb
previously
electrochemical cell
capacitive deionization
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