GB989131A - Improvements in or relating to electrodialysis - Google Patents
Improvements in or relating to electrodialysisInfo
- Publication number
- GB989131A GB989131A GB8980/63A GB898063A GB989131A GB 989131 A GB989131 A GB 989131A GB 8980/63 A GB8980/63 A GB 8980/63A GB 898063 A GB898063 A GB 898063A GB 989131 A GB989131 A GB 989131A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- gas
- electrodialysis
- air
- mixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000909 electrodialysis Methods 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 abstract 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 230000010287 polarization Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/52—Accessories; Auxiliary operation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4604—Treatment of water, waste water, or sewage by electrochemical methods for desalination of seawater or brackish water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/46115—Electrolytic cell with membranes or diaphragms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
In electrodialysis of a liquid, to reduce polarization due to deposits forming on permeable membranes, an electrically non-conducting gas is mixed with the liquid before passing electric current through it. Typically the gas is air and volume of air to liquid is in the range of 1:1-3:1 by volume. Mixing may be effected by introducing the gas into a pipeline along which the liquid is being pumped either by using a slightly higher pressure for the gas than the liquid or by causing the liquid to draw gas into the pipeline or the liquid may be introduced into a pressure gas line. In the production of pure water using a resin-packed electrodialysis stack as in Specification 942,762 the water to be treated may be mixed with compressed air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8980/63A GB989131A (en) | 1963-03-06 | 1963-03-06 | Improvements in or relating to electrodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8980/63A GB989131A (en) | 1963-03-06 | 1963-03-06 | Improvements in or relating to electrodialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB989131A true GB989131A (en) | 1965-04-14 |
Family
ID=9863034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8980/63A Expired GB989131A (en) | 1963-03-06 | 1963-03-06 | Improvements in or relating to electrodialysis |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB989131A (en) |
-
1963
- 1963-03-06 GB GB8980/63A patent/GB989131A/en not_active Expired
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