FR2145755A5 - Electrodialysis desalination appts - for brackish water - Google Patents

Electrodialysis desalination appts - for brackish water

Info

Publication number
FR2145755A5
FR2145755A5 FR7125224A FR7125224A FR2145755A5 FR 2145755 A5 FR2145755 A5 FR 2145755A5 FR 7125224 A FR7125224 A FR 7125224A FR 7125224 A FR7125224 A FR 7125224A FR 2145755 A5 FR2145755 A5 FR 2145755A5
Authority
FR
France
Prior art keywords
circuit
compartments
conc
membranes
dilution
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
Application number
FR7125224A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7125224A priority Critical patent/FR2145755A5/en
Priority to IL39856A priority patent/IL39856A/en
Priority to IT69196/72A priority patent/IT964604B/en
Priority to ES404691A priority patent/ES404691A1/en
Application granted granted Critical
Publication of FR2145755A5 publication Critical patent/FR2145755A5/en
Expired legal-status Critical Current

Links

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electrochemistry (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

Desalination, or even demineralisation, of brackish water is effected by dialysis in the conventional manner. The dialysis cell is formed by a series of compartments, some arranged on a dilution circuit and the others on a concentration circuit, the circuits being sepd. by semi-permeable membranes. In the new process, sea-water is circulated in the concentration compartments in an open circuit without re-cycling; the sea-water serves to assure the rinsing of the electrodes which create the electric field in the cell. In this way the conc. of certain harmful ions in the conc. circuit is avoided and the exchange membranes are not "poisoned"; i.e. their resistance is not increased nor is their selectivity diminished. The membranes are alternately anionic and cationic and the two outside compartments include respectively an anode and a cathode. The even rows of the compartments form the dilution circuit while the odd rows form the conc. circuit. Under the effect of the electric field the cations and the anions of the dilution circuit are extracted through the respective cationic and anionic membranes and pass into the adjacent conc. compartments.
FR7125224A 1971-07-09 1971-07-09 Electrodialysis desalination appts - for brackish water Expired FR2145755A5 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7125224A FR2145755A5 (en) 1971-07-09 1971-07-09 Electrodialysis desalination appts - for brackish water
IL39856A IL39856A (en) 1971-07-09 1972-07-07 Process for the desalination of saline water by electrodialysis
IT69196/72A IT964604B (en) 1971-07-09 1972-07-07 PROCEDURE FOR THE DESALINATION OF BRACKISH WATER BY ELECTRODIALYSIS
ES404691A ES404691A1 (en) 1971-07-09 1972-07-08 Procedure for desalination of water salobre by electrodialysis. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7125224A FR2145755A5 (en) 1971-07-09 1971-07-09 Electrodialysis desalination appts - for brackish water

Publications (1)

Publication Number Publication Date
FR2145755A5 true FR2145755A5 (en) 1973-02-23

Family

ID=9080116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7125224A Expired FR2145755A5 (en) 1971-07-09 1971-07-09 Electrodialysis desalination appts - for brackish water

Country Status (4)

Country Link
ES (1) ES404691A1 (en)
FR (1) FR2145755A5 (en)
IL (1) IL39856A (en)
IT (1) IT964604B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663862A1 (en) * 1990-06-28 1992-01-03 Le Marois Gilles Electrodialysis device
FR2803284A1 (en) * 2000-01-03 2001-07-06 Michel Bernard AUTOMATIC DEVICE FOR PURIFYING DRINKING WATER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663862A1 (en) * 1990-06-28 1992-01-03 Le Marois Gilles Electrodialysis device
FR2803284A1 (en) * 2000-01-03 2001-07-06 Michel Bernard AUTOMATIC DEVICE FOR PURIFYING DRINKING WATER
WO2001049397A1 (en) * 2000-01-03 2001-07-12 Michel Bernard Automatic device for purifying drinking water

Also Published As

Publication number Publication date
IL39856A0 (en) 1972-09-28
IL39856A (en) 1976-01-30
IT964604B (en) 1974-01-31
ES404691A1 (en) 1975-06-16

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Legal Events

Date Code Title Description
ST Notification of lapse