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GB2349648A - Electrodialysis apparatus - Google Patents

Electrodialysis apparatus

Info

Publication number
GB2349648A
GB2349648A GB0018425A GB0018425A GB2349648A GB 2349648 A GB2349648 A GB 2349648A GB 0018425 A GB0018425 A GB 0018425A GB 0018425 A GB0018425 A GB 0018425A GB 2349648 A GB2349648 A GB 2349648A
Authority
GB
United Kingdom
Prior art keywords
electrodialysis apparatus
chamber
ion exchange
anode
electrodialysis
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.)
Granted
Application number
GB0018425A
Other versions
GB0018425D0 (en
GB2349648B (en
Inventor
Nigel Emery
Roger Woodward
Paul Whitehead
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.)
Water Applications and Systems Corp
Original Assignee
United States Filter Corp
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 United States Filter Corp filed Critical United States Filter Corp
Publication of GB0018425D0 publication Critical patent/GB0018425D0/en
Publication of GB2349648A publication Critical patent/GB2349648A/en
Application granted granted Critical
Publication of GB2349648B publication Critical patent/GB2349648B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
    • C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
    • 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
    • C02F2201/4611—Fluid flow
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

An electrodialysis apparatus for purifying water is described. The apparatus has an anode chamber and cathode chamber, and is characterised in that each of said anode and cathode chambers contains a porous bed of ion exchange material. There are preferred flow directions through each chamber. The electrodialysis apparatus of the present invention does not require the addition of acid or alkali to the electrode chambers and relies on water splitting at the electrodes for the generation of hydronium and hydroxide ions for replenishing the ion exchange resins within the electrode compartments and for assisting in driving out the ionic impurities from the desalting stream flow paths into the concentrating stream. Two or more electrodialysis apparatus could be combined to form a polyelectrodialysis apparatus.
GB0018425A 1998-02-09 1999-02-05 Electrodialysis apparatus Expired - Lifetime GB2349648B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9802732.9A GB9802732D0 (en) 1998-02-09 1998-02-09 Electrodialysis apparatus
PCT/US1999/002552 WO1999039810A1 (en) 1998-02-09 1999-02-05 Electrodialysis apparatus

Publications (3)

Publication Number Publication Date
GB0018425D0 GB0018425D0 (en) 2000-09-13
GB2349648A true GB2349648A (en) 2000-11-08
GB2349648B GB2349648B (en) 2002-11-13

Family

ID=10826708

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9802732.9A Ceased GB9802732D0 (en) 1998-02-09 1998-02-09 Electrodialysis apparatus
GB0018425A Expired - Lifetime GB2349648B (en) 1998-02-09 1999-02-05 Electrodialysis apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9802732.9A Ceased GB9802732D0 (en) 1998-02-09 1998-02-09 Electrodialysis apparatus

Country Status (3)

Country Link
DE (1) DE19982837B4 (en)
GB (2) GB9802732D0 (en)
WO (1) WO1999039810A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0016846D0 (en) 2000-07-10 2000-08-30 United States Filter Corp Electrodeionisation Apparatus
US7147785B2 (en) 2000-09-28 2006-12-12 Usfilter Corporation Electrodeionization device and methods of use
WO2003033122A2 (en) 2001-10-15 2003-04-24 United States Filter Corporation Apparatus for fluid purification and methods of manufacture and use thereof
US7501061B2 (en) 2002-10-23 2009-03-10 Siemens Water Technologies Holding Corp. Production of water for injection using reverse osmosis
US7563351B2 (en) 2003-11-13 2009-07-21 Siemens Water Technologies Holding Corp. Water treatment system and method
US7582198B2 (en) 2003-11-13 2009-09-01 Siemens Water Technologies Holding Corp. Water treatment system and method
US7083733B2 (en) 2003-11-13 2006-08-01 Usfilter Corporation Water treatment system and method
US7604725B2 (en) 2003-11-13 2009-10-20 Siemens Water Technologies Holding Corp. Water treatment system and method
US8377279B2 (en) 2003-11-13 2013-02-19 Siemens Industry, Inc. Water treatment system and method
US7329358B2 (en) 2004-05-27 2008-02-12 Siemens Water Technologies Holding Corp. Water treatment process
US7658828B2 (en) 2005-04-13 2010-02-09 Siemens Water Technologies Holding Corp. Regeneration of adsorption media within electrical purification apparatuses
US10213744B2 (en) 2006-06-13 2019-02-26 Evoqua Water Technologies Llc Method and system for water treatment
US8277627B2 (en) 2006-06-13 2012-10-02 Siemens Industry, Inc. Method and system for irrigation
US10252923B2 (en) 2006-06-13 2019-04-09 Evoqua Water Technologies Llc Method and system for water treatment
US20080067069A1 (en) 2006-06-22 2008-03-20 Siemens Water Technologies Corp. Low scale potential water treatment
MX2008016077A (en) * 2006-06-22 2009-01-19 Siemens Water Tech Corp Electrodeioni zation apparatus and low scale potential water treatment.
US7820024B2 (en) 2006-06-23 2010-10-26 Siemens Water Technologies Corp. Electrically-driven separation apparatus
KR20100099227A (en) 2007-11-30 2010-09-10 지멘스 워터 테크놀로지스 코포레이션 Systems and methods for water treatment
US12180103B2 (en) 2017-08-21 2024-12-31 Evoqua Water Technologies Llc Treatment of saline water for agricultural and potable use and for generation of disinfectant solution
EA202090132A1 (en) 2017-08-21 2020-08-03 Эвокуа Уотер Текнолоджиз Ллк TREATMENT OF SALT WATER FOR ITS USE FOR AGRICULTURAL AND INDUSTRIAL NEEDS

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923674A (en) * 1958-02-03 1960-02-02 Permutit Co Ltd Process for the removal of dissolved solids from liquids
US3014855A (en) * 1958-05-07 1961-12-26 Permutit Co Ltd Process of concentrating dissolved salts by electrodialysis
FR1282890A (en) * 1961-02-27 1962-01-27 American Mach & Foundry Electrodialysis method and apparatus
US3084113A (en) * 1960-02-01 1963-04-02 Gen Electric Methods of and apparatus for demineralizing water
US4787561A (en) * 1986-08-13 1988-11-29 Gte Products Corporation Fine granular metallic powder particles and process for producing same
DE4418812A1 (en) * 1994-05-30 1995-12-07 Forschungszentrum Juelich Gmbh Single and multiple electrolytic cells for deionising aq. solns.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL214802A (en) * 1956-02-22
FR1547493A (en) * 1967-07-25 1968-11-29 Improvements to the means for removing ions from a solution
US3645884A (en) * 1969-07-10 1972-02-29 Edwin R Gilliland Electrolytic ion exchange apparatus
US3893901A (en) * 1973-12-04 1975-07-08 Vast Associates Inc J System for softening and dealkalizing water by electrodialysis
DE3217990A1 (en) * 1982-05-13 1983-11-17 Gerhard Dipl.-Chem. Dr.-Ing. 5628 Heiligenhaus Kunz Process and apparatus for treating liquids, in particular desalting aqueous solutions
EP0892677B1 (en) * 1996-11-12 2001-11-28 United States Filter Corporation Electrodeionization apparatus and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923674A (en) * 1958-02-03 1960-02-02 Permutit Co Ltd Process for the removal of dissolved solids from liquids
US3014855A (en) * 1958-05-07 1961-12-26 Permutit Co Ltd Process of concentrating dissolved salts by electrodialysis
US3084113A (en) * 1960-02-01 1963-04-02 Gen Electric Methods of and apparatus for demineralizing water
FR1282890A (en) * 1961-02-27 1962-01-27 American Mach & Foundry Electrodialysis method and apparatus
US4787561A (en) * 1986-08-13 1988-11-29 Gte Products Corporation Fine granular metallic powder particles and process for producing same
DE4418812A1 (en) * 1994-05-30 1995-12-07 Forschungszentrum Juelich Gmbh Single and multiple electrolytic cells for deionising aq. solns.

Also Published As

Publication number Publication date
GB0018425D0 (en) 2000-09-13
DE19982837B4 (en) 2010-12-30
GB9802732D0 (en) 1998-04-08
GB2349648B (en) 2002-11-13
DE19982837T1 (en) 2001-03-22
WO1999039810A1 (en) 1999-08-12

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
711B Application made for correction of error (sect. 117/77)
711G Correction allowed (sect. 117/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20111222 AND 20111223

PE20 Patent expired after termination of 20 years

Expiry date: 20190204