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GB2019889A - Electrically Augmented Vacuum Filtration - Google Patents

Electrically Augmented Vacuum Filtration

Info

Publication number
GB2019889A
GB2019889A GB7910260A GB7910260A GB2019889A GB 2019889 A GB2019889 A GB 2019889A GB 7910260 A GB7910260 A GB 7910260A GB 7910260 A GB7910260 A GB 7910260A GB 2019889 A GB2019889 A GB 2019889A
Authority
GB
United Kingdom
Prior art keywords
electrode structures
solids
suspension
vacuum filtration
layer
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
GB7910260A
Other versions
GB2019889B (en
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.)
Dorr Oliver Inc
Original Assignee
Dorr Oliver Inc
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
Priority claimed from US05/898,234 external-priority patent/US4168222A/en
Application filed by Dorr Oliver Inc filed Critical Dorr Oliver Inc
Publication of GB2019889A publication Critical patent/GB2019889A/en
Application granted granted Critical
Publication of GB2019889B publication Critical patent/GB2019889B/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
    • B01D61/56—Electro-osmotic dewatering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/06—Filters making use of electricity or magnetism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D57/00—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C
    • B01D57/02—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C by electrophoresis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C1/00—Apparatus or methods for obtaining or processing clay
    • B28C1/02—Apparatus or methods for obtaining or processing clay for producing or processing clay suspensions, e.g. slip

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Dispersion Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A system for dewatering a suspension of solids in an electric field controllably maintained between opposing electrode structures A, C, to id cause the solids to migrate relative to the carrier liquid to form a layer or cake O on the set of electrode structures A in which the electrode members are positioned within ion- permeable walls and immersed in a selected electrolyte, while allowing carrier liquid to be withdrawn under vacuum in the opposite direction through the liquid-pervious wall of hollow, counter electrode structures C, and wherein said layer or cake material can be detached from said electrode structures A during exposure from the suspension, e.g. by doctor blades 17, 18. <IMAGE>
GB7910260A 1978-04-20 1979-03-23 Electrically augmented vacuum filtration Expired GB2019889B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/898,234 US4168222A (en) 1976-06-17 1978-04-20 Electrically augmented vacuum filtration

Publications (2)

Publication Number Publication Date
GB2019889A true GB2019889A (en) 1979-11-07
GB2019889B GB2019889B (en) 1982-09-02

Family

ID=25409142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910260A Expired GB2019889B (en) 1978-04-20 1979-03-23 Electrically augmented vacuum filtration

Country Status (12)

Country Link
JP (1) JPS54152275A (en)
AT (1) AT370338B (en)
AU (1) AU530986B2 (en)
BE (1) BE875654A (en)
BR (1) BR7901699A (en)
CS (1) CS216814B2 (en)
DE (1) DE2915244A1 (en)
FR (1) FR2423254B2 (en)
GB (1) GB2019889B (en)
IT (1) IT1113326B (en)
NL (1) NL7901729A (en)
ZA (1) ZA79606B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123438A (en) * 1982-03-19 1984-02-01 Dorr Oliver Inc Electrode assembly with ion exchange membrane
GB2154224A (en) * 1984-02-13 1985-09-04 Engelhard Corp Clay dewatering process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303492A (en) * 1980-01-04 1981-12-01 Dorr-Oliver Incorporated Electrode assembly
FR2608453B1 (en) * 1986-07-18 1989-04-21 Omya Sa METHOD OF CONTINUOUS SEPARATION BY ELECTROPHORESIS AND ELECTRO-OSMOSIS OF ELECTRICALLY CHARGED POWDERED SOLID MATERIALS
FR3151034A1 (en) * 2023-07-13 2025-01-17 Veolia Water Solutions & Technologies Support sludge dewatering plant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB662568A (en) * 1949-04-13 1951-12-05 Stanley Mannford Doble Electrically aided plant for de-watering aqueous slurries
US3980547A (en) * 1974-01-25 1976-09-14 J. M. Huber Corporation Electrokinetic cell
US4107026A (en) * 1976-06-17 1978-08-15 Dorr-Oliver Incorporated System and method for electric dewatering of solids suspension

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123438A (en) * 1982-03-19 1984-02-01 Dorr Oliver Inc Electrode assembly with ion exchange membrane
GB2154224A (en) * 1984-02-13 1985-09-04 Engelhard Corp Clay dewatering process

Also Published As

Publication number Publication date
IT1113326B (en) 1986-01-20
AU530986B2 (en) 1983-08-04
BR7901699A (en) 1979-11-27
AT370338B (en) 1983-03-25
ATA299979A (en) 1982-08-15
FR2423254A2 (en) 1979-11-16
CS216814B2 (en) 1982-11-26
IT7921991A0 (en) 1979-04-19
AU4411079A (en) 1979-10-25
NL7901729A (en) 1979-10-23
DE2915244A1 (en) 1979-10-31
JPS54152275A (en) 1979-11-30
DE2915244C2 (en) 1989-12-14
JPS643525B2 (en) 1989-01-23
BE875654A (en) 1979-08-16
ZA79606B (en) 1980-09-24
FR2423254B2 (en) 1988-06-03
GB2019889B (en) 1982-09-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee