GB1456721A - Electrophoresis and electro-osmosis in settlement and consoli dation of solid/fluid suspensions - Google Patents

Electrophoresis and electro-osmosis in settlement and consoli dation of solid/fluid suspensions

Info

Publication number
GB1456721A
GB1456721A GB64874A GB64874A GB1456721A GB 1456721 A GB1456721 A GB 1456721A GB 64874 A GB64874 A GB 64874A GB 64874 A GB64874 A GB 64874A GB 1456721 A GB1456721 A GB 1456721A
Authority
GB
United Kingdom
Prior art keywords
solids
electro
electrode
electrodes
tubes
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
GB64874A
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.)
Acres Consulting Services Ltd
Original Assignee
Acres Consulting Services Ltd
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 Acres Consulting Services Ltd filed Critical Acres Consulting Services Ltd
Priority to GB64874A priority Critical patent/GB1456721A/en
Priority to CA217,600A priority patent/CA1031719A/en
Publication of GB1456721A publication Critical patent/GB1456721A/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
    • B01D43/00—Separating particles from liquids, or liquids from solids, otherwise than by sedimentation or filtration
    • 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B7/00—Electrophoretic production of compounds or non-metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Urology & Nephrology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treatment Of Sludge (AREA)

Abstract

1456721 Removing solids from suspensions by electro-phoretic migration and electro-osmotic consolidation ACRES CONSULTING SERVICES Ltd 20 Jan 1975 [7 Jan 1974] 648/74 Heading C7B Suspended solids are removed from an aqueous suspension, e.g. a ceramic slurry to produce castings from clay slips, by introducing a layer of the suspension between two generally plane parallel electrodes of an electrode assembly, applying an electrical potential across the electrodes low enough to preclude electrolysis but sufficient to cause electro-phoretic migration of the solids to one electrode and electro-osmotic consolidation of the solids at the one electrode, and separating the solids accumulating at the one electrode. The electrode assembly 8, e.g. comprising a heavy gauge open Ni wire mesh anode 2 separated from a light gauge fine steel wire mesh cathode 4, includes collapsible insulating spacer means, e.g. flexible plastics tubes 6 secured to the meshes by tie loops 10, and is freed from accumulations of solids by collapsing the spacer means e.g. by evacuating the tubes 6 to squeeze out the solids. The tubes may be replaced by expanded plastics mesh or non-woven mat of bonded resilient fibres, and the electrodes by welded, woven or expanded metal. The electrodes 2, 4 are preferably separated by ¢ to 1 inch and maintained at a PD of 2 to 5 volts. The electrode assembly may be in the form of a belt to convey the consolidated solids away from the separation zone. As shown Fig. 1 a plurality of electrode belts 44 arranged one within another are supported by rollers 40, 42 on arms 36, 38 projecting from buoyancy chamber 34 inter-connected with buoyancy chambers 32 floating on a pond or tank surface of the suspension. Electric power is supplied through brush skid or roller contact 46. Solids pressed out in zone 50 are scraped off by blade 48 and collected in belt conveyer 52; the belts are then washed by spray heads 54. Intermittent operation is preferred.
GB64874A 1974-01-07 1974-01-07 Electrophoresis and electro-osmosis in settlement and consoli dation of solid/fluid suspensions Expired GB1456721A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB64874A GB1456721A (en) 1974-01-07 1974-01-07 Electrophoresis and electro-osmosis in settlement and consoli dation of solid/fluid suspensions
CA217,600A CA1031719A (en) 1974-01-07 1975-01-07 Treatment of suspensions and slurries by electrophoresis and electro-osmosis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB64874A GB1456721A (en) 1974-01-07 1974-01-07 Electrophoresis and electro-osmosis in settlement and consoli dation of solid/fluid suspensions

Publications (1)

Publication Number Publication Date
GB1456721A true GB1456721A (en) 1976-11-24

Family

ID=9708053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB64874A Expired GB1456721A (en) 1974-01-07 1974-01-07 Electrophoresis and electro-osmosis in settlement and consoli dation of solid/fluid suspensions

Country Status (2)

Country Link
CA (1) CA1031719A (en)
GB (1) GB1456721A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143850A (en) * 1983-07-16 1985-02-20 Lyn Illtyd Davies Llewellyn Thickening coal washery tailings
GB2216454A (en) * 1988-03-03 1989-10-11 Thuringia Sonneberg Veb Apparatus for feeding moulding machines
GB2294948A (en) * 1994-10-06 1996-05-15 Scapa Group Plc De-watering sludge/slurry by simultaneous mechanical compression and electro-osmosis using conductive belt
US5891342A (en) * 1994-10-06 1999-04-06 Scapa Group Plc Dewatering process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143850A (en) * 1983-07-16 1985-02-20 Lyn Illtyd Davies Llewellyn Thickening coal washery tailings
GB2216454A (en) * 1988-03-03 1989-10-11 Thuringia Sonneberg Veb Apparatus for feeding moulding machines
GB2294948A (en) * 1994-10-06 1996-05-15 Scapa Group Plc De-watering sludge/slurry by simultaneous mechanical compression and electro-osmosis using conductive belt
GB2294948B (en) * 1994-10-06 1998-02-25 Scapa Group Plc Dewatering process
US5891342A (en) * 1994-10-06 1999-04-06 Scapa Group Plc Dewatering process

Also Published As

Publication number Publication date
CA1031719A (en) 1978-05-23

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Legal Events

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