GB1414564A - Dewatering of slurries - Google Patents

Dewatering of slurries

Info

Publication number
GB1414564A
GB1414564A GB1850173A GB1850173A GB1414564A GB 1414564 A GB1414564 A GB 1414564A GB 1850173 A GB1850173 A GB 1850173A GB 1850173 A GB1850173 A GB 1850173A GB 1414564 A GB1414564 A GB 1414564A
Authority
GB
United Kingdom
Prior art keywords
cathode
membrane
anodes
dewatering
april
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
GB1850173A
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.)
Electricity Council
Original Assignee
Electricity Council
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 Electricity Council filed Critical Electricity Council
Priority to GB1850173A priority Critical patent/GB1414564A/en
Publication of GB1414564A publication Critical patent/GB1414564A/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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/15—Treatment of sludge; Devices therefor by de-watering, drying or thickening by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves

Landscapes

  • Water Supply & Treatment (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

1414564 Electrostatic dewatering of slurries ELECTRICITY COUNCIL 4 April 1974 [17 April 1973] 18501/73 Heading C1C [Also in Division C7] An apparatus for dewatering a slurry containing solid particles, consists of at least one upright hollow cathode (10, 11) with an apertured surface, anodes (13, 14, 15) on both sides of the or each cathode, a flexible membrane of electrically insulating material (16) with means for traversing the membrane upwardly and downwardly over the cathode (5) between the cathode and anodes, and means for feeding the slurry into the region between the anodes and the membrane and means (26) for removing the water from inside the cathode(s). Scrapers (25) remove sludge which deposits on the membrane. Sewage sludge or waterworks flocculating agents may be treated. The membrane may be nylon or polypropylene. The anodes may be of lead dioxide, platinum, platinized titanium or ruthenium dioxide; the cathodes may be of stainless steel, or nickel. When treating sewage containing 3% solids, cathode areas of 144 sq. cm. were used at 30 volts and a current density of 22 milliamps per geometric sq. cm. The final wet solid content was 28%.
GB1850173A 1973-04-17 1973-04-17 Dewatering of slurries Expired GB1414564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1850173A GB1414564A (en) 1973-04-17 1973-04-17 Dewatering of slurries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1850173A GB1414564A (en) 1973-04-17 1973-04-17 Dewatering of slurries

Publications (1)

Publication Number Publication Date
GB1414564A true GB1414564A (en) 1975-11-19

Family

ID=10113521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1850173A Expired GB1414564A (en) 1973-04-17 1973-04-17 Dewatering of slurries

Country Status (1)

Country Link
GB (1) GB1414564A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002650A1 (en) * 1979-06-05 1980-12-11 Battelle Memorial Institute Process for concentrating an aqueous sludge by electro-osmosis
CN102192640A (en) * 2011-03-01 2011-09-21 宜兴能达环保科技有限公司 Electroosmotic dehydration method and device for material containing water

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002650A1 (en) * 1979-06-05 1980-12-11 Battelle Memorial Institute Process for concentrating an aqueous sludge by electro-osmosis
EP0022072A1 (en) * 1979-06-05 1981-01-07 Battelle Memorial Institute Method and apparatus for concentrating aqueous sludge by electroosmosis
CN102192640A (en) * 2011-03-01 2011-09-21 宜兴能达环保科技有限公司 Electroosmotic dehydration method and device for material containing water

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee