FR2367526A1 - Sepg. solids from liq. suspension esp. biological sludge - by electrophoretic deposition of particles on immersed electrode - Google Patents

Sepg. solids from liq. suspension esp. biological sludge - by electrophoretic deposition of particles on immersed electrode

Info

Publication number
FR2367526A1
FR2367526A1 FR7630814A FR7630814A FR2367526A1 FR 2367526 A1 FR2367526 A1 FR 2367526A1 FR 7630814 A FR7630814 A FR 7630814A FR 7630814 A FR7630814 A FR 7630814A FR 2367526 A1 FR2367526 A1 FR 2367526A1
Authority
FR
France
Prior art keywords
suspension
particles
liq
electrode
sepg
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
FR7630814A
Other languages
French (fr)
Other versions
FR2367526B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7630814A priority Critical patent/FR2367526A1/en
Publication of FR2367526A1 publication Critical patent/FR2367526A1/en
Application granted granted Critical
Publication of FR2367526B1 publication Critical patent/FR2367526B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
    • 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
    • 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
    • C02F1/4696—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrophoresis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Water Supply & Treatment (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrostatic Separation (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The suspension is subjected to an electric field between two electrodes of opposite polarity. Particles migrate by electrophoresis to become deposited on one electrode from which tye are scraped and collected as a practically dry sludge. The electrode on which particles are deposited is pref. alternately immersed in the suspension for deposition and then brought out for scraping. An electrode in the form of a rotating disc conveniently provides the alternating cycle. The process can be effected with a batch of suspension which is processed until satisfactorily sepd. Alternatively the process plant can receive a continuous supply of incoming suspension, sepd. liq. being recycled into incoming suspension until purified. Used for sepg. solid particles from liq. suspension, partic. colloidal particles in biological sludge arising from the purificn. of industrial and/or domestic waste water. Used also as an industrial separator to replace filter presses in the paper-making and rubber industries. System provides a sludge dried to only a few per cent moisture content, and does not rely on filters which rapidly block and lose efficiency.
FR7630814A 1976-10-13 1976-10-13 Sepg. solids from liq. suspension esp. biological sludge - by electrophoretic deposition of particles on immersed electrode Granted FR2367526A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7630814A FR2367526A1 (en) 1976-10-13 1976-10-13 Sepg. solids from liq. suspension esp. biological sludge - by electrophoretic deposition of particles on immersed electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7630814A FR2367526A1 (en) 1976-10-13 1976-10-13 Sepg. solids from liq. suspension esp. biological sludge - by electrophoretic deposition of particles on immersed electrode

Publications (2)

Publication Number Publication Date
FR2367526A1 true FR2367526A1 (en) 1978-05-12
FR2367526B1 FR2367526B1 (en) 1981-12-31

Family

ID=9178721

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7630814A Granted FR2367526A1 (en) 1976-10-13 1976-10-13 Sepg. solids from liq. suspension esp. biological sludge - by electrophoretic deposition of particles on immersed electrode

Country Status (1)

Country Link
FR (1) FR2367526A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519874A1 (en) * 1982-01-18 1983-07-22 Exteral Electrostatic sepn. of particles from clay slurries etc. - uses rotating disc partly immersed in slurry to gather polarised particles
EP2383232A1 (en) * 2010-04-29 2011-11-02 Omya Development AG System and Method for the Concentration of a Slurry
CN111977755A (en) * 2020-08-20 2020-11-24 广东自远环保股份有限公司 Electroosmosis dehydration method for printed circuit board wastewater treatment system
CN111977756A (en) * 2020-08-20 2020-11-24 广东自远环保股份有限公司 Electroosmosis dehydration equipment for printed circuit board wastewater treatment system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519874A1 (en) * 1982-01-18 1983-07-22 Exteral Electrostatic sepn. of particles from clay slurries etc. - uses rotating disc partly immersed in slurry to gather polarised particles
EP2383232A1 (en) * 2010-04-29 2011-11-02 Omya Development AG System and Method for the Concentration of a Slurry
WO2011135022A1 (en) * 2010-04-29 2011-11-03 Omya Development Ag System and method for the concentration of a slurry
CN102933505A (en) * 2010-04-29 2013-02-13 Omya发展股份公司 System and method for the concentration of a slurry
JP2013527031A (en) * 2010-04-29 2013-06-27 オムヤ・デイベロツプメント・アー・ゲー System and method for slurry concentration
CN102933505B (en) * 2010-04-29 2014-06-18 Omya国际股份公司 System and method for the concentration of a slurry
US9339763B2 (en) 2010-04-29 2016-05-17 Omya International Ag System and method for the concentration of a slurry
US9387439B2 (en) 2010-04-29 2016-07-12 Omya International Ag System and method for the concentration of a slurry
US9643126B2 (en) 2010-04-29 2017-05-09 Omya International Ag System and method for the concentration of a slurry
CN111977755A (en) * 2020-08-20 2020-11-24 广东自远环保股份有限公司 Electroosmosis dehydration method for printed circuit board wastewater treatment system
CN111977756A (en) * 2020-08-20 2020-11-24 广东自远环保股份有限公司 Electroosmosis dehydration equipment for printed circuit board wastewater treatment system

Also Published As

Publication number Publication date
FR2367526B1 (en) 1981-12-31

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