FR2256903A1 - Water purified by electroflotation - for rapid sedimentation and clean clarified water - Google Patents

Water purified by electroflotation - for rapid sedimentation and clean clarified water

Info

Publication number
FR2256903A1
FR2256903A1 FR7500423A FR7500423A FR2256903A1 FR 2256903 A1 FR2256903 A1 FR 2256903A1 FR 7500423 A FR7500423 A FR 7500423A FR 7500423 A FR7500423 A FR 7500423A FR 2256903 A1 FR2256903 A1 FR 2256903A1
Authority
FR
France
Prior art keywords
water
electrofloatation
station
electroflotation
clean
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
FR7500423A
Other languages
French (fr)
Other versions
FR2256903B3 (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.)
BARVIEW DEV
Original Assignee
BARVIEW DEV
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 BARVIEW DEV filed Critical BARVIEW DEV
Publication of FR2256903A1 publication Critical patent/FR2256903A1/en
Application granted granted Critical
Publication of FR2256903B3 publication Critical patent/FR2256903B3/fr
Granted 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
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/04—Aerobic processes using trickle filters
    • 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
    • C02F11/02—Biological treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

Process for treating waste water comprises passing it through an electrofloatation station where small bubbles of H2 and O2 are produced electrolytically within the lower regions of the water and as these bubbles rise they entrain solids held in suspension or in emulsion. Pref. large solid particles are broken up before treatment and chemical flocculants may be added during electrolysis. Also claimed is an apparatus for carrying out this process in which the electrofloatation station is provided with one or more electrolysis grids each having several spaced-apart anodes and cathodes. Process is rapid (3-90 min. if 12-36 hr. for classical sedimentation processes), and is applicable to waters not amenable to purely biological purification (e.g. those contg. detergents or other poisons) and those at any temp. Since the clarified water produced is fairly clean further treatment stages may be effected in relatively small apparatus.
FR7500423A 1974-01-08 1975-01-08 Water purified by electroflotation - for rapid sedimentation and clean clarified water Granted FR2256903A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB73974 1974-01-08

Publications (2)

Publication Number Publication Date
FR2256903A1 true FR2256903A1 (en) 1975-08-01
FR2256903B3 FR2256903B3 (en) 1977-09-30

Family

ID=9709678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500423A Granted FR2256903A1 (en) 1974-01-08 1975-01-08 Water purified by electroflotation - for rapid sedimentation and clean clarified water

Country Status (13)

Country Link
JP (1) JPS50106458A (en)
AU (1) AU7702674A (en)
BE (1) BE824201A (en)
BR (1) BR7500124A (en)
DE (1) DE2500016A1 (en)
DK (1) DK2675A (en)
FI (1) FI750024A (en)
FR (1) FR2256903A1 (en)
IT (1) IT1026251B (en)
LU (1) LU71591A1 (en)
NL (1) NL7500215A (en)
SE (1) SE7500169L (en)
ZA (1) ZA748238B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904127C1 (en) * 1989-01-17 1990-04-12 O & K Orenstein & Koppel Ag, 1000 Berlin, De Process and device for the biochemical purification of waste waters

Also Published As

Publication number Publication date
DK2675A (en) 1975-08-25
FR2256903B3 (en) 1977-09-30
DE2500016A1 (en) 1975-07-10
IT1026251B (en) 1978-09-20
JPS50106458A (en) 1975-08-21
SE7500169L (en) 1975-07-09
FI750024A (en) 1975-07-09
LU71591A1 (en) 1975-06-17
NL7500215A (en) 1975-07-10
BE824201A (en) 1975-05-02
BR7500124A (en) 1975-11-04
ZA748238B (en) 1976-01-28
AU7702674A (en) 1976-07-01

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Legal Events

Date Code Title Description
ST Notification of lapse