FR2207743A2 - Flotation purifier for liquids - in which foam is broken at bowl around turbine - Google Patents

Flotation purifier for liquids - in which foam is broken at bowl around turbine

Info

Publication number
FR2207743A2
FR2207743A2 FR7242331A FR7242331A FR2207743A2 FR 2207743 A2 FR2207743 A2 FR 2207743A2 FR 7242331 A FR7242331 A FR 7242331A FR 7242331 A FR7242331 A FR 7242331A FR 2207743 A2 FR2207743 A2 FR 2207743A2
Authority
FR
France
Prior art keywords
liquids
foam
broken
flotation
bowl around
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
FR7242331A
Other languages
French (fr)
Other versions
FR2207743B2 (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.)
GAU RENE FR
Original Assignee
GAU RENE FR
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 GAU RENE FR filed Critical GAU RENE FR
Priority to FR7242331A priority Critical patent/FR2207743A2/en
Publication of FR2207743A2 publication Critical patent/FR2207743A2/en
Application granted granted Critical
Publication of FR2207743B2 publication Critical patent/FR2207743B2/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/16—Flotation machines with impellers; Subaeration machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1493—Flotation machines with means for establishing a specified flow pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/24—Pneumatic
    • B03D1/245—Injecting gas through perforated or porous area
    • 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
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
    • C02F3/207—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors with axial thrust propellers
    • 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)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)

Abstract

Bubbles produced in a flotation purifier, or pref. at inlets e.g. at liquid input duct, where shear leads to disruption; are aggregated by contact with a bowl around a turbine, so that they rise up alongside shaft, and break at surface, thus avoiding entrainment in purified liquid. Bubbles are small, size being independent of air inlet dia. thus flotation efficiency, and separation of suspended solids is enhanced.
FR7242331A 1972-11-29 1972-11-29 Flotation purifier for liquids - in which foam is broken at bowl around turbine Granted FR2207743A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7242331A FR2207743A2 (en) 1972-11-29 1972-11-29 Flotation purifier for liquids - in which foam is broken at bowl around turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7242331A FR2207743A2 (en) 1972-11-29 1972-11-29 Flotation purifier for liquids - in which foam is broken at bowl around turbine

Publications (2)

Publication Number Publication Date
FR2207743A2 true FR2207743A2 (en) 1974-06-21
FR2207743B2 FR2207743B2 (en) 1979-02-02

Family

ID=9107886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7242331A Granted FR2207743A2 (en) 1972-11-29 1972-11-29 Flotation purifier for liquids - in which foam is broken at bowl around turbine

Country Status (1)

Country Link
FR (1) FR2207743A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240458A2 (en) * 1986-03-24 1987-10-07 Eltech Systems Corporation Methods and apparatus for treating a mixture of particles and fluids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240458A2 (en) * 1986-03-24 1987-10-07 Eltech Systems Corporation Methods and apparatus for treating a mixture of particles and fluids
EP0240458A3 (en) * 1986-03-24 1988-03-30 Eltech Systems Corporation Methods and apparatus for treating a mixture of particles and fluids

Also Published As

Publication number Publication date
FR2207743B2 (en) 1979-02-02

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