GB1549523A - Production of gas bubble population in liquids - Google Patents

Production of gas bubble population in liquids

Info

Publication number
GB1549523A
GB1549523A GB138877A GB138877A GB1549523A GB 1549523 A GB1549523 A GB 1549523A GB 138877 A GB138877 A GB 138877A GB 138877 A GB138877 A GB 138877A GB 1549523 A GB1549523 A GB 1549523A
Authority
GB
United Kingdom
Prior art keywords
water
liquids
production
gas bubble
bubble population
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
GB138877A
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.)
Compagnie Electro Mecanique SA
Original Assignee
Compagnie Electro Mecanique SA
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 Compagnie Electro Mecanique SA filed Critical Compagnie Electro Mecanique SA
Publication of GB1549523A publication Critical patent/GB1549523A/en
Expired 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
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1294—"Venturi" aeration means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • 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
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor
    • 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
    • B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
    • 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
    • B03D1/1431—Dissolved air flotation 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
    • B03D1/24—Pneumatic
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • 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)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Water Treatments (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

A venturi (2, 5) fed with water under pressure draws in ambient air and sends an emulsion into a volume (6) partly filled with water under pressure P1. A second ejector (9) is placed in the volume (6) and used to saturate water with air at the pressure P1. An outlet pipe (15) through which the saturated water comes out comprises a pressure drop (16) at which desorption bubbles are formed. The device is employed in flotation plants, for example for water purification. <IMAGE>
GB138877A 1976-01-16 1977-01-13 Production of gas bubble population in liquids Expired GB1549523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7601113A FR2338071A1 (en) 1976-01-16 1976-01-16 METHOD AND DEVICE FOR THE FORMATION OF GAS BUBBLES, FOR EXAMPLE WITH A VIEW OF FLOTATION

Publications (1)

Publication Number Publication Date
GB1549523A true GB1549523A (en) 1979-08-08

Family

ID=9168028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB138877A Expired GB1549523A (en) 1976-01-16 1977-01-13 Production of gas bubble population in liquids

Country Status (8)

Country Link
BE (1) BE850362A (en)
CH (1) CH609581A5 (en)
DE (1) DE2701702A1 (en)
FR (1) FR2338071A1 (en)
GB (1) GB1549523A (en)
IT (1) IT1067580B (en)
NL (1) NL7700350A (en)
SE (1) SE7700226L (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992003218A1 (en) * 1990-08-27 1992-03-05 The University Of Newcastle Research Associates Limited Aeration of liquids
WO1993010890A1 (en) * 1991-12-02 1993-06-10 Technological Resources Pty Limited A reactor
WO1994001210A1 (en) * 1992-07-09 1994-01-20 Technological Resources Pty. Limited A reactor
US5332100A (en) * 1986-09-25 1994-07-26 The University Of New Castle Research Associates Limited Of University Of New Castle Column flotation method
US5453203A (en) * 1992-10-22 1995-09-26 Toyo Dynam Co., Ltd. Process and apparatus for purifying low polluted water
US6565070B2 (en) 1991-12-02 2003-05-20 Robin John Batterham Reactor
US6998056B2 (en) * 2001-09-17 2006-02-14 Andritz Ag Process and device for aerating a liquid with gas

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101221C2 (en) * 1981-01-16 1983-09-22 J.M. Voith Gmbh, 7920 Heidenheim "Facility for foam flotation"
FR2550469B1 (en) * 1983-08-09 1985-10-04 Alsthom Atlantique MICROBUBBLE INJECTOR
FR2552343B1 (en) * 1983-09-27 1989-02-03 Rech Geolog Miniere FLOATING SEPARATION METHOD AND APPARATUS
DE4206206C2 (en) * 1992-02-28 1993-11-25 Voith Gmbh J M Process for cleaning the rejects from deinking flotation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5332100A (en) * 1986-09-25 1994-07-26 The University Of New Castle Research Associates Limited Of University Of New Castle Column flotation method
WO1992003218A1 (en) * 1990-08-27 1992-03-05 The University Of Newcastle Research Associates Limited Aeration of liquids
WO1993010890A1 (en) * 1991-12-02 1993-06-10 Technological Resources Pty Limited A reactor
AU664871B2 (en) * 1991-12-02 1995-12-07 Technological Resources Pty Limited A reactor
US6565070B2 (en) 1991-12-02 2003-05-20 Robin John Batterham Reactor
WO1994001210A1 (en) * 1992-07-09 1994-01-20 Technological Resources Pty. Limited A reactor
US5512217A (en) * 1992-07-09 1996-04-30 Technological Resources Pty. Limited Reactor and method of use
US5453203A (en) * 1992-10-22 1995-09-26 Toyo Dynam Co., Ltd. Process and apparatus for purifying low polluted water
US6998056B2 (en) * 2001-09-17 2006-02-14 Andritz Ag Process and device for aerating a liquid with gas

Also Published As

Publication number Publication date
DE2701702A1 (en) 1977-07-28
NL7700350A (en) 1977-07-19
CH609581A5 (en) 1979-03-15
FR2338071A1 (en) 1977-08-12
IT1067580B (en) 1985-03-16
SE7700226L (en) 1977-07-17
FR2338071B1 (en) 1979-07-13
BE850362A (en) 1977-05-02

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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