FR2421671A1 - Generator of bubbles in liq. medium - with nozzle feeding liq. stream sweeping zone between nozzle and perforated gas emission surface, maximising distribution and dispersion - Google Patents

Generator of bubbles in liq. medium - with nozzle feeding liq. stream sweeping zone between nozzle and perforated gas emission surface, maximising distribution and dispersion

Info

Publication number
FR2421671A1
FR2421671A1 FR7810040A FR7810040A FR2421671A1 FR 2421671 A1 FR2421671 A1 FR 2421671A1 FR 7810040 A FR7810040 A FR 7810040A FR 7810040 A FR7810040 A FR 7810040A FR 2421671 A1 FR2421671 A1 FR 2421671A1
Authority
FR
France
Prior art keywords
liq
nozzle
generator
bubbles
distribution
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
FR7810040A
Other languages
French (fr)
Other versions
FR2421671B1 (en
Inventor
Gilles Combes
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.)
Alsthom Atlantique SA
Original Assignee
Alsthom Atlantique 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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Priority to FR7810040A priority Critical patent/FR2421671A1/en
Publication of FR2421671A1 publication Critical patent/FR2421671A1/en
Application granted granted Critical
Publication of FR2421671B1 publication Critical patent/FR2421671B1/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
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • 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

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

Generator of bubbles in a liq. medium comprises a component connected to a source of gas having a face emitting the gas through a large number of small perforations and a device feeding a liq. stream sweeping the zone of emission of the gas at high speed, >=1 m/s. Bubble generator is used in the field of chemical engineering and in the treatment of waste waters. Appts. ensures better distribution and better diffusion of the bubble in the body of the liq. in which it is immersed than existing bubble generators, and uses little energy.
FR7810040A 1978-04-05 1978-04-05 Generator of bubbles in liq. medium - with nozzle feeding liq. stream sweeping zone between nozzle and perforated gas emission surface, maximising distribution and dispersion Granted FR2421671A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7810040A FR2421671A1 (en) 1978-04-05 1978-04-05 Generator of bubbles in liq. medium - with nozzle feeding liq. stream sweeping zone between nozzle and perforated gas emission surface, maximising distribution and dispersion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810040A FR2421671A1 (en) 1978-04-05 1978-04-05 Generator of bubbles in liq. medium - with nozzle feeding liq. stream sweeping zone between nozzle and perforated gas emission surface, maximising distribution and dispersion

Publications (2)

Publication Number Publication Date
FR2421671A1 true FR2421671A1 (en) 1979-11-02
FR2421671B1 FR2421671B1 (en) 1981-12-11

Family

ID=9206699

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810040A Granted FR2421671A1 (en) 1978-04-05 1978-04-05 Generator of bubbles in liq. medium - with nozzle feeding liq. stream sweeping zone between nozzle and perforated gas emission surface, maximising distribution and dispersion

Country Status (1)

Country Link
FR (1) FR2421671A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250316A1 (en) * 1986-06-18 1987-12-23 OTV (OMNIUM de TRAITEMENTS et de VALORISATION) Gas transfer and flotation process for the treatment of water

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545731A (en) * 1966-11-08 1970-12-08 Gen Dynamics Corp Apparatus for producing bubbles of very small,microscopic size
US3927152A (en) * 1971-03-12 1975-12-16 Fmc Corp Method and apparatus for bubble shearing
FR2330460A1 (en) * 1975-11-04 1977-06-03 Mitsubishi Precision Co Ltd APPARATUS FOR THE GENERATION OF BUBBLES
DE2618369A1 (en) * 1976-04-27 1977-11-10 Theodor Wilcke Aerator for biological sewage treatment - directing water jet across air exit pores for fine bubble distribution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545731A (en) * 1966-11-08 1970-12-08 Gen Dynamics Corp Apparatus for producing bubbles of very small,microscopic size
US3927152A (en) * 1971-03-12 1975-12-16 Fmc Corp Method and apparatus for bubble shearing
FR2330460A1 (en) * 1975-11-04 1977-06-03 Mitsubishi Precision Co Ltd APPARATUS FOR THE GENERATION OF BUBBLES
DE2618369A1 (en) * 1976-04-27 1977-11-10 Theodor Wilcke Aerator for biological sewage treatment - directing water jet across air exit pores for fine bubble distribution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250316A1 (en) * 1986-06-18 1987-12-23 OTV (OMNIUM de TRAITEMENTS et de VALORISATION) Gas transfer and flotation process for the treatment of water
FR2600323A1 (en) * 1986-06-18 1987-12-24 Omnium Traitement Valorisa DEVICE FOR TRANSFERRING GAS AND FLOTATION IN THE TREATMENT OF WATER TO BE TREATED

Also Published As

Publication number Publication date
FR2421671B1 (en) 1981-12-11

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Legal Events

Date Code Title Description
ST Notification of lapse