FR2257327A1 - Liq-gas exchange process for water treatment - using ozonised air bubbles to strike interface in con-current flow - Google Patents

Liq-gas exchange process for water treatment - using ozonised air bubbles to strike interface in con-current flow

Info

Publication number
FR2257327A1
FR2257327A1 FR7400776A FR7400776A FR2257327A1 FR 2257327 A1 FR2257327 A1 FR 2257327A1 FR 7400776 A FR7400776 A FR 7400776A FR 7400776 A FR7400776 A FR 7400776A FR 2257327 A1 FR2257327 A1 FR 2257327A1
Authority
FR
France
Prior art keywords
liq
tube
exchange process
gas exchange
gas
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
FR7400776A
Other languages
French (fr)
Other versions
FR2257327B1 (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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7400776A priority Critical patent/FR2257327A1/en
Publication of FR2257327A1 publication Critical patent/FR2257327A1/en
Application granted granted Critical
Publication of FR2257327B1 publication Critical patent/FR2257327B1/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
    • C02F3/1278—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
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • 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
    • C02F3/22—Activated sludge processes using circulation pipes
    • C02F3/226—"Deep shaft" processes
    • 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
    • C02F3/24—Activated sludge processes using free-fall aeration or spraying
    • 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)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

Liq-gas exchange process, e.g. for use in the treatment of water by means of ozone, comprises a vertical tube pierced with holes in its upper portion. This tube dips into a recipient (II) which is fed with water by a pipe and a pumping system. The liq. in the tube contains a multiplicity of bubbles created by the impact of a jet of liq. passing through the holes and striking the liq-gas interface. The tube dips into a de-gassing recipient (I) which is fitted with a pipe for liberating the gas deflected by the plate, from which it is re-cycled to (II). A tube connects (I) to (III); the latter is supplied with a tube for evacuating the treated liq. The gaseous press. in (III) is regulated by a valve. Operation of the appts. is extremely simple and there are no moving parts. There is no need for bubbling devices such as perforated plates and compressors while the used gas can be recycled without the expenditure of energy.
FR7400776A 1974-01-10 1974-01-10 Liq-gas exchange process for water treatment - using ozonised air bubbles to strike interface in con-current flow Granted FR2257327A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7400776A FR2257327A1 (en) 1974-01-10 1974-01-10 Liq-gas exchange process for water treatment - using ozonised air bubbles to strike interface in con-current flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7400776A FR2257327A1 (en) 1974-01-10 1974-01-10 Liq-gas exchange process for water treatment - using ozonised air bubbles to strike interface in con-current flow

Publications (2)

Publication Number Publication Date
FR2257327A1 true FR2257327A1 (en) 1975-08-08
FR2257327B1 FR2257327B1 (en) 1976-10-08

Family

ID=9133302

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400776A Granted FR2257327A1 (en) 1974-01-10 1974-01-10 Liq-gas exchange process for water treatment - using ozonised air bubbles to strike interface in con-current flow

Country Status (1)

Country Link
FR (1) FR2257327A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319409A1 (en) * 1975-07-28 1977-02-25 Canton Textile Mills LIQUID AERATION DEVICE
FR2363367A1 (en) * 1976-09-02 1978-03-31 Canton Textile Mills LIQUID AERATION DEVICE
EP0008856A1 (en) * 1978-08-30 1980-03-19 Dorr-Oliver Incorporated Apparatus and process for dissolution of gases in liquid
EP0036600A1 (en) * 1980-03-26 1981-09-30 Hoechst Aktiengesellschaft Method and device for gasifying liquids
EP0036598B1 (en) * 1980-03-26 1983-10-19 Hoechst Aktiengesellschaft Method and device for gasifying liquids
EP0138118A2 (en) * 1983-09-29 1985-04-24 Air Products And Chemicals, Inc. Avoidance of rising sludge in biological wastewater treatment clarifiers
EP0362431A1 (en) * 1988-09-27 1990-04-11 Praxair Technology, Inc. Improved process for dissolving a gas in a liquid
FR2782022A1 (en) * 1998-08-07 2000-02-11 Aquinove Apparatus for dissolving a gas in a liquid comprises pump for extracting fraction of liquid and re-injecting it in form of jet under pressure to form bubbles
FR2836163A1 (en) * 2002-02-18 2003-08-22 Air Liquide Ozone treatment procedure for liquid phase of substance such as used paper, is carried out in a tubular bi-phase contactor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319409A1 (en) * 1975-07-28 1977-02-25 Canton Textile Mills LIQUID AERATION DEVICE
FR2363367A1 (en) * 1976-09-02 1978-03-31 Canton Textile Mills LIQUID AERATION DEVICE
EP0008856A1 (en) * 1978-08-30 1980-03-19 Dorr-Oliver Incorporated Apparatus and process for dissolution of gases in liquid
DE2934483A1 (en) * 1978-08-30 1980-03-20 Dorr Oliver Inc METHOD FOR SOLVING GASES IN LIQUIDS, AND DEVICE FOR CARRYING OUT THE METHOD
EP0036600A1 (en) * 1980-03-26 1981-09-30 Hoechst Aktiengesellschaft Method and device for gasifying liquids
EP0036598B1 (en) * 1980-03-26 1983-10-19 Hoechst Aktiengesellschaft Method and device for gasifying liquids
EP0138118A2 (en) * 1983-09-29 1985-04-24 Air Products And Chemicals, Inc. Avoidance of rising sludge in biological wastewater treatment clarifiers
EP0138118A3 (en) * 1983-09-29 1986-08-13 Air Products And Chemicals, Inc. Avoidance of rising sludge in biological wastewater treatment clarifiers
EP0362431A1 (en) * 1988-09-27 1990-04-11 Praxair Technology, Inc. Improved process for dissolving a gas in a liquid
EP0472223A1 (en) * 1988-09-27 1992-02-26 Praxair Technology, Inc. Improved process for dissolving a gas in a liquid
FR2782022A1 (en) * 1998-08-07 2000-02-11 Aquinove Apparatus for dissolving a gas in a liquid comprises pump for extracting fraction of liquid and re-injecting it in form of jet under pressure to form bubbles
FR2836163A1 (en) * 2002-02-18 2003-08-22 Air Liquide Ozone treatment procedure for liquid phase of substance such as used paper, is carried out in a tubular bi-phase contactor
WO2003070648A2 (en) * 2002-02-18 2003-08-28 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for ozone treatment of a liquid phase containing solid particles
WO2003070648A3 (en) * 2002-02-18 2004-03-25 Air Liquide Method for ozone treatment of a liquid phase containing solid particles

Also Published As

Publication number Publication date
FR2257327B1 (en) 1976-10-08

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Legal Events

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