FR2257327B1 - - Google Patents

Info

Publication number
FR2257327B1
FR2257327B1 FR7400776A FR7400776A FR2257327B1 FR 2257327 B1 FR2257327 B1 FR 2257327B1 FR 7400776 A FR7400776 A FR 7400776A FR 7400776 A FR7400776 A FR 7400776A FR 2257327 B1 FR2257327 B1 FR 2257327B1
Authority
FR
France
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
FR7400776A
Other languages
French (fr)
Other versions
FR2257327A1 (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/fr
Publication of FR2257327A1 publication Critical patent/FR2257327A1/fr
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)
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 FR2257327A1 (en) 1975-08-08
FR2257327B1 true FR2257327B1 (enrdf_load_stackoverflow) 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 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370151A (en) 1980-03-26 1983-01-25 Hoechst Aktiengesellschaft Process and apparatus for gassing liquids
US4377395A (en) 1980-03-26 1983-03-22 Hoechst Aktiengesellschaft Process and apparatus for gassing liquids

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976575A (en) * 1975-07-28 1976-08-24 Canton Textile Mills, Inc. Liquid aeration device
US4042510A (en) * 1976-09-02 1977-08-16 Canton Textile Mills, Inc. Liquid aeration device
ZA793185B (en) * 1978-08-30 1981-02-25 Dorr Oliver Inc Apparatus and process for dissolution of gases in liquid
JPS6090100A (ja) * 1983-09-29 1985-05-21 エアー．プロダクツ．アンド．ケミカルス．インコーポレーテツド 生物学的廃水処理用清澄器内の汚泥浮上を回避する方法
CA1321135C (en) * 1988-09-27 1993-08-10 Union Carbide Corporation Process for dissolving a gas in a liquid
FR2782022B1 (fr) * 1998-08-07 2000-11-03 Aquinove Appareil de dissolution de gaz dans un liquide
FR2836163B1 (fr) * 2002-02-18 2004-05-07 Air Liquide Procede d'ozonation d'une phase liquide contenant des particules solides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370151A (en) 1980-03-26 1983-01-25 Hoechst Aktiengesellschaft Process and apparatus for gassing liquids
US4377395A (en) 1980-03-26 1983-03-22 Hoechst Aktiengesellschaft Process and apparatus for gassing liquids

Also Published As

Publication number Publication date
FR2257327A1 (en) 1975-08-08

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Legal Events

Date Code Title Description
ST Notification of lapse