FR2156376A2 - Aerator - Google Patents

Aerator

Info

Publication number
FR2156376A2
FR2156376A2 FR7236432A FR7236432A FR2156376A2 FR 2156376 A2 FR2156376 A2 FR 2156376A2 FR 7236432 A FR7236432 A FR 7236432A FR 7236432 A FR7236432 A FR 7236432A FR 2156376 A2 FR2156376 A2 FR 2156376A2
Authority
FR
France
Prior art keywords
partly
air
base
liquid
aerator
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.)
Pending
Application number
FR7236432A
Other languages
French (fr)
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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
Priority claimed from DE19691923446 external-priority patent/DE1923446A1/en
Priority claimed from DE19712151205 external-priority patent/DE2151205A1/en
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of FR2156376A2 publication Critical patent/FR2156376A2/en
Pending 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
    • B01F23/40—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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • B01F25/211—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being surrounded by guiding tubes
    • 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
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (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)
  • Nozzles (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

The air is fed into the base, or in a sump below the base, of a relatively deep tank so that it has maximum dwell time in contact with the sewage. To overcome the static pressure head of the liquid, the air is pressurised partly by direct pumping and partly by the action of a jet pump using recirculated liquid as propellant.
FR7236432A 1969-05-08 1972-10-13 Aerator Pending FR2156376A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19691923446 DE1923446A1 (en) 1969-05-08 1969-05-08 Method and device for ventilating liquids in a container
DE19712151205 DE2151205A1 (en) 1971-10-14 1971-10-14 METHOD AND DEVICE FOR VENTILATING LIQUIDS IN A CONTAINER

Publications (1)

Publication Number Publication Date
FR2156376A2 true FR2156376A2 (en) 1973-05-25

Family

ID=32094480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7236432A Pending FR2156376A2 (en) 1969-05-08 1972-10-13 Aerator

Country Status (1)

Country Link
FR (1) FR2156376A2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007489A1 (en) * 1978-07-08 1980-02-06 Heinz Prof. Dr.-Ing. Blenke Process and apparatus for carrying out (bio)chemical reactions in a gas/liquid-system
EP0010571A1 (en) * 1978-11-02 1980-05-14 Heinz Prof. Dr.-Ing. Blenke Process and apparatus for carrying out (bio)chemical reactions and unit operations in fluid systems
EP0054814A1 (en) * 1980-12-13 1982-06-30 Hoechst Aktiengesellschaft Process to enhance the distribution of the gases in air-lift loop reactors
FR2497227A1 (en) * 1980-12-31 1982-07-02 Tech Realisa Indles Cales Et Fermentation installation for prodn. of aerobic microorganisms - has recycling and aeration circuit through which culture medium is pumped intermittently
EP0216702A2 (en) * 1985-09-24 1987-04-01 Suntory Limited Method and plant for tartars separation
US4819552A (en) * 1987-04-28 1989-04-11 Suntory Limited Apparatus for continuous tartar separation
EP0969084A1 (en) * 1998-06-04 2000-01-05 Deutsche Babcock Anlagen Gmbh Reactor for the fermentation of biogenous material
WO2007112460A1 (en) * 2006-03-28 2007-10-04 Mathew Benedict Carlisle Aeration system for tank

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007489A1 (en) * 1978-07-08 1980-02-06 Heinz Prof. Dr.-Ing. Blenke Process and apparatus for carrying out (bio)chemical reactions in a gas/liquid-system
EP0010571A1 (en) * 1978-11-02 1980-05-14 Heinz Prof. Dr.-Ing. Blenke Process and apparatus for carrying out (bio)chemical reactions and unit operations in fluid systems
EP0054814A1 (en) * 1980-12-13 1982-06-30 Hoechst Aktiengesellschaft Process to enhance the distribution of the gases in air-lift loop reactors
FR2497227A1 (en) * 1980-12-31 1982-07-02 Tech Realisa Indles Cales Et Fermentation installation for prodn. of aerobic microorganisms - has recycling and aeration circuit through which culture medium is pumped intermittently
EP0216702A2 (en) * 1985-09-24 1987-04-01 Suntory Limited Method and plant for tartars separation
EP0216702A3 (en) * 1985-09-24 1987-06-03 Suntory Limited Method and plant for tartars separation
US4798131A (en) * 1985-09-24 1989-01-17 Suntory Limited Method and apparatus for tartars separation
US4819552A (en) * 1987-04-28 1989-04-11 Suntory Limited Apparatus for continuous tartar separation
EP0969084A1 (en) * 1998-06-04 2000-01-05 Deutsche Babcock Anlagen Gmbh Reactor for the fermentation of biogenous material
WO2007112460A1 (en) * 2006-03-28 2007-10-04 Mathew Benedict Carlisle Aeration system for tank
AP2604A (en) * 2006-03-28 2013-02-27 Mathew Benedict Carlisle Aeration system for tank

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