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GB1469049A - Method of and apparatus for the dissolution of gaseous oxygen into a liquid - Google Patents

Method of and apparatus for the dissolution of gaseous oxygen into a liquid

Info

Publication number
GB1469049A
GB1469049A GB1437275A GB1437275A GB1469049A GB 1469049 A GB1469049 A GB 1469049A GB 1437275 A GB1437275 A GB 1437275A GB 1437275 A GB1437275 A GB 1437275A GB 1469049 A GB1469049 A GB 1469049A
Authority
GB
United Kingdom
Prior art keywords
liquid
pump
oxygen
discharge
april
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
GB1437275A
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.)
Houdaille Industries Inc
Original Assignee
Houdaille Industries Inc
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 Houdaille Industries Inc filed Critical Houdaille Industries Inc
Publication of GB1469049A publication Critical patent/GB1469049A/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
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
    • 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)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

1469049 Aerating liquids HOUDAILLE INDUSTRIES INC 8 April 1975 [15 April 1974] 14372/75 Heading B1C In a method of and apparatus for dissolving oxygen in a liquid, liquid is continually removed from a body thereof and circulated through external hydraulic circuitry in which the pressure of the liquid is raised and oxygen introduced thereto, the residence time of the pressurised oxygenated liquid in the circuitry being at least about five seconds, and the oxygenated liquid is then discharged into the body of liquid through a discharge nozzle in which it undergoes a pressure drop of approximately 5 to 12 psia. In an activated sludge process for treating liquid waste, liquid is withdrawn from a tank 12 to a pump 19 and part of the pump discharge is passed back to the suction side of the pump through an eductor 31 in which gaseous oxygen or oxygen rich gas is introduced to the liquid, the main discharge of the pump passing through line 17 to a liquid nozzle 15 for introduction into the body of liquid as a high velocity jet. Secondary liquid entrainment is caused by nozzles 26 shrouding the nozzles 15.
GB1437275A 1974-04-15 1975-04-08 Method of and apparatus for the dissolution of gaseous oxygen into a liquid Expired GB1469049A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46101474A 1974-04-15 1974-04-15

Publications (1)

Publication Number Publication Date
GB1469049A true GB1469049A (en) 1977-03-30

Family

ID=23830898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1437275A Expired GB1469049A (en) 1974-04-15 1975-04-08 Method of and apparatus for the dissolution of gaseous oxygen into a liquid

Country Status (5)

Country Link
JP (1) JPS5328257B2 (en)
CA (1) CA1042569A (en)
DE (1) DE2516371A1 (en)
GB (1) GB1469049A (en)
ZA (1) ZA752273B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153245A (en) * 1984-01-24 1985-08-21 Boc Group Plc Dissolving gas in liquid
WO1987005284A1 (en) * 1986-03-04 1987-09-11 Purac Ab A method for biologically treating liquid with oxidizing medium, and apparatus for carrying out the method

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT351464B (en) * 1975-10-31 1979-07-25 Blum Albert DEVICE FOR THE INTRODUCTION OF GASES, IN PARTICULAR AIR, IN LIQUIDS
DE2634494C2 (en) * 1976-07-31 1983-04-14 Bayer Ag, 5090 Leverkusen New injectors for liquid gassing
DE2713210A1 (en) * 1977-03-25 1978-10-05 Albert Blum Submersible aerator for fluids e.g. sewage - with pump and blower driven at adjustable speed ratio
US4139579A (en) * 1977-07-15 1979-02-13 Albert Blum Apparatus for introducing air into a liquid including a liquid pump mounted within an aerator pressure chamber
US4152259A (en) * 1977-12-22 1979-05-01 Clevepak Corporation Backflushing method
JPS54170665U (en) * 1978-05-23 1979-12-03
JPS55114394A (en) * 1979-02-24 1980-09-03 Eiichi Sugiura Water suction pipe air intake type vapor-liquid mixing pressure aerator for polluted water treatment
JPS5615831A (en) * 1979-07-18 1981-02-16 Nishihara Environ Sanit Res Corp Aerator
JPH01139196A (en) * 1987-11-24 1989-05-31 Kazuaki Yokota Ejector structure in water treating device
JP7299591B2 (en) * 2019-10-16 2023-06-28 住友金属鉱山株式会社 Method of operating the reactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153245A (en) * 1984-01-24 1985-08-21 Boc Group Plc Dissolving gas in liquid
WO1987005284A1 (en) * 1986-03-04 1987-09-11 Purac Ab A method for biologically treating liquid with oxidizing medium, and apparatus for carrying out the method

Also Published As

Publication number Publication date
ZA752273B (en) 1976-03-31
CA1042569A (en) 1978-11-14
JPS50133974A (en) 1975-10-23
JPS5328257B2 (en) 1978-08-14
DE2516371A1 (en) 1975-10-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee