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GB1512225A - Apparatus for dissolving gas in liquid - Google Patents

Apparatus for dissolving gas in liquid

Info

Publication number
GB1512225A
GB1512225A GB4557175A GB4557175A GB1512225A GB 1512225 A GB1512225 A GB 1512225A GB 4557175 A GB4557175 A GB 4557175A GB 4557175 A GB4557175 A GB 4557175A GB 1512225 A GB1512225 A GB 1512225A
Authority
GB
United Kingdom
Prior art keywords
hood
oxygen
water
level
concentration
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
GB4557175A
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals 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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Priority to GB4557175A priority Critical patent/GB1512225A/en
Priority to ZA766482A priority patent/ZA766482B/en
Priority to FR7632801A priority patent/FR2329334A1/en
Publication of GB1512225A publication Critical patent/GB1512225A/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
    • C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
    • 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
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • 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
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/145—Protection against aerosols
    • 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
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • 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)
  • Biodiversity & Conservation Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Environmental Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

1512225 Fish breeding tanks AIR PRODUCTS & CHEMICALS INC 15 Oct 1976 [31 Oct 1975] 45571/75 Heading A1A [Also in Division Bl] An apparatus for dissolving oxygen in fish farming water, comprises a surface aerator 4 covered by a movable hood 3. In operation, air is first expelled from the hood through a vent 11, oxygen is then passed into the tank through a diffuser 8 via a motorised valve 10 which is closed after a preset time, a sensor 18 then generates a signal which is compared with a signal in a control box 16 to determine whether sufficient oxygen has dissolved in the water, if sufficient has not been dissolved, a motor 5 is actuated to rotate the surface aerator until the concentration of oxygen in the water reaches the desired level and then the motor is deactuated. If the desired level is not reached after a predetermined time, e.g. 50 minutes, the gaseous mixture in the hood is expelled through the vent 11. In a second embodiment (Fig. 2 not shown) the concentration of oxygen in the hood is measured by a sensor (21) within the hood and when the concentration falls below a predetermined level the hood is vented. In a third embodiment (Fig. 3 not shown) the concentration of oxygen in the hood is measured indirectly by a level sensor (22) within the hood and which causes the hood to be vented when the sensor touches the water. In a fourth embodiment (Fig. 4 not shown) the submersible motor is replaced by a motor supported above the tank and having a drive shaft (23) passing through a gas tight bearing in the hood. In a fifth embodiment the hood is provided with floats (25) and oxygen is fed through a pipe (26) directly into the hood. As oxygen is dissolved in the water the level of water within the hood 3 rises relative to the level of water outside the hood 3. When the oxygen concentration falls to a predetermined level a vacuum is applied to the vent 11 until the hood is flooded.
GB4557175A 1975-10-31 1975-10-31 Apparatus for dissolving gas in liquid Expired GB1512225A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4557175A GB1512225A (en) 1975-10-31 1975-10-31 Apparatus for dissolving gas in liquid
ZA766482A ZA766482B (en) 1975-10-31 1976-10-28 Apparatus for dissolving gas in liquid
FR7632801A FR2329334A1 (en) 1975-10-31 1976-10-29 APPARATUS FOR DISSOLVING A GAS IN A LIQUID AND PROCESS FOR FISH CULTIVATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4557175A GB1512225A (en) 1975-10-31 1975-10-31 Apparatus for dissolving gas in liquid

Publications (1)

Publication Number Publication Date
GB1512225A true GB1512225A (en) 1978-05-24

Family

ID=10437708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4557175A Expired GB1512225A (en) 1975-10-31 1975-10-31 Apparatus for dissolving gas in liquid

Country Status (3)

Country Link
FR (1) FR2329334A1 (en)
GB (1) GB1512225A (en)
ZA (1) ZA766482B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223148A1 (en) * 2001-01-10 2002-07-17 Bernardo Mauricio Bacicurinski Device for the injection and dissolution of oxygen in water effluents
CN101473805B (en) * 2008-11-10 2011-12-07 张磊 Pressure dissolution type oxygenation device
CN102511421A (en) * 2011-12-21 2012-06-27 浙江海洋学院普陀科学技术学院 Continuous incubation device
CN104957078A (en) * 2015-06-27 2015-10-07 陈伟强 Self-moving type underwater oxygenation device
CN106035201A (en) * 2016-07-29 2016-10-26 南安市荣华机械科技有限公司 An automatic air intake device, an air filter device, and an aeration device for fish tanks
US10022688B2 (en) * 2012-05-02 2018-07-17 Keeton Industries Combination submersible and floating aerator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4741869A (en) * 1986-09-12 1988-05-03 Dhv Raadgevend Ingenieursbureau B.V. Apparatus for contacting a gas with a liquid, in particular for aerating waste water
DE4120890A1 (en) * 1991-06-25 1993-01-07 Sanwa Seidlitz Gmbh DEVICE FOR ENRICHING WATER WITH OXYGEN, WHICH IS FURNISHED AND TRANSPORTED
CN113575499B (en) * 2019-11-25 2023-01-17 台州星氧电气有限公司 Motor assembly of aerator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3320928A (en) * 1965-10-23 1967-05-23 Smith Oscar Cornelius Apparatus and methods for aerating a body of water
US3547811A (en) * 1969-07-02 1970-12-15 Union Carbide Corp Cyclic oxygenation of bod-containing water
FR2056033A5 (en) * 1969-08-21 1971-05-14 Faivre Ets
DE2126821A1 (en) * 1970-06-15 1971-12-30 Firestone Tire & Rubber Co

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223148A1 (en) * 2001-01-10 2002-07-17 Bernardo Mauricio Bacicurinski Device for the injection and dissolution of oxygen in water effluents
CN101473805B (en) * 2008-11-10 2011-12-07 张磊 Pressure dissolution type oxygenation device
CN102511421A (en) * 2011-12-21 2012-06-27 浙江海洋学院普陀科学技术学院 Continuous incubation device
US10022688B2 (en) * 2012-05-02 2018-07-17 Keeton Industries Combination submersible and floating aerator
CN104957078A (en) * 2015-06-27 2015-10-07 陈伟强 Self-moving type underwater oxygenation device
CN106035201A (en) * 2016-07-29 2016-10-26 南安市荣华机械科技有限公司 An automatic air intake device, an air filter device, and an aeration device for fish tanks
CN106035201B (en) * 2016-07-29 2021-10-01 南安市荣华机械科技有限公司 An automatic air intake device, an air filter device, and a fish tank oxygenation device

Also Published As

Publication number Publication date
FR2329334A1 (en) 1977-05-27
ZA766482B (en) 1977-12-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee