FR2336170A2 - Injection of gas into liquid - through small dia flexible tubes which move as gas is being injected - Google Patents

Injection of gas into liquid - through small dia flexible tubes which move as gas is being injected

Info

Publication number
FR2336170A2
FR2336170A2 FR7539259A FR7539259A FR2336170A2 FR 2336170 A2 FR2336170 A2 FR 2336170A2 FR 7539259 A FR7539259 A FR 7539259A FR 7539259 A FR7539259 A FR 7539259A FR 2336170 A2 FR2336170 A2 FR 2336170A2
Authority
FR
France
Prior art keywords
gas
liq
tubes
bubbles
dia
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
FR7539259A
Other languages
French (fr)
Other versions
FR2336170B2 (en
Inventor
Francois Danel
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.)
Cegelec SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Priority to FR7539259A priority Critical patent/FR2336170A2/en
Priority to US05/655,901 priority patent/US4215082A/en
Priority to DE19762606306 priority patent/DE2606306A1/en
Priority to IT2040076A priority patent/IT1058857B/en
Priority to FI760446A priority patent/FI760446A/fi
Priority to CA246,322A priority patent/CA1044696A/en
Priority to PT6484176A priority patent/PT64841B/en
Priority to ES445510A priority patent/ES445510A1/en
Publication of FR2336170A2 publication Critical patent/FR2336170A2/en
Application granted granted Critical
Publication of FR2336170B2 publication Critical patent/FR2336170B2/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
    • C02F3/20—Activated sludge processes using diffusers
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • B01F23/23114—Mounting the bubbling devices or the diffusers characterised by the way in which the different elements of the bubbling installation are mounted
    • B01F23/231142—Mounting the gas transporting elements, i.e. connections between conduits
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • B01F23/23115—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle
    • B01F23/231152—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle the bubbling devices being supported, e.g. on cables or laying on the bottom
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • B01F23/23115—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle
    • B01F23/231154—Mounting the bubbling devices or the diffusers characterised by the way in which the bubbling devices are mounted within the receptacle the bubbling devices being provided with ballast to keep them floating under the surface, i.e. when the bubbling devices are lighter than the liquid
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23123—Diffusers consisting of rigid porous or perforated material
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23124—Diffusers consisting of flexible porous or perforated material, e.g. fabric
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231265—Diffusers characterised by the shape of the diffuser element being tubes, tubular elements, cylindrical elements or set of tubes
    • 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
    • B01F25/30—Injector mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00—Aeration of stretches of water
    • 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
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/503—Floating mixing devices
    • 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)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

Gas is fed into a main conduit which is partly or totally immersed in the liq. into which the gas is to be injected. That part of the conduit immersed in the liq. has many tubes of small inside dia., i.e. 2 mm and length >=20 times the dia. projecting from its surface into the liq. The gas passes up these tubes and is released at the tube ends as fine bubbles, the ends of the tubes moving in the liq. under the influence of the release of the bubbles and the currents in the liqs. These small injection tubes can be flexible or rigid and attached to the main conduit by a flexible connection. The main gas carrying pipe can be circular oblong or any other shape, or can be in the form of an annular conduit around walls or bottom of a vessel with the fine tubes projecting into the liq. Another alternative is to have the fine gas outlet tube surrounded by another tube up which a liq. is passed to cause the bubbles to detach from the gas tube. Used for injecting gases into liqs., e.g. in fermentation and for biological control of the oxygen requirement in polluted waters. Allows great uniformity of the injection of bubbles of the desired dia.
FR7539259A 1975-02-25 1975-12-22 Injection of gas into liquid - through small dia flexible tubes which move as gas is being injected Granted FR2336170A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7539259A FR2336170A2 (en) 1975-12-22 1975-12-22 Injection of gas into liquid - through small dia flexible tubes which move as gas is being injected
US05/655,901 US4215082A (en) 1975-02-25 1976-02-06 Device for injecting a gas into a liquid
DE19762606306 DE2606306A1 (en) 1975-02-25 1976-02-17 DEVICE FOR INJECTING A GAS INTO A LIQUID
IT2040076A IT1058857B (en) 1975-02-25 1976-02-20 INJECTION DEVICE OF A GAS IN A LIQUID
FI760446A FI760446A (en) 1975-02-25 1976-02-23
CA246,322A CA1044696A (en) 1975-02-25 1976-02-23 Device for injecting gas in a liquid_
PT6484176A PT64841B (en) 1975-02-25 1976-02-24 DEVICE FOR INJECTING A GAS INTO A LIQUID
ES445510A ES445510A1 (en) 1975-02-25 1976-02-25 Device for injecting a gas into a liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7539259A FR2336170A2 (en) 1975-12-22 1975-12-22 Injection of gas into liquid - through small dia flexible tubes which move as gas is being injected

Publications (2)

Publication Number Publication Date
FR2336170A2 true FR2336170A2 (en) 1977-07-22
FR2336170B2 FR2336170B2 (en) 1980-06-13

Family

ID=9164013

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7539259A Granted FR2336170A2 (en) 1975-02-25 1975-12-22 Injection of gas into liquid - through small dia flexible tubes which move as gas is being injected

Country Status (1)

Country Link
FR (1) FR2336170A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114014509A (en) * 2021-11-08 2022-02-08 常州大学 Multifunctional livestock and poultry manure energy regeneration pretreatment composite system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114014509A (en) * 2021-11-08 2022-02-08 常州大学 Multifunctional livestock and poultry manure energy regeneration pretreatment composite system

Also Published As

Publication number Publication date
FR2336170B2 (en) 1980-06-13

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