DE2712465A1 - Generation of small gas bubbles in a liquid - Google Patents

Generation of small gas bubbles in a liquid

Info

Publication number
DE2712465A1
DE2712465A1 DE19772712465 DE2712465A DE2712465A1 DE 2712465 A1 DE2712465 A1 DE 2712465A1 DE 19772712465 DE19772712465 DE 19772712465 DE 2712465 A DE2712465 A DE 2712465A DE 2712465 A1 DE2712465 A1 DE 2712465A1
Authority
DE
Germany
Prior art keywords
generation
liquid
gas bubbles
small gas
small
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.)
Withdrawn
Application number
DE19772712465
Other languages
German (de)
Inventor
John Jameson Graeme
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.)
National Research Development Corp UK
National Research Development Corp of India
Original Assignee
National Research Development Corp UK
National Research Development Corp of India
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 to GB11852/76A priority Critical patent/GB1580211A/en
Application filed by National Research Development Corp UK, National Research Development Corp of India filed Critical National Research Development Corp UK
Publication of DE2712465A1 publication Critical patent/DE2712465A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/20Activated sludge processes using diffusers
    • C02F3/205Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/0446Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using flow mixing means for introducing the gas, e.g. in conduits or in vessels
    • B01F3/04503Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using flow mixing means for introducing the gas, e.g. in conduits or in vessels by circulating the flow in guiding constructions or conduits
    • B01F3/0451Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using flow mixing means for introducing the gas, e.g. in conduits or in vessels by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04531Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F3/04539Introducing a gas or vapour into a liquid medium, e.g. 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/10Circulation mixers, e.g. at least part of the mixture being discharged from, and reintroduced into, a receptacle, e.g. with rotary stirrer
    • B01F5/106Circulation mixers, e.g. at least part of the mixture being discharged from, and reintroduced into, a receptacle, e.g. with rotary stirrer the mixture being discharged from and reintroduced into a receptacle through a recirculation tube into which an additional component is introduced
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F7/00Mixers with rotary stirring devices in fixed receptacles, i.e. movement of the receptacle not being meant to effect the mixing; Kneaders
    • B01F7/00008Stirrers, i.e. rotary stirring devices
    • B01F7/00233Configuration of the rotating mixing element
    • B01F7/00341Propellers, i.e. stirrers having an axial outflow, e.g. of the ship or aircraft propeller type or having means on the propeller to guide the flow
    • B01F7/00366Propellers, i.e. stirrers having an axial outflow, e.g. of the ship or aircraft propeller type or having means on the propeller to guide the flow the impeller being of airfoil, aerofoil type
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/20Activated sludge processes using diffusers
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/02Stirrer or mobile mixing elements
    • C12M27/04Stirrer or mobile mixing elements with introduction of gas through the stirrer or mixing element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04531Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F3/04539Introducing a gas or vapour into a liquid medium, e.g. 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
    • B01F2003/04546Introducing a gas or vapour into a liquid medium, e.g. 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 through a hollow stirrer axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04531Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F3/04539Introducing a gas or vapour into a liquid medium, e.g. 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
    • B01F2003/04567Introducing a gas or vapour into a liquid medium, e.g. 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 through a hollow stirrer element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F7/00Mixers with rotary stirring devices in fixed receptacles, i.e. movement of the receptacle not being meant to effect the mixing; Kneaders
    • B01F7/00008Stirrers, i.e. rotary stirring devices
    • B01F7/00233Configuration of the rotating mixing element
    • B01F7/0025Configuration of the rotating mixing element with arms, paddles, vanes or blades
    • B01F7/00291Configuration of the rotating mixing element with arms, paddles, vanes or blades having vanes or blades, e.g. provided with orifices, extending parallel or oblique to the stirrer axis
    • B01F7/003Configuration of the rotating mixing element with arms, paddles, vanes or blades having vanes or blades, e.g. provided with orifices, extending parallel or oblique to the stirrer axis having holes in the surface
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage
    • Y02W10/15Aerobic processes
DE19772712465 1976-03-24 1977-03-22 Generation of small gas bubbles in a liquid Withdrawn DE2712465A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11852/76A GB1580211A (en) 1976-03-24 1976-03-24 Generation of small gas bubbles within liquid

Publications (1)

Publication Number Publication Date
DE2712465A1 true DE2712465A1 (en) 1977-10-06

Family

ID=9993885

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772712465 Withdrawn DE2712465A1 (en) 1976-03-24 1977-03-22 Generation of small gas bubbles in a liquid

Country Status (3)

Country Link
JP (1) JPS52146049A (en)
DE (1) DE2712465A1 (en)
GB (1) GB1580211A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015050A1 (en) * 1979-01-29 1980-09-03 General Signal Corporation Fluids mixing apparatus
DE3313081A1 (en) * 1983-04-12 1984-10-18 Peter Prof Dr Pohl Combined agitation, aeration and aspiration system for the mass culture of microorganisms, cell cultures and the like
WO1987000078A1 (en) * 1985-06-24 1987-01-15 Danfoil Aps Atomizer
DE3826589A1 (en) * 1988-08-04 1990-02-08 Siemens Ag Cell culture fermenter
DE4228172C1 (en) * 1992-08-25 1993-11-25 Bruno Gruber Method and apparatus for distributing a gas in a liquid
US5300261A (en) * 1992-11-12 1994-04-05 Richard Von Berg Liquid aerating apparatus

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043104A (en) * 1987-11-04 1991-08-27 Barrett Haentjens & Co. Apparatus for gas absorption in a liquid
GB9007896D0 (en) * 1990-04-06 1990-06-06 Atomic Energy Authority Uk Mixing device
DE4135878A1 (en) * 1991-10-31 1993-05-06 Helmut Dipl.-Phys. 6759 Hohenoellen De Gehm Extended liq. gas phase boundary surface prodn - by feeding fluid flow in conduit over displacement body with aerofoil shape and 2nd is introduced by injector located in body at area of largest cross=section
GB2263649B (en) * 1992-01-28 1994-05-25 David Richard Martin Short Improved fluid inductor
US6170978B1 (en) 1998-10-21 2001-01-09 Precision Venturi Ltd. Fluid inductor apparatus having deformable member for controlling fluid flow
US6443609B2 (en) 1998-10-21 2002-09-03 Precision Venturi Ltd. Fluid inductor system and apparatus having deformable member for controlling fluid flow

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015050A1 (en) * 1979-01-29 1980-09-03 General Signal Corporation Fluids mixing apparatus
DE3313081A1 (en) * 1983-04-12 1984-10-18 Peter Prof Dr Pohl Combined agitation, aeration and aspiration system for the mass culture of microorganisms, cell cultures and the like
WO1987000078A1 (en) * 1985-06-24 1987-01-15 Danfoil Aps Atomizer
DE3826589A1 (en) * 1988-08-04 1990-02-08 Siemens Ag Cell culture fermenter
DE4228172C1 (en) * 1992-08-25 1993-11-25 Bruno Gruber Method and apparatus for distributing a gas in a liquid
US5300261A (en) * 1992-11-12 1994-04-05 Richard Von Berg Liquid aerating apparatus
US5356569A (en) * 1992-11-12 1994-10-18 Richard Von Berg Liquid aerating apparatus

Also Published As

Publication number Publication date
GB1580211A (en) 1980-11-26
JPS52146049A (en) 1977-12-05

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Legal Events

Date Code Title Description
8126 Change of the secondary classification
8128 New person/name/address of the agent

Representative=s name: FLECK, T., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 200

8141 Disposal/no request for examination