DE69218426T2 - Erhöhte Gasauflösung - Google Patents

Erhöhte Gasauflösung

Info

Publication number
DE69218426T2
DE69218426T2 DE69218426T DE69218426T DE69218426T2 DE 69218426 T2 DE69218426 T2 DE 69218426T2 DE 69218426 T DE69218426 T DE 69218426T DE 69218426 T DE69218426 T DE 69218426T DE 69218426 T2 DE69218426 T2 DE 69218426T2
Authority
DE
Germany
Prior art keywords
increased gas
gas dissolution
dissolution
increased
gas
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 - Fee Related
Application number
DE69218426T
Other languages
English (en)
Other versions
DE69218426D1 (de
Inventor
Thomas John Bergman
Jeffrey Paul Kingsley
Mark Herbert Kirby
Mitchell Adis
Victor Alexander Coppola
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.)
Praxair Technology Inc
Original Assignee
Praxair Technology 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 Praxair Technology Inc filed Critical Praxair Technology Inc
Application granted granted Critical
Publication of DE69218426D1 publication Critical patent/DE69218426D1/de
Publication of DE69218426T2 publication Critical patent/DE69218426T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • 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
    • B01F23/2336—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 location of the place of introduction of the gas relative to the stirrer
    • B01F23/23363—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 location of the place of introduction of the gas relative to the stirrer the gas being introduced above the stirrer
    • 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
    • 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
    • B01F23/2334—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
    • B01F23/23341—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer with tubes surrounding the stirrer
    • 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
    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
    • B01F23/237612—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1144—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • 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

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)
  • Biological Treatment Of Waste Water (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
DE69218426T 1992-08-17 1992-12-28 Erhöhte Gasauflösung Expired - Fee Related DE69218426T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92771192A 1992-08-17 1992-08-17

Publications (2)

Publication Number Publication Date
DE69218426D1 DE69218426D1 (de) 1997-04-24
DE69218426T2 true DE69218426T2 (de) 1997-10-02

Family

ID=25455129

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69218426T Expired - Fee Related DE69218426T2 (de) 1992-08-17 1992-12-28 Erhöhte Gasauflösung

Country Status (10)

Country Link
US (1) US6135430A (de)
EP (1) EP0583509B1 (de)
JP (1) JP2563055B2 (de)
KR (1) KR0139058B1 (de)
AR (1) AR247713A1 (de)
BR (1) BR9205151A (de)
CA (1) CA2086268C (de)
DE (1) DE69218426T2 (de)
ES (1) ES2098434T3 (de)
MX (1) MX9207589A (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6145815A (en) * 1992-08-17 2000-11-14 Praxair Technology, Inc. System for enhanced gas dissolution having a hood positioned over the impeller with segregating rings
US6362367B2 (en) 1998-04-21 2002-03-26 Union Carbide Chemicals & Plastics Technology Corp. Preparation of organic acids
FR2784311B1 (fr) 1998-10-09 2000-12-08 Air Liquide Dispositif d'agitation d'un liquide dans un reacteur et d'injection d'un gaz dans ce liquide
US6273402B1 (en) 2000-01-10 2001-08-14 Praxair Technology, Inc. Submersible in-situ oxygenator
KR100465755B1 (ko) * 2002-08-06 2005-01-13 조통래 기포용해장치
FR2868335B1 (fr) * 2004-04-02 2006-06-02 Air Liquide Dispositif d'injection d'un gaz dans un liquide
US7510661B2 (en) * 2004-05-04 2009-03-31 Hills Blair H Separation system for the removal of fat, oil or grease from wastewater
US8146894B2 (en) 2004-06-21 2012-04-03 Hills Blair H Apparatus for mixing gasses and liquids
DE602005016411D1 (de) 2004-06-21 2009-10-15 Blair H Hills Vorrichtung zur diffundierten belüftung
US7377497B2 (en) * 2005-09-16 2008-05-27 Philadelphia Gear Corporation Aeration system and method
WO2007092701A2 (en) * 2006-01-30 2007-08-16 Hills Blair H Apparatus for mixing gasses and liquids
LT1981909T (lt) 2006-02-08 2017-01-10 Morphotek, Inc. Antigeniniai gm-csf peptidai ir gm-csf antikūnai
US8146895B2 (en) * 2006-03-31 2012-04-03 Hills Blair H Apparatus for mixing gasses and liquids
US7497949B2 (en) * 2006-11-21 2009-03-03 Praxair Technology, Inc. System and method for oxygenating an aerobic sludge digester
US7455776B2 (en) * 2006-11-21 2008-11-25 Praxair Technology, Inc. Method for mixing high viscous liquids with gas
US8044220B2 (en) * 2007-06-27 2011-10-25 H R D Corporation High shear process for the production of butadiene sulfone
US7699986B2 (en) 2007-08-24 2010-04-20 Praxair Technology, Inc. Method for activated sludge wastewater treatment with high dissolved oxygen levels
US8387957B2 (en) * 2009-01-29 2013-03-05 Aqua-Aerobic Systems, Inc. Downflow mixers with gas injection devices and/or baffles
KR101924264B1 (ko) 2016-11-29 2018-11-30 성균관대학교산학협력단 고효율 용존 자수압 수중 기체 혼합 수처리 장치
US10683221B2 (en) 2017-12-14 2020-06-16 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Gas injection and recycling apparatus and methods

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US32562A (en) * 1861-06-18 Ealph hill
US2194037A (en) * 1938-03-18 1940-03-19 Seth L Way Aerating device for liquids
US2313654A (en) * 1940-11-19 1943-03-09 Turbo Mixer Corp Apparatus for treating liquids with gases
US3189334A (en) * 1963-10-04 1965-06-15 Bell Robert Wayne Aerating device
FR1534745A (fr) * 1967-04-24 1968-08-02 Tech Des Ind Metallurg Soc Et Toupie pour dissolution des gaz dans les liquides
US3547811A (en) * 1969-07-02 1970-12-15 Union Carbide Corp Cyclic oxygenation of bod-containing water
FR2123732A5 (de) * 1971-01-29 1972-09-15 Cie Gle Transatlantique
US3775307A (en) * 1971-04-08 1973-11-27 Union Carbide Corp System for gas sparging into liquid
DE2216917C3 (de) * 1972-04-07 1974-09-19 Richard Dipl.-Ing. 6100 Darmstadt Schreiber Vorrichtung zum Lösen von Sauerstoff in Wasser
US3846516A (en) * 1972-09-25 1974-11-05 Rockwell International Corp Aerator device and method
GB1428349A (en) * 1974-04-04 1976-03-17 Solem Machine Co Down-flow mixing apparatus
US4045336A (en) * 1974-08-23 1977-08-30 Pauli Henrik Isteri Method and device for oxygenating water with vibrations and under pressure strokes
NL166409C (nl) * 1976-10-22 1981-08-17 Dhv Raadgevend Ing Inrichting voor het met elkaar in contact brengen van een gas en een vloeistof.
DE2734629A1 (de) * 1977-08-01 1979-02-08 Passavant Werke Vorrichtung zum belueften von fluessigkeiten, insbesondere abwasser
US4290885A (en) * 1977-12-22 1981-09-22 Dochan Kwak Aeration device
US4545907A (en) * 1984-11-27 1985-10-08 Repin Boris N Aeration tank
DE3501175A1 (de) * 1985-01-16 1986-07-17 Franz-Josef Dipl.-Ing. 4791 Lichtenau Damann Verfahren und vorrichtung zur mischung und loesung von gas in fluessigkeit
FI74628C (fi) * 1985-03-07 1988-03-10 Plan Sell Oy Foerfarande och anordning foer tillfoersel av gas eller gasblandning till vaetska.
US4681711A (en) * 1986-05-06 1987-07-21 Eaton John M Method and apparatus for aeration of wastewater lagoons

Also Published As

Publication number Publication date
AR247713A1 (es) 1995-03-31
KR940003870A (ko) 1994-03-12
EP0583509A1 (de) 1994-02-23
CA2086268C (en) 1996-06-18
EP0583509B1 (de) 1997-03-19
DE69218426D1 (de) 1997-04-24
CA2086268A1 (en) 1994-02-18
KR0139058B1 (ko) 1998-04-30
JPH0686922A (ja) 1994-03-29
US6135430A (en) 2000-10-24
JP2563055B2 (ja) 1996-12-11
ES2098434T3 (es) 1997-05-01
MX9207589A (es) 1994-06-30
BR9205151A (pt) 1994-03-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee