CA2733861A1 - Aerateur a faible turbulence et procede d'aeration - Google Patents

Aerateur a faible turbulence et procede d'aeration Download PDF

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Publication number
CA2733861A1
CA2733861A1 CA 2733861 CA2733861A CA2733861A1 CA 2733861 A1 CA2733861 A1 CA 2733861A1 CA 2733861 CA2733861 CA 2733861 CA 2733861 A CA2733861 A CA 2733861A CA 2733861 A1 CA2733861 A1 CA 2733861A1
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CA
Canada
Prior art keywords
gas
liquid
impeller
mixture chamber
liquid mixture
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
CA 2733861
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English (en)
Other versions
CA2733861C (fr
Inventor
Richard Ladouceur
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Individual
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Individual
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Publication date
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Priority to CA2733861A priority Critical patent/CA2733861C/fr
Publication of CA2733861A1 publication Critical patent/CA2733861A1/fr
Application granted granted Critical
Publication of CA2733861C publication Critical patent/CA2733861C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B01F23/23313—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 through a separate conduit substantially parallel with the stirrer 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
    • B01F23/2334—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
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2335—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 direction of introduction of the gas relative to the stirrer
    • B01F23/23353—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 direction of introduction of the gas relative to the stirrer the gas being sucked towards the rotating 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
    • B01F23/233—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
    • 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
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

Un aérateur de type aspirant à faible turbulence, introduit dans un corps dun liquide, est constitué : dun tube de transport de gaz qui comporte une extrémité dentrée de gaz et une extrémité de sortie de gaz; dune chambre de mélange gaz-liquide incorporant une hélice attachée à une tige rotative, au moins une ouverture dentrée de gaz et au moins une ouverture dévacuation gaz-liquide à une extrémité du bas, ou à proximité, de la chambre de mélange de gaz. La rotation de lhélice crée une zone de basse pression (vide) qui permet au gaz transporté par le tube de transport de gaz dentrer en contact avec lhélice en rotation pour former un mélange gaz-liquide à linterface de lhélice où les bulles sont formées. La chambre de mélange gaz-liquide confine les bulles de gaz et permet ainsi au mouvement de lhélice et à la force de cisaillement du liquide de produire et dévacuer des bulles de gaz micronisées ayant majoritairement moins de 0,85 mm. Les bulles de gaz micronisées produites ont une longue résidence ou une durée de maintien du gaz à lintérieur du corps de liquide, où le gaz à lintérieur des bulles peut, en fonction dun gradient de concentration, se diffuser dans le liquide et ainsi permettre un taux de transfert élevé de gaz (oxygène).
CA2733861A 2011-03-07 2011-03-07 Aerateur a faible turbulence et procede d'aeration Active CA2733861C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2733861A CA2733861C (fr) 2011-03-07 2011-03-07 Aerateur a faible turbulence et procede d'aeration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2733861A CA2733861C (fr) 2011-03-07 2011-03-07 Aerateur a faible turbulence et procede d'aeration

Publications (2)

Publication Number Publication Date
CA2733861A1 true CA2733861A1 (fr) 2012-09-07
CA2733861C CA2733861C (fr) 2017-01-24

Family

ID=46787383

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2733861A Active CA2733861C (fr) 2011-03-07 2011-03-07 Aerateur a faible turbulence et procede d'aeration

Country Status (1)

Country Link
CA (1) CA2733861C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106045080A (zh) * 2016-08-04 2016-10-26 江苏菲力环保工程有限公司 一种自吸式超微气泡射流曝气装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106045080A (zh) * 2016-08-04 2016-10-26 江苏菲力环保工程有限公司 一种自吸式超微气泡射流曝气装置

Also Published As

Publication number Publication date
CA2733861C (fr) 2017-01-24

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Effective date: 20160126