GB1511656A - Porous diffuser assemblies - Google Patents

Porous diffuser assemblies

Info

Publication number
GB1511656A
GB1511656A GB4320374A GB4320374A GB1511656A GB 1511656 A GB1511656 A GB 1511656A GB 4320374 A GB4320374 A GB 4320374A GB 4320374 A GB4320374 A GB 4320374A GB 1511656 A GB1511656 A GB 1511656A
Authority
GB
United Kingdom
Prior art keywords
diffuser
air
gasket
oct
porous diffuser
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
GB4320374A
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.)
Reed International Ltd
Original Assignee
Reed International Ltd
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 Reed International Ltd filed Critical Reed International Ltd
Priority to GB4320374A priority Critical patent/GB1511656A/en
Publication of GB1511656A publication Critical patent/GB1511656A/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
    • C02F3/20—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
    • B01F23/231143—Mounting the bubbling elements or diffusors, e.g. on conduits, using connecting elements; Connections therefor
    • 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
    • B01F23/23125—Diffusers characterised by the way in which they are assembled or mounted; Fabricating the parts of 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
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231262—Diffusers characterised by the shape of the diffuser element having disc shape
    • 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)
  • 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)

Abstract

1511656 Aerating liquids REED INTERNATIONAL Ltd 27 Oct 1975 [4 Oct 1974] 43203/74 Heading B1C Aerating apparatus of the type having a porous diffuser 2 immersed in the liquid to be aerated and supplied with air by an air pipe 1 on which the diffuser is mounted by mounting means 3 includes a gasket 25 between a depending rim of the diffuser and a support surface 18 therefor, the gasket having ribs 27 on its lower surface which are intended to allow a controlled leakage of air in bubbles which are approximately the same size as those emerging from the diffuser.
GB4320374A 1975-10-27 1975-10-27 Porous diffuser assemblies Expired GB1511656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4320374A GB1511656A (en) 1975-10-27 1975-10-27 Porous diffuser assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4320374A GB1511656A (en) 1975-10-27 1975-10-27 Porous diffuser assemblies

Publications (1)

Publication Number Publication Date
GB1511656A true GB1511656A (en) 1978-05-24

Family

ID=10427746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4320374A Expired GB1511656A (en) 1975-10-27 1975-10-27 Porous diffuser assemblies

Country Status (1)

Country Link
GB (1) GB1511656A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569805A (en) * 1984-09-28 1986-02-11 The Gray Engineering Group Inc. Apparatus for the submerged introduction of a fluid into a body of liquid
US5714062A (en) * 1993-10-01 1998-02-03 Water Pollution Control Corporation Diffuser conduit joint
EP1156871A1 (en) * 1999-03-02 2001-11-28 United States Filter Corporation Diffuser assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569805A (en) * 1984-09-28 1986-02-11 The Gray Engineering Group Inc. Apparatus for the submerged introduction of a fluid into a body of liquid
US5714062A (en) * 1993-10-01 1998-02-03 Water Pollution Control Corporation Diffuser conduit joint
EP1156871A1 (en) * 1999-03-02 2001-11-28 United States Filter Corporation Diffuser assembly
EP1156871A4 (en) * 1999-03-02 2002-07-31 United States Filter Corp Diffuser assembly

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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