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GB2294458A - Biological aerated filter - Google Patents

Biological aerated filter

Info

Publication number
GB2294458A
GB2294458A GB9600512A GB9600512A GB2294458A GB 2294458 A GB2294458 A GB 2294458A GB 9600512 A GB9600512 A GB 9600512A GB 9600512 A GB9600512 A GB 9600512A GB 2294458 A GB2294458 A GB 2294458A
Authority
GB
United Kingdom
Prior art keywords
tube
air diffuser
aerated filter
biological aerated
membrane
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
GB9600512A
Other versions
GB9600512D0 (en
GB2294458B (en
Inventor
David Peter Froud
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.)
Individual
Original Assignee
Individual
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 claimed from GB939317701A external-priority patent/GB9317701D0/en
Priority claimed from GB939317968A external-priority patent/GB9317968D0/en
Application filed by Individual filed Critical Individual
Publication of GB9600512D0 publication Critical patent/GB9600512D0/en
Publication of GB2294458A publication Critical patent/GB2294458A/en
Application granted granted Critical
Publication of GB2294458B publication Critical patent/GB2294458B/en
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
    • 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
    • B01F23/23124—Diffusers consisting of flexible porous or perforated material, e.g. fabric
    • B01F23/231244—Dissolving, hollow fiber membranes
    • 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
    • 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
    • C02F3/06—Aerobic processes using submerged filters
    • 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
    • C02F3/201—Perforated, resilient plastic diffusers, e.g. membranes, sheets, foils, tubes, hoses
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (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)
  • Biological Treatment Of Waste Water (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to a biological aerated filter. A hollow upright cylindrical tube (1, 20, 40, 60, 80, 90) is provided with an internal packing of solid support media (5, 26, 94) which provides a large surface area for supporting microbial biomass. The tube is provided with an inlet (6, 21, 41, 61, 81, 91) and an outlet (7, 22, 42, 68, 82 92) for passage of liquid waste to be treated inside the tube. An air diffuser (4, 67, 93) having a flexible multi-perforated membrane (36) is arranged at the base of the tube. In use, a stream of air bubbles is passed upwardly from the air diffuser through liquid in the tube. The membrane of the air diffuser is sealed to the lower part of the tube so as to prevent solids passing around and below the air diffuser. <IMAGE>
GB9600512A 1993-08-25 1994-08-18 Biological aerated filter Expired - Fee Related GB2294458B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939317701A GB9317701D0 (en) 1993-08-25 1993-08-25 Biological aerated filter
GB939317968A GB9317968D0 (en) 1993-08-28 1993-08-28 Biological aerated filter
PCT/GB1994/001807 WO1995006010A1 (en) 1993-08-25 1994-08-18 Biological aerated filter

Publications (3)

Publication Number Publication Date
GB9600512D0 GB9600512D0 (en) 1996-03-13
GB2294458A true GB2294458A (en) 1996-05-01
GB2294458B GB2294458B (en) 1997-08-27

Family

ID=26303425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9600512A Expired - Fee Related GB2294458B (en) 1993-08-25 1994-08-18 Biological aerated filter

Country Status (3)

Country Link
AU (1) AU7390094A (en)
GB (1) GB2294458B (en)
WO (1) WO1995006010A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2204422A1 (en) 1997-05-02 1998-11-02 Alexandra Kantardjieff Method of treating the liquid fraction of pig manure by an aerobic biofilter and sequestration of the solid fraction by zeolite
DE19860942C1 (en) 1998-12-29 2000-05-04 Wolfgang Luehr Waste water aerobic micro-biological treatment assembly minimizes the quantity of sludge for final disposal without sacrifice of water quality
DE60126601T2 (en) 2000-04-18 2007-11-22 Mitsubishi Rayon Co., Ltd. METHOD AND DEVICE FOR PREPARING CARBONATED WATER
AU2005334124B2 (en) 2005-07-06 2011-05-12 Glowtec Bio Pte Ltd Water treatment process
US20230399247A1 (en) * 2022-06-10 2023-12-14 Tommy Gig DREWERY Biofilm reactor for treating wastewater

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001101A2 (en) * 1977-09-02 1979-03-21 Willy-F. Palmer Process and apparatus for the purification of waste water in a multistage filter device
WO1991016270A1 (en) * 1990-04-24 1991-10-31 Alistair James Mcdonald Process and apparatus for biological treatment of effluent
JPH0568991A (en) * 1991-09-10 1993-03-23 Chiyoda Corp Bacteria carrier packed net bag

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001101A2 (en) * 1977-09-02 1979-03-21 Willy-F. Palmer Process and apparatus for the purification of waste water in a multistage filter device
WO1991016270A1 (en) * 1990-04-24 1991-10-31 Alistair James Mcdonald Process and apparatus for biological treatment of effluent
JPH0568991A (en) * 1991-09-10 1993-03-23 Chiyoda Corp Bacteria carrier packed net bag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan vol 17, no. 388 (C-1086) & JP 05 068991 A *

Also Published As

Publication number Publication date
AU7390094A (en) 1995-03-21
WO1995006010A1 (en) 1995-03-02
GB9600512D0 (en) 1996-03-13
GB2294458B (en) 1997-08-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020818