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GB1421668A - Biological treatment of liquid effluent - Google Patents

Biological treatment of liquid effluent

Info

Publication number
GB1421668A
GB1421668A GB3892473A GB3892473A GB1421668A GB 1421668 A GB1421668 A GB 1421668A GB 3892473 A GB3892473 A GB 3892473A GB 3892473 A GB3892473 A GB 3892473A GB 1421668 A GB1421668 A GB 1421668A
Authority
GB
United Kingdom
Prior art keywords
air
outlet
effluent
baffle
inlets
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
GB3892473A
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.)
Barrett D V
BARVIEW DEV
Original Assignee
Barrett D V
BARVIEW DEV
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 Barrett D V, BARVIEW DEV filed Critical Barrett D V
Priority to GB3892473A priority Critical patent/GB1421668A/en
Publication of GB1421668A publication Critical patent/GB1421668A/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
    • C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
    • C02F3/207—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors with axial thrust propellers
    • 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
    • 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)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

1421668 Aerating and agitating liquids BARVIEW DEVELOPMENTS LTD and D V BARRETT 21 Oct 1974 [17 Aug 1973] 38924/ 73 Heading B1C In a method of biologically treating effluent it is supplied with air to the upper part of a vertical elongate chamber and moved downwards to an outlet with increasing velocity. In Fig. 1 a draft tube immersed in effluent has upper and lower parts 1, 8 of greater and less cross-section, and an impeller 4 draws effluent through inlets 2 and moves it down to an outlet 9. Air is drawn through inlets 10 and reaches the impeller turbulent zone through passages in the bearing 11. There is a conical baffle 3, plane baffles 6, 7 to prevent bodily rotation of the liquid, and a cruciform outlet baffle. Additional air may be supplied through a diffuser 12. In a modification (see Fig. 2, not shown) the conical baffle 3 is replaced by a plane horizontal baffle, through apertures in which depend air inlet tubes (14).
GB3892473A 1973-08-17 1973-08-17 Biological treatment of liquid effluent Expired GB1421668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3892473A GB1421668A (en) 1973-08-17 1973-08-17 Biological treatment of liquid effluent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3892473A GB1421668A (en) 1973-08-17 1973-08-17 Biological treatment of liquid effluent

Publications (1)

Publication Number Publication Date
GB1421668A true GB1421668A (en) 1976-01-21

Family

ID=10406517

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3892473A Expired GB1421668A (en) 1973-08-17 1973-08-17 Biological treatment of liquid effluent

Country Status (1)

Country Link
GB (1) GB1421668A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394268A (en) * 1977-11-04 1983-07-19 Reid John H Conversion of plug flow and complete mix aeration basins to barrier oxidation ditches
US4455232A (en) * 1977-11-04 1984-06-19 Reid John H Method and apparatus for induced-flow circulation and pressurized aeration in a barrier oxidation ditch
CN115043550A (en) * 2022-06-24 2022-09-13 苏州城投环境科技发展有限公司 Environment-friendly sewage treatment device and treatment method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394268A (en) * 1977-11-04 1983-07-19 Reid John H Conversion of plug flow and complete mix aeration basins to barrier oxidation ditches
US4455232A (en) * 1977-11-04 1984-06-19 Reid John H Method and apparatus for induced-flow circulation and pressurized aeration in a barrier oxidation ditch
CN115043550A (en) * 2022-06-24 2022-09-13 苏州城投环境科技发展有限公司 Environment-friendly sewage treatment device and treatment method thereof

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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