GB1498982A - Waste water treatment plants - Google Patents

Waste water treatment plants

Info

Publication number
GB1498982A
GB1498982A GB93075A GB93075A GB1498982A GB 1498982 A GB1498982 A GB 1498982A GB 93075 A GB93075 A GB 93075A GB 93075 A GB93075 A GB 93075A GB 1498982 A GB1498982 A GB 1498982A
Authority
GB
United Kingdom
Prior art keywords
aerator
waste water
water treatment
compartment
disposed
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
GB93075A
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.)
Howden Engineering Ltd
Original Assignee
Howden Engineering 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 Howden Engineering Ltd filed Critical Howden Engineering Ltd
Priority to GB93075A priority Critical patent/GB1498982A/en
Publication of GB1498982A publication Critical patent/GB1498982A/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
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1242—Small compact installations for use in homes, apartment blocks, hotels or the like
    • 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
    • B01F23/231231—Diffusers consisting of rigid porous or perforated material the outlets being in the form of perforations
    • 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
    • B01F23/231266—Diffusers characterised by the shape of the diffuser element being in the form of rings or annular elements
    • 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
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • B01F23/232311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit the conduits being vertical draft pipes with a lower intake end and an upper exit end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/3203—Gas driven
    • 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
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/32015—Flow driven
    • 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

Abstract

1498982 Apparatus for waste water treatment: aerator HOWDEN ENG Ltd 29 Jan 1976 [9 Jan 1975 (2) 26 Feb 1975] 930/75 931/75 and 8089/75 Heading C1C An organic waste water treatment plant comprises a closed cylindrical waste water treatment compartment, a hollow annular aerator disposed within the compartment and means for supplying air under pressure to the hollow of the aerator, the aerator having a plurality of air discharge ports disposed so that air bubbles from the ports cause an upward flow of waste water through the opening defined by the annulus. In use the cylindrical compartment is disposed with its longitudinal axis horizontal and the aerator disposed vertically above and near to the bottom centre line of the compartment with the centre axis of the opening vertical. A preferred aerator is shown in Figs. 2 and 3 where the air is introduced to the aerator through aperture 33 and is discharged through ports 40 to opening 35.
GB93075A 1976-01-29 1976-01-29 Waste water treatment plants Expired GB1498982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB93075A GB1498982A (en) 1976-01-29 1976-01-29 Waste water treatment plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB93075A GB1498982A (en) 1976-01-29 1976-01-29 Waste water treatment plants

Publications (1)

Publication Number Publication Date
GB1498982A true GB1498982A (en) 1978-01-25

Family

ID=9713025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB93075A Expired GB1498982A (en) 1976-01-29 1976-01-29 Waste water treatment plants

Country Status (1)

Country Link
GB (1) GB1498982A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002770A1 (en) * 1982-02-15 1983-08-18 Werner Westermair Purification installation
GB2223752B (en) * 1988-06-08 1993-03-24 Elisabeth Mary Campbell Device for circulation and gas exchange in liquids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002770A1 (en) * 1982-02-15 1983-08-18 Werner Westermair Purification installation
EP0086489A1 (en) * 1982-02-15 1983-08-24 Werner Westermair Waste water treatment plant
GB2223752B (en) * 1988-06-08 1993-03-24 Elisabeth Mary Campbell Device for circulation and gas exchange in liquids

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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