GB1527895A - Surface aeration system with controlled aerator submergence - Google Patents

Surface aeration system with controlled aerator submergence

Info

Publication number
GB1527895A
GB1527895A GB4241375A GB4241375A GB1527895A GB 1527895 A GB1527895 A GB 1527895A GB 4241375 A GB4241375 A GB 4241375A GB 4241375 A GB4241375 A GB 4241375A GB 1527895 A GB1527895 A GB 1527895A
Authority
GB
United Kingdom
Prior art keywords
gas
liquid
aerator
oct
power consumption
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
GB4241375A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB1527895A publication Critical patent/GB1527895A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/006Regulation methods for biological treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234Surface aerating
    • B01F23/2342Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/237Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23761Aerating, i.e. introducing oxygen containing gas in liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/237Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2376Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
    • B01F23/23761Aerating, i.e. introducing oxygen containing gas in liquids
    • B01F23/237612Oxygen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/26Activated sludge processes using pure oxygen or oxygen-rich gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/70Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
    • B01F33/71Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming working at super-atmospheric pressure, e.g. in pressurised vessels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological 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)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

1527895 Aerating liquids UNION CARBIDE CORP 16 Oct 1975 [17 Oct 1974] 42413/75 Heading B1C [Also in Division G3] In a method of and apparatus for contacting a gas with a liquid, e.g. oxygen-rich gas with BOD liquor, and in which rotary surface aeration means 12, Fig. 2, are positioned in an enclosed treatment chamber 25 to which the liquid and gas are fed, the power consumption of the aeration means 12 is sensed by sensing means 89, a control signal generated and transmitted, 23, 24 and gas flow control means 6 adjusted in dependence thereon in order to adjust the gas pressure in the chamber and thereby the liquid level so as to maintain the power consumption at a predetermined optimum value and the liquid level at the design value. The rotary aerator may comprise four radially-extending, forwardly-angled blades mounted on a vertical shaft (Fig. 1 not shown) or alternatively a horizontally mounted brush-type aerator 39, Fig. 3, which extends through successive aeration chambers 40, 41, 42. In another embodiment (Fig. 5, not shown) the vertically arranged shafts of radial blade type aerators extend down into the liquid and carry mixing propellers at their lower ends. Controls (see Division G3) may be provided for controlling the oxygen concentration of the liquid undergoing treatment and the oxygen concentration of the spent gas.
GB4241375A 1974-10-17 1975-10-16 Surface aeration system with controlled aerator submergence Expired GB1527895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51568174A 1974-10-17 1974-10-17

Publications (1)

Publication Number Publication Date
GB1527895A true GB1527895A (en) 1978-10-11

Family

ID=24052313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4241375A Expired GB1527895A (en) 1974-10-17 1975-10-16 Surface aeration system with controlled aerator submergence

Country Status (5)

Country Link
JP (1) JPS5436415B2 (en)
BR (1) BR7506766A (en)
DE (1) DE2546429A1 (en)
FR (1) FR2287939A1 (en)
GB (1) GB1527895A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138692A (en) * 1983-04-05 1984-10-31 Isc Smelting Dispersion of Liquids in Gases

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500323B2 (en) * 1974-12-05 1989-05-19 Roland Jean Louis DEVICE FOR INTRODUCING A GAS INTO A LIQUID
DE2800034C2 (en) * 1978-01-02 1984-01-05 Passavant-Werke AG & Co KG, 6209 Aarbergen Wastewater treatment process as well as the facility for its implementation
EP0088850B1 (en) * 1982-03-12 1986-07-16 Jean-Louis Roland Device for introducing a gas into a liquid and use of the said device
JPH0222026Y2 (en) * 1985-08-08 1990-06-13
RU200367U1 (en) * 2020-03-11 2020-10-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Петрозаводский государственный университет" OXYGENATOR
CN115433594B (en) * 2022-09-28 2023-12-05 张双兴 Pressure adjusting method and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138692A (en) * 1983-04-05 1984-10-31 Isc Smelting Dispersion of Liquids in Gases

Also Published As

Publication number Publication date
JPS5164749A (en) 1976-06-04
BR7506766A (en) 1976-08-17
DE2546429A1 (en) 1976-04-29
JPS5436415B2 (en) 1979-11-09
FR2287939B1 (en) 1980-01-11
FR2287939A1 (en) 1976-05-14

Similar Documents

Publication Publication Date Title
GB1381968A (en) Method for introduction and circulation of oxygen or oxygenous gas in a liquid which is to be clarified and apparatus for carrying out the method
US3547811A (en) Cyclic oxygenation of bod-containing water
CA1060590A (en) Methods and apparatus for controlling the supply of feed gas to dissolution devices
GB1527731A (en) Sewage treatment-flotation apparatus
GB1326457A (en) Method and apparatus for dissolving gas in and stripping gas from water
GB1397629A (en) Method of introducing oxygen into a liquid to be clarified and a device for carrying the method into effect
GB1521785A (en) Apparatus for dispersing a gas in a liquid
GB1527895A (en) Surface aeration system with controlled aerator submergence
GB1534209A (en) Floating device for aerating or circulating a body of liquid
ES8203068A1 (en) Method and apparatus for the separation of gas and solids from waste mixed liquors.
GB1355990A (en) Method and apparatus for controlling foam formation in aeration reactors
GB1473665A (en) Treatment of biologically-degradable waste
GB1221022A (en) Treatment of a liquid by means of a gaseous fluid
ES8102993A1 (en) Apparatus and process for the aeration of a high solids concentration pseudoplastic liquid-solid mixture.
GB1528694A (en) Stirring apparatus for processing waste waters by injecting gas
US4285818A (en) Process of treating wastewater with oxygen
GB1336372A (en) Method and apparatus for sparging gas into liquid
GB1450612A (en) Method and apparatus for treating wastewater
JPS571490A (en) Method and apparatus for automatical control of aeration in active sludge process for disposal of sewage
GB1322439A (en) Process and aeration device for the continuous purification of highly polluted effluents
GB1449410A (en) Apparatus for dispersing a medium in another medium
JPS61149080A (en) Organism cell culture device for scaling up
JPH0738992B2 (en) Oxidation ditch
GB1497043A (en) Aeration of liquids
KR840007858A (en) Aerator

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee