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GB1470926A - Surface aerator and a rotor therefor - Google Patents

Surface aerator and a rotor therefor

Info

Publication number
GB1470926A
GB1470926A GB3377275A GB3377275A GB1470926A GB 1470926 A GB1470926 A GB 1470926A GB 3377275 A GB3377275 A GB 3377275A GB 3377275 A GB3377275 A GB 3377275A GB 1470926 A GB1470926 A GB 1470926A
Authority
GB
United Kingdom
Prior art keywords
ring
upwardly
blade
aug
bent
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
GB3377275A
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.)
Huber Co Bv Maschf
Original Assignee
Huber Co Bv Maschf
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 Huber Co Bv Maschf filed Critical Huber Co Bv Maschf
Publication of GB1470926A publication Critical patent/GB1470926A/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
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • 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
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface 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
    • B01F23/23421—Surface 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
    • B01F23/234211—Stirrers thereof
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

1470926 Aerating liquids MACHINEFABRIEK W HUBERT & CO BV 13 Aug 1975 [29 Aug 1974] 33772/75 Heading B1C A rotatable surface aerator has a boss 1, 2 carrying a plurality of radial blades 3 interconnected by a ring 7, the blades extending at 10 beyond the ring and having lower edges which extend perpendicularly to the rotational axis at 5 and thereafter upwardly, and upper edges which extend outwardly and upwardly the adjacent blade portion 9 being bent in the intended direction of rotation. Preferably the angle of the portion 9 is 30‹ to 60‹ to the plane of the blade, and a part of the lower edge of the blade may be bent in the same sense. As shown the ring 7 is upwardly convex but it may be planar or frusto-conical, or diminished to a slip.
GB3377275A 1974-08-29 1975-08-13 Surface aerator and a rotor therefor Expired GB1470926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7411483A NL155796B (en) 1974-08-29 1974-08-29 ROTOR FOR A SURFACE AERATOR.

Publications (1)

Publication Number Publication Date
GB1470926A true GB1470926A (en) 1977-04-21

Family

ID=19821992

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3377275A Expired GB1470926A (en) 1974-08-29 1975-08-13 Surface aerator and a rotor therefor

Country Status (7)

Country Link
BE (1) BE832740A (en)
DE (2) DE2538156C2 (en)
FR (1) FR2283095A1 (en)
GB (1) GB1470926A (en)
IE (1) IE41451B1 (en)
LU (1) LU73273A1 (en)
NL (1) NL155796B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL169165C (en) * 1976-05-31 1985-04-16 Dhv Raadgevend Ing SURFACE AERATOR.
CH630268A5 (en) * 1978-06-12 1982-06-15 Kaelin J R SURFACE VENTILATOR.
CH655533B (en) * 1981-08-14 1986-04-30

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189954B (en) * 1961-12-04 1965-04-01 Carves Simon Ltd Agitator for aerating liquids
DE2034269A1 (en) * 1970-07-10 1972-01-20 Schade H Device for circulating and aerating liquid

Also Published As

Publication number Publication date
BE832740A (en) 1976-02-26
NL155796B (en) 1978-02-15
FR2283095A1 (en) 1976-03-26
IE41451L (en) 1976-02-29
FR2283095B1 (en) 1982-03-19
DE2538156A1 (en) 1976-04-01
LU73273A1 (en) 1976-05-31
AU8392775A (en) 1977-02-17
IE41451B1 (en) 1980-01-02
NL7411483A (en) 1976-03-02
DE7527134U (en) 1976-01-22
DE2538156C2 (en) 1984-11-15

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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

Effective date: 19930813