GB1399543A - Rotatable surface aerator for activated sludge effluent purification - Google Patents

Rotatable surface aerator for activated sludge effluent purification

Info

Publication number
GB1399543A
GB1399543A GB5083072A GB5083072A GB1399543A GB 1399543 A GB1399543 A GB 1399543A GB 5083072 A GB5083072 A GB 5083072A GB 5083072 A GB5083072 A GB 5083072A GB 1399543 A GB1399543 A GB 1399543A
Authority
GB
United Kingdom
Prior art keywords
blades
casing
rotor
rotatable surface
surface aerator
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
GB5083072A
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.)
VIZGEPESZETI VALLALAT
Original Assignee
VIZGEPESZETI VALLALAT
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 VIZGEPESZETI VALLALAT filed Critical VIZGEPESZETI VALLALAT
Priority to GB5083072A priority Critical patent/GB1399543A/en
Publication of GB1399543A publication Critical patent/GB1399543A/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

  • 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)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

1399543 Surface aerators VIZGEPESZETI VALLALAT 3 Nov 1972 50830/72 Heading B1C A rotatable surface aerator comprises a bladed rotor the blades of which are adjustable to vary the effective diameter and/or length along the axis of rotation of the rotor. The rotor has a frusto-conical casing 1 with radial blades 3a to which are adjustably and detachably secured blade end plates 3b for varying the effective diameter of the rotor. A further set of blades 2 are mounted to extend both inwardly and outwardly of the casing through slots therein, the blades 2 being pivotally mounted at 11 on the casing so as to be adjustable inwardly and outwardly thereof by means of a vertically movable shaft 6 coupled to the blades by rods 4. Elongate slots (9, Fig 2, not shown) are provided in the wall of the casing 1 behind the blades 2 to allow effluent material to flow into the interior of the casing. The blades 3a, 3b are provided with apertures 10 to assist in the oxygenation of effluent being treated.
GB5083072A 1972-11-03 1972-11-03 Rotatable surface aerator for activated sludge effluent purification Expired GB1399543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5083072A GB1399543A (en) 1972-11-03 1972-11-03 Rotatable surface aerator for activated sludge effluent purification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5083072A GB1399543A (en) 1972-11-03 1972-11-03 Rotatable surface aerator for activated sludge effluent purification

Publications (1)

Publication Number Publication Date
GB1399543A true GB1399543A (en) 1975-07-02

Family

ID=10457548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5083072A Expired GB1399543A (en) 1972-11-03 1972-11-03 Rotatable surface aerator for activated sludge effluent purification

Country Status (1)

Country Link
GB (1) GB1399543A (en)

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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