FR1603504A - Aerator for biological purification of sewage - Google Patents

Aerator for biological purification of sewage

Info

Publication number
FR1603504A
FR1603504A FR1603504DA FR1603504A FR 1603504 A FR1603504 A FR 1603504A FR 1603504D A FR1603504D A FR 1603504DA FR 1603504 A FR1603504 A FR 1603504A
Authority
FR
France
Prior art keywords
water
wheel
guide tube
vanes
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1603504A publication Critical patent/FR1603504A/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
    • 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
    • C02F3/165—Activated sludge processes using surface aeration the aerator having a vertical axis using vertical aeration channels
    • 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)
  • Engineering & Computer Science (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

Aeration device consists of a wheel fitted with a large number of radial vanes; the wheel hub is fixed to a vertical shaft, driven by a reducing motor. The shaft and the horizontal vane wheel can be raised and lowered by means of a nut. A guide tube is fixed below the wheel which is partially above the level of the water; it sucks the recycled water up the guide tube and projects it radially above the hopper at the top of the tube. The water is deflected by the upper surface of the blade to form a vortex. Fresh air is fed to the water by the upper surfaces of the vanes at increased pressure. The device reduces the cost of the energy required to introduce a given quantity of oxygen for activating the sludge and securing the best living conditions for the bacteria.
FR1603504D 1967-10-13 1968-10-11 Aerator for biological purification of sewage Expired FR1603504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0053764 1967-10-13

Publications (1)

Publication Number Publication Date
FR1603504A true FR1603504A (en) 1971-05-03

Family

ID=7106586

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1603504D Expired FR1603504A (en) 1967-10-13 1968-10-11 Aerator for biological purification of sewage

Country Status (9)

Country Link
AT (1) AT281703B (en)
BE (1) BE721146A (en)
CS (1) CS177806B2 (en)
DE (2) DE1658067A1 (en)
DK (1) DK131026B (en)
ES (1) ES358489A1 (en)
FR (1) FR1603504A (en)
SE (1) SE335105B (en)
YU (1) YU231368A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3253212B2 (en) * 1993-03-31 2002-02-04 関西化学機械製作株式会社 Stirring blade and stirring method
US5785424A (en) * 1993-04-30 1998-07-28 Kansai Chemical Engineering Co. Ltd. Agitator blade having agitators with open first and second ends and inner fabrics therein
EP0916390B1 (en) * 1997-11-14 2002-12-11 Kansai Chemical Engineering Co. Ltd Liquid ejection apparatus and liquid ejection method
CA2298879C (en) 1999-02-22 2004-09-14 Hideo Noda Liquid ejection apparatus and liquid ejection method

Also Published As

Publication number Publication date
DE1658067A1 (en) 1970-07-02
DK131026B (en) 1975-05-20
DE1658067B2 (en) 1974-08-08
ES358489A1 (en) 1970-04-16
DE1658067C3 (en) 1975-05-07
BE721146A (en) 1969-03-03
DK131026C (en) 1975-10-20
YU231368A (en) 1981-04-30
CS177806B2 (en) 1977-08-31
SE335105B (en) 1971-05-10
AT281703B (en) 1970-05-25

Similar Documents

Publication Publication Date Title
US3840216A (en) Vacuum aeration of liquid waste effluent
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
SE8104159L (en) DEVICE FOR MIXING A GAS AND A LIQUID OR FOR THE VEGASATION OF A LIQUID
FR1603504A (en) Aerator for biological purification of sewage
CN209906464U (en) Power type biological generator structure
CN105366803B (en) A kind of multi-functional surface aerator
KR100805166B1 (en) Aeration system
US3951758A (en) Method of operating a purifying plant and tank for practicing said method
CN205821125U (en) A kind of miniature aquaculture wastewater processing equipment
RU2471724C1 (en) Method of water aeration and device for its realisation
FR2278635A1 (en) Small-scale sewage treatment - by aeration through immersed splash wheel combined with radial air flow impeller
KR102499602B1 (en) Fermentation treatment device for organic waste
CN107487872A (en) A kind of Mechanical aerator
CN204298140U (en) A kind of microkinetic aerator
CN211546076U (en) Free formula river course nanometer aeration machine for sewage treatment
FR2338072A1 (en) Mechanical aerator for pisciculture and activated sludge tanks - pumps liq. up to turbine rotor clear above liq. surface
CN206511959U (en) A kind of solid-liquid separating type sewage disposal device
CN221397530U (en) Multifunctional aerobic tank
CN208684438U (en) A kind of semi-submersible type deslagging device
FR2275407A1 (en) Stirred aeration tank for water purificn. - by activated sludge, with horizontal circulator to enhance air contact
CN201896097U (en) Sewage-treatment wind-energy aerating apparatus
FR2285347A1 (en) Oxygenation appts. for waste water and sewage - with partly immersed rotating cylinder with peripheral conduits
FR2241500A1 (en) Biological purifn of effluent by oxygenation - from atmospheric air entrained as effluent jets through venturi ejector
FR2240039A1 (en) Aerator esp. for waste water purification - inducing centrifugal flow of gas and liquid at surface
FR2239427A1 (en) Vertical oxygenating impeller for sewage purificn - which rotates around tank on horizontal arm

Legal Events

Date Code Title Description
ST Notification of lapse