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)
• Engineering & Computer Science (AREA)
• Biodiversity & Conservation Biology (AREA)
• Microbiology (AREA)
• Hydrology & Water Resources (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Environmental & Geological Engineering (AREA)
• Water Supply & Treatment (AREA)
• Organic Chemistry (AREA)
• Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
• Mixers Of The Rotary Stirring Type (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=23022100

Family Applications (1)

Country Status (13)

Families Citing this family (3)

Family Cites Families (7)

• 1972
  • 1972-07-03 US US3801075D patent/US3801075A/en not_active Expired - Lifetime
• 1973
  • 1973-06-05 CA CA173,232A patent/CA991763A/en not_active Expired
  • 1973-06-12 AU AU56788/73A patent/AU468049B2/en not_active Expired
  • 1973-06-21 FI FI2007/73A patent/FI56363C/fi active
  • 1973-06-22 NL NL7308727A patent/NL7308727A/xx unknown
  • 1973-06-25 FR FR7323106A patent/FR2190506B1/fr not_active Expired
  • 1973-06-25 GB GB3013773A patent/GB1409164A/en not_active Expired
  • 1973-06-28 BE BE132866A patent/BE801618A/xx unknown
  • 1973-06-29 JP JP7355673A patent/JPS4943454A/ja active Pending
  • 1973-06-29 AT AT573173A patent/AT327829B/de not_active IP Right Cessation
  • 1973-07-02 DE DE19732333602 patent/DE2333602A1/de active Pending
  • 1973-07-02 IT IT5116173A patent/IT989691B/it active
  • 1973-07-03 CH CH967873A patent/CH560166A5/xx not_active IP Right Cessation

Also Published As

Similar Documents