GB1450612A - Method and apparatus for treating wastewater - Google Patents

Method and apparatus for treating wastewater

Info

Publication number
GB1450612A
GB1450612A GB4680674A GB4680674A GB1450612A GB 1450612 A GB1450612 A GB 1450612A GB 4680674 A GB4680674 A GB 4680674A GB 4680674 A GB4680674 A GB 4680674A GB 1450612 A GB1450612 A GB 1450612A
Authority
GB
United Kingdom
Prior art keywords
vessel
liquid
gas
rod
zone
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
GB4680674A
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.)
Airco Inc
Original Assignee
Airco Inc
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 Airco Inc filed Critical Airco Inc
Publication of GB1450612A publication Critical patent/GB1450612A/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
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1284—Mixing devices
    • 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
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • 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
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • B01F23/232312—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit the guiding constructions being baffles for guiding the flow up-and-down or from left-to-right
    • 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
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2334—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
    • B01F23/23341—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer with tubes surrounding the stirrer
    • 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
    • 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
    • B01F23/2341—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere
    • B01F23/23411—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere by cascading the liquid
    • 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
    • B01F23/2366—Parts; Accessories
    • B01F23/2368—Mixing receptacles, e.g. tanks, vessels or reactors, being completely closed, e.g. hermetically closed
    • 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
    • B01F23/237—Mixing 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
    • B01F23/2376—Mixing 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
    • B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
    • B01F23/237612—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/751—Discharging by opening a gate, e.g. using discharge paddles
    • 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
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1289—Aeration by saturation under super-atmospheric pressure
    • 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
    • C02F3/24—Activated sludge processes using free-fall aeration or spraying
    • 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
    • C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • 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)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Microbiology (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Activated Sludge Processes (AREA)
  • Treatment Of Biological Wastes In General (AREA)
  • Rotary Pumps (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

1450612 Aerating liquids AIRCO INC 29 Oct 1974 [6 Nov 1973] 46806/74 Heading B1C Liquid (e.g. waste water) 12 in a tank 13 is introduced into an at least partially immersed vessel 11 as by an impeller pump 17, the level of the liquid in the vessel being depressed by oxygen-containing gas introduced under pressure at 29. The liquid falls by gravity over a weir 21 into a turbulent mixing zone 24 where it entrains gas, passes under a baffle 23 and over another baffle 27 into a quiescent zone 25 where it circulates; undissolved gas bubbles rise to the surface and are recycled to the mixing zone. Waste gas containing impurities may be vented intermittently or continuously through a vent 30 which may be valve controlled. Treated liquid leaves the vessel 11 through a flap valve 31 controlled by a rod 32, and through a nozzle 33 rotatable by a tube 34 and having a flap valve controlled by a rod 35, whereby sludge in the tank 13 may be agitated and circulated. The tube and rod 34, 35 are surrounded by a bubble trap and pressure relief device 37, 39. As shown, the vessel 11 is paired with a similar vessel 11', the impeller pump supplying both. The gravitational fall zone may be replaced by an eductor or other static gas-liquid mixer. In a modification. (Fig. 7, not shown) the vessel is a wholly immersed bell.
GB4680674A 1973-11-06 1974-10-29 Method and apparatus for treating wastewater Expired GB1450612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41340973A 1973-11-06 1973-11-06

Publications (1)

Publication Number Publication Date
GB1450612A true GB1450612A (en) 1976-09-22

Family

ID=23637112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4680674A Expired GB1450612A (en) 1973-11-06 1974-10-29 Method and apparatus for treating wastewater

Country Status (20)

Country Link
JP (1) JPS555398B2 (en)
AR (1) AR209918A1 (en)
AT (1) AT338708B (en)
AU (1) AU472869B2 (en)
BE (1) BE821507A (en)
BR (1) BR7409231A (en)
CA (3) CA1040759A (en)
CH (1) CH608470A5 (en)
DD (1) DD116213A5 (en)
DE (1) DE2452295C3 (en)
ES (1) ES430997A1 (en)
FR (1) FR2249844B1 (en)
GB (1) GB1450612A (en)
IL (1) IL45829A (en)
IN (1) IN142402B (en)
IT (1) IT1022500B (en)
NL (1) NL7413332A (en)
PL (1) PL92389B1 (en)
SE (1) SE7411730L (en)
ZA (1) ZA746555B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027912A1 (en) * 1979-10-02 1981-05-06 Union Carbide Corporation Apparatus for contacting liquid with a gas
EP0027911A1 (en) * 1979-10-02 1981-05-06 Union Carbide Corporation Apparatus for contacting liquid with a gas
US20130150268A1 (en) * 2011-12-09 2013-06-13 Advanced Stimulation Technology, Inc. Gel hydration unit
CN108499413A (en) * 2018-06-15 2018-09-07 浙江乐匠新材料科技有限公司 A kind of water paint production paint mixing tank

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983031A (en) * 1975-04-02 1976-09-28 Airco, Inc. Methods and apparatus for controlling the supply of a feed gas to dissolution devices
FR2627864A1 (en) * 1988-02-29 1989-09-01 Asulab Sa DISPLAY DEVICE FOR MEASURING INSTRUMENT
CN103880154B (en) * 2014-02-17 2016-04-20 江苏亚洲环保有限公司 A kind of integrated oxygen enrichment bio-reactor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371033A (en) * 1965-08-11 1968-02-27 Fmc Corp Method of treating sewage and apparatus therefor
US3732160A (en) * 1968-08-21 1973-05-08 Research Corp Submerged filter-horizontal flow mode

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027912A1 (en) * 1979-10-02 1981-05-06 Union Carbide Corporation Apparatus for contacting liquid with a gas
EP0027911A1 (en) * 1979-10-02 1981-05-06 Union Carbide Corporation Apparatus for contacting liquid with a gas
US20130150268A1 (en) * 2011-12-09 2013-06-13 Advanced Stimulation Technology, Inc. Gel hydration unit
US8899823B2 (en) * 2011-12-09 2014-12-02 Advanced Stimulation Technology, Inc. Gel hydration unit
US9981231B2 (en) 2011-12-09 2018-05-29 Advanced Stimulation Technology, Inc. Gel hydration unit
CN108499413A (en) * 2018-06-15 2018-09-07 浙江乐匠新材料科技有限公司 A kind of water paint production paint mixing tank

Also Published As

Publication number Publication date
FR2249844B1 (en) 1979-08-03
JPS555398B2 (en) 1980-02-06
ES430997A1 (en) 1977-01-16
DD116213A5 (en) 1975-11-12
CA1053766A (en) 1979-05-01
ZA746555B (en) 1975-11-26
ATA890674A (en) 1976-12-15
SE7411730L (en) 1975-05-07
DE2452295B2 (en) 1978-02-02
IL45829A (en) 1977-03-31
FR2249844A1 (en) 1975-05-30
JPS5079167A (en) 1975-06-27
AU472869B2 (en) 1976-05-06
PL92389B1 (en) 1977-04-30
BE821507A (en) 1975-04-25
CH608470A5 (en) 1979-01-15
BR7409231A (en) 1976-05-11
NL7413332A (en) 1975-05-09
AU7495674A (en) 1976-05-06
IL45829A0 (en) 1974-12-31
AT338708B (en) 1977-09-12
CA1044603A (en) 1978-12-19
AR209918A1 (en) 1977-06-15
CA1040759A (en) 1978-10-17
IN142402B (en) 1977-07-02
DE2452295A1 (en) 1975-05-15
IT1022500B (en) 1978-03-20
DE2452295C3 (en) 1979-10-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee