IT1067580B - Processo e dispositivo per la formazione di bolle gassose,per esempio a scopo di flottazione - Google Patents

Processo e dispositivo per la formazione di bolle gassose,per esempio a scopo di flottazione

Info

Publication number
IT1067580B
IT1067580B IT3106676A IT3106676A IT1067580B IT 1067580 B IT1067580 B IT 1067580B IT 3106676 A IT3106676 A IT 3106676A IT 3106676 A IT3106676 A IT 3106676A IT 1067580 B IT1067580 B IT 1067580B
Authority
IT
Italy
Prior art keywords
water
flotation
formation
gas bubbles
volume
Prior art date
Application number
IT3106676A
Other languages
English (en)
Original Assignee
Cem Comp Electro Mec
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 Cem Comp Electro Mec filed Critical Cem Comp Electro Mec
Application granted granted Critical
Publication of IT1067580B publication Critical patent/IT1067580B/it

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
    • C02F3/1294—"Venturi" aeration means
    • 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
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and 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
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1431—Dissolved air flotation machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/24—Pneumatic
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F3/20—Activated sludge processes using diffusers
    • 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
    • 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)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Biotechnology (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Water Treatments (AREA)
  • Gas Separation By Absorption (AREA)
IT3106676A 1976-01-16 1976-12-31 Processo e dispositivo per la formazione di bolle gassose,per esempio a scopo di flottazione IT1067580B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7601113A FR2338071A1 (fr) 1976-01-16 1976-01-16 Procede et dispositif pour la formation de bulles gazeuses, par exemple en vue de la flottation

Publications (1)

Publication Number Publication Date
IT1067580B true IT1067580B (it) 1985-03-16

Family

ID=9168028

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3106676A IT1067580B (it) 1976-01-16 1976-12-31 Processo e dispositivo per la formazione di bolle gassose,per esempio a scopo di flottazione

Country Status (8)

Country Link
BE (1) BE850362A (it)
CH (1) CH609581A5 (it)
DE (1) DE2701702A1 (it)
FR (1) FR2338071A1 (it)
GB (1) GB1549523A (it)
IT (1) IT1067580B (it)
NL (1) NL7700350A (it)
SE (1) SE7700226L (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101221C2 (de) * 1981-01-16 1983-09-22 J.M. Voith Gmbh, 7920 Heidenheim "Einrichtung zur Schaumflotation"
FR2550469B1 (fr) * 1983-08-09 1985-10-04 Alsthom Atlantique Injecteur de microbulles
FR2552343B1 (fr) * 1983-09-27 1989-02-03 Rech Geolog Miniere Procede et appareil de separation par flottation
CA1329277C (en) * 1986-09-25 1994-05-03 Graeme John Jameson Column flotation method and apparatus
ZA916774B (en) * 1990-08-27 1992-05-27 Univ Newcastle Res Ass Aeration apparatus with diffuser
DE4224912A1 (de) * 1991-12-02 1993-06-03 Tech Resources Pty Ltd Reaktor
JP3161734B2 (ja) 1991-12-02 2001-04-25 テクノロジカル リソーシィズ プロプライエタリー リミテッド 反応装置
DE4206206C2 (de) * 1992-02-28 1993-11-25 Voith Gmbh J M Verfahren zur Reinigung des Rejekts aus der Deinkingflotation
EP0606432B1 (en) * 1992-07-09 1997-03-12 Technological Resources Pty. Ltd. A reactor
JPH06134449A (ja) * 1992-10-22 1994-05-17 Tokai Kosan:Kk 低濃度汚水の浄化方法および装置
AT410406B (de) * 2001-09-17 2003-04-25 Andritz Ag Maschf Verfahren und vorrichtung zur belüftung einer flüssigkeit mit gas

Also Published As

Publication number Publication date
DE2701702A1 (de) 1977-07-28
CH609581A5 (en) 1979-03-15
FR2338071B1 (it) 1979-07-13
FR2338071A1 (fr) 1977-08-12
SE7700226L (sv) 1977-07-17
NL7700350A (nl) 1977-07-19
GB1549523A (en) 1979-08-08
BE850362A (fr) 1977-05-02

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