WO2004076358A3 - Dissolved air flotation system - Google Patents

Dissolved air flotation system Download PDF

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Publication number
WO2004076358A3
WO2004076358A3 PCT/US2004/006145 US2004006145W WO2004076358A3 WO 2004076358 A3 WO2004076358 A3 WO 2004076358A3 US 2004006145 W US2004006145 W US 2004006145W WO 2004076358 A3 WO2004076358 A3 WO 2004076358A3
Authority
WO
WIPO (PCT)
Prior art keywords
dissolved air
air flotation
flotation system
tank
flotation
Prior art date
Application number
PCT/US2004/006145
Other languages
French (fr)
Other versions
WO2004076358A2 (en
Inventor
David P Lambert
James J Houtz
Original Assignee
Sionix Corp
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
Priority claimed from US10/376,573 external-priority patent/US7033495B2/en
Priority claimed from US10/376,574 external-priority patent/US6921478B2/en
Application filed by Sionix Corp filed Critical Sionix Corp
Publication of WO2004076358A2 publication Critical patent/WO2004076358A2/en
Publication of WO2004076358A3 publication Critical patent/WO2004076358A3/en

Links

Classifications

    • 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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0027—Floating sedimentation devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0042—Baffles or guide plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/08—Settling tanks with single outlets for the separated liquid provided with flocculating compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2433—Discharge mechanisms for floating particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2433—Discharge mechanisms for floating particles
    • B01D21/2438—Discharge mechanisms for floating particles provided with scrapers on the liquid surface for removing floating particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2444—Discharge mechanisms for the classified liquid
    • 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
    • B03D1/08—Subsequent treatment of concentrated product
    • B03D1/082—Subsequent treatment of concentrated product of the froth product, e.g. washing
    • 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
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1462—Discharge mechanisms for the froth
    • 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
    • B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/08—Mobile separation devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)

Abstract

A dissolved air flotation system (1) and method for purifying water. The system (1) includes a flocculation tank (4), a flotation tank (2), and a collector pan (21) for receiving floats from the flotation tank (2) via a skimmer assembly (6). The system (1) is self-contained within a standard shipping container (40), with all components disposed in-line.
PCT/US2004/006145 2003-02-27 2004-02-26 Dissolved air flotation system WO2004076358A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/376,574 2003-02-27
US10/376,573 US7033495B2 (en) 2003-02-27 2003-02-27 Self contained dissolved air flotation system
US10/376,573 2003-02-27
US10/376,574 US6921478B2 (en) 2003-02-27 2003-02-27 Dissolved air flotation system

Publications (2)

Publication Number Publication Date
WO2004076358A2 WO2004076358A2 (en) 2004-09-10
WO2004076358A3 true WO2004076358A3 (en) 2005-04-21

Family

ID=32930211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/006145 WO2004076358A2 (en) 2003-02-27 2004-02-26 Dissolved air flotation system

Country Status (1)

Country Link
WO (1) WO2004076358A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731355B (en) * 2017-02-07 2019-04-16 曹小高 Full-automatic flue gas separates and recovers integration apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113354136A (en) * 2021-05-14 2021-09-07 青岛千盛环保科技有限公司 Rapid treatment device and method for urban sewage
CN117142557B (en) * 2023-09-22 2024-04-02 无锡万川环境装备技术有限公司 Air-floating dissolved air tank

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1301532A (en) * 1918-07-03 1919-04-22 Henry W Allen Method of and apparatus for separating minerals.
US2793185A (en) * 1952-12-17 1957-05-21 Albrektsson John Oscar Georg Method and apparatus for introduction of gas into water to be treated by flotation
US2994432A (en) * 1957-06-03 1961-08-01 Pfaudler Permutit Inc Control for flotation separation systems
US3313795A (en) * 1965-03-01 1967-04-11 Purac Ab Method of treating a liquid containing dissolved proteinaceous constituents
US4100066A (en) * 1975-05-07 1978-07-11 Carrier Drysys Limited Treating paint waste solids
US4563274A (en) * 1983-09-12 1986-01-07 Haden Drysys International Limited Separation system including a floatation tank having level control means
US5080802A (en) * 1990-05-09 1992-01-14 Cairo Jr John A Induced gas liquid coalescer and flotation separator
CA2183146A1 (en) * 1996-08-12 1998-02-13 Thomas C. Bower Method and apparatus for management wastewater effluent from various wastewater effluent sources

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1301532A (en) * 1918-07-03 1919-04-22 Henry W Allen Method of and apparatus for separating minerals.
US2793185A (en) * 1952-12-17 1957-05-21 Albrektsson John Oscar Georg Method and apparatus for introduction of gas into water to be treated by flotation
US2994432A (en) * 1957-06-03 1961-08-01 Pfaudler Permutit Inc Control for flotation separation systems
US3313795A (en) * 1965-03-01 1967-04-11 Purac Ab Method of treating a liquid containing dissolved proteinaceous constituents
US4100066A (en) * 1975-05-07 1978-07-11 Carrier Drysys Limited Treating paint waste solids
US4563274A (en) * 1983-09-12 1986-01-07 Haden Drysys International Limited Separation system including a floatation tank having level control means
US5080802A (en) * 1990-05-09 1992-01-14 Cairo Jr John A Induced gas liquid coalescer and flotation separator
CA2183146A1 (en) * 1996-08-12 1998-02-13 Thomas C. Bower Method and apparatus for management wastewater effluent from various wastewater effluent sources

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106731355B (en) * 2017-02-07 2019-04-16 曹小高 Full-automatic flue gas separates and recovers integration apparatus

Also Published As

Publication number Publication date
WO2004076358A2 (en) 2004-09-10

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