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Retrievable diffuser module with truss construction

Info

Publication number
WO2009051867A4
WO2009051867A4 PCT/US2008/069024 US2008069024W WO2009051867A4 WO 2009051867 A4 WO2009051867 A4 WO 2009051867A4 US 2008069024 W US2008069024 W US 2008069024W WO 2009051867 A4 WO2009051867 A4 WO 2009051867A4
Authority
WO
Grant status
Application
Patent type
Prior art keywords
pipe
diffuser
header
gas
module
Prior art date
Application number
PCT/US2008/069024
Other languages
French (fr)
Other versions
WO2009051867A1 (en )
Inventor
Charles E Tharp
Original Assignee
Environmental Dynamics Inc
Charles E Tharp
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04106Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids the gas being introduced by bubbling, e.g. within receptacles or tanks
    • B01F3/04113Arrangement or manipulation of the gas bubbling devices
    • B01F3/0412Mounting the bubbling devices or the diffusers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04106Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids the gas being introduced by bubbling, e.g. within receptacles or tanks
    • B01F3/04113Arrangement or manipulation of the gas bubbling devices
    • B01F3/04241Diffusers
    • B01F3/04269Diffusers consisting of flexible porous or perforated material, e.g. fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04106Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids the gas being introduced by bubbling, e.g. within receptacles or tanks
    • B01F3/04113Arrangement or manipulation of the gas bubbling devices
    • B01F3/0412Mounting the bubbling devices or the diffusers
    • B01F2003/04184Mounting the bubbling devices or the diffusers characterized by the way in which the bubbling devices are mounted within the receptacle
    • B01F2003/04212Mounting the bubbling devices or the diffusers characterized by the way in which the bubbling devices are mounted within the receptacle the bubbling devices being provided with ballast to keep them floating under the surface, i.e. when the bubbling devices are lighter than the liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04106Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids the gas being introduced by bubbling, e.g. within receptacles or tanks
    • B01F3/04113Arrangement or manipulation of the gas bubbling devices
    • B01F3/04241Diffusers
    • B01F2003/04283Diffusers characterized by the shape of the diffuser element
    • B01F2003/04319Diffusers characterized by the shape of the diffuser element being tubes, tubular elements, cylindrical elements, set of tubes

Abstract

A diffuser module and system for diffusing gas into liquid such as in aeration/mixing of wastewater. Each module has a header pipe and diffusers which receive gas from the header pipe. Each header pipe is equipped with a truss for enhanced structural strength and resistance to bending. The truss may take the form of a buoyancy/ballast pipe connected with the header pipe by purlins.

Claims

AMENDED CLAIMS received by the International Bureau on 28 April 2009 (28.04.2009)
1. A diffuser module for applying gas to liquid, comprising: a diffuser assembly including a header pipe and a plurality of diffusers connected with said header pipe to receive gas therefrom; a gas supply line extending to said header pipe to supply gas thereto; a beam member; and a plurality of rigid purlins interconnecting said header pipe and beam.
2. A diffuser module as set forth in claim 1, wherein said beam member comprises a pipe providing a buoyancy chamber and including a buoyancy line connected with said buoyancy chamber for selectively supplying gas thereto for effecting a buoyant condition of said diffuser assembly.
3. A diffuser module as set forth in claim 2, wherein said pipe has opposite ends, and including a cap on one of said ends and a flow control opening on the other of said ends through which liquid enters and is discharged from said buoyancy chamber.
4. A diffuser module as set forth in claim 3, wherein said flow control opening is at an elevation lower than said buoyancy chamber.
5. A diffuser module as set forth in claim 1, wherein said beam member comprises a pipe having open opposite ends to allow liquid to fill said pipe when, submerged.
6. A diffuser as set forth in claim 1, wherein said beam member is located above and is oriented substantially parallel to said header pipe.
7. A diffuser module as set forth in claim 1, wherein said beam member is substantially parallel to said header pipe.
S. A diffuser module for applying gas to liquid, comprising: a diffuser assembly including a header pipe and a plurality of elongated dϊffusers connected to receive gas therefrom; a gas supply line for supplying gas to said header pipe; and a truss connected with said header pipe for structural enhancement, said truss including a beam spaced from and substantially parallel to said header pipe and a plurality of purlins interconnecting said beam and said header pipe.
9. A diffuser module as set forth in claim 8, wherein said beam comprises a pipe providing a buoyancy chamber and including a buoyancy line for applying gas to and exhausting gas from said buoyancy chamber.
10. A diffuser module as set forth in claim 9, wherein said pipe has opposite ends, and including a cap on one of said ends and a flow control opening on the other of said ends through which liquid enters and is discharged from said buoyancy chamber.
11 A diffuser module as set forth in claim 10, wherein said flow control opening is at an elevation lower than said buoyancy chamber.
12. A diffuser module as set forth in claim 8, wherein said beam comprises a pipe having open opposite ends to allow liquid to fill said pipe when submerged.
13. Apparatus for applying gas to a liquid, comprising: a plurality of diffuser modules for immersion in the liquid, each module including a header pipe and a trass connected with said header pipe for structural enhancement thereof, said truss including a beam spaced from and substantially parallel to said header pipe and a plurality of purlins interconnecting said beam and said header pipe; a plurality of diffuser pipes extending from each of said header pipes to receive gas therefrom for discharge into the liquid; and a gas supply line extending to each header pipe to supply gas thereto.
14. Apparatus as set forth in claim 13, wherein said beam comprises a pipe providing a buoyancy chamber and including a buoyancy line for applying gas to and exhausting gas from said buoyancy chamber.
15. A diffuser module as set forth, in claim 14, wherein said pipe has opposite ends, and including a cap on one of said ends and a flow control opening on the other of said ends through which liquid enters and is discharged from said buoyancy chamber.
16. A diffuser module as set forth in claim 15, wherein said flow control opening is at an elevation lower than said buoyancy chamber.
17. A diffuser module as set forth in claim 13, wherein said beam comprises a pipe having open opposite ends to allow liquid to fill said pipe when submerged.
PCT/US2008/069024 2007-10-16 2008-07-02 Retrievable diffuser module with truss construction WO2009051867A4 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11873245 US8016272B2 (en) 2007-10-16 2007-10-16 Retrievable diffuser module with truss construction
US11/873,245 2007-10-16

Publications (2)

Publication Number Publication Date
WO2009051867A1 true WO2009051867A1 (en) 2009-04-23
WO2009051867A4 true true WO2009051867A4 (en) 2009-06-25

Family

ID=40533405

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/069024 WO2009051867A4 (en) 2007-10-16 2008-07-02 Retrievable diffuser module with truss construction

Country Status (2)

Country Link
US (2) US8016272B2 (en)
WO (1) WO2009051867A4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8011643B2 (en) * 2007-03-13 2011-09-06 Environmental Dynamics, Inc. Diffuser assembly with buoyancy vessel
US8016272B2 (en) * 2007-10-16 2011-09-13 Environmental Dynamics, Inc. Retrievable diffuser module with truss construction

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650810A (en) 1947-02-26 1953-09-01 Carl H Nordell Means for raising and lowering diffuser tubes
US2989186A (en) 1958-06-06 1961-06-20 Union Tank Car Co Diffuser assembly for sewage disposal plants
US3174733A (en) 1961-04-14 1965-03-23 Fmc Corp Swing diffuser
US3802676A (en) * 1971-08-03 1974-04-09 Water Pollution Control Corp Method for installing aeration systems in sewage treatment tanks
US4012470A (en) * 1973-03-19 1977-03-15 Water Pollution Control Corporation Sewage treatment aeration systems
DE2850119C2 (en) 1978-11-18 1984-10-04 Wilhelm Roediger Gmbh + Co Haustechnik, 6450 Hanau, De
US4563277B1 (en) 1982-10-18 1996-08-27 Environmental Dynamics Inc Apparatus for aerating and mixing waste water
DE3767372D1 (en) 1986-06-13 1991-02-21 Nordenskjoeld Reinhard Von Dr A process for the biological purification of waste waters.
RU2101233C1 (en) 1991-08-30 1998-01-10 Ацон Техник А.С. Device for ventilation of storage tank filled with liquid
US5330688A (en) * 1993-05-27 1994-07-19 Enviroquip International, Inc. Flexible diffuser assembly for aeration applications
US5587114A (en) 1995-06-06 1996-12-24 Environmental Dynamics, Inc. Aeration system employing retrievable aeration modules
US5846412A (en) 1995-11-17 1998-12-08 Environmental Dynamics, Inc. Diffuser construction and mounting arrangement
CA2196630A1 (en) * 1996-07-25 1998-01-25 Dwaine S. Bundy Method and means for odor control in waste water lagoons
US5945040A (en) * 1997-03-13 1999-08-31 Meurer Industries, Inc. Apparatus for compound movement of an aeration unit
US5906774A (en) * 1997-05-20 1999-05-25 Parkson Corporation Submerged diffuser lifting arrangement
US5800705A (en) 1997-08-07 1998-09-01 United States Filter Corporation Heat exchanger for aeration tank
US6086056A (en) * 1998-04-29 2000-07-11 Leask; Jim Float sink header
CA2313135C (en) 2000-06-29 2008-03-25 Jim Leask Float sink header
US6514886B1 (en) 2000-09-22 2003-02-04 Newport Fab, Llc Method for elimination of contaminants prior to epitaxy
US7014176B2 (en) 2003-04-14 2006-03-21 Rf Delaware, Inc. Fluid distribution system and associated methods
US7267766B2 (en) * 2003-09-15 2007-09-11 Pro-Act Microbial, Inc. Method and apparatus for aerating a surface layer in a stratified liquid body
US7862014B2 (en) 2005-11-30 2011-01-04 Siemens Water Technologies Corp. Hybrid diffuser system headloss balancing
US8011643B2 (en) * 2007-03-13 2011-09-06 Environmental Dynamics, Inc. Diffuser assembly with buoyancy vessel
US8016272B2 (en) * 2007-10-16 2011-09-13 Environmental Dynamics, Inc. Retrievable diffuser module with truss construction
US7934704B2 (en) * 2007-10-16 2011-05-03 Environmental Dynamics, Inc. Retrievable diffuser module with internal ballast/buoyancy chamber

Also Published As

Publication number Publication date Type
US8016272B2 (en) 2011-09-13 grant
WO2009051867A1 (en) 2009-04-23 application
US20110278746A1 (en) 2011-11-17 application
US20090096117A1 (en) 2009-04-16 application

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