WO2014132069A3 - Reverse osmosis and nanofiltration membrane cleaning - Google Patents

Reverse osmosis and nanofiltration membrane cleaning Download PDF

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Publication number
WO2014132069A3
WO2014132069A3 PCT/GB2014/050592 GB2014050592W WO2014132069A3 WO 2014132069 A3 WO2014132069 A3 WO 2014132069A3 GB 2014050592 W GB2014050592 W GB 2014050592W WO 2014132069 A3 WO2014132069 A3 WO 2014132069A3
Authority
WO
WIPO (PCT)
Prior art keywords
reverse osmosis
bubbles
cleaning
venturi device
nanofiltration membrane
Prior art date
Application number
PCT/GB2014/050592
Other languages
French (fr)
Other versions
WO2014132069A2 (en
Inventor
Maqsood Fazel
Stephen Chesters
Original Assignee
Genesys International Limited
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 GB1303609.0A external-priority patent/GB2512280B/en
Priority claimed from US13/780,046 external-priority patent/US20140238936A1/en
Application filed by Genesys International Limited filed Critical Genesys International Limited
Publication of WO2014132069A2 publication Critical patent/WO2014132069A2/en
Publication of WO2014132069A3 publication Critical patent/WO2014132069A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/168—Use of other chemical agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/18—Use of gases
    • B01D2321/185—Aeration
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A method of cleaning a reverse osmosis or nanofiltration membranes comprises supplying bubbles suspended in a stream of cleaning solution to the membrane. The bubbles can be supplied in pulses and/or the aerated solution may be evenly distributed over the membrane surface. The bubbles can be produced by a venturi device. A venturi device for use in the method has an air inlet provided with a plurality of tubes and a reverse osmosis plant in which the method can be carried out includes a venturi device connected in-line between the cleaning tank and the fluid inlet.
PCT/GB2014/050592 2013-02-28 2014-02-28 Reverse osmosis and nanofiltration membrane cleaning WO2014132069A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13/780,046 2013-02-28
GB1303609.0A GB2512280B (en) 2013-02-28 2013-02-28 Reverse osmosis and nanofiltration membrane cleaning
GB1303609.0 2013-02-28
US13/780,046 US20140238936A1 (en) 2013-02-28 2013-02-28 Reverse osmosis and nanofiltration membrane cleaning

Publications (2)

Publication Number Publication Date
WO2014132069A2 WO2014132069A2 (en) 2014-09-04
WO2014132069A3 true WO2014132069A3 (en) 2014-10-23

Family

ID=50241473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2014/050592 WO2014132069A2 (en) 2013-02-28 2014-02-28 Reverse osmosis and nanofiltration membrane cleaning

Country Status (1)

Country Link
WO (1) WO2014132069A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY180705A (en) * 2014-02-05 2020-12-07 Toray Industries Method for producing sugar solution
BR112017008397B1 (en) 2014-10-22 2022-08-09 Koch Separation Solutions, Inc MEMBRANE FILTER MODULE CONFIGURED TO TREAT A LIQUID CONTAINED IN A TANK AT AMBIENT PRESSURE AND MEMBRANE FILTER
USD779632S1 (en) 2015-08-10 2017-02-21 Koch Membrane Systems, Inc. Bundle body
WO2023028281A1 (en) * 2021-08-26 2023-03-02 Massachusetts Institute Of Technology Harnessing metal ions from brines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006066350A1 (en) * 2004-12-24 2006-06-29 Siemens Water Technologies Corp. Simple gas scouring method and apparatus
WO2008053700A1 (en) * 2006-10-30 2008-05-08 Sekisui Chemical Co., Ltd. Method of desalting, apparatus for desalting, and bubble generator
JP2008207158A (en) * 2007-02-28 2008-09-11 Mrc Home Products Kk Water purifying device
CN101402021A (en) * 2008-10-30 2009-04-08 上海交通大学 Pressurizing dissolved air flotation cleaning method for organic pollutant on reverse osmosis membrane
US20120074059A1 (en) * 2010-09-27 2012-03-29 Sumitomo Electric Industries, Ltd. Cleaning method for filtration membrane and membrane filtration apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006066350A1 (en) * 2004-12-24 2006-06-29 Siemens Water Technologies Corp. Simple gas scouring method and apparatus
WO2008053700A1 (en) * 2006-10-30 2008-05-08 Sekisui Chemical Co., Ltd. Method of desalting, apparatus for desalting, and bubble generator
JP2008207158A (en) * 2007-02-28 2008-09-11 Mrc Home Products Kk Water purifying device
CN101402021A (en) * 2008-10-30 2009-04-08 上海交通大学 Pressurizing dissolved air flotation cleaning method for organic pollutant on reverse osmosis membrane
US20120074059A1 (en) * 2010-09-27 2012-03-29 Sumitomo Electric Industries, Ltd. Cleaning method for filtration membrane and membrane filtration apparatus

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHESTERS ET AL: "Innovations in the inhibition and cleaning of reverse osmosis membrane scaling and fouling", DESALINATION, ELSEVIER, AMSTERDAM, NL, vol. 238, no. 1-3, 1 March 2009 (2009-03-01), pages 22 - 29, XP025884087, ISSN: 0011-9164, [retrieved on 20090123], DOI: 10.1016/J.DESAL.2008.01.031 *
CORNELISSEN E R ET AL: "Optimization of air/water cleaning (AWC) in spiral wound elements", DESALINATION, ELSEVIER, AMSTERDAM, NL, vol. 236, no. 1-3, 31 January 2009 (2009-01-31), pages 266 - 272, XP025839585, ISSN: 0011-9164, [retrieved on 20081224], DOI: 10.1016/J.DESAL.2007.10.076 *
DATABASE WPI Week 200931, Derwent World Patents Index; AN 2009-H43989, XP002723981 *

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Publication number Publication date
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