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WO2014170423A3 - Water filtration process - Google Patents

Water filtration process Download PDF

Info

Publication number
WO2014170423A3
WO2014170423A3 PCT/EP2014/057868 EP2014057868W WO2014170423A3 WO 2014170423 A3 WO2014170423 A3 WO 2014170423A3 EP 2014057868 W EP2014057868 W EP 2014057868W WO 2014170423 A3 WO2014170423 A3 WO 2014170423A3
Authority
WO
WIPO (PCT)
Prior art keywords
oxide
water filtration
particles
processes
filtration process
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.)
Ceased
Application number
PCT/EP2014/057868
Other languages
French (fr)
Other versions
WO2014170423A2 (en
Inventor
Jacek Malisz
Hartwig Voss
Martin Heijnen
Edoardo Menozzi
Samira Nozari
Jürgen WEISER
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of WO2014170423A2 publication Critical patent/WO2014170423A2/en
Publication of WO2014170423A3 publication Critical patent/WO2014170423A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0079—Manufacture of membranes comprising organic and inorganic components
    • B01D67/00793—Dispersing a component, e.g. as particles or powder, in another component
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/148—Organic/inorganic mixed matrix membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/02—Inorganic material
    • B01D71/024—Oxides
    • 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
    • B01D2321/04—Backflushing
    • 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
    • B01D2321/162—Use of acids
    • 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
    • B01D2321/164—Use of bases
    • 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
    • B01D2321/166—Use of enzymatic 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
    • B01D2321/16—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
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/48—Antimicrobial properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Filtration processes, especially for water filtration wherein a liquid permeates an asymmetric polymer membrane, are effectively carried out using membranes equipped within organic particles of zinc oxide, or a composite comprising one oxide selected from zinc oxide, aluminum oxide, titanium oxide, silicium oxide, zirconium oxide, and a metal and/or further metal oxide. These particles are largely removed by cleaning operations using chemically enhanced backwash. The processes show improved permeate flux, improved membrane stability, and permit reduced maintenance intervals of filter modules.
PCT/EP2014/057868 2013-04-19 2014-04-17 Water filtration process Ceased WO2014170423A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13164493 2013-04-19
EP13164493.2 2013-04-19

Publications (2)

Publication Number Publication Date
WO2014170423A2 WO2014170423A2 (en) 2014-10-23
WO2014170423A3 true WO2014170423A3 (en) 2014-12-04

Family

ID=48143131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/057868 Ceased WO2014170423A2 (en) 2013-04-19 2014-04-17 Water filtration process

Country Status (1)

Country Link
WO (1) WO2014170423A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105983347A (en) * 2015-02-25 2016-10-05 鞍钢股份有限公司 Backwashing system and method for ultrafiltration device of steelmaking desalted water station
JP6838436B2 (en) * 2017-03-14 2021-03-03 株式会社明電舎 Filtration membrane evaluation method and filtration membrane evaluation device
WO2018234838A1 (en) * 2017-06-20 2018-12-27 Rhodia Poliamida E Especialidades S.A. FILTRATION MEDIUM, METHODS OF PRODUCTION AND USES THEREOF
CN110252299A (en) * 2019-06-27 2019-09-20 太原理工大学 A kind of ternary visible light Ag/Ag2O/ZnO catalyst and its preparation method and application
CN114130221B (en) * 2021-12-01 2022-11-18 山东融星膜材料科技有限公司 High-pressure-resistant polypropylene hollow fiber deoxygenation membrane and preparation method and application thereof
CN114132898B (en) * 2021-12-02 2023-01-17 海南昂扬科技有限公司 Method for recovering hydrobromic acid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5102917A (en) * 1990-09-14 1992-04-07 Cpc Engineering Corporation Porous polysulfone media suitable for filtration
WO2010031877A1 (en) * 2008-09-22 2010-03-25 Nanologica Ab Hybrid silica -polycarbonate porous membranes and porous polycarbonate replicas obtained thereof
US20110024355A1 (en) * 2007-10-10 2011-02-03 Polymers Crc Ltd. Antimicrobial membranes
EP2492000A1 (en) * 2009-10-22 2012-08-29 Asahi Kasei Chemicals Corporation Method for immersion-type washing of separation membrane device and system for immersion-type washing of separation membrane device
US20120251868A1 (en) * 2009-11-06 2012-10-04 Sumitomo Chemical Company, Limited Laminated film and nonaqueous electrolyte secondary battery
US20130004454A1 (en) * 2010-03-09 2013-01-03 Polymers Crc Ltd. Polyurethane block copolymer based on poly siloxane tenside for membranes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012486C2 (en) 1999-07-01 2001-01-03 Search B V S A method of manufacturing multichannel membranes, multichannel membranes and their use in separation methods.
US8207070B2 (en) 2000-11-22 2012-06-26 Techmer Pm, Llc Wettable polyolefin fibers and fabrics
SG178353A1 (en) 2009-08-27 2012-03-29 Polymers Crc Ltd Nano silver-zinc oxide composition
AR080385A1 (en) 2010-03-09 2012-04-04 Polymers Crc Ltd PROCEDURE FOR THE PREPARATION OF AN ANTIMICROBIAL ARTICLE

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5102917A (en) * 1990-09-14 1992-04-07 Cpc Engineering Corporation Porous polysulfone media suitable for filtration
US20110024355A1 (en) * 2007-10-10 2011-02-03 Polymers Crc Ltd. Antimicrobial membranes
WO2010031877A1 (en) * 2008-09-22 2010-03-25 Nanologica Ab Hybrid silica -polycarbonate porous membranes and porous polycarbonate replicas obtained thereof
EP2492000A1 (en) * 2009-10-22 2012-08-29 Asahi Kasei Chemicals Corporation Method for immersion-type washing of separation membrane device and system for immersion-type washing of separation membrane device
US20120251868A1 (en) * 2009-11-06 2012-10-04 Sumitomo Chemical Company, Limited Laminated film and nonaqueous electrolyte secondary battery
US20130004454A1 (en) * 2010-03-09 2013-01-03 Polymers Crc Ltd. Polyurethane block copolymer based on poly siloxane tenside for membranes

Also Published As

Publication number Publication date
WO2014170423A2 (en) 2014-10-23

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