CA2766352C - Improved hybrid tfc ro membranes with nitrogen additives - Google Patents

Improved hybrid tfc ro membranes with nitrogen additives Download PDF

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Publication number
CA2766352C
CA2766352C CA2766352A CA2766352A CA2766352C CA 2766352 C CA2766352 C CA 2766352C CA 2766352 A CA2766352 A CA 2766352A CA 2766352 A CA2766352 A CA 2766352A CA 2766352 C CA2766352 C CA 2766352C
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CA
Canada
Prior art keywords
membrane
additives
flux
additive
layer
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.)
Active
Application number
CA2766352A
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English (en)
French (fr)
Other versions
CA2766352A1 (en
Inventor
Christopher James Kurth
Jeffrey Alan Koehler
Meijuan Zhou
Brett Anderson Holmberg
Robert Leon Burk
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.)
LG NanoH2O LLC
Original Assignee
NanoH2O Inc
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 PCT/US2009/060924 external-priority patent/WO2010123518A1/en
Application filed by NanoH2O Inc filed Critical NanoH2O Inc
Publication of CA2766352A1 publication Critical patent/CA2766352A1/en
Application granted granted Critical
Publication of CA2766352C publication Critical patent/CA2766352C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • 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
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • 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
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • 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
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B01D69/1251—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction by interfacial polymerisation
    • 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
    • B01D71/06—Organic material
    • B01D71/56—Polyamides, e.g. polyester-amides
    • 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
    • B01D2321/167—Use of scale inhibitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/30—Cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/38—Graft polymerization
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
CA2766352A 2009-06-29 2010-06-29 Improved hybrid tfc ro membranes with nitrogen additives Active CA2766352C (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US22121409P 2009-06-29 2009-06-29
US61/221,214 2009-06-29
PCT/US2009/060924 WO2010123518A1 (en) 2009-04-15 2009-10-15 Improved tfc memberanes with nanoparticles and other additives
USPCT/US2009/060927 2009-10-15
PCT/US2009/060927 WO2010120325A1 (en) 2009-04-15 2009-10-15 Improved tfc membranes with alkaline earth metal and other additives
USPCT/US2009/060924 2009-10-15
PCT/US2009/061109 WO2010120327A1 (en) 2009-04-15 2009-10-16 Improved tfc membranes with hydrolyzed and other additives
USPCT/US2009/061109 2009-10-16
USPCT/US2009/060929 2009-10-16
PCT/US2009/060929 WO2010120326A1 (en) 2009-02-05 2009-10-16 Improved tfc membranes with hydrolized additives
PCT/US2010/040417 WO2011008549A2 (en) 2009-06-29 2010-06-29 Improved hybrid tfc ro membranes with nitrogen additives

Publications (2)

Publication Number Publication Date
CA2766352A1 CA2766352A1 (en) 2011-01-20
CA2766352C true CA2766352C (en) 2018-09-18

Family

ID=43450091

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2766352A Active CA2766352C (en) 2009-06-29 2010-06-29 Improved hybrid tfc ro membranes with nitrogen additives

Country Status (7)

Country Link
US (1) US8567612B2 (https=)
EP (1) EP2448657B1 (https=)
JP (1) JP5745512B2 (https=)
AU (1) AU2010273709B2 (https=)
CA (1) CA2766352C (https=)
ES (1) ES2715823T3 (https=)
WO (1) WO2011008549A2 (https=)

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