EP1587608A1 - Procede de fabrication de membranes pour modules de filtration, notamment pour le traitement des eaux - Google Patents
Procede de fabrication de membranes pour modules de filtration, notamment pour le traitement des eauxInfo
- Publication number
- EP1587608A1 EP1587608A1 EP04705103A EP04705103A EP1587608A1 EP 1587608 A1 EP1587608 A1 EP 1587608A1 EP 04705103 A EP04705103 A EP 04705103A EP 04705103 A EP04705103 A EP 04705103A EP 1587608 A1 EP1587608 A1 EP 1587608A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membranes
- crosslinking
- membrane
- water
- hydrophilic
- 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.)
- Withdrawn
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000001914 filtration Methods 0.000 title description 17
- 238000004132 cross linking Methods 0.000 claims abstract description 21
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 13
- 239000002861 polymer material Substances 0.000 claims abstract description 10
- 230000003750 conditioning effect Effects 0.000 claims abstract description 9
- 229920001477 hydrophilic polymer Polymers 0.000 claims abstract description 9
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 7
- 229920001600 hydrophobic polymer Polymers 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 4
- 238000001471 micro-filtration Methods 0.000 claims abstract description 4
- 238000001728 nano-filtration Methods 0.000 claims abstract description 4
- 230000008021 deposition Effects 0.000 claims abstract description 3
- 238000010348 incorporation Methods 0.000 claims abstract description 3
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 28
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 28
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 28
- 230000008569 process Effects 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 18
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 15
- 229920002492 poly(sulfone) Polymers 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 6
- 235000011187 glycerol Nutrition 0.000 claims description 5
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 3
- 239000008237 rinsing water Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000002791 soaking Methods 0.000 abstract description 8
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 abstract description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- 239000004160 Ammonium persulphate Substances 0.000 abstract 1
- 239000004159 Potassium persulphate Substances 0.000 abstract 1
- 235000019395 ammonium persulphate Nutrition 0.000 abstract 1
- 235000019394 potassium persulphate Nutrition 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- PMZURENOXWZQFD-UHFFFAOYSA-L sodium sulphate Substances [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 43
- 230000035699 permeability Effects 0.000 description 23
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 5
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 4
- 239000012510 hollow fiber Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 210000003934 vacuole Anatomy 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 229920003081 Povidone K 30 Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- -1 hydroxyl ions Chemical class 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920002535 Polyethylene Glycol 1500 Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000721 bacterilogical effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- VUYXVWGKCKTUMF-UHFFFAOYSA-N tetratriacontaethylene glycol monomethyl ether Chemical compound COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO VUYXVWGKCKTUMF-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
-
- 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
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0006—Organic membrane manufacture by chemical reactions
-
- 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
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
-
- 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
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
- B01D2323/081—Heating
-
- 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
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic 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
- B01D71/06—Organic material
- B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
- B01D71/441—Polyvinylpyrrolidone
Definitions
- the present invention has set itself the objective of manufacturing a membrane made up of an “alloy” of two polymers: a simple chemistry, allowing, subject to the implementation of controls and processes appropriate to ensure the cohesion of these two polymer materials so that, for said membrane, an advantageous combination of the properties of the two constituent polymers results.
- the fiber contained 10% PVP, compared to the dry matter originally present in the collodion. This ensures that the process keeps PVP macromolecules fixed in the polysulfone matrix.
- FIGS. 3a to 5b are photographs which have been obtained using a scanning electron microscopy and they make it possible to illustrate the porous structure of the fibers of the membranes produced in accordance with the process which is the subject of the invention.
- the fibers may or may not contain vacuoles (see the detail of the fibers section in these photographs), they may also be in the form of a homogeneous structure. The important thing is that the vacuoles which may be present do not come into contact with the skin of the membrane which must remain supported by a homogeneous structure.
- Figure 3b illustrates a detail of the fiber section: we see an internal skin, a spongy porous structure containing vacuoles then an external skin.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0301013 | 2003-01-29 | ||
| FR0301013A FR2850297B1 (fr) | 2003-01-29 | 2003-01-29 | Procede de fabrication de membranes pour modules de filtration, notamment pour le traitement des eaux |
| PCT/FR2004/000174 WO2004078327A1 (fr) | 2003-01-29 | 2004-01-26 | Procede de fabrication de membranes pour modules de filtration, notamment pour le traitement des eaux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1587608A1 true EP1587608A1 (fr) | 2005-10-26 |
Family
ID=32669321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04705103A Withdrawn EP1587608A1 (fr) | 2003-01-29 | 2004-01-26 | Procede de fabrication de membranes pour modules de filtration, notamment pour le traitement des eaux |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20060228483A1 (ko) |
| EP (1) | EP1587608A1 (ko) |
| JP (1) | JP2006517469A (ko) |
| KR (1) | KR20060014364A (ko) |
| CN (1) | CN100342957C (ko) |
| AU (1) | AU2004217583A1 (ko) |
| CA (1) | CA2514468A1 (ko) |
| DE (1) | DE04705103T1 (ko) |
| ES (1) | ES2249200T1 (ko) |
| FR (1) | FR2850297B1 (ko) |
| WO (1) | WO2004078327A1 (ko) |
Families Citing this family (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR421501A0 (en) | 2001-04-04 | 2001-05-03 | U.S. Filter Wastewater Group, Inc. | Potting method |
| AUPR692401A0 (en) | 2001-08-09 | 2001-08-30 | U.S. Filter Wastewater Group, Inc. | Method of cleaning membrane modules |
| AUPS300602A0 (en) | 2002-06-18 | 2002-07-11 | U.S. Filter Wastewater Group, Inc. | Methods of minimising the effect of integrity loss in hollow fibre membrane modules |
| AU2003903507A0 (en) | 2003-07-08 | 2003-07-24 | U. S. Filter Wastewater Group, Inc. | Membrane post-treatment |
| NZ545206A (en) | 2003-08-29 | 2009-03-31 | Siemens Water Tech Corp | Backwash |
| US8808540B2 (en) | 2003-11-14 | 2014-08-19 | Evoqua Water Technologies Llc | Module cleaning method |
| WO2005092799A1 (en) | 2004-03-26 | 2005-10-06 | U.S. Filter Wastewater Group, Inc. | Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis |
| JP2008504122A (ja) | 2004-07-02 | 2008-02-14 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | 気体輸送膜 |
| JP2008505197A (ja) | 2004-07-05 | 2008-02-21 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | 親水性膜 |
| CN101043933B (zh) | 2004-09-07 | 2012-09-05 | 西门子工业公司 | 反洗废液的减少 |
| CA2579857A1 (en) | 2004-09-14 | 2006-03-23 | Siemens Water Technologies Corp. | Membrane filtration module and cleaning process |
| CA2579894A1 (en) | 2004-09-15 | 2006-03-23 | Siemens Water Technologies Corp. | Continuously variable aeration |
| AU2005312347B2 (en) * | 2004-12-03 | 2010-03-25 | Evoqua Water Technologies Llc | Membrane post treatment |
| ATE511915T1 (de) * | 2004-12-03 | 2011-06-15 | Siemens Industry Inc | Membrannachbehandlung |
| WO2006066350A1 (en) | 2004-12-24 | 2006-06-29 | Siemens Water Technologies Corp. | Simple gas scouring method and apparatus |
| CA2591408C (en) | 2004-12-24 | 2015-07-21 | Siemens Water Technologies Corp. | Cleaning in membrane filtration systems |
| JP2008539054A (ja) | 2005-04-29 | 2008-11-13 | シーメンス・ウォーター・テクノロジーズ・コーポレイション | 膜フィルターのための化学洗浄 |
| EP1893676A4 (en) * | 2005-06-20 | 2010-05-26 | Siemens Water Tech Corp | TREATMENT OF RETICULATING POLYMERIC MEMBRANES |
| AU2006261581B2 (en) * | 2005-06-20 | 2012-03-15 | Evoqua Water Technologies Llc | Cross linking treatment of polymer membranes |
| AU2006269753B2 (en) * | 2005-07-14 | 2011-09-01 | Evoqua Water Technologies Llc | Monopersulfate treatment of membranes |
| US7988891B2 (en) | 2005-07-14 | 2011-08-02 | Siemens Industry, Inc. | Monopersulfate treatment of membranes |
| SG164499A1 (en) | 2005-08-22 | 2010-09-29 | Siemens Water Tech Corp | An assembly for water filtration using a tube manifold to minimise backwash |
| US8293098B2 (en) | 2006-10-24 | 2012-10-23 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| US8318028B2 (en) | 2007-04-02 | 2012-11-27 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| KR20170092708A (ko) | 2007-05-29 | 2017-08-11 | 에보쿠아 워터 테크놀로지스 엘엘씨 | 수처리 시스템 |
| CN102112213B (zh) | 2008-07-24 | 2016-08-03 | 伊沃夸水处理技术有限责任公司 | 用于膜过滤模块的框架系统 |
| AU2010101488B4 (en) | 2009-06-11 | 2013-05-02 | Evoqua Water Technologies Llc | Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane |
| US9914097B2 (en) | 2010-04-30 | 2018-03-13 | Evoqua Water Technologies Llc | Fluid flow distribution device |
| CN103118766B (zh) | 2010-09-24 | 2016-04-13 | 伊沃夸水处理技术有限责任公司 | 膜过滤系统的流体控制歧管 |
| CA2850522C (en) | 2011-09-30 | 2021-03-16 | Evoqua Water Technologies Llc | Shut-off valve for isolation of hollow fiber membrane filtration module |
| SG11201401089PA (en) | 2011-09-30 | 2014-04-28 | Evoqua Water Technologies Llc | Improved manifold arrangement |
| EP2641653B1 (en) | 2012-03-23 | 2021-05-12 | Agfa-Gevaert Nv | Method for manufacturing solvent resistant polymeric membranes |
| KR102108593B1 (ko) | 2012-06-28 | 2020-05-29 | 에보쿠아 워터 테크놀로지스 엘엘씨 | 포팅 방법 |
| EP2895257A1 (en) | 2012-09-14 | 2015-07-22 | Evoqua Water Technologies LLC | A polymer blend for membranes |
| US9962865B2 (en) | 2012-09-26 | 2018-05-08 | Evoqua Water Technologies Llc | Membrane potting methods |
| EP2900356A1 (en) | 2012-09-27 | 2015-08-05 | Evoqua Water Technologies LLC | Gas scouring apparatus for immersed membranes |
| KR20160021203A (ko) | 2013-06-18 | 2016-02-24 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 친수성 플루오로플라스틱 기재 |
| US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
| EP3322511B1 (en) | 2015-07-14 | 2022-09-07 | Rohm & Haas Electronic Materials Singapore Pte. Ltd | Aeration device for filtration system |
| JP7128913B2 (ja) * | 2018-06-27 | 2022-08-31 | ビーエル テクノロジーズ、インコーポレイテッド | アルカリ安定性のナノ濾過複合膜及びそれらの製造方法 |
| CN110917901B (zh) * | 2019-11-25 | 2021-12-24 | 南京林业大学 | 一种原位快速降解污水有机污染物的纤维素滤膜及其制备方法 |
| WO2021191043A1 (en) * | 2020-03-25 | 2021-09-30 | Basf Se | Solution of polysulfons in n-n-butyl-2-pyrrolidone for the use of membranes |
| US20240002609A1 (en) * | 2020-11-30 | 2024-01-04 | Basf Se | Solution of sulfone polymers in n-tert.-butyl-2-pyrrolidone for the use of membranes |
| WO2024006133A1 (en) * | 2022-06-30 | 2024-01-04 | Arkema Inc. | Triethylphosphate/n-methylpyrrolidone solvent blends for making pvdf membranes |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2658045A (en) * | 1951-03-05 | 1953-11-03 | Gen Aniline & Film Corp | Polyvinyl pyrrolidone gels and process of producing the same |
| JPS6238205A (ja) * | 1985-08-12 | 1987-02-19 | Daicel Chem Ind Ltd | 分離用半透膜 |
| DE4112508A1 (de) * | 1991-04-17 | 1992-10-22 | Akzo Nv | Synthetische hydrophile membranen und verfahren zu deren herstellung |
| US5340480A (en) * | 1992-04-29 | 1994-08-23 | Kuraray Co., Ltd. | Polysulfone-based hollow fiber membrane and process for manufacturing the same |
| DE4217335C2 (de) * | 1992-05-26 | 1996-01-18 | Seitz Filter Werke | Hydrophile Membran und Verfahren zu ihrer Herstellung |
| DE4308807A1 (de) * | 1993-03-19 | 1994-09-22 | Gambro Dialysatoren | Verfahren zur Herstellung hydrophiler Membranen |
| US5543465A (en) * | 1993-03-19 | 1996-08-06 | Gambro Dialysatoren Gmbh & Co. | Process for the production of hydrophilic membranes |
| DE4339810C1 (de) * | 1993-11-23 | 1994-12-08 | Seitz Filter Werke | Verfahren zur partiellen Modifizierung von porösen, hydrophilen Filtermembranen, nachbehandelte Filtermembranen und mit ihnen bestückte Filtrationsmodule, insbesondere Filterkerzen |
-
2003
- 2003-01-29 FR FR0301013A patent/FR2850297B1/fr not_active Expired - Fee Related
-
2004
- 2004-01-26 EP EP04705103A patent/EP1587608A1/fr not_active Withdrawn
- 2004-01-26 US US10/543,693 patent/US20060228483A1/en not_active Abandoned
- 2004-01-26 CN CNB2004800031019A patent/CN100342957C/zh not_active Expired - Fee Related
- 2004-01-26 KR KR1020057014080A patent/KR20060014364A/ko not_active Application Discontinuation
- 2004-01-26 CA CA002514468A patent/CA2514468A1/fr not_active Abandoned
- 2004-01-26 AU AU2004217583A patent/AU2004217583A1/en not_active Abandoned
- 2004-01-26 DE DE04705103T patent/DE04705103T1/de active Pending
- 2004-01-26 JP JP2006505661A patent/JP2006517469A/ja active Pending
- 2004-01-26 WO PCT/FR2004/000174 patent/WO2004078327A1/fr active Application Filing
- 2004-01-26 ES ES04705103T patent/ES2249200T1/es active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004078327A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2249200T1 (es) | 2006-04-01 |
| FR2850297B1 (fr) | 2005-04-15 |
| KR20060014364A (ko) | 2006-02-15 |
| CA2514468A1 (fr) | 2004-09-16 |
| US20060228483A1 (en) | 2006-10-12 |
| WO2004078327A1 (fr) | 2004-09-16 |
| AU2004217583A1 (en) | 2004-09-16 |
| CN1744940A (zh) | 2006-03-08 |
| CN100342957C (zh) | 2007-10-17 |
| DE04705103T1 (de) | 2006-04-13 |
| FR2850297A1 (fr) | 2004-07-30 |
| JP2006517469A (ja) | 2006-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2004078327A1 (fr) | Procede de fabrication de membranes pour modules de filtration, notamment pour le traitement des eaux | |
| US7226541B2 (en) | Membrane polymer compositions | |
| EP0407900B1 (de) | Flach- oder Kapillarmembran auf der Basis eines homogenen Gemisches aus Polyvinylidenfluorid und eines zweiten, durch chemische Umsetzung hydrophilierbaren Polymeren | |
| EP0250337B1 (fr) | Membranes semi-perméables séchables et hydrophiles à base de polyfluorure de vinylidène | |
| US20080214687A1 (en) | Cross Linking Treatment of Polymer Membranes | |
| FR2691077A1 (fr) | Membrane d'ultrafiltration, procédé pour son utilisation, procédé pour tester son intégrité et procédé pour sa fabrication. | |
| EP3103546A1 (en) | Hollow fiber membrane, and method for producing hollow fiber membrane | |
| JP5609116B2 (ja) | 耐ファウリング性に優れる中空糸型限外ろ過膜 | |
| JP2009543675A (ja) | 向上した、膜のモノ過硫酸塩処理 | |
| JP2002535116A (ja) | エチレン−ビニルアルコール中空繊維膜 | |
| EP3023138A1 (en) | Hydrophilised vinylidene fluoride-based porous hollow fibre membrane, and manufacturing method therefor | |
| JP6577781B2 (ja) | 中空糸膜、及び中空糸膜の製造方法 | |
| US20130248441A1 (en) | Preparation method of hollow fiber membrane for water treatment using cellulose-based resin | |
| FR2715406A1 (fr) | Composition contenant du formiate de cellulose et pouvant former un gel élastique et thermoréversible. | |
| Kuo et al. | A new method for cellulose membrane fabrication and the determination of its characteristics | |
| JP3317975B2 (ja) | ポリアクリロニトリル系中空糸状濾過膜 | |
| AU2006261581B2 (en) | Cross linking treatment of polymer membranes | |
| JP4803697B2 (ja) | 多孔質膜の製造方法 | |
| JP2004033854A (ja) | 多孔質膜の製造方法 | |
| JPS59166208A (ja) | 気体分離膜の製造法 | |
| JP2855233B2 (ja) | 透水性にすぐれる芳香族ポリスルホン半透膜の製造方法 | |
| FR2692165A1 (fr) | Milieu poreux, ensemble de filtrage le comprenant, procédé et dispositif de filtration d'un acide minéral inorganique concentré. | |
| US20100258504A1 (en) | Fabrication of asymmetric polysulfone membrane for drinking water purification | |
| JPS6219207A (ja) | 疎水性多孔質膜の親水化方法 | |
| WO2020008152A1 (fr) | Fibres polymeres creuses en tant que membranes de filtration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20050815 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| GBC | Gb: translation of claims filed (gb section 78(7)/1977) | ||
| TCNL | Nl: translation of patent claims filed | ||
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MAUZAC, MONIQUE Inventor name: BOURDON, SYLVIE Inventor name: ABIDINE, NOUHAD |
|
| DET | De: translation of patent claims | ||
| REG | Reference to a national code |
Ref country code: HU Ref legal event code: AG9A |
|
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20080411 |