WO2002040140A1 - Perfectionnements apportes aux procedes de reparation par obturation des fibres creuses des membranes, notamment d'ultra-, nano-, et hyper-filtration - Google Patents
Perfectionnements apportes aux procedes de reparation par obturation des fibres creuses des membranes, notamment d'ultra-, nano-, et hyper-filtration Download PDFInfo
- Publication number
- WO2002040140A1 WO2002040140A1 PCT/FR2001/003476 FR0103476W WO0240140A1 WO 2002040140 A1 WO2002040140 A1 WO 2002040140A1 FR 0103476 W FR0103476 W FR 0103476W WO 0240140 A1 WO0240140 A1 WO 0240140A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adhesive
- fibers
- membranes
- fiber
- plug
- Prior art date
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
- B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
- B01D65/102—Detection of leaks in membranes
Definitions
- the present invention relates to a method for repairing ultra-, nano- and hyper-filtration membranes, in particular in the configuration of hollow fibers, these membranes being used in particular in the separation operations implemented in particular in installations. treatment of liquids, for example aqueous effluents. These repairs can be carried out on new fibers, or on used fibers, the objective being to restore the integrity of the fibers, that is to say their total impermeability to compounds and particles of size greater than their cut-off thresholds. .
- the invention also applies to the repair of microfiltration fibers, gas permeation, pervaporation etc.
- microfiltration and ultrafiltration membranes make it possible, during permeation, to carry out the clarification and disinfection of the water passing through them in order to eliminate bacteria, viruses and other parasites.
- the hollow fibers of such membranes have a geometry that is particularly suitable for ensuring good retention of dissolved and particulate species.
- the hollow fibers are self-supporting, the bonding made at the two ends of a hollow fiber module ensures, on the one hand a perfect seal of the fibers with respect to each other and on the other hand a sealing between the entire bundle of fibers molded in a resin (constituting the head plate of a module, formed during the potting operation) and the external envelope of the module (casing or pressure tube).
- a technique sometimes used consists, after potting, in strengthening the external protection of the hollow fibers, by brushing the fibers with a sufficiently fluid resin, this operation being sometimes called “varnishing". This varnishing then ensures perfect sealing of the porous section of the fibers, sections which could allow the migration of viruses, bacteria, microorganisms, macromolecules and other products and solutes of low mass found in water.
- the hollow fibers of the membrane separation modules ensure good disinfection of water, or even other liquids or fluids.
- the fibers break, particularly during bundling, potting or casing operations. These ruptures, more or less numerous, are linked to manufacturing defects or to natural or forced aging of the bran material. When such ruptures are noted, it becomes necessary to repair the broken fibers, failing which the module equipped with hollow fibers would no longer be able to fully ensure viral or bacteriological disinfection.
- the first method consists in pushing into the damaged fiber a cylindrical obturator, also called "nail” having a dimension appropriate to the internal diameter of the fiber.
- a cylindrical obturator also called "nail” having a dimension appropriate to the internal diameter of the fiber.
- Some module manufacturers offer conical nails for this purpose, in order to facilitate their installation.
- the quality of this repair can be further improved by brushing the fiber with a mono or two-component adhesive, in order to perfect and consolidate the sealing of the repair thus carried out.
- the disadvantage of this technique lies in the frequency of defective adhesions between the two materials (nail and fiber) resulting from the small contact surface and / or possible crosslinking / polymerization defects of said adhesive.
- the second method consists in injecting a two-component adhesive into the fiber identified as broken or "leaky". After injection of the adhesive using a needle, the latter is removed and the crosslinking of the adhesive is awaited.
- the major drawback of this technique lies in the fact that, during the injection of small amounts of adhesive, cross-linking the product is time consuming. Therefore, before restarting the repaired module, there is a waiting period which can prove to be penalizing since it can reach 24 hours before complete crosslinking. It should also be mentioned that the crosslinking kinetics are linked to the ambient temperature prevailing on the site. Therefore, in cold weather, the crosslinking of the adhesive requires a longer duration and is sometimes even impossible. Thus, it is common to have to wait until the day after the repair before being able to reassemble the module, comprising the repaired defective fiber, on the filtration assembly.
- the present invention has set itself the objective of providing a simple method, easy to implement and with immediate results, that is to say a method according to which in particular the duration of repair no longer constitutes a limit to the operation of the membranes and thanks to which the duration and the quality of the repair no longer depend on the ambient temperature, nor on the quality or history of the fibers to be repaired . Furthermore, thanks to the invention, the separation and permeability performance of the membranes are immediately and fully restored.
- this invention relates to a method for repairing ultra-, nano- and hyper-filtration membranes, in particular in fiber configuration.
- tubular hollow which consists, after detection and localization of a leak in a damaged fiber, in injecting a crosslinkable adhesive therein, this process being characterized in that a plug of a precisely dosed amount of is injected into the damaged fiber a mono-component synthetic adhesive and the curing of said adhesive plug is carried out by crosslinking / polymerization under ultraviolet radiation with a focusing of this radiation on the section of the fiber to be repaired, under a high flux density in the form of a beam parallel, via a waveguide.
- an adhesive which is a synthetic resin and the height of the adhesive plug injected is of the order of 6 +/- 1 mm.
- an adhesive stopper with the height mentioned above close to 5 to 7 mm, by injection either manually or using conventional apparatuses injection of adhesive fitted with precise dosers and pistons driven by a controlled pressure of compressed air; - that the adhesive thus injected did not flow after its installation;
- the injected adhesive could be crosslinked over its entire height; that the crosslinking / polyerization time of the adhesive was approximately 30 seconds under intense ultraviolet radiation whose parallel beam was focused on the section of the fiber to be repaired using a waveguide.
- adhesives crosslinkable under ultraviolet radiation and having a fairly wide viscosity range can be used. It is then possible to repair hollow fibers having internal diameters of, for example, between 0.3 and 2.0 mm.
- adhesives which can be used according to the invention, mention may in particular be made of glues sold commercially by the companies PERMABOND (adhesive UN 9110) and HERAEUS (adhesive FLOWLI ⁇ E).
- glues sold commercially by the companies PERMABOND (adhesive UN 9110) and HERAEUS (adhesive FLOWLI ⁇ E).
- any system can be used to focus the UV radiation on the section of the fiber to be repaired, for example the device “Translux CL. »Marketed by the firm HERAEUS.
- the new fibers are immersed in a solution containing hydrochloric acid at pH 1 for two consecutive days;
- the new fibers are immersed in an aqueous sodium hydroxide solution at pH 10, for 24 hours;
- the new fibers are immersed in a solution containing citric acid at a pH close to 3, for 24 hours;
- the new fibers are immersed in a chlorine solution containing 500 ppm of active chlorine, for 24 hours.
- the present invention is not limited to the examples of implementation described above, but that it encompasses all variants thereof, in particular, as already mentioned, the invention is not limited to the repair of only ultra-, nano and hyper-filtration fibers, but it can also be applied to the repair in particular of microfiltration fibers of gas permeation, of pervaporation etc ...
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002223043A AU2002223043A1 (en) | 2000-11-20 | 2001-11-08 | Improvements to methods for repairing by sealing hollow fibres of membranes, in particular, ultrafiltration, nanofiltration, and hyperfiltration membranes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR00/14969 | 2000-11-20 | ||
FR0014969A FR2816851B1 (fr) | 2000-11-20 | 2000-11-20 | Perfectionnements apportes au procedes de reparation par obturation des fibres creuses des membranes, notamment d'ultra-, nano- et hyper-filtration |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002040140A1 true WO2002040140A1 (fr) | 2002-05-23 |
Family
ID=8856675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/003476 WO2002040140A1 (fr) | 2000-11-20 | 2001-11-08 | Perfectionnements apportes aux procedes de reparation par obturation des fibres creuses des membranes, notamment d'ultra-, nano-, et hyper-filtration |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002223043A1 (fr) |
FR (1) | FR2816851B1 (fr) |
WO (1) | WO2002040140A1 (fr) |
Cited By (47)
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WO2003106004A1 (fr) * | 2002-06-18 | 2003-12-24 | U.S. Filter Wastewater Group, Inc. | Procedes pour minimiser l'effet de la perte d'integrite dans des modules a membranes a fibres creuses |
US7335301B2 (en) | 2002-11-22 | 2008-02-26 | Koch Membrane Systems, Inc. | Fold protection for spiral filtration modules utilizing UV cured adhesive and method of providing same |
US7718057B2 (en) | 2005-10-05 | 2010-05-18 | Siemens Water Technologies Corp. | Wastewater treatment system |
US7718065B2 (en) | 2004-04-22 | 2010-05-18 | Siemens Water Technologies Corp. | Filtration method and apparatus |
US7862719B2 (en) | 2004-08-20 | 2011-01-04 | Siemens Water Technologies Corp. | Square membrane manifold system |
US7931463B2 (en) | 2001-04-04 | 2011-04-26 | Siemens Water Technologies Corp. | Apparatus for potting membranes |
US7938966B2 (en) | 2002-10-10 | 2011-05-10 | Siemens Water Technologies Corp. | Backwash method |
US7951295B2 (en) | 2005-12-07 | 2011-05-31 | Dow Global Technologies Llc | Insertion-point seal for spiral wound module |
US8048306B2 (en) | 1996-12-20 | 2011-11-01 | Siemens Industry, Inc. | Scouring method |
US8268176B2 (en) | 2003-08-29 | 2012-09-18 | Siemens Industry, Inc. | Backwash |
US8287743B2 (en) | 2007-05-29 | 2012-10-16 | Siemens Industry, Inc. | Membrane cleaning with pulsed airlift pump |
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 |
US8372282B2 (en) | 2002-12-05 | 2013-02-12 | Siemens Industry, Inc. | Mixing chamber |
US8377305B2 (en) | 2004-09-15 | 2013-02-19 | Siemens Industry, Inc. | Continuously variable aeration |
US8382981B2 (en) | 2008-07-24 | 2013-02-26 | Siemens Industry, Inc. | Frame system for membrane filtration modules |
US8496828B2 (en) | 2004-12-24 | 2013-07-30 | Siemens Industry, Inc. | Cleaning in membrane filtration systems |
US8506806B2 (en) | 2004-09-14 | 2013-08-13 | Siemens Industry, Inc. | Methods and apparatus for removing solids from a membrane module |
US8512568B2 (en) | 2001-08-09 | 2013-08-20 | Siemens Industry, Inc. | Method of cleaning membrane modules |
EP2722099A1 (fr) * | 2011-06-16 | 2014-04-23 | Mitsubishi Rayon Co., Ltd. | Procédé de réparation d'un module d'une membrane à fibre creuse et module de membrane à fibre creuse |
US8758622B2 (en) | 2004-12-24 | 2014-06-24 | Evoqua Water Technologies Llc | Simple gas scouring method and apparatus |
US8758621B2 (en) | 2004-03-26 | 2014-06-24 | Evoqua Water Technologies Llc | Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis |
US8790515B2 (en) | 2004-09-07 | 2014-07-29 | Evoqua Water Technologies Llc | Reduction of backwash liquid waste |
US8808540B2 (en) | 2003-11-14 | 2014-08-19 | Evoqua Water Technologies Llc | Module cleaning method |
US8858796B2 (en) | 2005-08-22 | 2014-10-14 | Evoqua Water Technologies Llc | Assembly for water filtration using a tube manifold to minimise backwash |
US8956464B2 (en) | 2009-06-11 | 2015-02-17 | Evoqua Water Technologies Llc | Method of cleaning membranes |
US9022224B2 (en) | 2010-09-24 | 2015-05-05 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
CN105727752A (zh) * | 2016-05-11 | 2016-07-06 | 贵州省材料产业技术研究院 | 一种高强度抗污染抗菌中空纤维纳滤膜的制备方法及产品 |
US9498753B2 (en) | 2012-03-15 | 2016-11-22 | Koch Membrane Systems, Inc. | Method for sealing hollow fiber membranes |
US9533261B2 (en) | 2012-06-28 | 2017-01-03 | Evoqua Water Technologies Llc | Potting method |
US9604166B2 (en) | 2011-09-30 | 2017-03-28 | Evoqua Water Technologies Llc | Manifold arrangement |
US9675938B2 (en) | 2005-04-29 | 2017-06-13 | Evoqua Water Technologies Llc | Chemical clean for membrane filter |
US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
US9764289B2 (en) | 2012-09-26 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane securement device |
US9815027B2 (en) | 2012-09-27 | 2017-11-14 | Evoqua Water Technologies Llc | Gas scouring apparatus for immersed membranes |
US9815031B2 (en) | 2016-03-29 | 2017-11-14 | Sabic Global Technologies B.V. | Porous membranes and associated separation modules and methods |
US9914097B2 (en) | 2010-04-30 | 2018-03-13 | Evoqua Water Technologies Llc | Fluid flow distribution device |
US9925499B2 (en) | 2011-09-30 | 2018-03-27 | Evoqua Water Technologies Llc | Isolation valve with seal for end cap of a filtration system |
US9962865B2 (en) | 2012-09-26 | 2018-05-08 | Evoqua Water Technologies Llc | Membrane potting methods |
US10080996B2 (en) | 2014-05-01 | 2018-09-25 | Sabic Global Technologies B.V. | Skinned, asymmetric poly(phenylene ether) co-polymer membrane; gas separation unit, and preparation method thereof |
US10207230B2 (en) | 2014-05-01 | 2019-02-19 | Sabic Global Technologies B.V. | Composite membrane with support comprising poly(phenylene ether) and amphilphilic polymer; method of making; and separation module thereof |
US10252220B2 (en) | 2014-05-01 | 2019-04-09 | Sabic Global Technologies B.V. | Porous asymmetric polyphenylene ether membranes and associated separation modules and methods |
US10307717B2 (en) | 2016-03-29 | 2019-06-04 | Sabic Global Technologies B.V. | Porous membranes and associated separation modules and methods |
US10322375B2 (en) | 2015-07-14 | 2019-06-18 | Evoqua Water Technologies Llc | Aeration device for filtration system |
US10358517B2 (en) | 2014-05-01 | 2019-07-23 | Sabic Global Technologies B.V. | Amphiphilic block copolymer; composition, membrane, and separation module thereof; and methods of making same |
US10421046B2 (en) | 2015-05-01 | 2019-09-24 | Sabic Global Technologies B.V. | Method for making porous asymmetric membranes and associated membranes and separation modules |
US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
Families Citing this family (1)
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CN110559865B (zh) * | 2019-08-14 | 2022-02-25 | 浙江理工大学 | 一种超滤膜污染或膜损伤的修复方法 |
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US8048306B2 (en) | 1996-12-20 | 2011-11-01 | Siemens Industry, Inc. | Scouring method |
US8518256B2 (en) | 2001-04-04 | 2013-08-27 | Siemens Industry, Inc. | Membrane module |
US7931463B2 (en) | 2001-04-04 | 2011-04-26 | Siemens Water Technologies Corp. | Apparatus for potting membranes |
US8512568B2 (en) | 2001-08-09 | 2013-08-20 | Siemens Industry, Inc. | Method of cleaning membrane modules |
US7344645B2 (en) * | 2002-06-18 | 2008-03-18 | Siemens Water Technologies Corp. | Methods of minimising the effect of integrity loss in hollow fibre membrane modules |
CN100503018C (zh) * | 2002-06-18 | 2009-06-24 | 西门子水技术公司 | 使空心纤维隔膜模块的完整性损失的影响减至最小的方法 |
AU2003232518B2 (en) * | 2002-06-18 | 2008-09-11 | Evoqua Water Technologies Llc | Methods of minimising the effect of integrity loss in hollow fibre membrane modules |
WO2003106004A1 (fr) * | 2002-06-18 | 2003-12-24 | U.S. Filter Wastewater Group, Inc. | Procedes pour minimiser l'effet de la perte d'integrite dans des modules a membranes a fibres creuses |
KR100977323B1 (ko) * | 2002-06-18 | 2010-08-20 | 지멘스 워터 테크놀로지스 코포레이션 | 중공 섬유 멤브레인 모듈에서 무결성 손실 효과를 최소화하는 방법 |
US8182687B2 (en) | 2002-06-18 | 2012-05-22 | Siemens Industry, Inc. | Methods of minimising the effect of integrity loss in hollow fibre membrane modules |
US7160463B2 (en) | 2002-06-18 | 2007-01-09 | U.S. Filter Wastewater Group, Inc. | Methods of minimizing the effect of integrity loss in hollow fibre membrane modules |
US7938966B2 (en) | 2002-10-10 | 2011-05-10 | Siemens Water Technologies Corp. | Backwash method |
US7335301B2 (en) | 2002-11-22 | 2008-02-26 | Koch Membrane Systems, Inc. | Fold protection for spiral filtration modules utilizing UV cured adhesive and method of providing same |
US8372282B2 (en) | 2002-12-05 | 2013-02-12 | Siemens Industry, Inc. | Mixing chamber |
US8268176B2 (en) | 2003-08-29 | 2012-09-18 | Siemens Industry, Inc. | Backwash |
US8808540B2 (en) | 2003-11-14 | 2014-08-19 | Evoqua Water Technologies Llc | Module cleaning method |
US8758621B2 (en) | 2004-03-26 | 2014-06-24 | Evoqua Water Technologies Llc | Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis |
US7718065B2 (en) | 2004-04-22 | 2010-05-18 | Siemens Water Technologies Corp. | Filtration method and apparatus |
US7862719B2 (en) | 2004-08-20 | 2011-01-04 | Siemens Water Technologies Corp. | Square membrane manifold system |
US8790515B2 (en) | 2004-09-07 | 2014-07-29 | Evoqua Water Technologies Llc | Reduction of backwash liquid waste |
US8506806B2 (en) | 2004-09-14 | 2013-08-13 | Siemens Industry, Inc. | Methods and apparatus for removing solids from a membrane module |
US8377305B2 (en) | 2004-09-15 | 2013-02-19 | Siemens Industry, Inc. | Continuously variable aeration |
US8758622B2 (en) | 2004-12-24 | 2014-06-24 | Evoqua Water Technologies Llc | Simple gas scouring method and apparatus |
US8496828B2 (en) | 2004-12-24 | 2013-07-30 | Siemens Industry, Inc. | Cleaning in membrane filtration systems |
US9675938B2 (en) | 2005-04-29 | 2017-06-13 | Evoqua Water Technologies Llc | Chemical clean for membrane filter |
US8858796B2 (en) | 2005-08-22 | 2014-10-14 | Evoqua Water Technologies Llc | Assembly for water filtration using a tube manifold to minimise backwash |
US8894858B1 (en) | 2005-08-22 | 2014-11-25 | Evoqua Water Technologies Llc | Method and assembly for water filtration using a tube manifold to minimize backwash |
US7722769B2 (en) | 2005-10-05 | 2010-05-25 | Siemens Water Technologies Corp. | Method for treating wastewater |
US7718057B2 (en) | 2005-10-05 | 2010-05-18 | Siemens Water Technologies Corp. | Wastewater treatment system |
US7951295B2 (en) | 2005-12-07 | 2011-05-31 | Dow Global Technologies Llc | Insertion-point seal for spiral wound module |
US8142657B2 (en) | 2005-12-07 | 2012-03-27 | Dow Global Technologies Llc | Insertion-point seal for spiral wound module |
US8293098B2 (en) | 2006-10-24 | 2012-10-23 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
US8623202B2 (en) | 2007-04-02 | 2014-01-07 | Siemens Water Technologies Llc | Infiltration/inflow control for membrane bioreactor |
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US8382981B2 (en) | 2008-07-24 | 2013-02-26 | Siemens Industry, Inc. | Frame system for membrane filtration modules |
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US8956464B2 (en) | 2009-06-11 | 2015-02-17 | Evoqua Water Technologies Llc | Method of cleaning membranes |
US9914097B2 (en) | 2010-04-30 | 2018-03-13 | Evoqua Water Technologies Llc | Fluid flow distribution device |
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US9022224B2 (en) | 2010-09-24 | 2015-05-05 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
US9630147B2 (en) | 2010-09-24 | 2017-04-25 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
EP2722099A4 (fr) * | 2011-06-16 | 2014-11-05 | Mitsubishi Rayon Co | Procédé de réparation d'un module d'une membrane à fibre creuse et module de membrane à fibre creuse |
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US9498753B2 (en) | 2012-03-15 | 2016-11-22 | Koch Membrane Systems, Inc. | Method for sealing hollow fiber membranes |
US9968888B2 (en) | 2012-03-15 | 2018-05-15 | Koch Membrane Systems, Inc. | Method for sealing hollow fiber membranes |
US9533261B2 (en) | 2012-06-28 | 2017-01-03 | Evoqua Water Technologies Llc | Potting method |
US9764289B2 (en) | 2012-09-26 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane securement device |
US9962865B2 (en) | 2012-09-26 | 2018-05-08 | Evoqua Water Technologies Llc | Membrane potting methods |
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CN105727752B (zh) * | 2016-05-11 | 2018-08-14 | 贵州省材料产业技术研究院 | 一种高强度抗污染抗菌中空纤维纳滤膜的制备方法及产品 |
CN105727752A (zh) * | 2016-05-11 | 2016-07-06 | 贵州省材料产业技术研究院 | 一种高强度抗污染抗菌中空纤维纳滤膜的制备方法及产品 |
Also Published As
Publication number | Publication date |
---|---|
FR2816851B1 (fr) | 2003-09-26 |
AU2002223043A1 (en) | 2002-05-27 |
FR2816851A1 (fr) | 2002-05-24 |
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