WO2003024575A1 - High solids module - Google Patents
High solids module Download PDFInfo
- Publication number
- WO2003024575A1 WO2003024575A1 PCT/AU2002/001272 AU0201272W WO03024575A1 WO 2003024575 A1 WO2003024575 A1 WO 2003024575A1 AU 0201272 W AU0201272 W AU 0201272W WO 03024575 A1 WO03024575 A1 WO 03024575A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- membranes
- membrane
- module
- feed
- sweep
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/024—Hollow fibre modules with a single potted end
-
- 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
- B01D2321/04—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
- B01D2321/18—Use of gases
- B01D2321/185—Aeration
Definitions
- the present invention relates to membrane filtration systems used with high solids feed and, more particularly, to a method and apparatus for improving the filtration efficiency of such systems by providing an improved cleaning system for the membranes.
- a commonly used method to physically clean membranes is a backwash (also called “backflush” or “backpulse”) with the permeate/filtrate or a gas.
- the backwash method is typically used to eject solids blocking the membrane pores and partly dislodge the cake that may have formed on the membrane surface.
- the fouling occurs more quickly and more severely, in particular, where membranes are densely packed in a module.
- Backwash with pressurized gas has proved a very efficient cleaning method and is now widely used in the field of microfiltration processes.
- the limitation to this method is the membrane pore size.
- Backwash of membranes with permeate has no limitations to the pore size, but the backwash efficiency is generally lower than gas backwash and the transmembrane pressure (TMP) recovery not enough to offset the fouling rate.
- Further means are employed to enhance the backwash efficiency, such as dosing chemicals to the backwash permeate, or in combination with gas scrubbing.
- Maruyama et al in Japanese Patent No. JP2031200 discloses a hollow fibre membrane backwashing method.
- the method involves the following sequence: stop filtration, air-scour membrane, fill the membrane vessel, backwash with permeate under pressurized air and drain the waste. This procedure is repeated to achieve a higher efficiency.
- Sunaoka et al in a United States Patent No. 5,209,852 describes a process for scrubbing hollow fibre membranes in modules. This process is composed of a two-stage air scrubbing and draining to clean the membranes.
- membrane modules are typically manufactured with a high packing density of membranes, usually in the form of fibres. This increases the amount of membrane area for filtration within a module.
- the higher the packing density the more difficult it is to effectively flush solids captured during the filtration process from the membrane bundle. Therefore, improvement in the efficiency of solids removal during backwash allows either higher solids levels to be processed, or higher membrane packing densities to be used, reducing the cost of treatment.
- the present invention seeks to overcome or at least ameliorate one or more of the disadvantages of the prior art or at least provide a useful alternative.
- the present invention provides a method of cleaning a membrane filtration module, said module including one or more membranes located in a feed-containing vessel and extending longitudinally between vertically spaced upper and lower headers into which the ends of the membranes are potted, the membranes having a permeable wall which is subjected to a filtration operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall, at least one of said upper and/or lower headers having one or more openings therein, the method including: a) suspending the filtration operation; b) performing a cleaning process on the membrane wall to dislodge contaminant matter therefrom into liquid surrounding the membrane; c) performing a sweep of the feed-containing vessel substantially parallel to the longitudinally extending membranes to remove the liquid containing the dislodged contaminant matter,
- the openings are provided in the lower header and filtrate is withdrawn from the upper header.
- the openings may also be used to introduce gas into the module to produce bubbles for scouring the surface of the membranes during said cleaning process.
- the sweep may be performed concurrently with the cleaning process.
- the sweep is a high velocity sweep.
- the present invention provides for holes or openings in one of the module pots so that solids swept along the membranes during the backwash process continue to flow parallel to the membranes as they exit the module.
- the requirement for the solids to cross over the fibre bundle to exit at a side port is substantially reduced or eliminated.
- the present provides a method of cleaning a membrane filtration module, said module including one or more membranes located in a feed-containing vessel and extending vertically from an upper header into which proximal ends of the membranes are potted, the membranes having a permeable wall which is subjected to a filtration operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall, the method including: a) suspending the filtration operation; b) performing a cleaning process on the membrane wall to dislodge contaminant matter therefrom into liquid surrounding the membrane; c) performing a sweep of the feed-containing vessel substantially parallel to the vertically extending membranes to remove the liquid containing the dislodged contaminant matter, at least in part, through an opening in the module beneath said membranes; and d) recommencing the filtration operation.
- Figure 1 shows a schematic sectional view of a membrane module according to one embodiment
- Figure 2 shows a schematic sectional view of a membrane module according to further embodiment. DESCRIPTION OF PREFERRED EMBODIMENTS
- the filtration module 5 is mounted within a housing vessel 6 which contains the feed to be filtered.
- the filtration module 5 contains a bundle or bundles of hollow fibre membranes 7 extending between upper and lower headers 8 and 9, respectively.
- the lower header 9 is provided with a number of openings 10 communicating with the interior of the fibre bundle and a collection chamber 11 having an inlet/outlet port 12.
- Feed is supplied through ports 13 and 14 under the control of valves AV1 and AV2.
- Permeate/filtrate is withdrawn through chamber 15 and port 16 under control of valve AV3.
- a backwash may also be applied through port 16 under the control of valve AV4.
- FIG. 1 shows a similar arrangement to Figure 1 , however, in this embodiment the hollow fibre membranes 7 are suspended vertically from the upper header 8 and are not potted at their lower distal ends 17. The distal ends 17 of each fibre membrane 7 are closed and filtrate withdrawn through the upper header 8. Backwash in this embodiment is flushed or swept through port 12.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02764383A EP1441841B1 (en) | 2001-09-18 | 2002-09-17 | Method for cleaning a high solids module |
AU2002328672A AU2002328672B2 (en) | 2001-09-18 | 2002-09-17 | High solids module |
CA2460207A CA2460207C (en) | 2001-09-18 | 2002-09-17 | High solids module |
JP2003528664A JP2005502467A (en) | 2001-09-18 | 2002-09-17 | High solid module |
DE60221555T DE60221555T2 (en) | 2001-09-18 | 2002-09-17 | PROCESS FOR CLEANING A MODULE HAVING A HIGH SOLIDS CONTENT |
US10/802,691 US7018533B2 (en) | 2001-09-18 | 2004-03-16 | High solids module |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPR7742 | 2001-09-18 | ||
AUPR7742A AUPR774201A0 (en) | 2001-09-18 | 2001-09-18 | High solids module |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/802,691 Continuation US7018533B2 (en) | 2001-09-18 | 2004-03-16 | High solids module |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003024575A1 true WO2003024575A1 (en) | 2003-03-27 |
Family
ID=3831582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2002/001272 WO2003024575A1 (en) | 2001-09-18 | 2002-09-17 | High solids module |
Country Status (10)
Country | Link |
---|---|
US (1) | US7018533B2 (en) |
EP (1) | EP1441841B1 (en) |
JP (1) | JP2005502467A (en) |
CN (1) | CN1265867C (en) |
AT (1) | ATE368504T1 (en) |
AU (1) | AUPR774201A0 (en) |
CA (1) | CA2460207C (en) |
DE (1) | DE60221555T2 (en) |
MY (1) | MY135444A (en) |
WO (1) | WO2003024575A1 (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003013706A1 (en) | 2001-08-09 | 2003-02-20 | U.S. Filter Wastewater Group, Inc. | Method of cleaning membrane modules |
WO2005046849A1 (en) | 2003-11-14 | 2005-05-26 | U.S. Filter Wastewater Group, Inc. | Improved module cleaning method |
WO2006029456A1 (en) | 2004-09-14 | 2006-03-23 | Siemens Water Technologies Corp. | Methods and apparatus for removing solids from a membrane module |
EP1642636A1 (en) * | 2004-09-30 | 2006-04-05 | HydroSep AG | Fluid treatment system and method |
WO2007022576A1 (en) * | 2005-08-22 | 2007-03-01 | Siemens Water Technologies Corp. | An assembly for water filtration using a tube manifold to minimise backwash |
AU2006284524B2 (en) * | 2005-08-22 | 2011-04-21 | Evoqua Water Technologies Llc | An assembly for water filtration using a tube manifold to minimise backwash |
US8182687B2 (en) | 2002-06-18 | 2012-05-22 | Siemens Industry, Inc. | Methods of minimising the effect of integrity loss in hollow fibre membrane modules |
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 |
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 |
US8518256B2 (en) | 2001-04-04 | 2013-08-27 | Siemens Industry, Inc. | Membrane module |
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 |
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 |
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 |
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 |
US10322375B2 (en) | 2015-07-14 | 2019-06-18 | Evoqua Water Technologies Llc | Aeration device for filtration system |
US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
WO2020004381A1 (en) * | 2018-06-26 | 2020-01-02 | 独立行政法人石油天然ガス・金属鉱物資源機構 | Separation membrane module |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2639642C (en) | 1996-12-20 | 2013-01-15 | Siemens Water Technologies Corp. | Scouring method |
JP4282598B2 (en) | 2002-10-10 | 2009-06-24 | 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 | Filtration device and method for cleaning the filtration device |
AU2002953111A0 (en) | 2002-12-05 | 2002-12-19 | U. S. Filter Wastewater Group, Inc. | Mixing chamber |
US20050067344A1 (en) * | 2003-09-30 | 2005-03-31 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Zeolite membrane support and zeolite composite membrane |
US20050115899A1 (en) * | 2003-10-21 | 2005-06-02 | Minggang Liu | Membrane bioreactor having single header membrane module |
JP2007535398A (en) | 2004-04-22 | 2007-12-06 | シーメンス ウォーター テクノロジース コーポレイション | Filtration device including membrane bioreactor and treatment tank for digesting organic substances, and waste liquid treatment method |
WO2006017911A1 (en) | 2004-08-20 | 2006-02-23 | Siemens Water Technologies Corp. | Square mbr manifolding system |
US7591950B2 (en) * | 2004-11-02 | 2009-09-22 | Siemens Water Technologies Corp. | Submerged cross-flow filtration |
NZ556400A (en) * | 2005-01-14 | 2011-05-27 | Siemens Water Tech Corp | Cleaning of membrane filtration system |
CN100518907C (en) * | 2005-03-09 | 2009-07-29 | 浙江欧美环境工程有限公司 | Floating suspenion hollow fiber porous film filter component element |
US20060266705A1 (en) * | 2005-04-22 | 2006-11-30 | Arnold Janson | Refreshing chemicals during membrane cleaning |
US20070138090A1 (en) | 2005-10-05 | 2007-06-21 | Jordan Edward J | Method and apparatus for treating wastewater |
WO2008141080A1 (en) * | 2007-05-11 | 2008-11-20 | Zenon Technology Partnership | Membrane module with multiple bottom headers and filtration process |
JP2010531218A (en) * | 2007-06-28 | 2010-09-24 | シーメンス ウォーター テクノロジース コーポレイション | Cleaning methods for simple filtration systems |
KR20110044312A (en) | 2008-08-20 | 2011-04-28 | 지멘스 워터 테크놀로지스 코포레이션 | Improved membrane system backwash energy efficiency |
US8146446B1 (en) * | 2009-03-10 | 2012-04-03 | The United States Of America, As Represented By The Secretary Of The Army | Concentrator device and method of concentrating a liquid sample |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996007470A1 (en) * | 1994-09-09 | 1996-03-14 | Memtec America Corporation | Cleaning of hollow fibre membranes |
WO1998022204A1 (en) * | 1996-11-21 | 1998-05-28 | Memtec America Corporation | Microporous membrane filtration and backwashing process |
WO2001036075A1 (en) * | 1999-11-18 | 2001-05-25 | Zenon Environmental Inc. | Immersed membrane filtration system and overflow process |
Family Cites Families (122)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL269380A (en) | 1960-09-19 | |||
US3693406A (en) | 1970-01-26 | 1972-09-26 | Air Intake Renu | Method for inspecting filters |
US3708071A (en) | 1970-08-05 | 1973-01-02 | Abcor Inc | Hollow fiber membrane device and method of fabricating same |
US3992301A (en) | 1973-11-19 | 1976-11-16 | Raypak, Inc. | Automatic flushing system for membrane separation machines such as reverse osmosis machines |
US3968192A (en) | 1974-04-19 | 1976-07-06 | The Dow Chemical Company | Method of repairing leaky hollow fiber permeability separatory devices |
US4192750A (en) | 1976-08-09 | 1980-03-11 | Massey-Ferguson Inc. | Stackable filter head unit |
US4193780A (en) | 1978-03-20 | 1980-03-18 | Industrial Air, Inc. | Air filter construction |
US4188817A (en) | 1978-10-04 | 1980-02-19 | Standard Oil Company (Indiana) | Method for detecting membrane leakage |
US4218324A (en) | 1979-05-03 | 1980-08-19 | Textron, Inc. | Filter element having removable filter media member |
US4248648A (en) | 1979-07-18 | 1981-02-03 | Baxter Travenol Laboratories, Inc. | Method of repairing leaks in a hollow capillary fiber diffusion device |
JPS5770144A (en) | 1980-10-17 | 1982-04-30 | Asahi Glass Co Ltd | Organic solution of fluorinated copolymer containing carboxyl group |
US4384474A (en) | 1980-10-30 | 1983-05-24 | Amf Incorporated | Method and apparatus for testing and using membrane filters in an on site of use housing |
JPS57102202A (en) | 1980-12-18 | 1982-06-25 | Toyobo Co Ltd | Fluid separator |
US4812235A (en) | 1982-03-29 | 1989-03-14 | Hr Textron, Inc. | Filter element assembly replaceable mesh pack |
US4540490A (en) | 1982-04-23 | 1985-09-10 | Jgc Corporation | Apparatus for filtration of a suspension |
WO1983003984A1 (en) | 1982-05-13 | 1983-11-24 | Gerhard Kunz | Method for the treatment of a liquid phase, particularly method for desalting aqueous solutions, as well as device for its implementation |
JPS5952507A (en) | 1982-06-03 | 1984-03-27 | デ−・エル・エム・ドクトル・ミユラ−・アクチエンゲゼルシヤフト | Apparatus for continuously concentrating suspension |
GB2132366B (en) | 1982-12-27 | 1987-04-08 | Brunswick Corp | Method and device for testing the permeability of membrane filters |
CA1221645A (en) | 1983-02-28 | 1987-05-12 | Yoshihiro Okano | Filtration apparatus using hollow fiber-membrane |
DE3317396A1 (en) | 1983-05-13 | 1984-11-15 | Henkel KGaA, 4000 Düsseldorf | USE OF COLOYERS FROM ESTERS AND AMIDES OF ACRYLIC AND / OR METHACRYLIC ACIDS AS STOCK POINTS LOW FOR PARAFFIN SOLUTIONS |
GB8313635D0 (en) | 1983-05-17 | 1983-06-22 | Whatman Reeve Angel Plc | Porosimeter |
US4636296A (en) | 1983-08-18 | 1987-01-13 | Gerhard Kunz | Process and apparatus for treatment of fluids, particularly desalinization of aqueous solutions |
US4756875A (en) | 1983-09-29 | 1988-07-12 | Kabushiki Kaisha Toshiba | Apparatus for filtering water containing radioactive substances in nuclear power plants |
WO1985001449A1 (en) | 1983-09-30 | 1985-04-11 | Memtec Limited | Cleaning of filters |
US4609465A (en) | 1984-05-21 | 1986-09-02 | Pall Corporation | Filter cartridge with a connector seal |
EP0170895B1 (en) | 1984-07-09 | 1989-03-22 | Millipore Corporation | Improved electrodeionization apparatus and method |
JPS6125903U (en) | 1984-07-24 | 1986-02-15 | 株式会社 伊藤鉄工所 | filtration equipment |
DE3428307A1 (en) | 1984-08-01 | 1986-02-13 | Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg | DISPLAY DEVICE FOR THE POLLUTION LEVEL OF SUCTION AIR FILTERS |
US5024762A (en) | 1985-03-05 | 1991-06-18 | Memtec Limited | Concentration of solids in a suspension |
US4931186A (en) | 1985-03-05 | 1990-06-05 | Memtec Limited | Concentration of solids in a suspension |
US4642182A (en) | 1985-03-07 | 1987-02-10 | Mordeki Drori | Multiple-disc type filter with extensible support |
DE3671175D1 (en) | 1985-03-28 | 1990-06-21 | Memtec Ltd | COOLING OF HOLLOW FIBER CROSS-CURRENT SEPARATORS. |
ATE53510T1 (en) | 1985-04-10 | 1990-06-15 | Memtec Ltd | VARIABLE VOLUME FILTER OR CONCENTRATOR. |
CA1247329A (en) | 1985-05-06 | 1988-12-28 | Craig J. Brown | Fluid treatment process and apparatus |
US4660411A (en) | 1985-05-31 | 1987-04-28 | Reid Philip L | Apparatus for measuring transmission of volatile substances through films |
US4656865A (en) | 1985-09-09 | 1987-04-14 | The Dow Chemical Company | System for analyzing permeation of a gas or vapor through a film or membrane |
US4876006A (en) | 1985-10-08 | 1989-10-24 | Ebara Corporation | Hollow fiber filter device |
DE3546091A1 (en) | 1985-12-24 | 1987-07-02 | Kernforschungsz Karlsruhe | CROSS-CURRENT MICROFILTER |
US4779448A (en) | 1986-01-28 | 1988-10-25 | Donaldson Company, Inc. | Photoelectric bubble detector apparatus and method |
JPH0742861B2 (en) | 1986-03-10 | 1995-05-15 | ヤマハ発動機株式会社 | Internal combustion engine intake system |
DE3617724A1 (en) | 1986-05-27 | 1987-12-03 | Akzo Gmbh | METHOD FOR DETERMINING THE BLOW POINT OR THE BIGGEST PORE OF MEMBRANES OR FILTER MATERIALS |
FR2600265B1 (en) | 1986-06-20 | 1991-09-06 | Rhone Poulenc Rech | DRY AND HYDROPHILIC SEMI-PERMEABLE MEMBRANES BASED ON VINYLIDENE POLYFLUORIDE |
US4670145A (en) | 1986-07-08 | 1987-06-02 | E. I. Du Pont De Nemours And Company | Multiple bundle fluid separation apparatus |
ES2014516A6 (en) | 1986-07-11 | 1990-07-16 | Mentec Ltd | Cleaning of filters. |
WO1988001529A1 (en) | 1986-09-04 | 1988-03-10 | Memtec Limited | Cleaning of hollow fibre filters |
US4876012A (en) | 1986-09-12 | 1989-10-24 | Memtec Limited | Hollow fibre filter cartridge and header |
US5094750A (en) | 1986-09-12 | 1992-03-10 | Memtec Limited | Hollow fibre filter cartridge and header |
US4846970A (en) | 1987-06-22 | 1989-07-11 | Osmonics, Inc. | Cross-flow filtration membrane test unit |
US4784771A (en) | 1987-08-03 | 1988-11-15 | Environmental Water Technology, Inc. | Method and apparatus for purifying fluids |
US5221478A (en) | 1988-02-05 | 1993-06-22 | The Dow Chemical Company | Chromatographic separation using ion-exchange resins |
US4999038A (en) | 1989-02-07 | 1991-03-12 | Lundberg Bo E H | Filter unit |
DE3904544A1 (en) | 1989-02-15 | 1990-08-16 | Fraunhofer Ges Forschung | POLYMINE MEMBRANES BASED ON POLYVINYLIDENE FLUORIDE, METHOD FOR THE PRODUCTION AND USE THEREOF |
NL8901090A (en) | 1989-04-28 | 1990-11-16 | X Flow Bv | METHOD FOR MANUFACTURING A MICROPOROUS MEMBRANE AND SUCH MEMBRANE |
US5005430A (en) | 1989-05-16 | 1991-04-09 | Electric Power Research Institute, Inc. | Automated membrane filter sampler |
US5138870A (en) | 1989-07-10 | 1992-08-18 | Lyssy Georges H | Apparatus for measuring water vapor permeability through sheet materials |
DE3923128A1 (en) | 1989-07-13 | 1991-01-24 | Akzo Gmbh | FLAX OR CAPILLARY MEMBRANE BASED ON A HOMOGENEOUS MIXTURE OF POLYVINYLIDE FLUORIDE AND OF A SECOND, BY CHEMICAL IMPROVEMENT, HYDROPHILIBLABLE POLYMERS |
WO1991004783A1 (en) | 1989-09-29 | 1991-04-18 | Memtec Limited | Filter cartridge manifold |
US5227063A (en) | 1989-10-03 | 1993-07-13 | Zenon Environmental Inc. | Tubular membrane module |
US5158721A (en) | 1989-11-30 | 1992-10-27 | Millipore Corporation | Porous membrane formed from interpenetrating polymer network having hydrophilic surface |
US5079272A (en) | 1989-11-30 | 1992-01-07 | Millipore Corporation | Porous membrane formed from interpenetrating polymer network having hydrophilic surface |
US5066375A (en) | 1990-03-19 | 1991-11-19 | Ionics, Incorporated | Introducing and removing ion-exchange and other particulates from an assembled electrodeionization stack |
DE69130393T2 (en) | 1990-04-20 | 1999-05-12 | Usf Filtration Ltd | MODULAR, MICROPOROUS FILTER SYSTEMS |
US5364527A (en) | 1990-06-20 | 1994-11-15 | Heinz Zimmermann | Apparatus and process for treating water |
US5104546A (en) | 1990-07-03 | 1992-04-14 | Aluminum Company Of America | Pyrogens separations by ceramic ultrafiltration |
US5639373A (en) | 1995-08-11 | 1997-06-17 | Zenon Environmental Inc. | Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
US5182019A (en) | 1990-08-17 | 1993-01-26 | Zenon Environmental Inc. | Cartridge of hybrid frameless arrays of hollow fiber membranes and module containing an assembly of cartridges |
US5104535A (en) | 1990-08-17 | 1992-04-14 | Zenon Environmental, Inc. | Frameless array of hollow fiber membranes and module containing a stack of arrays |
US5248424A (en) | 1990-08-17 | 1993-09-28 | Zenon Environmental Inc. | Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
JP2904564B2 (en) | 1990-08-31 | 1999-06-14 | オルガノ株式会社 | Method of scrubbing filtration tower using hollow fiber membrane |
FR2666245B1 (en) | 1990-08-31 | 1992-10-23 | Lyonnaise Eaux | METHOD FOR CONTROLLING THE OPERATING MODES OF AN AUTOMATIC WATER FILTRATION APPARATUS ON TUBULAR MEMBRANES. |
JP2858913B2 (en) | 1990-09-26 | 1999-02-17 | オルガノ株式会社 | Filtration method using hollow fiber membrane |
USH1045H (en) | 1990-11-19 | 1992-05-05 | The United States Of America As Represented By The Secretary Of The Army | Air bubble leak detection test device |
US5069065A (en) | 1991-01-16 | 1991-12-03 | Mobil Oil Corporation | Method for measuring wettability of porous rock |
DK0510328T3 (en) | 1991-03-07 | 1996-02-05 | Kubota Kk | Apparatus for treating activated sludge |
DE4119040C2 (en) | 1991-06-10 | 1997-01-02 | Pall Corp | Method and device for testing the operating state of filter elements |
US5211823A (en) | 1991-06-19 | 1993-05-18 | Millipore Corporation | Process for purifying resins utilizing bipolar interface |
DE69230766T2 (en) | 1991-08-07 | 2000-08-31 | Usf Filtration Ltd | CONCENTRATION OF SOLIDS IN A SLUDGE USING CARBON FIBER MEMBRANES |
US5137631A (en) | 1991-10-22 | 1992-08-11 | E. I. Du Pont De Nemours And Company | Multiple bundle permeator |
US5198116A (en) | 1992-02-10 | 1993-03-30 | D.W. Walker & Associates | Method and apparatus for measuring the fouling potential of membrane system feeds |
DE69316325T2 (en) | 1992-02-12 | 1998-05-28 | Mitsubishi Rayon Co | HOLLOW FIBER MEMBRANE MODULE |
FR2697446B1 (en) | 1992-11-03 | 1994-12-02 | Aquasource | Process for the treatment of a fluid containing suspended and dissolved materials, using separation membranes. |
EP0592066B1 (en) | 1992-05-01 | 1997-09-03 | Memtec Japan Limited | Apparatus for testing membrane filter integrity |
EP0641247B1 (en) | 1992-05-18 | 1996-10-30 | Minntech Corporation | Hollow fiber filter cartridge and method of manufacture |
JP3364804B2 (en) * | 1992-11-02 | 2003-01-08 | メムテック リミテッド | Fiber monitoring device |
US5320760A (en) | 1992-12-07 | 1994-06-14 | E. I. Du Pont De Nemours And Company | Method of determining filter pluggage by measuring pressures |
US5401401A (en) | 1993-01-13 | 1995-03-28 | Aquaria Inc. | Hang on tank canister filter |
US5389260A (en) | 1993-04-02 | 1995-02-14 | Clack Corporation | Brine seal for tubular filter |
US5361625A (en) | 1993-04-29 | 1994-11-08 | Ylvisaker Jon A | Method and device for the measurement of barrier properties of films against gases |
US5297420A (en) | 1993-05-19 | 1994-03-29 | Mobil Oil Corporation | Apparatus and method for measuring relative permeability and capillary pressure of porous rock |
FR2705734B1 (en) | 1993-05-25 | 1995-06-30 | Snecma | Method and device for improving the safety of fluid filters. |
JP2721787B2 (en) * | 1993-09-06 | 1998-03-04 | 日本メムテック株式会社 | Backwashing method for hollow fiber membrane module |
US5419816A (en) | 1993-10-27 | 1995-05-30 | Halox Technologies Corporation | Electrolytic process and apparatus for the controlled oxidation of inorganic and organic species in aqueous solutions |
FR2713220B1 (en) | 1993-11-30 | 1996-03-08 | Omnium Traitement Valorisa | Installation of water purification with submerged filter membranes. |
US5403479A (en) | 1993-12-20 | 1995-04-04 | Zenon Environmental Inc. | In situ cleaning system for fouled membranes |
US5531900A (en) | 1994-07-07 | 1996-07-02 | University Of Arizona | Modification of polyvinylidene fluoride membrane and method of filtering |
US5470469A (en) | 1994-09-16 | 1995-11-28 | E. I. Du Pont De Nemours And Company | Hollow fiber cartridge |
DE69633806T2 (en) * | 1995-08-11 | 2005-05-12 | Zenon Environmental Inc., Oakville | Device for removing permeate from a liquid substrate with several components |
US6193890B1 (en) * | 1995-08-11 | 2001-02-27 | Zenon Environmental Inc. | System for maintaining a clean skein of hollow fibers while filtering suspended solids |
US5944997A (en) * | 1995-08-11 | 1999-08-31 | Zenon Environmental Inc. | System for maintaining a clean skein of hollow fibers while filtering suspended solids |
US6077435A (en) * | 1996-03-15 | 2000-06-20 | Usf Filtration And Separations Group Inc. | Filtration monitoring and control system |
JP3686918B2 (en) * | 1996-10-16 | 2005-08-24 | 森村興産株式会社 | Filtration device for solid-liquid separation of sewage, wastewater, etc. |
USD396046S (en) | 1996-10-24 | 1998-07-14 | Allen Scheel | Steer device for an outboard motor |
AUPO412596A0 (en) * | 1996-12-10 | 1997-01-09 | Memtec America Corporation | Improved microporous membrane filtration assembly |
CA2639642C (en) * | 1996-12-20 | 2013-01-15 | Siemens Water Technologies Corp. | Scouring method |
USD396726S (en) | 1997-02-06 | 1998-08-04 | Abc Group | Combined air intake manifold and filter |
US6048454A (en) * | 1997-03-18 | 2000-04-11 | Jenkins; Dan | Oil filter pack and assembly |
AUPO709797A0 (en) * | 1997-05-30 | 1997-06-26 | Usf Filtration And Separations Group Inc. | Predicting logarithmic reduction values |
US6354444B1 (en) * | 1997-07-01 | 2002-03-12 | Zenon Environmental Inc. | Hollow fiber membrane and braided tubular support therefor |
US5914039A (en) * | 1997-07-01 | 1999-06-22 | Zenon Environmental Inc. | Filtration membrane with calcined α-alumina particles therein |
US6641733B2 (en) * | 1998-09-25 | 2003-11-04 | U. S. Filter Wastewater Group, Inc. | Apparatus and method for cleaning membrane filtration modules |
US6039872A (en) * | 1997-10-27 | 2000-03-21 | Pall Corporation | Hydrophilic membrane |
US6083393A (en) * | 1997-10-27 | 2000-07-04 | Pall Corporation | Hydrophilic membrane |
TWI222895B (en) * | 1998-09-25 | 2004-11-01 | Usf Filtration & Separations | Apparatus and method for cleaning membrane filtration modules |
ATE264272T1 (en) * | 1998-10-09 | 2004-04-15 | Zenon Environmental Inc | CYCLICAL VENTILATION SYSTEM FOR DIVING MEMBRANE MODULE |
US6550747B2 (en) * | 1998-10-09 | 2003-04-22 | Zenon Environmental Inc. | Cyclic aeration system for submerged membrane modules |
ATE292511T1 (en) * | 1998-11-23 | 2005-04-15 | Zenon Environmental Inc | WATER FILTRATION USING UNDERWATER MEMBRANES |
US6547968B1 (en) * | 1999-07-30 | 2003-04-15 | Zenon Environmental Inc. | Pulsed backwash for immersed membranes |
USD478913S1 (en) * | 2000-02-24 | 2003-08-26 | Usf Filtration And Separations Group, Inc. | Manifold header |
US6440303B2 (en) * | 2000-03-02 | 2002-08-27 | Chapin Manufacturing, Inc. | Fluid filter |
AUPQ680100A0 (en) * | 2000-04-10 | 2000-05-11 | Usf Filtration And Separations Group Inc. | Hollow fibre restraining system |
JP2002058968A (en) * | 2000-08-18 | 2002-02-26 | Suehiro Tadashi | Filter |
DE60213184T2 (en) * | 2001-11-16 | 2007-06-28 | U.S. Filter Wastewater Group, Inc. | Method for cleaning membranes |
-
2001
- 2001-09-18 AU AUPR7742A patent/AUPR774201A0/en not_active Abandoned
-
2002
- 2002-09-17 JP JP2003528664A patent/JP2005502467A/en active Pending
- 2002-09-17 CN CNB028183215A patent/CN1265867C/en not_active Expired - Fee Related
- 2002-09-17 DE DE60221555T patent/DE60221555T2/en not_active Expired - Lifetime
- 2002-09-17 MY MYPI20023449A patent/MY135444A/en unknown
- 2002-09-17 AT AT02764383T patent/ATE368504T1/en not_active IP Right Cessation
- 2002-09-17 WO PCT/AU2002/001272 patent/WO2003024575A1/en active IP Right Grant
- 2002-09-17 CA CA2460207A patent/CA2460207C/en not_active Expired - Fee Related
- 2002-09-17 EP EP02764383A patent/EP1441841B1/en not_active Expired - Lifetime
-
2004
- 2004-03-16 US US10/802,691 patent/US7018533B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996007470A1 (en) * | 1994-09-09 | 1996-03-14 | Memtec America Corporation | Cleaning of hollow fibre membranes |
WO1998022204A1 (en) * | 1996-11-21 | 1998-05-28 | Memtec America Corporation | Microporous membrane filtration and backwashing process |
WO2001036075A1 (en) * | 1999-11-18 | 2001-05-25 | Zenon Environmental Inc. | Immersed membrane filtration system and overflow process |
Cited By (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8518256B2 (en) | 2001-04-04 | 2013-08-27 | Siemens Industry, Inc. | Membrane module |
EP1420874B1 (en) * | 2001-08-09 | 2011-01-19 | Siemens Water Technologies Corp. | Method of cleaning membrane modules |
EP1420874A1 (en) * | 2001-08-09 | 2004-05-26 | U.S. Filter Wastewater Group, Inc. | Method of cleaning membrane modules |
WO2003013706A1 (en) | 2001-08-09 | 2003-02-20 | U.S. Filter Wastewater Group, Inc. | Method of cleaning membrane modules |
US8512568B2 (en) | 2001-08-09 | 2013-08-20 | Siemens Industry, Inc. | Method of cleaning membrane modules |
US8182687B2 (en) | 2002-06-18 | 2012-05-22 | Siemens Industry, Inc. | Methods of minimising the effect of integrity loss in hollow fibre membrane modules |
US8268176B2 (en) | 2003-08-29 | 2012-09-18 | Siemens Industry, Inc. | Backwash |
WO2005046849A1 (en) | 2003-11-14 | 2005-05-26 | U.S. Filter Wastewater Group, Inc. | Improved module cleaning method |
EP1687078A1 (en) * | 2003-11-14 | 2006-08-09 | U.S. Filter Wastewater Group, Inc. | Improved module cleaning method |
EP1687078A4 (en) * | 2003-11-14 | 2008-10-01 | Siemens Water Tech Corp | Improved 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 |
US8790515B2 (en) | 2004-09-07 | 2014-07-29 | Evoqua Water Technologies Llc | Reduction of backwash liquid waste |
AU2005284677B2 (en) * | 2004-09-14 | 2010-12-23 | Evoqua Water Technologies Llc | Methods and apparatus for removing solids from a membrane module |
JP4896025B2 (en) * | 2004-09-14 | 2012-03-14 | 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 | Method and apparatus for removing solids from membrane modules |
EP1799334A4 (en) * | 2004-09-14 | 2009-05-06 | Siemens Water Tech Corp | Methods and apparatus for removing solids from a membrane module |
JP2008513187A (en) * | 2004-09-14 | 2008-05-01 | 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 | Method and apparatus for removing solids from membrane modules |
WO2006029456A1 (en) | 2004-09-14 | 2006-03-23 | Siemens Water Technologies Corp. | Methods and apparatus for removing solids from a membrane module |
EP1799334A1 (en) * | 2004-09-14 | 2007-06-27 | Siemens Water Technologies Corp. | Methods and apparatus for removing solids from a membrane module |
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 |
EP1642636A1 (en) * | 2004-09-30 | 2006-04-05 | HydroSep AG | Fluid treatment system and method |
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 |
WO2007022576A1 (en) * | 2005-08-22 | 2007-03-01 | Siemens Water Technologies Corp. | An assembly for water filtration using a tube manifold to minimise backwash |
AU2006284524B2 (en) * | 2005-08-22 | 2011-04-21 | Evoqua Water Technologies Llc | 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 |
US8623202B2 (en) | 2007-04-02 | 2014-01-07 | Siemens Water Technologies Llc | 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 |
US8622222B2 (en) | 2007-05-29 | 2014-01-07 | Siemens Water Technologies Llc | Membrane cleaning with pulsed airlift pump |
US8372276B2 (en) | 2007-05-29 | 2013-02-12 | Siemens Industry, Inc. | Membrane cleaning with pulsed airlift pump |
US8840783B2 (en) | 2007-05-29 | 2014-09-23 | Evoqua Water Technologies Llc | Water treatment membrane cleaning with pulsed airlift pump |
US8287743B2 (en) | 2007-05-29 | 2012-10-16 | Siemens Industry, Inc. | Membrane cleaning with pulsed airlift pump |
US9573824B2 (en) | 2007-05-29 | 2017-02-21 | Evoqua Water Technologies Llc | Membrane cleaning with pulsed airlift pump |
US10507431B2 (en) | 2007-05-29 | 2019-12-17 | Evoqua Water Technologies Llc | Membrane cleaning with pulsed airlift pump |
US9206057B2 (en) | 2007-05-29 | 2015-12-08 | Evoqua Water Technologies Llc | Membrane cleaning with pulsed airlift pump |
US9023206B2 (en) | 2008-07-24 | 2015-05-05 | Evoqua Water Technologies Llc | Frame system for membrane filtration modules |
US8382981B2 (en) | 2008-07-24 | 2013-02-26 | Siemens Industry, Inc. | Frame system for membrane filtration modules |
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 |
US10441920B2 (en) | 2010-04-30 | 2019-10-15 | Evoqua Water Technologies Llc | Fluid flow distribution device |
US9630147B2 (en) | 2010-09-24 | 2017-04-25 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
US9022224B2 (en) | 2010-09-24 | 2015-05-05 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
US9925499B2 (en) | 2011-09-30 | 2018-03-27 | Evoqua Water Technologies Llc | Isolation valve with seal for end cap of a filtration system |
US11065569B2 (en) | 2011-09-30 | 2021-07-20 | Rohm And Haas Electronic Materials Singapore Pte. Ltd. | Manifold arrangement |
US10391432B2 (en) | 2011-09-30 | 2019-08-27 | Evoqua Water Technologies Llc | Manifold arrangement |
US9604166B2 (en) | 2011-09-30 | 2017-03-28 | Evoqua Water Technologies Llc | Manifold arrangement |
US9533261B2 (en) | 2012-06-28 | 2017-01-03 | Evoqua Water Technologies Llc | Potting method |
US9962865B2 (en) | 2012-09-26 | 2018-05-08 | Evoqua Water Technologies Llc | Membrane potting methods |
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 |
US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
US11173453B2 (en) | 2013-10-02 | 2021-11-16 | Rohm And Haas Electronic Materials Singapores | Method and device for repairing a membrane filtration module |
US10322375B2 (en) | 2015-07-14 | 2019-06-18 | Evoqua Water Technologies Llc | Aeration device for filtration system |
WO2020004381A1 (en) * | 2018-06-26 | 2020-01-02 | 独立行政法人石油天然ガス・金属鉱物資源機構 | Separation membrane module |
US11291955B2 (en) | 2018-06-26 | 2022-04-05 | Mitsubishi Chemical Corporation | Separation membrane module |
US11583807B2 (en) | 2018-06-26 | 2023-02-21 | Mitsubishi Chemical Corporation | Separation membrane module |
JP7459792B2 (en) | 2018-06-26 | 2024-04-02 | 三菱ケミカル株式会社 | Separation membrane module |
Also Published As
Publication number | Publication date |
---|---|
US7018533B2 (en) | 2006-03-28 |
CA2460207C (en) | 2011-05-17 |
EP1441841A4 (en) | 2005-10-05 |
EP1441841A1 (en) | 2004-08-04 |
ATE368504T1 (en) | 2007-08-15 |
DE60221555D1 (en) | 2007-09-13 |
CN1555287A (en) | 2004-12-15 |
CA2460207A1 (en) | 2003-03-27 |
JP2005502467A (en) | 2005-01-27 |
DE60221555T2 (en) | 2007-11-22 |
CN1265867C (en) | 2006-07-26 |
AUPR774201A0 (en) | 2001-10-11 |
MY135444A (en) | 2008-04-30 |
EP1441841B1 (en) | 2007-08-01 |
US20040238442A1 (en) | 2004-12-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2460207C (en) | High solids module | |
AU2005284677B2 (en) | Methods and apparatus for removing solids from a membrane module | |
US8268176B2 (en) | Backwash | |
CA2456479C (en) | Method of cleaning membrane modules | |
US4980066A (en) | Multiple membrane separation systems | |
US20070034569A1 (en) | Backwash and cleaning method | |
AU2002322160A1 (en) | Method of cleaning membrane modules | |
AU2002328672B2 (en) | High solids module | |
AU2002328672A1 (en) | High solids module | |
AU2004267874B2 (en) | Backwash | |
AU2004273542A1 (en) | Backwash and cleaning method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG US UZ VC VN YU ZA ZM |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002328672 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2460207 Country of ref document: CA Ref document number: 630/DELNP/2004 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10802691 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003528664 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20028183215 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002764383 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002764383 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002764383 Country of ref document: EP |