ZA98178B - Improving the performance of reverse osmosis membranes used in the removal of dissolved solids from liquids - Google Patents

Improving the performance of reverse osmosis membranes used in the removal of dissolved solids from liquids

Info

Publication number
ZA98178B
ZA98178B ZA98178A ZA98178A ZA98178B ZA 98178 B ZA98178 B ZA 98178B ZA 98178 A ZA98178 A ZA 98178A ZA 98178 A ZA98178 A ZA 98178A ZA 98178 B ZA98178 B ZA 98178B
Authority
ZA
South Africa
Prior art keywords
liquids
removal
improving
performance
reverse osmosis
Prior art date
Application number
ZA98178A
Other languages
English (en)
Inventor
William Graham
Original Assignee
Garfield Int Invest Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Garfield Int Invest Ltd filed Critical Garfield Int Invest Ltd
Publication of ZA98178B publication Critical patent/ZA98178B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/484—Treatment of water, waste water, or sewage with magnetic or electric fields using electromagnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10—Accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • 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
    • B01D2321/24—Magnetic effects
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/48—Devices for applying magnetic or electric fields
    • C02F2201/483—Devices for applying magnetic or electric fields using coils
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/141—Wind power

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Physical Water Treatments (AREA)
  • Water Treatment By Sorption (AREA)
ZA98178A 1997-01-09 1998-01-09 Improving the performance of reverse osmosis membranes used in the removal of dissolved solids from liquids ZA98178B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA97187 1997-01-09

Publications (1)

Publication Number Publication Date
ZA98178B true ZA98178B (en) 1998-07-31

Family

ID=58232800

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA98178A ZA98178B (en) 1997-01-09 1998-01-09 Improving the performance of reverse osmosis membranes used in the removal of dissolved solids from liquids

Country Status (44)

Country Link
US (1) US6217773B1 (da)
EP (1) EP0951447B1 (da)
JP (1) JP4307560B2 (da)
KR (1) KR100500038B1 (da)
CN (1) CN1136949C (da)
AP (1) AP1097A (da)
AR (1) AR011065A1 (da)
AT (1) ATE301617T1 (da)
AU (1) AU5565898A (da)
BG (1) BG63749B1 (da)
BR (1) BR9807069A (da)
CA (1) CA2276599C (da)
CO (1) CO4930300A1 (da)
CZ (1) CZ294354B6 (da)
DE (1) DE69831134T2 (da)
DK (1) DK0951447T3 (da)
DZ (1) DZ2396A1 (da)
EA (1) EA002929B1 (da)
EE (1) EE04663B1 (da)
EG (1) EG21382A (da)
ES (1) ES2247672T3 (da)
GB (1) GB2335153B (da)
GE (1) GEP20022837B (da)
HU (1) HU225090B1 (da)
ID (1) ID22664A (da)
IL (1) IL130595A (da)
IS (1) IS2252B (da)
JO (1) JO2000B1 (da)
MA (1) MA26028A1 (da)
MY (1) MY130462A (da)
NO (1) NO319568B1 (da)
NZ (1) NZ336423A (da)
OA (1) OA11075A (da)
PA (1) PA8460401A1 (da)
PE (1) PE72099A1 (da)
PL (1) PL191281B1 (da)
SA (1) SA98180897B1 (da)
SK (1) SK284615B6 (da)
TN (1) TNSN98006A1 (da)
TR (1) TR199901965T2 (da)
TW (1) TW460417B (da)
UA (1) UA52717C2 (da)
WO (1) WO1998030501A2 (da)
ZA (1) ZA98178B (da)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR199801054T2 (xx) * 1995-12-13 2001-05-21 Graham William Suyun tuzunun giderilmesi.
CO5241319A1 (es) * 1999-03-29 2003-01-31 Garfield Int Invest Ltd Cartuchos de osmosis invertida y membranas de osmosis invertida
EP1232119B1 (de) * 1999-11-23 2004-11-03 Dietrich Reichwein Verfahren und vorrichtung zur behandlung von flüssigkeiten
US6783687B2 (en) 2002-02-13 2004-08-31 Gordon L. Richard Method and apparatus for separating ions from a fluid stream
US6852219B2 (en) * 2002-07-22 2005-02-08 John M. Hammond Fluid separation and delivery apparatus and method
AU2003268467A1 (en) * 2002-09-04 2004-03-29 Biolab, Inc. Disinfection of reverse osmosis membrane
US20050056579A1 (en) * 2003-04-01 2005-03-17 Hodgson John Andrew Water magnetizer
US6971409B2 (en) 2003-05-07 2005-12-06 Dietrich Reichwein Method and apparatus for the treatment of fluids
US7632410B2 (en) * 2003-08-21 2009-12-15 Christopher Heiss Universal water purification system
WO2005119007A1 (en) 2004-05-28 2005-12-15 Bp Exploration Operating Company Limited Desalination method
CN1303003C (zh) * 2004-10-28 2007-03-07 王建中 反渗透海水淡化脉冲电磁场预处理方法
DE102004062535A1 (de) * 2004-12-24 2006-07-06 Forschungszentrum Karlsruhe Gmbh Semipermeables Membransystem für magnetische Partikelfraktionen
CN100396365C (zh) * 2005-01-21 2008-06-25 赵仁兴 一种改善人工合成固膜分离性能的方法
CN1312052C (zh) * 2005-03-04 2007-04-25 北京众博达石油科技有限公司 微耗智能广谱电子除垢防垢方法
EP1874427A1 (en) * 2005-03-29 2008-01-09 Grahamtek Technologies Singapore Pte Ltd Manufacture of casings for use in the desalination of water and the filtration of liquids
CN101151083B (zh) * 2005-03-29 2010-06-23 格拉哈姆泰克技术新加坡私人有限公司 用于淡化水和过滤液体的壳体的制造
GB2431154B (en) * 2005-10-15 2011-05-18 Daniel Stefanini Purification treatment of water
US7470349B1 (en) * 2006-04-11 2008-12-30 Joel Miller Pressure desalination
US8119008B2 (en) 2006-07-10 2012-02-21 Christopher Heiss Fluid purification methods and devices
KR100840512B1 (ko) 2006-07-10 2008-06-23 서희동 해수나 해양 심층수를 농업용수로 처리하는 방법
NL1032346C2 (nl) * 2006-08-18 2008-02-19 Vitens N V Werkwijze voor het scheiden van bestanddelen uit een vloeistof.
WO2009009465A1 (en) * 2007-07-06 2009-01-15 Christopher William Heiss Electrocoagulation reactor and water treatment system and method
US20110120870A1 (en) * 2007-08-10 2011-05-26 Eric John Kruger Method and apparatus for treating a fluid
US8187444B2 (en) * 2007-08-10 2012-05-29 Eric John Kruger Fluid treatment device
DE102008002727B4 (de) * 2008-06-27 2020-12-17 Brita Gmbh Vorrichtung zur Behandlung von Wasser, insbesondere Filtervorrichtung, und Kartusche
EP2331240A2 (en) 2008-08-28 2011-06-15 Microlin, LLC Apparatus and method for delivering beneficial liquids at steady rate
US20110192179A1 (en) * 2010-02-05 2011-08-11 Freije Iii William F Evaporative heat transfer system and method
US9475709B2 (en) 2010-08-25 2016-10-25 Lockheed Martin Corporation Perforated graphene deionization or desalination
RU2495496C2 (ru) * 2011-02-24 2013-10-10 Общество с ограниченной ответственностью "Системы и технологии" Автомат для розничной продажи воды
US9028663B2 (en) 2012-03-21 2015-05-12 Lockheed Martin Corporation Molecular separation device
US20130277305A1 (en) * 2012-04-19 2013-10-24 Lockheed Martin Corporation Selectively perforated graphene membranes for compound harvest, capture and retention
US9610546B2 (en) 2014-03-12 2017-04-04 Lockheed Martin Corporation Separation membranes formed from perforated graphene and methods for use thereof
US9834809B2 (en) 2014-02-28 2017-12-05 Lockheed Martin Corporation Syringe for obtaining nano-sized materials for selective assays and related methods of use
US9844757B2 (en) 2014-03-12 2017-12-19 Lockheed Martin Corporation Separation membranes formed from perforated graphene and methods for use thereof
US10980919B2 (en) 2016-04-14 2021-04-20 Lockheed Martin Corporation Methods for in vivo and in vitro use of graphene and other two-dimensional materials
US10653824B2 (en) 2012-05-25 2020-05-19 Lockheed Martin Corporation Two-dimensional materials and uses thereof
US9744617B2 (en) 2014-01-31 2017-08-29 Lockheed Martin Corporation Methods for perforating multi-layer graphene through ion bombardment
AU2013274900A1 (en) 2012-06-11 2014-11-27 Evoqua Water Technologies Llc Treatment using fixed film processes and ballasted settling
WO2014052674A1 (en) * 2012-09-26 2014-04-03 Evoqua Water Technologies Llc System for measuring the concentration of magnetic ballast in a slurry
US12350627B2 (en) 2013-02-28 2025-07-08 Aqua Membranes, Inc. Permeate flow patterns
US9592475B2 (en) 2013-03-12 2017-03-14 Lockheed Martin Corporation Method for forming perforated graphene with uniform aperture size
AU2014203279B2 (en) * 2013-06-19 2019-01-24 Hydrosmart A Liquid Treatment Device
US9572918B2 (en) 2013-06-21 2017-02-21 Lockheed Martin Corporation Graphene-based filter for isolating a substance from blood
CA2938273A1 (en) 2014-01-31 2015-08-06 Peter V. Bedworth Perforating two-dimensional materials using broad ion field
KR20160142282A (ko) 2014-01-31 2016-12-12 록히드 마틴 코포레이션 다공성 비-희생 지지층을 사용하여 2차원 물질로 복합 구조를 형성하기 위한 프로세스
CN103880120B (zh) * 2014-03-28 2015-12-02 张英华 低、高纯度旋转磁场与水泵式反渗透海水淡化装置
SG11201701654UA (en) 2014-09-02 2017-04-27 Lockheed Corp Hemodialysis and hemofiltration membranes based upon a two-dimensional membrane material and methods employing same
SG10201909456TA (en) * 2015-04-24 2019-11-28 Univ Nanyang Tech Method and apparatus for assessing a state of fouling of a reverse osmosis system
CA2994549A1 (en) 2015-08-05 2017-02-09 Lockheed Martin Corporation Perforatable sheets of graphene-based material
AU2016303049A1 (en) 2015-08-06 2018-03-01 Lockheed Martin Corporation Nanoparticle modification and perforation of graphene
SG11201808962RA (en) 2016-04-14 2018-11-29 Lockheed Corp Method for treating graphene sheets for large-scale transfer using free-float method
SG11201808961QA (en) 2016-04-14 2018-11-29 Lockheed Corp Methods for in situ monitoring and control of defect formation or healing
KR20190018411A (ko) 2016-04-14 2019-02-22 록히드 마틴 코포레이션 그래핀 결함의 선택적 계면 완화
WO2017180135A1 (en) 2016-04-14 2017-10-19 Lockheed Martin Corporation Membranes with tunable selectivity
KR20190018410A (ko) 2016-04-14 2019-02-22 록히드 마틴 코포레이션 흐름 통로들을 갖는 2차원 막 구조들
JP2019529099A (ja) 2016-09-20 2019-10-17 アクア メンブレインズ エルエルシー 透過流パターン
WO2018094287A1 (en) 2016-11-19 2018-05-24 Aqua Membranes Llc Interfernce patterns for spiral-wound elements
EP3609607B1 (en) 2017-04-12 2024-05-22 Aqua Membranes, Inc. Graded spacers for filtration wound elements
WO2018195367A1 (en) 2017-04-20 2018-10-25 Aqua Membranes Llc Mixing-promoting spacer patterns for spiral-wound elements
US11083997B2 (en) 2017-04-20 2021-08-10 Aqua Membranes Inc. Non-nesting, non-deforming patterns for spiral-wound elements
US11745144B2 (en) 2017-10-13 2023-09-05 Aqua Membranes Inc. Bridge support and reduced feed spacers for spiral-wound elements
US10899638B2 (en) * 2018-01-31 2021-01-26 Organocat, LLC Method and system for water electromagnetic activation and active metals generation
KR102898557B1 (ko) 2019-01-27 2025-12-09 아쿠아 멤브레인스 인코포레이티드 복합막
KR20220055466A (ko) 2019-08-06 2022-05-03 아쿠아 멤브레인스 인코포레이티드 나선형-권취 요소를 위한 바람직한 유동 경로
US11633700B2 (en) 2020-04-07 2023-04-25 Aqua Membranes Inc. Independent spacers and methods
CN113092673B (zh) * 2021-03-30 2022-11-01 惠州晟泽新材料有限公司 一种多功能膜分离实验设备
WO2023129906A1 (en) 2021-12-28 2023-07-06 Aqua Membranes, Inc. High rejection spiral wound elements with protective features
US20230324009A1 (en) * 2022-04-07 2023-10-12 Ford Global Technologies, Llc Compressed hydrogen storage units and methods thereof
CN119018992A (zh) * 2023-05-23 2024-11-26 宁波方太厨具有限公司 净水设备的水垢处理方法、系统、设备及存储介质

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990968A (en) * 1971-08-19 1976-11-09 Desares Stiftung Fur Forderung Der Forschung Zur Entsalzung Des Wassers Means for increasing the flow across a reverse osmosis membrane using an alternating electric field
JPS5217232B2 (da) * 1972-02-23 1977-05-13
AT346252B (de) * 1976-11-23 1978-11-10 Mach Guido Verfahren zum entsalzen von wasser und vorrichtung zum durchfuehren des verfahrens
JPS58159810A (ja) * 1982-03-18 1983-09-22 Nitto Electric Ind Co Ltd 溶液分離管
JPS6091214U (ja) * 1983-11-24 1985-06-22 株式会社日立製作所 磁気分離装置
JPS60189917A (ja) * 1984-03-09 1985-09-27 Matsushita Electric Ind Co Ltd ボイスコイルの製造方法
JPS61118104A (ja) * 1984-10-22 1986-06-05 Nitto Electric Ind Co Ltd 液体分離装置
RU1789253C (ru) * 1987-12-14 1993-01-23 Институт "Союзгипроводхоз" Мембранна чейка
US4865747A (en) * 1988-01-27 1989-09-12 Aqua-D Corp. Electromagnetic fluid treating device and method
US5224922A (en) * 1988-05-19 1993-07-06 Kurtz Warren H Quasistatic biological cell and tissue modifier
ATE120722T1 (de) * 1989-07-04 1995-04-15 Elfriede Schulze Vorrichtung zur beseitigung von kesselstein bzw. zur verhütung der bildung von kesselstein.
DE3938245A1 (de) * 1989-11-17 1991-05-23 Erwin Lotze Filtervorrichtung mit magnetisch aktivierbarem filtermaterial
JPH0549029U (ja) * 1991-12-09 1993-06-29 水道機工株式会社 透過膜によるろ過装置
JPH05220485A (ja) * 1992-02-14 1993-08-31 Maekawa Seisakusho:Kk 高周波誘導電磁場を用いた水処理方法
GB2294416A (en) * 1994-10-28 1996-05-01 Michael Ashton Liquid dispensing apparatus

Also Published As

Publication number Publication date
ES2247672T3 (es) 2006-03-01
JO2000B1 (en) 1999-05-15
NO993397D0 (no) 1999-07-09
HUP0000959A3 (en) 2001-07-30
ID22664A (id) 1999-12-02
CN1243454A (zh) 2000-02-02
HU225090B1 (en) 2006-06-28
PE72099A1 (es) 1999-08-05
IL130595A0 (en) 2000-06-01
PL334488A1 (en) 2000-02-28
DZ2396A1 (fr) 2003-06-04
MY130462A (en) 2007-06-29
IL130595A (en) 2004-05-12
GB9914704D0 (en) 1999-08-25
TNSN98006A1 (fr) 2000-12-29
NZ336423A (en) 2001-04-27
WO1998030501A3 (en) 1998-09-11
SK92499A3 (en) 2000-01-18
IS2252B (is) 2007-06-15
EA002929B1 (ru) 2002-10-31
PL191281B1 (pl) 2006-04-28
CZ294354B6 (cs) 2004-12-15
CA2276599C (en) 2005-08-23
AR011065A1 (es) 2000-08-02
KR100500038B1 (ko) 2005-07-07
PA8460401A1 (es) 2001-04-30
AP1097A (en) 2002-08-26
AP9901591A0 (en) 1999-06-30
ATE301617T1 (de) 2005-08-15
EP0951447B1 (en) 2005-08-10
KR20000070036A (ko) 2000-11-25
IS5096A (is) 1999-06-29
UA52717C2 (uk) 2003-01-15
OA11075A (en) 2003-03-17
NO319568B1 (no) 2005-08-29
CZ9902441A3 (cs) 2000-11-15
EE9900276A (et) 1999-12-15
GB2335153A8 (en) 1999-10-08
CO4930300A1 (es) 2000-06-27
SK284615B6 (sk) 2005-07-01
DK0951447T3 (da) 2005-12-12
EG21382A (en) 2001-09-30
CN1136949C (zh) 2004-02-04
JP4307560B2 (ja) 2009-08-05
NO993397L (no) 1999-07-09
BG103272A (en) 1999-09-30
EP0951447A2 (en) 1999-10-27
EA199900574A1 (ru) 1999-12-29
HUP0000959A1 (hu) 2000-08-28
US6217773B1 (en) 2001-04-17
AU5565898A (en) 1998-08-03
DE69831134T2 (de) 2006-06-08
EE04663B1 (et) 2006-08-15
GB2335153B (en) 2000-11-29
WO1998030501A2 (en) 1998-07-16
GB2335153A (en) 1999-09-15
CA2276599A1 (en) 1998-07-16
TW460417B (en) 2001-10-21
JP2001518005A (ja) 2001-10-09
TR199901965T2 (xx) 1999-12-21
BR9807069A (pt) 2000-05-02
GEP20022837B (en) 2002-11-25
SA98180897B1 (ar) 2006-04-22
BG63749B1 (bg) 2002-11-29
DE69831134D1 (de) 2005-09-15
MA26028A1 (fr) 2004-04-01

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