DE69102372D1 - Verfahren zum Steuern der Betriebsarten einer automatischen Wasserfiltervorrichtung mit rohrförmigen Membranen. - Google Patents

Verfahren zum Steuern der Betriebsarten einer automatischen Wasserfiltervorrichtung mit rohrförmigen Membranen.

Info

Publication number
DE69102372D1
DE69102372D1 DE69102372T DE69102372T DE69102372D1 DE 69102372 D1 DE69102372 D1 DE 69102372D1 DE 69102372 T DE69102372 T DE 69102372T DE 69102372 T DE69102372 T DE 69102372T DE 69102372 D1 DE69102372 D1 DE 69102372D1
Authority
DE
Germany
Prior art keywords
filtering
cross
flow
types
mode
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.)
Expired - Lifetime
Application number
DE69102372T
Other languages
English (en)
Other versions
DE69102372T2 (de
Inventor
Christophe Anselme
Loic Daniel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LYONAISE DES EAUX DUMEZ NANTER
Suez International SAS
Original Assignee
LYONAISE DES EAUX DUMEZ NANTER
Degremont SA
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 LYONAISE DES EAUX DUMEZ NANTER, Degremont SA filed Critical LYONAISE DES EAUX DUMEZ NANTER
Application granted granted Critical
Publication of DE69102372D1 publication Critical patent/DE69102372D1/de
Publication of DE69102372T2 publication Critical patent/DE69102372T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B01D61/14—Ultrafiltration; Microfiltration
    • 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
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/22—Controlling or regulating
    • 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
DE69102372T 1990-08-31 1991-08-07 Verfahren zum Steuern der Betriebsarten einer automatischen Wasserfiltervorrichtung mit rohrförmigen Membranen. Expired - Lifetime DE69102372T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9010864A FR2666245B1 (fr) 1990-08-31 1990-08-31 Procede de commande des modes de fonctionnement d'un appareil automatique de filtration d'eau sur membranes tubulaires.

Publications (2)

Publication Number Publication Date
DE69102372D1 true DE69102372D1 (de) 1994-07-14
DE69102372T2 DE69102372T2 (de) 1994-09-29

Family

ID=9399991

Family Applications (2)

Application Number Title Priority Date Filing Date
DE199191402203T Pending DE473486T1 (de) 1990-08-31 1991-08-07 Verfahren zum steuern der betriebsarten einer automatischen wasserfiltervorrichtung mit rohrfoermigen membranen.
DE69102372T Expired - Lifetime DE69102372T2 (de) 1990-08-31 1991-08-07 Verfahren zum Steuern der Betriebsarten einer automatischen Wasserfiltervorrichtung mit rohrförmigen Membranen.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE199191402203T Pending DE473486T1 (de) 1990-08-31 1991-08-07 Verfahren zum steuern der betriebsarten einer automatischen wasserfiltervorrichtung mit rohrfoermigen membranen.

Country Status (8)

Country Link
US (1) US5066402A (de)
EP (1) EP0473486B1 (de)
JP (1) JP2860191B2 (de)
AT (1) ATE106770T1 (de)
CA (1) CA2049819C (de)
DE (2) DE473486T1 (de)
ES (1) ES2029784T3 (de)
FR (1) FR2666245B1 (de)

Families Citing this family (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332175C2 (de) * 1993-09-22 1996-04-18 Seitz Filter Werke Verfahren und Vorrichtung zur Cross-Flow-Filtration von Flüssigkeiten mittels CMF-Modulen
NL9400647A (nl) * 1994-04-22 1995-12-01 Stork Friesland Bv Membraanfiltratiesysteem, werkwijze voor het onderwerpen van een vloeistof aan membraanfiltratie en werkwijze voor het reinigen van een dergelijk membraanfiltratiesysteem.
JPH07313850A (ja) * 1994-05-30 1995-12-05 Kubota Corp 浸漬型セラミック膜分離装置の逆洗方法
FR2723002B1 (fr) * 1994-07-26 1996-09-06 Hospal Ind Dispositif et procede pour preparer un liquide de traitement par filtration
US6359114B1 (en) * 1995-06-07 2002-03-19 Aphton Corp. System for method for the modification and purification of proteins
US6077435A (en) * 1996-03-15 2000-06-20 Usf Filtration And Separations Group Inc. Filtration monitoring and control system
US6139724A (en) * 1996-03-21 2000-10-31 Seitz-Filter-Werke Gmbh Und Co. Procedure and device for filtration of fluids using MF modules
JP4471240B2 (ja) 1996-05-31 2010-06-02 ダブリューエム インターナショナル リミテッド 改良型水処理システム
US6099733A (en) * 1996-12-09 2000-08-08 Atp International Ltd. Water treatment system
JP3341601B2 (ja) * 1996-10-18 2002-11-05 日本電気株式会社 研磨剤の回収再利用方法および装置
NZ336455A (en) 1996-12-20 2001-04-27 Usf Filtration & Separations A method for cleaning porous membranes using a gas bubble system
US6641733B2 (en) 1998-09-25 2003-11-04 U. S. Filter Wastewater Group, Inc. Apparatus and method for cleaning membrane filtration modules
EP1011852B1 (de) 1998-07-13 2004-01-07 Bucher-Guyer AG Querstrom-Filtrationsanlage
US6217770B1 (en) 1998-08-14 2001-04-17 Atp International Apparatus and method for treatment of water
JP2002530188A (ja) * 1998-11-23 2002-09-17 ゼノン、エンバイロンメンタル、インコーポレーテッド 浸漬型薄膜を用いる水の濾過
US20040007527A1 (en) * 1998-11-23 2004-01-15 Zenon Environmental Inc. Membrane filtration device and process
AUPP985099A0 (en) 1999-04-20 1999-05-13 Usf Filtration And Separations Group Inc. Membrane filtration manifold system
US20010052494A1 (en) * 1999-10-25 2001-12-20 Pierre Cote Chemical cleaning backwash for normally immersed membranes
NL1012975C2 (nl) * 1999-09-03 2001-03-06 Stork Friesland Bv Werkwijze voor het verwijderen van organische stoffen (TOC), pesticiden, of andere stoffen uit een zoutoplossing.
US6589426B1 (en) * 1999-09-29 2003-07-08 Zenon Environmental Inc. Ultrafiltration and microfiltration module and system
US6342163B1 (en) 1999-11-12 2002-01-29 United States Filter Corporation Apparatus and method for sanitizing and cleaning a filter system
AUPQ680100A0 (en) 2000-04-10 2000-05-11 Usf Filtration And Separations Group Inc. Hollow fibre restraining system
GB0016846D0 (en) 2000-07-10 2000-08-30 United States Filter Corp Electrodeionisation Apparatus
US7147785B2 (en) 2000-09-28 2006-12-12 Usfilter Corporation Electrodeionization device and methods of use
AUPR064800A0 (en) 2000-10-09 2000-11-02 Usf Filtration And Separations Group Inc. Improved membrane filtration system
AUPR143400A0 (en) 2000-11-13 2000-12-07 Usf Filtration And Separations Group Inc. Modified membranes
AUPR421501A0 (en) 2001-04-04 2001-05-03 U.S. Filter Wastewater Group, Inc. Potting method
US6607647B2 (en) 2001-04-25 2003-08-19 United States Filter Corporation Electrodeionization apparatus with expanded conductive mesh electrode and method
US6649037B2 (en) 2001-05-29 2003-11-18 United States Filter Corporation Electrodeionization apparatus and method
AUPR584301A0 (en) 2001-06-20 2001-07-12 U.S. Filter Wastewater Group, Inc. Membrane polymer compositions
AUPR692401A0 (en) 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
AUPR774201A0 (en) 2001-09-18 2001-10-11 U.S. Filter Wastewater Group, Inc. High solids module
AU2002337876A1 (en) 2001-10-15 2003-04-28 United States Filter Corporation Apparatus for fluid purification and methods of manufacture and use thereof
EP1312408B1 (de) 2001-11-16 2006-07-19 US Filter Wastewater Group, Inc. Methode zur Reinigung von Membranen
US7247238B2 (en) 2002-02-12 2007-07-24 Siemens Water Technologies Corp. Poly(ethylene chlorotrifluoroethylene) membranes
KR20030091208A (ko) * 2002-05-25 2003-12-03 (주)멤브레인워터 십자흐름형 여과방식 및 막힘형 여과방식을 자동 제어하는중공사 분리막 수처리 시스템 및 공정
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
ATE542593T1 (de) 2002-10-10 2012-02-15 Siemens Industry Inc Membranfilter und rückspülverfahren dafür
US6863822B2 (en) * 2002-10-16 2005-03-08 Anthony Pipes Method and apparatus for parallel desalting
US7501061B2 (en) 2002-10-23 2009-03-10 Siemens Water Technologies Holding Corp. Production of water for injection using reverse osmosis
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
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
US8377279B2 (en) 2003-11-13 2013-02-19 Siemens Industry, Inc. Water treatment system and method
US7862700B2 (en) 2003-11-13 2011-01-04 Siemens Water Technologies Holding Corp. Water treatment system and method
US7083733B2 (en) 2003-11-13 2006-08-01 Usfilter Corporation Water treatment system and method
US7604725B2 (en) 2003-11-13 2009-10-20 Siemens Water Technologies Holding Corp. Water treatment system and method
US7563351B2 (en) 2003-11-13 2009-07-21 Siemens Water Technologies Holding Corp. Water treatment system and method
US20050103717A1 (en) 2003-11-13 2005-05-19 United States Filter Corporation Water treatment system and method
US7582198B2 (en) 2003-11-13 2009-09-01 Siemens Water Technologies Holding Corp. Water treatment system and method
US7846340B2 (en) 2003-11-13 2010-12-07 Siemens Water Technologies Corp. Water treatment system and method
WO2005046849A1 (en) 2003-11-14 2005-05-26 U.S. Filter Wastewater Group, Inc. Improved module cleaning method
US20050194315A1 (en) * 2004-02-27 2005-09-08 Adams Nicholas W.H. Membrane batch filtration process
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
JP2007535398A (ja) 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 有機物質を消化するためのメンブレンバイオリアクタおよび処理槽を含む濾過装置ならびに廃液処理方法
US7329358B2 (en) 2004-05-27 2008-02-12 Siemens Water Technologies Holding Corp. Water treatment process
CA2571498A1 (en) 2004-07-02 2006-01-12 U.S. Filter Wastewater Group, Inc. Gas transfer membrane
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
NZ588094A (en) 2004-08-20 2012-04-27 Siemens Water Tech Corp Potting head for hollow fibre filter module
AU2005282211B2 (en) 2004-09-07 2011-04-21 Evoqua Water Technologies Llc Reduction of backwash liquid waste
WO2006029456A1 (en) 2004-09-14 2006-03-23 Siemens Water Technologies Corp. Methods and apparatus for removing solids from a membrane module
WO2006029465A1 (en) 2004-09-15 2006-03-23 Siemens Water Technologies Corp. Continuously variable aeration
ES2365928T3 (es) 2004-12-03 2011-10-13 Siemens Industry, Inc. Post-tratamiento de membranas.
US20060118487A1 (en) * 2004-12-07 2006-06-08 Adams Nicholas W H Membrane filtration process
WO2006066350A1 (en) 2004-12-24 2006-06-29 Siemens Water Technologies Corp. Simple gas scouring method and apparatus
ATE549076T1 (de) 2004-12-24 2012-03-15 Siemens Industry Inc Reinigung in membranfiltrationssystemen
US7658828B2 (en) 2005-04-13 2010-02-09 Siemens Water Technologies Holding Corp. Regeneration of adsorption media within electrical purification apparatuses
US9675938B2 (en) 2005-04-29 2017-06-13 Evoqua Water Technologies Llc Chemical clean for membrane filter
EP1885655B1 (de) 2005-06-01 2014-12-17 Evoqua Water Technologies LLC Wasseraufbereitung durch intermittierende desinfektion
EP1904216A4 (de) * 2005-07-12 2008-11-19 Zenon Technology Partnership Prozesssteuerung für ein unterwassermembransystem
WO2007006104A1 (en) 2005-07-14 2007-01-18 Siemens Water Technologies Corp. Monopersulfate treatment of membranes
KR20080045231A (ko) 2005-08-22 2008-05-22 지멘스 워터 테크놀로지스 코포레이션 역세정을 최소화하도록 튜브 매니폴드를 사용하는 물여과용 조립체
WO2007044415A2 (en) 2005-10-05 2007-04-19 Siemens Water Technologies Corp. Method and apparatus for treating wastewater
US10213744B2 (en) 2006-06-13 2019-02-26 Evoqua Water Technologies Llc Method and system for water treatment
US8277627B2 (en) 2006-06-13 2012-10-02 Siemens Industry, Inc. Method and system for irrigation
US10252923B2 (en) 2006-06-13 2019-04-09 Evoqua Water Technologies Llc Method and system for water treatment
US20080067069A1 (en) 2006-06-22 2008-03-20 Siemens Water Technologies Corp. Low scale potential water treatment
US7820024B2 (en) 2006-06-23 2010-10-26 Siemens Water Technologies Corp. Electrically-driven separation apparatus
US7744760B2 (en) 2006-09-20 2010-06-29 Siemens Water Technologies Corp. Method and apparatus for desalination
US8293098B2 (en) 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
DE102007007894A1 (de) * 2007-02-14 2008-08-21 Technische Universität Berlin Verfahren zur Wiederherstellung optimaler Durchströmungseigenschaften von Membranfiltern
EP2129629A1 (de) 2007-04-02 2009-12-09 Siemens Water Technologies Corp. Verbesserte infiltrations-/flusssteuerung für einen membranbioreaktor
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
CA3058737C (en) 2007-05-29 2022-04-26 Fufang Zha Membrane cleaning with pulsed airlift pump
BRPI0819884A2 (pt) 2007-11-30 2016-05-10 Siemens Water Tech Corp método para tratamento de água salgada, sistema de tratamento de água e dispositivo de separação acionado eletricamente
EP2331242B1 (de) 2008-07-24 2018-09-05 Evoqua Water Technologies LLC Rahmensystem für membranfiltrationsmodule
JP2012500117A (ja) 2008-08-20 2012-01-05 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 膜濾過システムの逆洗エネルギ効率の改善
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
DE102009040142A1 (de) * 2009-09-04 2011-03-10 Krones Ag Verfahren und Anlage zum Filtrieren von Wasser, insbesondere Ultrafiltrationsverfahren
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
HUE058060T2 (hu) 2011-09-30 2022-07-28 Rohm & Haas Electronic Mat Szigetelõ szelep
EP2763776B1 (de) 2011-09-30 2021-07-28 Rohm & Haas Electronic Materials Singapore Pte. Ltd Verbessertes filtrationsmodul
KR101407403B1 (ko) * 2012-02-02 2014-06-17 한국과학기술연구원 막 증류용 분리막 모듈 장치
CN104394965B (zh) 2012-06-28 2016-11-23 伊沃夸水处理技术有限责任公司 灌封方法
EP2895257A1 (de) 2012-09-14 2015-07-22 Evoqua Water Technologies LLC Polymermischung für membranen
AU2013231145B2 (en) 2012-09-26 2017-08-17 Evoqua Water Technologies Llc Membrane potting methods
GB2520871B (en) 2012-09-26 2020-08-19 Evoqua Water Tech Llc Membrane securement device
AU2013101765A4 (en) 2012-09-27 2016-10-13 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
CN107847869B (zh) 2015-07-14 2021-09-10 罗门哈斯电子材料新加坡私人有限公司 用于过滤系统的通气装置
MX2020000854A (es) 2017-08-21 2020-07-13 Evoqua Water Tech Llc Tratamiento de agua salina para uso agricola y potable.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602116B2 (ja) * 1977-10-19 1985-01-19 株式会社日立製作所 洗濯廃水処理膜洗浄方法
JPS58163406A (ja) * 1982-03-23 1983-09-28 Nitto Electric Ind Co Ltd 液体の「ろ」過方法
US4482461A (en) * 1982-12-20 1984-11-13 French Systems, Inc. Backwash control for constant volume-pressure filtration system
US4552669A (en) * 1983-04-18 1985-11-12 Mott Metallurgical Corporation Pneumatic hydro-pulse filter system and method of operation
US4592848A (en) * 1984-12-11 1986-06-03 Pabst Richard E Flow through filter with backflush clearing capability
FR2586202B1 (fr) * 1985-08-13 1989-11-17 Meridional Oenologie Centre Procedes et dispositifs de decolmatage en marche d'un filtre tangentiel
US4657040A (en) * 1985-11-25 1987-04-14 Hr Textron Inc. Bypass reverse flow valve
JPH01501046A (ja) * 1986-09-04 1989-04-13 メムテック・リミテッド 中空繊維フィルターの洗浄方法
FR2609645B1 (fr) * 1987-01-21 1989-03-24 Alsthom Cgee Installation de filtration modulaire automatique
US4844804A (en) * 1988-03-18 1989-07-04 Separation Dynamics, Inc. Fluid decontamination system
GB8807825D0 (en) * 1988-03-31 1988-05-05 Romicon Inc Multiple membrane filtration systems
WO1989011899A1 (en) * 1988-06-08 1989-12-14 Invitron Corporation Tandem hollow fiber cell culture product harvest system
JPH02126923A (ja) * 1988-11-02 1990-05-15 Toshiba Corp 廃液ろ過装置

Also Published As

Publication number Publication date
JPH05111623A (ja) 1993-05-07
FR2666245A1 (fr) 1992-03-06
FR2666245B1 (fr) 1992-10-23
EP0473486B1 (de) 1994-06-08
CA2049819A1 (fr) 1992-03-01
DE473486T1 (de) 1992-06-11
US5066402A (en) 1991-11-19
DE69102372T2 (de) 1994-09-29
EP0473486A1 (de) 1992-03-04
ATE106770T1 (de) 1994-06-15
ES2029784T3 (es) 1994-10-16
ES2029784T1 (es) 1992-10-01
JP2860191B2 (ja) 1999-02-24
CA2049819C (fr) 1999-02-02

Similar Documents

Publication Publication Date Title
DE69102372D1 (de) Verfahren zum Steuern der Betriebsarten einer automatischen Wasserfiltervorrichtung mit rohrförmigen Membranen.
GB2249970B (en) A method of backwashing tubular filter membranes, and apparatus for implementing the method
DE60116356D1 (de) Membranfiltrationssystem
DE69115532D1 (de) Gasdurchlässiges spiralförmig gewickeltes Membranmodul, Vorrichtung und Verfahren zu seiner Verwendung
ES2116251T1 (es) Sistema de filtracion de membranas enrolladas.
DE3882519T2 (de) Methode zur Regelung des Wasserentzuges durch Ultrafiltration und Regelungsvorrichtung zur Regelung als Wasserentzugs durch Ultrafiltration während der Hämodialyse.
HUP0000070A2 (hu) Eljárás és berendezés bemerített membránokat tartalmazó szűrőlétesítmények tisztítására
FR2668077B1 (fr) Membrane d'osmose inverse ou de nanofiltration et son procede de fabrication.
CA2281889A1 (en) Portable reverse osmosis unit for producing drinking water
DE3481818D1 (de) Verfahren zur herstellung von mikrofiltrations-, ultrafiltrations- oder umkehrosmose-elementen.
DE69231483D1 (de) Grenzflächensynthetisierte Umkehrosmosemembrane und Verfahren zu ihrer Herstellung
DE69212046T3 (de) Dialyse Modul mit selektiv-durchlässiger Polysulfon-Hohlfasermembran und Verfahren zur Herstellung
DE69229071T2 (de) Verfahren und verbesserte Vorrichtung zum Filtrieren mit tangentiellem, instationärem Flüssigkeitsstrom
CA2026947A1 (en) Turbidity monitoring apparatus and methods
AR245012A1 (es) Un aparato mejorado para el ultra o microfiltrado de liquidos, especialmente agua.
NL192669B (nl) Membraanfiltermodule voor het filtreren van een fluïdum volgens de crossflow-methode.
DE59108589D1 (de) Vorrichtung und Gehäuse zum Filtern und Trennen von Strömungsmedien
ATE186225T1 (de) Filterpresse mit elastischer membran und filtrationsverfahren zum gebrauch einer solchen filterpresse
FR2679465B1 (fr) Procede et dispositif de decolmatage de membranes de filtration.
DE59102737D1 (de) Verfahren zum spülen der filtrations-module einer anlage zur klärung von flüssigkeiten.
DE69013483D1 (de) Membransystem und Verfahren zum Konzentrieren von organischen Sauerstoffverbindungen.
BE886192A (fr) Element a membranes pour osmose inverse enroulees en spirale
JP2001054789A (ja) 内圧式中空糸膜の逆洗浄方法
CN208632164U (zh) 一种纯水机正反冲洗膜系统
JPH05184883A (ja) 膜分離エレメント

Legal Events

Date Code Title Description
8364 No opposition during term of opposition