WO1997047375A1 - Systeme de filtre membranaire - Google Patents

Systeme de filtre membranaire Download PDF

Info

Publication number
WO1997047375A1
WO1997047375A1 PCT/NL1997/000326 NL9700326W WO9747375A1 WO 1997047375 A1 WO1997047375 A1 WO 1997047375A1 NL 9700326 W NL9700326 W NL 9700326W WO 9747375 A1 WO9747375 A1 WO 9747375A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
pressure vessel
flush
connections
discharging
Prior art date
Application number
PCT/NL1997/000326
Other languages
English (en)
Inventor
Paul Peter Johannes Maria Van Oort
Original Assignee
Usf Rossmark Waterbehandeling B.V.
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 Usf Rossmark Waterbehandeling B.V. filed Critical Usf Rossmark Waterbehandeling B.V.
Publication of WO1997047375A1 publication Critical patent/WO1997047375A1/fr

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
    • 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
    • B01D63/04—Hollow fibre modules comprising multiple hollow fibre assemblies
    • B01D63/043—Hollow fibre modules comprising multiple hollow fibre assemblies with separate tube sheets
    • 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
    • B01D63/10—Spiral-wound membrane modules
    • B01D63/12—Spiral-wound membrane modules comprising multiple spiral-wound assemblies
    • 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
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/10—Specific supply elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/12—Specific discharge elements
    • 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
    • B01D2321/16—Use of chemical agents
    • B01D2321/168—Use of other chemical agents

Definitions

  • the present invention relates to a membrane filtration system for filtering a liquid containing impurities using microfiltration or ultrafiltration membranes, comprising a pressure vessel containing two or more membrane filter elements, connected on the filtrate side by means of a connector, and which is closed off at both ends with an end plate, wherein in one or both end plates connections are arranged for discharging filtrate or feeding back- flush and/or cleaning and/or disinfecting liquid, and wherein at both ends of the pressure vessel, either in the end plates or in the side wall of the pressure vessel connections are arranged for feeding the liquid to be filtered or discharging the back-flush and/or cleaning and/or disinfecting liquid and impurities.
  • Ultrafiltration and microfiltration are methods in general use for separating non-dissolved materials.
  • use is made of membrane filters.
  • the transport of the liquid through the membrane takes place under the influence of a pressure difference.
  • these membranes are spiral-wound membranes, tubular or capillary membranes, flat plates, etc.
  • microfiltration is used for membranes with a pore size of about 0.1 to about 10 ⁇ and the term ultrafiltration is used for a pore size of about 1 nm to about 100 nm.
  • cross-flow system during filtration the liquid to be filtered is conveyed at a relatively high velocity along the membrane, a part of the liquid passing the membrane as filtrate.
  • the separated impurities are, for the greater part, discharged, as a result of which the formation of a layer of impurities on the membrane is controlled. This can be assisted by periodical back- flushing.
  • the system requires a high velocity along the membrane of the liquid to be filtered. As a result additional accompanying provisions are necessary, such as larger tubes and pumps with a higher capacity, which makes this system expensive and complex.
  • a dead-end system is usually realized in the form of a pressure vessel that contains several membrane filter elements, spaced in series one behind the other, the liquid to be purified being supplied from one or both ends through the connections located at the outer ends of the pressure vessel.
  • this problem is solved in that one or more additional connections are arranged in the side wall of the pressure vessel between the connec ⁇ tions at the outer ends of the pressure vessel.
  • the invention therefore provides a membrane filter system as described above, characterized in that in the side wall of the pressure vessel between the connections at the outer ends of the pressure vessel one or more additional connections are arranged for feeding the liquid to be filtered or discharging the back-flush and/or cleaning and/or disinfecting liquid and impurities.
  • connection(s) for feeding the liquid to be filtered or discharging the back-flush liquid are arranged at a level with a connector between the membrane filter elements.
  • a suchlike membrane filter system generally comprises a cylindrical pressure vessel.
  • the pressure vessel has a length of about 2 to about 10 metres and a diameter of about 4 to about 12 inches.
  • the membrane filter elements usually have a length of about 1 metre.
  • the invention also provides a pressure vessel suitable for membrane filtration, in which at the outer ends of the pressure vessel connections for discharging the filtrate or feeding the back-flush and/or cleaning and/or disinfec ⁇ ting liquid and connections for feeding the liquid to be filtered or discharging the back-flush and/or cleaning and/or disinfecting liquid and impurities are arranged, characterized in that one or more additional connections for feeding the liquid to be filtered or discharging the back-flush and/or cleaning and/or disinfecting liquid are arranged.
  • membrane filter elements such as, for example, spiral-wound membranes, capillary or tubular membranes.
  • These membranes contain a central tube which has openings for discharging the filtrate.
  • the liquid to be cleaned is fed axially to the filter.
  • the filtrate moves through the membrane, and subsequently to the discharge tube.
  • the membrane filter elements are arranged in the pressure vessel, such that the fed liquid flows primarily through one membrane filter element to the adjacent membrane filter element.
  • connections for feeding the liquid to be filtered which are to be placed on the outer ends of the pressure vessel, in the end plate of the pressure vessel. Because of the filtrate connection already present here or for a better availability, they can also be placed in the side wall on the outer end of the pressure vessel. However, this does not change the flow through the pressure vessel .
  • the filtrate can be discharged on one side as well as on both sides of the pressure vessel.
  • the membrane filter system according to the invention can be used for filtering various kinds of liquids. Examples of this are surface water, process water, wash water, cooling water, salt solutions, etc.
  • the membrane filter system according to the invention can be used specifically for purifying slightly contaminated liquids.
  • the particles filtered out of this are, among other things, bacteria, solid substances, floating par ⁇ ticles, colloids, etc., depending on the applied pore size of the membrane.
  • figure 1 represents a membrane filter system according to the state of the art :
  • figure 2 represents a membrane filter system according to the present invention
  • figure 3 shows the flow through the membrane filter system according to the state of the art
  • figure 4 shows the flow through the membrane filter system with the filter method according to the invention.
  • FIG. 1 shows an embodiment of a membrane filter system according to the state of the art .
  • a number of membrane filter elements (2) are incorporated in a pressure vessel (1) .
  • On the filtrate side the membrane filter elements are connected to each other via a connector (6) .
  • the pressure vessel is closed off on both sides by means of an end plate (3) .
  • In the side wall the usual connections (4) are arranged for feeding the liquid to be purified or for discharging the back-flush liquid and impurities.
  • connections (5) are arranged for dischar- ging the filtrate or feeding the back-flush and/or the cleaning and/or the disinfecting liquid.
  • FIG. 2 shows a membrane filter system according to the invention. This system corresponds to that of figure 1 with the exception that in the side wall of the pressure vessel (1) connections (7) are arranged for feeding the liquid to be filtered or discharging the back-flush li ⁇ quid.
  • Figure 3 shows the flows occurring in a membrane filter method that makes use of a membrane filter system accor ⁇ ding to figure 1.
  • the liquid to be purified is supplied via the connections (4) .
  • the liquid to be purified flows axially into the membrane filter element and subsequently flows axially through the membrane filter element to adjacent elements.
  • the filtrate flows through the membrane and subsequently to the filtrate discharge tube.
  • the filtrate leaves the pressure vessel via the connections (5) .
  • the impurities remain behind in the membrane filter elements (2) .
  • the pressure vessel is periodically back-flushed to remove the accumulated impurities.
  • the flow direction is then reversed.
  • the back-flush liquid is fed via the connections (5) in the end plate (3) .
  • the back-flush liquid flows through the membrane and subsequently axially through the membrane filter elements and moves the impurities which were left behind through the membrane filter elements (2) to the outer ends of the pressure vessel.
  • the back-flush liquid containing the impurities leaves the pressure vessel via the connections (4) .
  • Figure 4 shows the flows which occur with a membrane filter method according to the present invention.
  • the filtration takes place in the same way as in figure 3, except that the liquid to be filtered is also fed via the connections (7) .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

La présente invention concerne un système de filtration membranaire, destiné à filtrer un liquide contenant des impuretés au moyen de membranes de microfiltration ou d'ultrafiltration. Ce système comprend une cuve sous pression (1) contenant au moins deux éléments de filtre membranaire (2) reliés du côté filtrat à l'aide d'un tube de raccord (6). Cette cuve, fermée sur ses deux extrémités à l'aide d'une plaque d'extrémité (3), est caractérisée en ce que, sur l'une et/ou l'autre de ces plaques d'extrémité (3), on a placé des raccordements (5) servant à décharger le filtrat ou à fournir le liquide de chasse par l'arrière et/ou de nettoyage et/ou de désinfection, en ce qu'au niveau des deux extrémités de la cuve sous pression (1), soit dans les plaques d'extrémité (3), soit dans la paroi latérale de celle-ci, on a placé des raccordements (4) servant à l'alimentation en liquide à filtrer ou à la décharge du liquide de chasse par l'arrière et/ou de nettoyage et/ou de désinfection ainsi que des impuretés, et en ce que dans la paroi latérale de la cuve sous pression (1), entre les raccordements situés au niveau des extrémités extérieures de la cuve, on a placé un ou plusieurs raccordements supplémentaires (7) destinés à fournir le liquide à filtrer ou à décharger le liquide de chasse par l'arrière et/ou de nettoyage et/ou de désinfection, ainsi que les impuretés.
PCT/NL1997/000326 1996-06-10 1997-06-10 Systeme de filtre membranaire WO1997047375A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1003309A NL1003309C1 (nl) 1996-06-10 1996-06-10 Membraanfiltersysteem en drukvat geschikt voor membraanfiltratie.
NL1003309 1996-06-10

Publications (1)

Publication Number Publication Date
WO1997047375A1 true WO1997047375A1 (fr) 1997-12-18

Family

ID=19762993

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1997/000326 WO1997047375A1 (fr) 1996-06-10 1997-06-10 Systeme de filtre membranaire

Country Status (2)

Country Link
NL (1) NL1003309C1 (fr)
WO (1) WO1997047375A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0862943A1 (fr) * 1997-03-04 1998-09-09 Stork Friesland B.V. Module de filtration à membranes et système de filtration comprenant de tels modules
EP0868941A1 (fr) * 1997-03-04 1998-10-07 Stork Friesland B.V. Module de filtration à membranes et système de filtration à membranes comprenant de tels modules
WO2000000129A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquide pour des vitesses d'ecoulement elevees entre deux regions d'entree
WO2000000127A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquides a flux eleve comprenant deux regions de permeabilites differentes
WO2000000131A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquide possedant des regions de materiau en vrac a permeabilite elevee et des regions d'entree a pression de seuil elevee
WO2000000701A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquides a debit volumique eleve entre une zone d'orifice et une ouverture
WO2000000138A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Elements de transport de liquides a debits volumiques eleves s'opposant a la force de gravite
US6579457B1 (en) 1999-06-29 2003-06-17 The Procter & Gamble Company Liquid transport member for high flux rates between a port region and an opening
NL1019565C2 (nl) * 2001-12-14 2003-06-17 Norit Membraan Tech Bv Membraanfilterbehuizing en werkwijze welke deze toepast.
US6673057B1 (en) 1998-06-29 2004-01-06 The Procter & Gamble Company High flux liquid transport members comprising two different permeability regions
US6811842B1 (en) 1999-06-29 2004-11-02 The Procter & Gamble Company Liquid transport member for high flux rates between two port regions
WO2008096108A3 (fr) * 2007-02-06 2009-05-22 H2Oil & Gas Ltd Système de filtration
US20110049034A1 (en) * 2008-05-09 2011-03-03 H2Oil & Gas Ltd Modular cross-flow filtration system
WO2018015223A1 (fr) * 2016-07-21 2018-01-25 Bp Exploration Operating Company Limited Procédé de filtration et de lavage à contre-courant à l'aide d'éléments à membrane à fibres creuses
EP2759331B1 (fr) * 2011-09-22 2020-09-16 Zhang, Huichun Système de filtration sur membrane hybride par infiltration sous pression vertical

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1005431C2 (nl) * 1997-03-04 1998-09-07 Stork Friesland Bv Membraanfiltratiemodule en dergelijke modules omvattend membraanfiltratiesysteem.
NL1008381C2 (nl) * 1998-02-20 1999-08-24 X Flow Bv Filterinrichting.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503515A (en) * 1968-10-03 1970-03-31 Du Pont Permeation separatory apparatus
FR2386326A1 (fr) * 1977-04-08 1978-11-03 Dow Chemical Co Dispositif de separation a fibres creuses
EP0055839A1 (fr) * 1980-12-18 1982-07-14 Toyo Boseki Kabushiki Kaisha Appareil de séparation de fluides du type membrane de fibres creuses
US4758341A (en) * 1987-04-20 1988-07-19 The Dow Chemical Company Membrane separation device
EP0307047A1 (fr) * 1987-09-09 1989-03-15 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Module à membrane pour l'hyperfiltration ou l'ultrafiltration de liquides contaminants

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503515A (en) * 1968-10-03 1970-03-31 Du Pont Permeation separatory apparatus
FR2386326A1 (fr) * 1977-04-08 1978-11-03 Dow Chemical Co Dispositif de separation a fibres creuses
EP0055839A1 (fr) * 1980-12-18 1982-07-14 Toyo Boseki Kabushiki Kaisha Appareil de séparation de fluides du type membrane de fibres creuses
US4758341A (en) * 1987-04-20 1988-07-19 The Dow Chemical Company Membrane separation device
EP0307047A1 (fr) * 1987-09-09 1989-03-15 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Module à membrane pour l'hyperfiltration ou l'ultrafiltration de liquides contaminants

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0862943A1 (fr) * 1997-03-04 1998-09-09 Stork Friesland B.V. Module de filtration à membranes et système de filtration comprenant de tels modules
EP0868941A1 (fr) * 1997-03-04 1998-10-07 Stork Friesland B.V. Module de filtration à membranes et système de filtration à membranes comprenant de tels modules
US6673057B1 (en) 1998-06-29 2004-01-06 The Procter & Gamble Company High flux liquid transport members comprising two different permeability regions
WO2000000131A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquide possedant des regions de materiau en vrac a permeabilite elevee et des regions d'entree a pression de seuil elevee
WO2000000129A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquide pour des vitesses d'ecoulement elevees entre deux regions d'entree
WO2000000136A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquides pourvu de zones centrales a permeabilite elevee et de zones d'orifice a pression de seuil elevee
WO2000000146A2 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Elements servant a transporter des flux de liquide importants et comprenant deux zones de permeabilite differente
WO2000000701A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquides a debit volumique eleve entre une zone d'orifice et une ouverture
WO2000000138A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Elements de transport de liquides a debits volumiques eleves s'opposant a la force de gravite
WO2000000127A1 (fr) 1998-06-29 2000-01-06 The Procter & Gamble Company Element de transport de liquides a flux eleve comprenant deux regions de permeabilites differentes
US6811842B1 (en) 1999-06-29 2004-11-02 The Procter & Gamble Company Liquid transport member for high flux rates between two port regions
US6579457B1 (en) 1999-06-29 2003-06-17 The Procter & Gamble Company Liquid transport member for high flux rates between a port region and an opening
AU2002353656B2 (en) * 2001-12-14 2008-02-14 Norit Membraan Technologie B.V. Membrane filter housing and method of using the same
WO2003051497A1 (fr) * 2001-12-14 2003-06-26 Norit Membraan Technologie B.V. Logement a membranes filtrantes et son utilisation
NL1019565C2 (nl) * 2001-12-14 2003-06-17 Norit Membraan Tech Bv Membraanfilterbehuizing en werkwijze welke deze toepast.
US8795527B2 (en) 2007-02-06 2014-08-05 H2Oil & Gas Ltd Filtration system
WO2008096108A3 (fr) * 2007-02-06 2009-05-22 H2Oil & Gas Ltd Système de filtration
US20110049034A1 (en) * 2008-05-09 2011-03-03 H2Oil & Gas Ltd Modular cross-flow filtration system
EP2759331B1 (fr) * 2011-09-22 2020-09-16 Zhang, Huichun Système de filtration sur membrane hybride par infiltration sous pression vertical
WO2018015223A1 (fr) * 2016-07-21 2018-01-25 Bp Exploration Operating Company Limited Procédé de filtration et de lavage à contre-courant à l'aide d'éléments à membrane à fibres creuses
CN109641178A (zh) * 2016-07-21 2019-04-16 Bp探索操作有限公司 使用中空纤维膜元件进行过滤和反冲洗的方法
US20190169050A1 (en) * 2016-07-21 2019-06-06 Bp Exploration Operating Company Limited Method of Filtering Water
EA036835B1 (ru) * 2016-07-21 2020-12-24 БиПи ЭКСПЛОРЕЙШН ОПЕРЕЙТИНГ КАМПЭНИ ЛИМИТЕД Способ фильтрации воды
US12043557B2 (en) 2016-07-21 2024-07-23 Bp Exploration Operating Company Limited Method of filtering water

Also Published As

Publication number Publication date
NL1003309C1 (nl) 1996-07-24

Similar Documents

Publication Publication Date Title
US4986918A (en) Membrane separation system and method of operation
US5132015A (en) Flow control for ultra filtration systems
EP3487607B1 (fr) Procédé de filtration et de lavage à contre-courant à l'aide d'éléments à membrane à fibres creuses
EP0966319B1 (fr) Unite portative a osmose inverse pour la production d'eau potable
WO1997047375A1 (fr) Systeme de filtre membranaire
EP0213157B1 (fr) Concentration de solides dans une suspension
US8795527B2 (en) Filtration system
US20110192794A1 (en) Advanced filtration device for water and wastewater treatment
EP0079040A2 (fr) Procédé et appareil pour augmenter les débits durant la filtration à courants croisés de liquides chargés de solides en suspension
NL1017681C2 (nl) Filtersysteem.
JPH11244852A (ja) 淡水化装置及び該淡水化装置で用いられるろ過装置の逆洗方法
JPH06304559A (ja) 水処理方法および水処理装置
WO2002044091A2 (fr) Procede de purification d'eau par filtration a l'aide d'une membrane de microfiltration ou d'ultrafiltration
EP0121785A2 (fr) Procédé et appareil pour augmenter la vitesse de passage dans les installations de filtration à courants croisés
WO2024145515A1 (fr) Pré-filtre intégré pour système de membrane uf/mf
JPH0824590A (ja) 高濃度有機液の濾過方法
JPH07185210A (ja) 濾過装置
JPH07108144A (ja) 清澄ろ過装置
JP5809914B2 (ja) 水処理装置及び水処理方法
Wilf et al. Reclamation of sand filter backwash effluent using HYDRAcap LD capillary UF membrane technology
WO2006020780A2 (fr) Systeme et procede de filtration d'elements groupes
Futselaar et al. System design for large-scale ultrafiltration applications
WO2017013200A1 (fr) Appareil de filtration

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 98501479

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA