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WO1994029007A1 - Procede de nettoyage des modules de filtration d'une installation de decantation de liquides - Google Patents

Procede de nettoyage des modules de filtration d'une installation de decantation de liquides Download PDF

Info

Publication number
WO1994029007A1
WO1994029007A1 PCT/CH1994/000103 CH9400103W WO9429007A1 WO 1994029007 A1 WO1994029007 A1 WO 1994029007A1 CH 9400103 W CH9400103 W CH 9400103W WO 9429007 A1 WO9429007 A1 WO 9429007A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
filtration
modules
flow direction
module
Prior art date
Application number
PCT/CH1994/000103
Other languages
German (de)
English (en)
Inventor
Eduard Hartmann
Original Assignee
Bucher-Guyer Ag Maschinenfabrik
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 Bucher-Guyer Ag Maschinenfabrik filed Critical Bucher-Guyer Ag Maschinenfabrik
Priority to AU67195/94A priority Critical patent/AU6719594A/en
Priority to PL94307394A priority patent/PL307394A1/xx
Priority to EP94915502A priority patent/EP0663852A1/fr
Publication of WO1994029007A1 publication Critical patent/WO1994029007A1/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
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • 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
    • B01D61/145—Ultrafiltration
    • 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
    • B01D61/147—Microfiltration
    • 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
    • B01D2321/20—By influencing the flow
    • B01D2321/2083—By reversing the flow

Definitions

  • the invention relates to a method for cleaning the filtration modules of a system for clarifying liquids, in particular using micro- or ultrafiltration.
  • the invention offers advantages especially when cleaning after the filtration of products with a high fiber content, such as. B. raw juices from fruit, vegetables or vegetable products.
  • the invention is therefore based on the object of providing a cleaning method for the systems mentioned at the outset which ensures a trouble-free workflow by periodically removing the fiber deposits.
  • this object is achieved in that, in the case of periodic cleaning, the cleaning medium, based on the filtration modules
  • Filtration operation flows in the opposite direction.
  • the fiber accumulations located at the entrance of the modules are easily detached and washed out of the modules. Due to the periodic cleaning, they are peeling off
  • Fiber accumulations are so small that they cannot clog the modules.
  • the figure shows schematically a semi-continuous Querstro filtration device, preferably comprising a micro or ultrafiltration device.
  • the method according to the invention can also be used with a or multi-stage continuously operated system can be used.
  • the product to be clarified is fed to a batch tank 3 via a line 1 and a prefilter 2.
  • a circulation pump 8 conveys the product to be clarified from the batch tank 3 into a retentate circuit 4 in which a filtration module 13 is arranged. After exiting the filtration module 13, the retentate flows back into the batch tank 3 via a line 17 and a filter 18. The per eat is discharged via a line 14.
  • valves 9 to 12 are closed and valves 9 and 11 are opened.
  • the valves can be operated mechanically, electrically, hydraulically or pneumatically.
  • a control 16 is provided for controlling the valves, but versions with manual operation are also possible.
  • the cleaning process can be initiated either periodically or as a function of the contamination state determined by a sensor 15.
  • the flow direction is switched before cleaning after the end of the filtration cycle and a subsequent product displacement.
  • water is pumped from an inlet line 7 into the retentate circuit 4 by closing a valve 5 and opening a valve 6 by the circulation pump 8. That after the end of the filtration cycle in the pipe system remaining retentate is displaced into batch tank 3.
  • the flow direction for the subsequent filtration cycle can be changed back to that of the previous filtration cycle, or it can be maintained. Maintaining the flow direction after cleaning has the advantage that the changing flow direction in the filtration cycles results in a more even load on the modules (longer service life).

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Le procédé de nettoyage des modules de filtration (11) d'un dispositif de filtration à courant transversal est exécuté dans une installation servant à la décantation de liquides, en particulier ceux contenant une proportion élevée de fibres. L'accumulation continue de fibres pose des problèmes en pareil cas, principalement à l'entrée des modules de filtration (13) placés aux extrémités avant des canaux, accumulation qui peut conduire à des obturations. Pour détruire les accumulations de fibres, on inverse, pendant le nettoyage, le sens de l'écoulement dans le module (13) par rapport au cycle de filtration précédent. Cette action est opérée par l'enclenchement des vannes (9 à 12). L'inversion du sens d'écoulement pendant le nettoyage permet de dissoudre facilement les accumulations de fibres demeurées peu importantes et de les évacuer à l'extérieur des modules. On peut ainsi éviter l'obturation de ces modules.
PCT/CH1994/000103 1993-06-11 1994-06-02 Procede de nettoyage des modules de filtration d'une installation de decantation de liquides WO1994029007A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU67195/94A AU6719594A (en) 1993-06-11 1994-06-02 Process for cleaning the filter modules of a plant for purifying liquids
PL94307394A PL307394A1 (en) 1993-06-11 1994-06-02 Method of cleaning filtering modules of an apparatus for clarification of liquids
EP94915502A EP0663852A1 (fr) 1993-06-11 1994-06-02 Procede de nettoyage des modules de filtration d'une installation de decantation de liquides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH175893 1993-06-11
CH1758/93-4 1993-06-11

Publications (1)

Publication Number Publication Date
WO1994029007A1 true WO1994029007A1 (fr) 1994-12-22

Family

ID=4217884

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1994/000103 WO1994029007A1 (fr) 1993-06-11 1994-06-02 Procede de nettoyage des modules de filtration d'une installation de decantation de liquides

Country Status (8)

Country Link
EP (1) EP0663852A1 (fr)
AU (1) AU6719594A (fr)
CA (1) CA2141846A1 (fr)
CZ (1) CZ35195A3 (fr)
HU (1) HUT71041A (fr)
NZ (1) NZ266122A (fr)
PL (1) PL307394A1 (fr)
WO (1) WO1994029007A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998022204A1 (fr) * 1996-11-21 1998-05-28 Memtec America Corporation Filtration par membrane microporeuse et technique de lavage a contre-courant
FR2817485A1 (fr) * 2000-12-06 2002-06-07 Commissariat Energie Atomique Decolmatage d'un filtre a fibres creuses fonctionnant en mode frontal
EP1691915A4 (fr) * 2003-12-07 2007-01-24 Univ Ben Gurion Procede et systeme pour augmenter la recuperation et empecher l'encrassement de precipitation dans des processus a membrane soumise a pression
WO2007139374A1 (fr) * 2006-05-31 2007-12-06 X-Flow B.V. Appareil doté d'un bioréacteur et d'un module de filtration sur membrane pour le traitement d'un fluide entrant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818437A1 (de) * 1988-05-31 1989-12-07 Joseph Dipl Ing Brokhage Filterbatterie
EP0355631A1 (fr) * 1988-08-19 1990-02-28 AG für industrielle Elektronik AGIE Losone bei Locarno Dispositif pour le traitement du liquide d'usinage d'une machine d'électro-érosion
EP0355632A1 (fr) * 1988-08-19 1990-02-28 AG für industrielle Elektronik AGIE Losone bei Locarno Procédé pour le traitement du liquide d'usinage d'une machine d'électro-érosion
WO1992000797A1 (fr) * 1990-07-06 1992-01-23 Bucher-Guyer Ag Maschinenfabrik Procede de rinçage des modules de filtration d'une installation d'epuration de liquides

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818437A1 (de) * 1988-05-31 1989-12-07 Joseph Dipl Ing Brokhage Filterbatterie
EP0355631A1 (fr) * 1988-08-19 1990-02-28 AG für industrielle Elektronik AGIE Losone bei Locarno Dispositif pour le traitement du liquide d'usinage d'une machine d'électro-érosion
EP0355632A1 (fr) * 1988-08-19 1990-02-28 AG für industrielle Elektronik AGIE Losone bei Locarno Procédé pour le traitement du liquide d'usinage d'une machine d'électro-érosion
WO1992000797A1 (fr) * 1990-07-06 1992-01-23 Bucher-Guyer Ag Maschinenfabrik Procede de rinçage des modules de filtration d'une installation d'epuration de liquides

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998022204A1 (fr) * 1996-11-21 1998-05-28 Memtec America Corporation Filtration par membrane microporeuse et technique de lavage a contre-courant
FR2817485A1 (fr) * 2000-12-06 2002-06-07 Commissariat Energie Atomique Decolmatage d'un filtre a fibres creuses fonctionnant en mode frontal
WO2002045829A1 (fr) * 2000-12-06 2002-06-13 Commissariat A L'energie Atomique Decolmatage d'un filtre a fibres creuses fonctionnant en mode frontal
EP1691915A4 (fr) * 2003-12-07 2007-01-24 Univ Ben Gurion Procede et systeme pour augmenter la recuperation et empecher l'encrassement de precipitation dans des processus a membrane soumise a pression
US8137539B2 (en) 2003-12-07 2012-03-20 Ben-Gurion University Of The Negev Research And Development Authority Method and system for increasing recovery and preventing precipitation fouling in pressure-driven membrane processes
US9649598B2 (en) 2003-12-07 2017-05-16 Ben-Gurion University Of The Negev Research And Development Authority Method and system for increasing recovery and preventing precipitation fouling in pressure-driven membrane processes
WO2007139374A1 (fr) * 2006-05-31 2007-12-06 X-Flow B.V. Appareil doté d'un bioréacteur et d'un module de filtration sur membrane pour le traitement d'un fluide entrant
AU2007268414B2 (en) * 2006-05-31 2011-07-14 X-Flow B.V. Apparatus having a bioreactor and membrane filtration module for treatment of an incoming fluid
KR101233775B1 (ko) 2006-05-31 2013-02-15 엑스-플로우 비.브이. 유입 액체를 처리하기 위한 생물반응조 및 분리막 여과 모듈을 포함하는 장치
US10266439B2 (en) 2006-05-31 2019-04-23 X-Flow B.V. Method for cleaning membranes and an inlet side of a membrane filtration module of an apparatus having a bioreactor and membrane filtration module for treatment of an incoming fluid

Also Published As

Publication number Publication date
NZ266122A (en) 1996-12-20
HUT71041A (en) 1995-11-28
EP0663852A1 (fr) 1995-07-26
PL307394A1 (en) 1995-05-15
CA2141846A1 (fr) 1994-12-22
HU9500422D0 (en) 1995-04-28
CZ35195A3 (en) 1995-09-13
AU6719594A (en) 1995-01-03

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