WO1994029007A1 - Process for cleaning the filter modules of a plant for purifying liquids - Google Patents
Process for cleaning the filter modules of a plant for purifying liquids Download PDFInfo
- 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
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).
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94915502A EP0663852A1 (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 |
AU67195/94A AU6719594A (en) | 1993-06-11 | 1994-06-02 | Process for cleaning the filter modules of a plant for purifying liquids |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1758/93-4 | 1993-06-11 | ||
CH175893 | 1993-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994029007A1 true WO1994029007A1 (en) | 1994-12-22 |
Family
ID=4217884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1994/000103 WO1994029007A1 (en) | 1993-06-11 | 1994-06-02 | Process for cleaning the filter modules of a plant for purifying liquids |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0663852A1 (en) |
AU (1) | AU6719594A (en) |
CA (1) | CA2141846A1 (en) |
CZ (1) | CZ35195A3 (en) |
HU (1) | HUT71041A (en) |
NZ (1) | NZ266122A (en) |
PL (1) | PL307394A1 (en) |
WO (1) | WO1994029007A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998022204A1 (en) * | 1996-11-21 | 1998-05-28 | Memtec America Corporation | Microporous membrane filtration and backwashing process |
FR2817485A1 (en) * | 2000-12-06 | 2002-06-07 | Commissariat Energie Atomique | DECOLMATION OF A HOLLOW FIBER FILTER OPERATING IN FRONTAL MODE |
EP1691915A2 (en) * | 2003-12-07 | 2006-08-23 | 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 (en) * | 2006-05-31 | 2007-12-06 | X-Flow B.V. | Apparatus having a bioreactor and membrane filtration module for treatment of an incoming fluid |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3818437A1 (en) * | 1988-05-31 | 1989-12-07 | Joseph Dipl Ing Brokhage | Filter battery |
EP0355632A1 (en) * | 1988-08-19 | 1990-02-28 | AG für industrielle Elektronik AGIE Losone bei Locarno | Method for the treatment of the machining liquid of an electroerosion machine |
EP0355631A1 (en) * | 1988-08-19 | 1990-02-28 | AG für industrielle Elektronik AGIE Losone bei Locarno | Device for the treatment of the machining liquid of an electroerosion machine |
WO1992000797A1 (en) * | 1990-07-06 | 1992-01-23 | Bucher-Guyer Ag Maschinenfabrik | Process for rinsing the filter module of a device for purifying liquids |
-
1994
- 1994-06-02 HU HU9500422A patent/HUT71041A/en unknown
- 1994-06-02 PL PL94307394A patent/PL307394A1/en unknown
- 1994-06-02 AU AU67195/94A patent/AU6719594A/en not_active Abandoned
- 1994-06-02 CA CA002141846A patent/CA2141846A1/en not_active Abandoned
- 1994-06-02 CZ CZ95351A patent/CZ35195A3/en unknown
- 1994-06-02 EP EP94915502A patent/EP0663852A1/en not_active Withdrawn
- 1994-06-02 WO PCT/CH1994/000103 patent/WO1994029007A1/en not_active Application Discontinuation
- 1994-06-02 NZ NZ26612294A patent/NZ266122A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3818437A1 (en) * | 1988-05-31 | 1989-12-07 | Joseph Dipl Ing Brokhage | Filter battery |
EP0355632A1 (en) * | 1988-08-19 | 1990-02-28 | AG für industrielle Elektronik AGIE Losone bei Locarno | Method for the treatment of the machining liquid of an electroerosion machine |
EP0355631A1 (en) * | 1988-08-19 | 1990-02-28 | AG für industrielle Elektronik AGIE Losone bei Locarno | Device for the treatment of the machining liquid of an electroerosion machine |
WO1992000797A1 (en) * | 1990-07-06 | 1992-01-23 | Bucher-Guyer Ag Maschinenfabrik | Process for rinsing the filter module of a device for purifying liquids |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998022204A1 (en) * | 1996-11-21 | 1998-05-28 | Memtec America Corporation | Microporous membrane filtration and backwashing process |
FR2817485A1 (en) * | 2000-12-06 | 2002-06-07 | Commissariat Energie Atomique | DECOLMATION OF A HOLLOW FIBER FILTER OPERATING IN FRONTAL MODE |
WO2002045829A1 (en) * | 2000-12-06 | 2002-06-13 | Commissariat A L'energie Atomique | Backwashing of a hollow fibre filter operating in frontal mode |
EP1691915A2 (en) * | 2003-12-07 | 2006-08-23 | 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 |
EP1691915A4 (en) * | 2003-12-07 | 2007-01-24 | Univ Ben Gurion | Method and system for increasing recovery and preventing precipitation fouling in pressure-driven membrane processes |
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 (en) * | 2006-05-31 | 2007-12-06 | X-Flow B.V. | Apparatus having a bioreactor and membrane filtration module for treatment of an incoming fluid |
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 (en) | 2006-05-31 | 2013-02-15 | 엑스-플로우 비.브이. | Apparatus having a bioreactor and membrane filtration module for treatment of an incoming fluid |
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 |
---|---|
HU9500422D0 (en) | 1995-04-28 |
PL307394A1 (en) | 1995-05-15 |
NZ266122A (en) | 1996-12-20 |
EP0663852A1 (en) | 1995-07-26 |
AU6719594A (en) | 1995-01-03 |
HUT71041A (en) | 1995-11-28 |
CA2141846A1 (en) | 1994-12-22 |
CZ35195A3 (en) | 1995-09-13 |
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