IL160580A - Crossflow filtration system and method for membrane fouling prevention - Google Patents

Crossflow filtration system and method for membrane fouling prevention

Info

Publication number
IL160580A
IL160580A IL160580A IL16058004A IL160580A IL 160580 A IL160580 A IL 160580A IL 160580 A IL160580 A IL 160580A IL 16058004 A IL16058004 A IL 16058004A IL 160580 A IL160580 A IL 160580A
Authority
IL
Israel
Prior art keywords
membrane module
fluid
cylinders
hydraulic
applying
Prior art date
Application number
IL160580A
Other versions
IL160580A0 (en
Inventor
Leonid Blyankman
Boris Podolsky
Original Assignee
Boris Podolsky
Leonid Blyankman
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 Boris Podolsky, Leonid Blyankman filed Critical Boris Podolsky
Priority to IL160580A priority Critical patent/IL160580A/en
Publication of IL160580A0 publication Critical patent/IL160580A0/en
Priority to PCT/IL2005/000187 priority patent/WO2005081627A2/en
Publication of IL160580A publication Critical patent/IL160580A/en

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
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/24—Specific pressurizing or depressurizing means
    • B01D2313/243—Pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/24—Specific pressurizing or depressurizing means
    • B01D2313/246—Energy recovery means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2315/00—Details relating to the membrane module operation
    • B01D2315/10—Cross-flow filtration
    • 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
    • B01D2321/2066—Pulsated flow
    • 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
    • B01D2321/40—Automatic control of cleaning processes
    • 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

Landscapes

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

Description

160580/2

Claims (28)

1. A crossflow filtration system for membrane fouling prevention, comprising: a) a pipe-line for feeding liquid to be cleaned; b) a pressure pump associated via a hydraulic line with the pipe-line for feeding fluid to be cleaned; c) a membrane module, including a membrane enclosed in a body associated via a pressure line with the pump and two exits, the first whereof serves for removing cleaned fluid, and the second - for removing waste concentrate, this membrane module serves for separating the feed into pure fluid and concentrate containing impurities; d) a pipe-line for cleaned fluid associated with the first exit of said membrane body; e) a pipe-line for removing waste concentrate connected with the second exit of said membrane body; f) means for applying an additional reciprocal fluid pulse to the fluid passing through membrane 26 located in membrane module 28 for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module, 160580/2 whereby there are prevented membrane fouling in said membrane module and formation thereon a boundary concentrare layer.
2. The system of claim 1, which is additionally provided with a control system controlling the operation of said pump, membrane module and means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module.
3. The system of claim 2, wherein said control system contains at least one microprocessor.
4. The system of claim 2, wherein said control system contains at least one controller.
5. The system of claim 1, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module may contain pressure pumps.
6. The system of claim 5, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module contain gear-type pumps. 160580/2
7. The system of claim 5, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module includes diaphragm pumps.
8. The system of claim 5, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module includes lobe pumps.
9. The system of claim 5, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module includes piston pumps.
10. The system of claim 5 - 9, wherein each of said pumps has an individual actuator.
11. The system of claim 10, wherein said pump actuators are associated with said control system.
12. The system of claim 1, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module contain diaphragm cylinders or piston type thrust cylinders. 160580/2
13. The system of claim 1, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module contain hydraulic cushions.
14. The system of claim 12 or 13, wherein each of said diaphragm cylinders, piston type thrust cylinders or hydraulic cushions has an individual actuator.
15. The system of claim 14, wherein said actuators of diaphragm cylinders, piston type thrust cylinders or hydraulic cushions are associated with said control system.
16. The system of claim 1, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module contain hydraulic cylinders.
17. The system of claim 16, wherein said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module contain hydraulic cylinders, the one whereof is connected with said first exit of said membrane module, the second - 160580/2 with said second exit of the membrane module, and the third cylinder-with said inlet of the membrane module and with the pressure line.
18. The system of claim 17, wherein said hydraulic cylinders connected together to form a single unit.
19. The system of claim 17, wherein each of said hydraulic cylinders has an individual actuator.
20. The system of claim 19, wherein said actuators of the hydraulic cylinders are associated with said control system.
21. The system of claim 1, wherein at least one of said means for applying an additional reciprocal fluid pulse to the fluid passing through the membrane module, is provided with an individual actuator and a hydraulic control device, having an autonomous actuator, is connected with the input and one of the outputs of the membrane module or with both inputs of the membrane module, and this means actuator and autonomous actuator of the hydraulic control device are connected with said contol system. 160580/2
22. A method for membrane fouling prevention by using system as defined in claim 1 ,by applying an additional reciprocal fluid pulse to the fluid passing through a membrane module via corresponding means, pressure pumps, diaphragm cylinders, piston type thrust cylinders, hydraulic cushions or hydraulic cylinders, each whereof has an individual actuator associated with the control system, this method comprises the following steps: i) applying an additional reciprocal fluid pulse to the fluid fed to the membrane module through the inlet; ii) applying an additional reciprocal fluid pulse to the fluid removed from the membrane module through said first exit; iii) applying an additional reciprocal fluid pulse to the fluid removed from the membrane module through the second exit; iv) repeating steps (i), (ii), (iii) in definite succession and definite combination until the oscillations of a fluid stream through the membrane module reach a desired level, whereby in said membrane module there is excited a controlled reciprocal motion of fluid in all directions, which prevents membrane fouling and the formation of a boundary concentrate layer. 160580/2
23. The method of claim 22, wherein said pressure pumps, diaphragm cylinders, piston type thrust cylinders, hydraulic cushions or hydraulic cylinders may operate in antiphase.
24. The method of claim 22, wherein said pressure pumps, diaphragm cylinders, piston type thrust cylinders, hydraulic cushions or hydraulic cylinders excite a hydraulic wave in the fluid passing through the membrane module.
25. The method of claim 22, wherein said control system changes the direction and velocity of streams at the outlets of these pressure pumps, diaphragm cylinders, piston type thrust cylinders, hydraulic cushions or hydraulic cylinders.
26. The method of claim 25, wherein said control system changes the mutual relation of fluid streams at the outlets of these pressure pumps, diaphragm cylinders, piston type thrust cylinders, hydraulic cushions or hydraulic cylinders in the value of these streams. 160580/2
27. The method of claim 25, wherein said control system changes the mutual relation of fluid streams at the outlet of these pumps, diaphragm cylinders, piston type thrust cylinders, hydraulic cushions or hydraulic cylinders in the direction of these streams.
28. The method of claim 25, wherein said control system changes the mutual relation of fluid streams at the outlet of these pressure pumps, diaphragm cylinders, piston type thrust cylinders, hydraulic cushions or hydraulic cylinders in the phase of these streams. Inventor: Boris Podolsky
IL160580A 2004-02-26 2004-02-26 Crossflow filtration system and method for membrane fouling prevention IL160580A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IL160580A IL160580A (en) 2004-02-26 2004-02-26 Crossflow filtration system and method for membrane fouling prevention
PCT/IL2005/000187 WO2005081627A2 (en) 2004-02-26 2005-02-15 Crossflow filtration system and method for membrane fouling prevention

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL160580A IL160580A (en) 2004-02-26 2004-02-26 Crossflow filtration system and method for membrane fouling prevention

Publications (2)

Publication Number Publication Date
IL160580A0 IL160580A0 (en) 2004-07-25
IL160580A true IL160580A (en) 2009-12-24

Family

ID=34073883

Family Applications (1)

Application Number Title Priority Date Filing Date
IL160580A IL160580A (en) 2004-02-26 2004-02-26 Crossflow filtration system and method for membrane fouling prevention

Country Status (2)

Country Link
IL (1) IL160580A (en)
WO (1) WO2005081627A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014006153A1 (en) * 2012-07-05 2014-01-09 Tetra Laval Holdings & Finance S.A. Improved control of permeate flow in a filter
US9309205B2 (en) 2013-10-28 2016-04-12 Wincom, Inc. Filtration process for purifying liquid azole heteroaromatic compound-containing mixtures
CN103551041B (en) * 2013-10-31 2016-04-13 佛山市清淇水处理科技有限公司 A kind of pulsed off-line cleaning device for reverse osmosis membrane
CN115385419B (en) * 2022-09-23 2023-08-08 重庆海通环保科技有限公司 Reverse osmosis membrane device with multiple filter cavities

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694143A (en) * 1992-09-16 1994-04-05 Nippon Millipore Kogyo Kk Back washing unit
US5512167A (en) * 1994-06-08 1996-04-30 Case Engineering & Laboratory, Inc. Backpulse piston assembly for crossflow filters
US5958243A (en) * 1996-07-11 1999-09-28 Zenon Environmental Inc. Apparatus and method for membrane filtration with enhanced net flux
DE29614439U1 (en) * 1996-08-20 1997-01-23 Filtrox-Werk Ag, St. Gallen Arrangement for filtering liquids with a cross-flow membrane

Also Published As

Publication number Publication date
IL160580A0 (en) 2004-07-25
WO2005081627A2 (en) 2005-09-09
WO2005081627A3 (en) 2005-12-08

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Legal Events

Date Code Title Description
FF Patent granted
MM9K Patent not in force due to non-payment of renewal fees