Title:
METHOD FOR IMPROVING INHIBITION PERFORMANCE OF SEMIPERMEABLE MEMBRANE, SEMIPERMEABLE MEMBRANE, AND SEMIPERMEABLE MEMBRANE WATER PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/111371
Kind Code:
A1
Abstract:
Disclosed is a method for improving the inhibition performance of a semipermeable membrane by supplying, in a pressurized manner, a liquid including an inhibition performance improving agent to the primary side of the semipermeable membrane and bringing the liquid into contact with the membrane surface, the method comprising a step of changing the pressure acting on the membrane surface and/or the permeation flow rate from that during normal treatment and maintaining the same by: changing the pressure at a fluctuation velocity of 0.05 MPa/s or higher at least once during supply; or changing the osmotic pressure of the liquid including the inhibition performance improving agent; or changing the supply flow rate to the semipermeable membrane.
Inventors:
TANIGUCHI MASAHIDE (JP)
TAKABATAKE HIROO (JP)
SUGITA KAZUYA (JP)
TAKABATAKE HIROO (JP)
SUGITA KAZUYA (JP)
Application Number:
PCT/JP2016/050584
Publication Date:
July 14, 2016
Filing Date:
January 08, 2016
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B01D67/00; B01D63/10; B01D71/56; C02F1/44
Foreign References:
| JP2008155123A | 2008-07-10 | |||
| JP2010104919A | 2010-05-13 | |||
| JPH08309350A | 1996-11-26 | |||
| JPH06254553A | 1994-09-13 |
Other References:
See also references of EP 3243562A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P. C. (JP)
Patent business corporation glory patent firm (JP)
Patent business corporation glory patent firm (JP)
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