Title:
WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2016/111370
Kind Code:
A1
Abstract:
The primary side of a semipermeable membrane unit which is composed of one or a plurality of semipermeable membrane elements, and supplied with raw water to obtain permeant water and concentrated water, is fed a blocking-rate improver solution containing a blocking-rate improver. The feed pressure and/or permeant water flow rate is measured during feed of the blocking-rate improver solution, and on the basis of measured values, at least one action selected from modification of the permeant water flow rate during feed of the blocking-rate improver solution, modification of the concentration and/or the composition of the blocking-rate improver in the blocking-rate improver solution, halting of the feed of the blocking-rate improver solution, and modification of the temperature of the blocking-rate improver solution, is executed.
More Like This:
| JPH04250836 | TREATMENT TO GIVE HEAT RESISTANCE TO POLYSULFON HOLLOW FIBER MEMBRANE |
| WO/2023/186622 | BIPOLAR MEMBRANES |
| JP2006160837 | METHOD FOR PREPARATION OF ELECTROLYTE MEMBRANE |
Inventors:
TAKABATAKE HIROO (JP)
TANIGUCHI MASAHIDE (JP)
SUGITA KAZUYA (JP)
TANIGUCHI MASAHIDE (JP)
SUGITA KAZUYA (JP)
Application Number:
PCT/JP2016/050576
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:
| JP2010104919A | 2010-05-13 | |||
| JPH08309350A | 1996-11-26 | |||
| JPH06254553A | 1994-09-13 | |||
| JP2008155123A | 2008-07-10 | |||
| JP2014128760A | 2014-07-10 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P. C. (JP)
Patent business corporation glory patent firm (JP)
Patent business corporation glory patent firm (JP)
Download PDF: