Title:
FRESH WATER GENERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2014/061695
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a fresh water generation method, which is a reverse osmosis membrane fresh water production method suitable for small scale fresh water production such as for emergencies, and particularly a method, which is of high quality and in which the reverse osmosis membrane is not easily damaged. The present invention is a fresh water generation method wherein: semipermeable membrane processing is performed on the water being processed using a semipermeable membrane separation unit (9) to separate the water into a first concentrated water and a first permeate; the first permeate obtained is collected in a processed water tank (10); and subsequently, after the semipermeable membrane separation unit (9) has been rinsed, semipermeable membrane processing of the first permeate is performed using the semipermeable membrane separation unit (9) to separate the water into a second concentrated water and a second permeate.
Inventors:
TANIGUCHI MASAHIDE (JP)
MAEDA TOMOHIRO (JP)
TATEOKA DAISHI (JP)
MAEDA TOMOHIRO (JP)
TATEOKA DAISHI (JP)
Application Number:
PCT/JP2013/078063
Publication Date:
April 24, 2014
Filing Date:
October 16, 2013
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C02F1/44; B01D63/12; B01D65/02
Domestic Patent References:
| WO2011099578A1 | 2011-08-18 | |||
| WO2011046944A1 | 2011-04-21 |
Foreign References:
| JPS6490087A | 1989-04-05 | |||
| JP2002028456A | 2002-01-29 | |||
| JP2004261724A | 2004-09-24 | |||
| JPH10230260A | 1998-09-02 | |||
| JP2008137008A | 2008-06-19 |
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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