Title:
REVERSE OSMOSIS MEMBRANE PROCESSING METHOD AND REVERSE OSMOSIS MEMBRANE PROCESSING EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2017/168720
Kind Code:
A1
Abstract:
Provided is a reverse osmosis membrane processing method that includes the following: a step for separating raw water into permeated water and concentrated water via a reverse osmosis membrane; and a step for supplying to the reverse osmosis membrane adjusted salt concentration water in which the salt concentration has been adjusted to a degree differing from the raw water, and deactivating microorganisms accumulated on the entrance side of the reverse osmosis membrane. The step for deactivating the microorganisms is repeated intermittently.
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| JPS5799304 | DEVICE FOR TREATING LIQUID BY MEMBRANE |
Inventors:
KAKIGAMI HIDEMASA (JP)
ITO YOSHIAKI (JP)
SUZUKI HIDEO (JP)
IWAHASHI HIDEO (JP)
ITO YOSHIAKI (JP)
SUZUKI HIDEO (JP)
IWAHASHI HIDEO (JP)
Application Number:
PCT/JP2016/060809
Publication Date:
October 05, 2017
Filing Date:
March 31, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B01D65/08; B01D61/02; B01D65/02; C02F1/44
Foreign References:
| JP2004121896A | 2004-04-22 | |||
| JP2006272136A | 2006-10-12 | |||
| JPS62234509A | 1987-10-14 | |||
| JP2011104504A | 2011-06-02 | |||
| JP2013056320A | 2013-03-28 | |||
| JP2013240762A | 2013-12-05 | |||
| US20120318737A1 | 2012-12-20 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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