Title:
REVERSE OSMOSIS MEMBRANE TREATMENT SYSTEM OPERATION METHOD AND REVERSE OSMOSIS MEMBRANE TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/158633
Kind Code:
A1
Abstract:
According to the present invention, in an RO membrane treatment system provided with an energy recovery device that recovers energy from concentrated water in an RO membrane device, biofouling is suppressed not only in the RO membrane device, but also in the energy recovery device and, to improve system-wide energy efficiency and for stable operation, at least one of a combined chlorine-based slime control additive and a stabilized bromine-based slime control additive is added to an RO water supply so as to render the residual halogen concentration in the concentrated water in the RO membrane device introduced into the energy recovery device 0.1-10000 mg/L in terms of the total chlorine concentration.
Inventors:
NAKAMURA TAEKO (JP)
KOWATA KENJI (JP)
ENDO YOSHIHIKO (JP)
KOWATA KENJI (JP)
ENDO YOSHIHIKO (JP)
Application Number:
PCT/JP2016/059292
Publication Date:
October 06, 2016
Filing Date:
March 24, 2016
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C02F1/44; B01D61/04; B01D61/06; B01D61/12; C02F1/50; C02F1/76
Domestic Patent References:
| WO2011030589A1 | 2011-03-17 | |||
| WO2013005787A1 | 2013-01-10 |
Foreign References:
| JP2014176799A | 2014-09-25 |
Other References:
See also references of EP 3279151A4
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
Takeshi Shigeno (JP)
Takeshi Shigeno (JP)
Download PDF: