Title:
WATER PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/117082
Kind Code:
A1
Abstract:
Provided is a water purification system with which it is possible to reduce maintenance costs and reduce the processing load of a reverse osmosis membrane device. The water purification system is provided with: a pretreatment device that removes insoluble components included in raw water; a pressurizing pump that pressurizes treated water from which the insoluble components were removed by the pretreatment device; and a reverse osmosis membrane device that produces treated water resulting from removing the soluble components from the treated water pressurized by the pressurizing pump, wherein a ceramic membrane is used in the pretreatment device. The water purification system is further provided with: a first route, by which the treated water from which the insoluble components were removed by the pretreatment device is supplied to the reverse osmosis membrane device via the pressurizing pump; and a second route, by which the treated water produced by the reverse osmosis membrane device is supplied as backwash water to the pretreatment device via the pressurizing pump.
Inventors:
EZAKI SATOSHI (JP)
SATO YUUKI (JP)
SATO YUUKI (JP)
Application Number:
PCT/JP2015/051678
Publication Date:
July 28, 2016
Filing Date:
January 22, 2015
Export Citation:
Assignee:
KUBOTA KK (JP)
International Classes:
C02F1/44; B01D61/04; B01D65/02
Foreign References:
| JP2012239948A | 2012-12-10 | |||
| JP2002126468A | 2002-05-08 | |||
| JP2009240903A | 2009-10-22 | |||
| JP2013022574A | 2013-02-04 | |||
| JPH05285354A | 1993-11-02 | |||
| JP2002177746A | 2002-06-25 | |||
| JP2013085993A | 2013-05-13 |
Attorney, Agent or Firm:
HASHIMOTO, KAORU (JP)
Hashimoto Scent (JP)
Hashimoto Scent (JP)
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