Title:
DEVICE FOR CLEANING AND METHOD FOR CLEANING WATER TREATMENT MEMBRANE, AND WATER TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/225186
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a device for cleaning with a high utilization efficiency for ozone gas with a simple constitution while preventing increases in size, as well as a method for cleaning a water treatment membrane and a water treatment system. A cleaning device (10) is provided with: an ozone gas supply unit (11); an ozone dissolution tank (12) that has a gas phase part (121) where ozone gas accumulates and a liquid phase part (122) formed by water for dissolving the ozone gas and in which ozone gas is dissolved in the water forming the liquid phase part (122) to generate ozone gas; a gas phase part ozone gas supply pipe (102) for supplying ozone gas from the ozone gas supply unit (11) to the gas phase part (121); a liquid phase part ozone gas supply pipe (103) for supplying ozone gas from the ozone gas supply unit (11) to the liquid phase part (122); and an ozone water supply pipe (105) for supplying ozone water generated in the ozone dissolution tank (12) to the secondary side (812) of a filter. The ozone water is supplied to the secondary side (812) of the filter by the pressure of the ozone gas inside the gas phase part (121).
Inventors:
KOGA HIROMICHI (JP)
TOKIMORI KOICHI (JP)
GOTO SHINSUKE (JP)
TOKIMORI KOICHI (JP)
GOTO SHINSUKE (JP)
Application Number:
PCT/JP2017/021135
Publication Date:
December 13, 2018
Filing Date:
June 07, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B01D65/02; B01D65/06; C02F1/44
Domestic Patent References:
| WO2015156242A1 | 2015-10-15 |
Foreign References:
| JP2001070761A | 2001-03-21 | |||
| JP2010199124A | 2010-09-09 | |||
| JP2001079365A | 2001-03-27 | |||
| JP2012096209A | 2012-05-24 | |||
| JPH0664904A | 1994-03-08 |
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
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