Title:
WATER TREATMENT DEVICE AND WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2020/012786
Kind Code:
A1
Abstract:
Provided are a water treatment device and a water treatment method for treating polymeric-organic-matter-containing water, the device and method being capable of suppressing fouling of a membrane and being capable of operating in a stable manner. A water treatment device 1 for treating polymeric-organic-matter-containing water that contains polymeric organic matter, wherein the water treatment device 1 comprises: a water tank 10 for retaining the polymeric-organic-matter-containing water; a raw water tank 12 for retaining the polymeric-organic-matter-containing water from the water tank 10; an ozone treatment device 22, which is a peroxide-adding means for adding peroxide while circulating water in the raw water tank 12; a membrane filtration device 14 for performing a membrane filtration treatment on the water in the raw water tank 12; a concentrated-water-returning means for returning at least some of concentrated water obtained in the membrane filtration treatment to the raw water tank 12; an activated carbon treatment device 18, which is a peroxide-decomposing means for performing a decomposition treatment on peroxide in membrane-filtered water obtained in the membrane filtration treatment; and a treated-water-returning means for returning at least some of treated water that was subjected to the decomposition treatment by the activated carbon treatment device 18 to the water tank 10.
Inventors:
TAKADA AKIHIRO (JP)
FUKUMIZU KEIICHIRO (JP)
FUKUMIZU KEIICHIRO (JP)
Application Number:
PCT/JP2019/020573
Publication Date:
January 16, 2020
Filing Date:
May 24, 2019
Export Citation:
Assignee:
ORGANO CORP (JP)
International Classes:
C02F1/44; A01K63/04; C02F1/58; C02F1/78; C02F9/02; C02F9/04
Foreign References:
| JP2015181973A | 2015-10-22 | |||
| JP2014188473A | 2014-10-06 | |||
| JP2008055385A | 2008-03-13 | |||
| JP2003326258A | 2003-11-18 | |||
| JP2015173995A | 2015-10-05 | |||
| JP2017202467A | 2017-11-16 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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