Title:
WATER TREATMENT DEVICE, ULTRAPURE WATER MANUFACTURING DEVICE, AND WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2017/086252
Kind Code:
A1
Abstract:
To provide a water treatment device and a water treatment method able to easily and effectively remove urea from water, and to provide an ultrapure water manufacturing device able to easily obtain high-purity ultrapure water that has an extremely low TOC concentration. The water treatment device and the water treatment method, which are provided with: a non-water-soluble polymer onto which is fixed an amino group or a quaternary ammonium group; and a biological activated carbon for treating raw water that has been contacted by the non-water-soluble polymer. The ultrapure water manufacturing device, which has the water treatment device, and a primary pure water system and a secondary pure water system provided downstream from the water treatment device.
Inventors:
TSUKAKOSHI MASATAKA (JP)
Application Number:
PCT/JP2016/083563
Publication Date:
May 26, 2017
Filing Date:
November 11, 2016
Export Citation:
Assignee:
NOMURA MICRO SCIENCE KK (JP)
International Classes:
C02F3/34; C02F1/42; C02F3/00; C02F3/06; C02F3/10; B01J41/05; B01J41/07; B01J41/14; B01J47/02
Domestic Patent References:
| WO2011135942A1 | 2011-11-03 |
Foreign References:
| JPH08150400A | 1996-06-11 | |||
| JPH0839058A | 1996-02-13 | |||
| JPS5995987A | 1984-06-02 | |||
| JP2007313492A | 2007-12-06 | |||
| JPS6168198A | 1986-04-08 |
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (JP)
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