Title:
METHOD AND APPARATUS FOR REMOVING HYDROGEN PEROXIDE
Document Type and Number:
WIPO Patent Application WO/2019/116653
Kind Code:
A1
Abstract:
A method and an apparatus both for decomposing and removing hydrogen peroxide by flowing water containing hydrogen peroxide through columns 21 to 25 each filled with a platinum-based catalyst, wherein the hydrogen peroxide removal performance can be recovered by halting the flowing of the water through one or some of the columns at a predetermined point of time and storing the platinum-based catalyst in the columns in ultra-pure water. It is possible to flow a nitrogen gas or hydrogen-dissolved water through the columns through which the flowing of the water is halted at the predetermined point of time, and it is also possible to increase the volume of the water to be flowed through the other columns.
Inventors:
MORITA HIROSHI (JP)
MINATO YASUHARU (JP)
MINATO YASUHARU (JP)
Application Number:
PCT/JP2018/033813
Publication Date:
June 20, 2019
Filing Date:
September 12, 2018
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
B01J31/28; C02F1/58; B01J31/40; B01J38/48; C02F1/20
Domestic Patent References:
| WO2014203601A1 | 2014-12-24 |
Foreign References:
| JP2016097389A | 2016-05-30 | |||
| JP2013166096A | 2013-08-29 | |||
| JP2005199108A | 2005-07-28 | |||
| JP2007160268A | 2007-06-28 | |||
| JPH07227542A | 1995-08-29 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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