DEVICE FOR TREATING WATER CONTAINING HYDROGEN PEROXIDE

WIPO Patent Application WO/2010/113918

A1

Provided is a device for treating water containing hydrogen peroxide, which has a simple configuration and is relatively compact and which can be continuously operated to stably and efficiently treat even wastewater containing hydrogen peroxide in a relatively high concentration on the order of percentage. The device for treating water containing hydrogen peroxide, in which water to be treated is brought into contact with a hydrogen peroxide decomposition catalyst to decompose the hydrogen peroxide contained in the water into oxygen and water, thereby obtaining treated water, is characterized by comprising: a hydrogen peroxide decomposition reactor (2) that has an inlet for the water to be treated and an outlet for treated water and holds a hydrogen peroxide decomposition catalyst (1) packed inside; and a gas-liquid separator (3) into which the effluent discharged from the hydrogen peroxide decomposition reactor (2) is introduced. The device is further characterized in that the gas-liquid separator (3) is constituted of a cylindrical vessel (4) having gas discharge piping (13) connected to an upper part thereof and drainage piping (14) connected to a lower part thereof, and that the effluent is introduced into a side part of the cylindrical vessel (4).

TOKOSHIMA HIROTO (JP)
IKEMIYA NORITO (JP)
KOBAYASHI HIDEKI (JP)

PCT/JP2010/055637

October 07, 2010

March 30, 2010

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KURITA WATER IND LTD (JP)
TOKOSHIMA HIROTO (JP)
IKEMIYA NORITO (JP)
KOBAYASHI HIDEKI (JP)

C02F1/58; B01D19/00; B01J31/28; C02F1/20

JP2003053354A	2003-02-25
JPH11197674A	1999-07-27
JP2007185587A	2007-07-26
JP2006527067A	2006-11-30

SHIGENO, Tsuyoshi (JP)
Takeshi Shigeno (JP)

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