UREA TREATMENT APPARATUS AND UREA TREATMENT METHOD

WIPO Patent Application WO/2022/176477

A1

Provided are a urea treatment apparatus and a urea treatment method whereby it becomes possible to prevent the increase in a TOC value in water of interest supplied to a use point. A urea treatment apparatus for treating urea in water of interest is provided with: a first reaction vessel in which urea in the water of interest is treated; a first addition means which is connected to the first reaction vessel or a first pipe and can add a bromide salt and a chlorine-based oxidizing agent to the water of interest, in which the first pipe is connected to the first reaction vessel and the water of interest is supplied to the first reaction vessel through the first pipe; a second reaction vessel in which urea remaining in first treated water that has been treated in the first reaction vessel is treated; and a second addition means which is connected to the second reaction vessel or a second pipe and can add at least one of a chlorine-based oxidizing agent and a mineral acid to the first treated water, in which the second pipe is connected to the second reaction vessel and the first treated water is supplied to the second reaction vessel through the second pipe. The apparatus is used for a urea treatment method.

SHIOYA YUI (JP)
TAKAHASHI KAZUSHIGE (JP)
SUDO FUMIO (JP)

PCT/JP2022/001562

August 25, 2022

January 18, 2022

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ORGANO CORP (JP)

C02F1/42; C02F1/44; C02F1/70; C02F1/76

JPH0994585A	1997-04-08
JP2012086124A	2012-05-10
JP2020104093A	2020-07-09
JPH10277572A	1998-10-20
JP2014233658A	2014-12-15
JP2010531724A	2010-09-30

MIYAZAKI Teruo et al. (JP)

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