SYSTEM AND METHOD FOR MEASURING HYDROGEN PEROXIDE CONCENTRATION

Title:

SYSTEM AND METHOD FOR MEASURING HYDROGEN PEROXIDE CONCENTRATION

Document Type and Number:

WIPO Patent Application WO/2019/150640

Kind Code:

A1

Abstract:

Provided are a method and system for measuring hydrogen peroxide concentration that make it possible to continuously and highly accurately quantify the hydrogen peroxide in sample water. This method is for measuring the hydrogen peroxide concentration in sample water collected from a prescribed position in a water treatment process and includes: a collection step for collecting the sample water; a correction value acquisition step for using a first dissolved oxygen concentration measurement means and second dissolved oxygen concentration measurement means to measure the dissolved oxygen concentration of the sample water or of treated water arrived at by treating the sample water using a hydrogen peroxide decomposition means and acquiring a correction value that is the difference between the two dissolved oxygen concentration values; a measured value acquisition step for using the first dissolved oxygen concentration measurement means to measure the dissolved oxygen concentration of the sample water, using the second dissolved oxygen concentration measurement means to measure the dissolved oxygen concentration of the treated water, and acquiring a measured value that is the difference between the two dissolved oxygen concentration values; and a calculation step for calculating a corrected hydrogen peroxide concentration from the measured value obtained in the measured value acquisition step and the correction value obtained in the correction value acquisition step.

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Inventors:

MORINO SHOTA (JP)
YANO DAISAKU (JP)
YAMASHITA YUKINARI (JP)
KAWAKAMI MASAYUKI (JP)

Application Number:

PCT/JP2018/033760

Publication Date:

August 08, 2019

Filing Date:

September 12, 2018

Export Citation:

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Assignee:

ORGANO CORP (JP)

International Classes:

G01N31/00; G01N33/18

Foreign References:

JP2012063303A	2012-03-29
JP2005274386A	2005-10-06
JP2017000970A	2017-01-05
JP2013108916A	2013-06-06
US20070238188A1	2007-10-11