Kurita Water Industries Ltd.

Dkk-Toa Corporation

Shintarou Mori

Yukimasa Shimura

Yuko Konno

Satoshi Takizawa

Tetsuya Sato

Shuji Sugawara

Provided are a concentration-factor measurement device and method for accurately calculating a concentration factor of circulating water, and a method for measuring a water-quality index value of the circulating water. The concentration-factor measurement device includes a light-absorbance measurement unit () for measuring absorbance by irradiating each of cells (A-C) with light, and an electrode measurement unit () equipped with electrodes () that are inserted into a water sample in a container (). For each item of water quality, the device calculates a concentration factor on the basis of a measured value measured when the water sample (W) is the circulating water, and a measured value measured when the water sample (W) is makeup water. A plurality of concentration factors are calculated on the basis of the measured values for plural items of water quality. Hence an accurate concentration factor can be obtained.

Concentration-factor measurement device and method

A system for calculating a concentration of a water treatment chemical includes a water analyzer, databases storing information regarding a chemical component of the water treatment chemical, a server sending the information stored in the database, and a communication device sending the information acquired from the server to the water analyzer. The water analyzer includes a storage unit storing a calibration curve defining the relationship between the concentration of a chemical component and absorbance, a communication unit receiving the information regarding the chemical component of the water treatment chemical, an irradiation unit irradiating water to be analyzed with light, a detection unit detecting transmitted light, and an arithmetic and control unit calculating absorbance from the result of the detection by the detection unit, acquiring a calibration curve from the storage unit, and calculating the concentration of the chemical component with reference to the acquired calibration curve and the measured absorbance.

System and method for calculating concentration of water treatment chemical

Water quality analyzer

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Method of using an amine compound as anticorrosive for a boiler

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Tokyo, Japan

Shintarou Mori