Development of Composition-determining System in Seawater Concentrating Process of Salt-manufacturing Factories

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  • 製塩工場 の海水濃縮工程 における溶液組成測定 システムの開発
  • 製塩工場の海水濃縮工程における溶液組成測定システムの開発(第2報)測定システムの工程への導入
  • セイエン コウジョウ ノ カイスイ ノウシュク コウテイ ニ オケル ヨウエキ
  • (II) Introduction of Determination System into Salt-manufacturing Process
  • (第2報) 測定システムの工程への導入

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Abstract

Determining the composition in the seawater concentrating process of salt-manufacturing factories is important in the operation of the electrodialyzer. We introduced an in-line determination system into the process of DIASALT Co. Ltd. in order to determine the composition of the brine with ion selective electrodes and a densitymeter, as well as the chloride ion concentrations of seawater and the desalted water with a conductivity meter. The result is as follows. The determined values of the composition of the brine and the chloride concentration of the seawater and the desalted water were accurate enough for practical use. Therefore, this system made the in-line determination possible. About two years has elapsed since we introduced this system, and we have seen stable automatic determination without serious trouble.

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