Effect of Chlorate Ion and Bromate Ion on the Potassium Permanganate Consumed in Swimming Pools Water

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  • 遊泳用プール水における過マンガン酸カリウム消費量に与える塩素酸イオン及び臭素酸イオンの影響
  • ユウエイヨウ プールスイ ニ オケル カマンガンサン カリウム ショウヒリョウ ニ アタエル エンソサン イオン オヨビ シュウソサン イオン ノ エイキョウ

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Abstract

The concentrations of chlorate (ClO3−) and bromate (BrO3−), generated from sodium hypochlorite (NaClO) used as bactericidal agents in a swimming pool collected in Yokohama, were higher than environmental quality standards for water pollution in Japan. In this study, we investigated the effect of chlorate and bromate on the potassium permanganate consumed, KMnO4 in the swimming pool. It was found that potassium permanganate consumed decreased upon the addition of chlorate and bromate to tap and swimming-pool water, while the total organic carbon (TOC) concentration was not affected. The effect of bromate on the potassium permanganate consumed was about 18-times higher than the effect of chlorate, although the mechanism was not cleared. Our results suggested that careful attention is required concerning sanitation of a swimming pool, even though the potassium permanganate consumed as organic pollutants was low.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 59 (4), 335-340, 2010

    The Japan Society for Analytical Chemistry

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