Potassium Permanganate/ Ozone Combined Oxidation for Minimizing Bromate in Drinking Water

Wen Yi Dong; Zi Jun Dong; Feng Ouyang; Yang Dong

doi:10.4028/www.scientific.net/AMR.113-116.1490

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 113-116Potassium Permanganate/ Ozone Combined Oxidation...

Potassium Permanganate/ Ozone Combined Oxidation for Minimizing Bromate in Drinking Water

Abstract:

In this study, experiments were conducted to make a comparison in bromate formation between KMnO4/O3 combined oxidation and single ozonation. The effect of KMnO4 dosage, temperature, pH and NOM on bromate formation during KMnO4/O3 combined oxidation was investigated. Result shows that, bromate formation is 26% lower during the process of KMnO4/O3 combined oxidation. The optimal KMnO4 dosage is suggested to be 1mg/L considering balance between bromate inhibition and the residual manganese concentration. When KMnO4 dosage was 1.0mg/L, initial bromide concentration was lower than 80 μg/L, and temperature was below 25°C, combined oxidation can make the formation of bromate under the maximum contaminant level of 10 μg/L. Finally, the probable mechanism of the better behavior of KMnO4/O3 combined oxidation was discussed.

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Periodical:

Advanced Materials Research (Volumes 113-116)

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1490-1495

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https://doi.org/10.4028/www.scientific.net/AMR.113-116.1490

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Online since:

June 2010

Authors:

Wen Yi Dong, Zi Jun Dong, Feng Ouyang, Yang Dong

Keywords:

Bromate, Combined Oxidation, Ozone, Potassium Permanganate

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