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

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 113-116)

Edited by:

Zhenyu Du and X.B Sun

Pages:

1490-1495

DOI:

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

Citation:

W. Y. Dong et al., "Potassium Permanganate/ Ozone Combined Oxidation for Minimizing Bromate in Drinking Water", Advanced Materials Research, Vols. 113-116, pp. 1490-1495, 2010

Online since:

June 2010

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Price:

$35.00

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