On-line monitoring of ozonation through estimation of Ct value, bromate and AOC formation with UV/Vis spectrometry

Journal article (2016)

Authors

P.S. Ross Sanitary Engineering - CEG , ARCADIS Nederland
J van den Broeke Optiqua Technologies
L.C. Rietveld Sanitary Engineering - CEG
Research Group
Sanitary Engineering (CEG) (TU Delft)
Copyright: Campus only © 2016 P.S. Ross, A.W.C. van der Helm, J. Van Den Broeke, L.C. Rietveld
DOI: https://doi.org/10.1039/c5ay03308j
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Published Date

21-04-2016

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Water Management

Research Group

Sanitary Engineering

Abstract

The application of ozone in water treatment serves many purposes, such as disinfection and degradation of organic micro-pollutants. To optimise the applied ozone dosage by on-line control, real-time information on the actual Ct value, the bromate and assimilable organic carbon concentration (AOC) is necessary. With UV/Vis spectroscopy, algorithms have been developed for the on-line determination of the Ct-value and the formation of bromate and AOC during ozonation. It was shown that these algorithms allow for the calculation of the optimal ozone dosage and provide a reliable indication of the amount of bromate and AOC formed during ozonation.

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