AWWA WQTC65712

AWWA WQTC65712 On-line Monitoring of Drinking Water Treatment Efficacy Using UV/Vis-spectrometry
Conference Proceeding by American Water Works Association, 11/01/2007

van den Broeke, J.; Ross, P.S.; van der Helm, A.W.C.; Rietveld, L.C.

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The concentration of dissolved ozone and Assimilable Organic Carbon (AOC) areimportant performance parameters in drinking water production. For themeasurement of ozone, a spectral algorithm was developed that allows quantificationin-situ using a UV/Vis spectrometer probe. Furthermore, a strong correlation betweenthe change in the absorption spectrum after individual treatment steps and theformation or removal of AOC in that treatment step was observed. This allowed thedevelopment of a spectral algorithm that predicts AOC formation during ozonationand subsequent removal in further treatment steps. This method has been verified atone pilot plant of the Amsterdam drinking water supply. Includes 12 references, table, figures.