Ozonation of aquatic organic matter and humic substances: An analysis of surrogate parameters for predicting effects on trihalomethane formation potential

Abstract
Ozone represents a potential oxidant for controlling trihalomethanes (THMs) during water treatment. The results presented herein indicate that partial oxidation of THM precursors by ozone produces by‐products which are lesa reactive in forming THMs upon chlorination. It is demonstrated that surrogate parameters such as nonvolatile total organic carbon, UV absorbance, and fluorescence are capable of monitoring the performance of the ozonation process in reducing the THM formation potential of waters containing THM precursors.