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Effects of Ozone and Biological Degradation on the Removal and Transformation of Highly Hydrophilic DOC in a Conventional Water Treatment Process

2024
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Dataset Description

The application of ozone followed by biological active filters (BAFs) for treating high dissolved organic carbon (DOC) waters has shown limited efficacy in DOC removal and controlling trihalomethanes (THMs). The following effects of ozone on DOC characteristics were extensively studied and documented: substantial and rapid decrease in UV254 absorbance and SUVA, increase in the hydrophilic (HPI) DOC content, and transformation of high MW compounds such as biopolymers (BP) and humic substances (HS) into low MW and building blocks (LMWs&BB). All these changes imposed by ozone could increase DOC biodegradability since HPI, low SUVA, and low MW compounds have been reported to be more biodegradable. While the effects of ozone on DOC characteristics have been extensively studied, these investigations often focused on source waters rather than coagulated/softened water. Coagulated/softened water exhibits different chemical characteristics than source water, such as lower UV254 absorbance, l...

Bibliographic Details

Saeideh Mirzaei; Beata Gorczyca; Mirzaei, Saeideh; Gorczyca, Beata; Sparling, Richard; Diaz, Juan

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