Abstract
Investigating the biodegradation of ozonation products of trace organic contaminants is important to further elucidate their fate and to assess the efficiency of advanced water treatment processes.
Highlights
Trace organic contaminants (TrOCs) in water bodies can be expected, including the widespread application of advanced water treatment approaches
At ozone doses typically applied for water treatment, primary and secondary oxidation reactions do not lead to significant mineralization but generate biodegradable assimilable organic carbon[25,26,27,28] and transformation products of TrOCs.[29]
Ozonation is usually combined with a biofiltration step such as sand filtration to remove biodegradable organic carbon and to further break down transformation products.[31]
Summary
TrOCs in water bodies can be expected, including the widespread application of advanced water treatment approaches. Ozone is a traditional drinking water disinfectant[18] and ozonation is among the most promising technologies to degrade TrOCs during advanced wastewater treatment, water. Ozonation can be applied prior to natural engineered water treatment, including constructed wetlands, soil aquifer treatment and riverbank filtration.[32]
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