Behavior of two different constituents of natural organic matter in the removal of sodium dodecylbenzenesulfonate by O3 and O3-based advanced oxidation processes

The presence of gallic acid (GAL) or humic acid (HUM) during SDBS ozonation increases the oxidation of the surfactant and the transformation rate of ozone into HO
- radicals. This increase in the SDBS degradation rate is lower with larger molecular size of the acid considered.