Influence of process parameters on the effectiveness of photooxidative treatment of emerging contaminants in water

Water is the curtail resource for sustainable life on Earth, yet it is subjected increasing pollution. Advanced oxidation processes showed a good performance in removing the micropollutants from water environment. In this study, 2-the authors evaluated UV-C/H2O2 and UV-C/S2O82- photooxidative processes for treatment of 14 emerging contaminants (pharmaceuticals and pesticides). Degradation of ECs by both photooxidations obeyed first-order kinetics. The kinetics of UV-C/S2O82- processes were several times faster than in UV-C/H2O2 cases. Also, it proved to be highly depended on [EC]:[OX] ratio and less sensitive to pH change.