Pilot-scale study of UVC-based AOPs towards implementation at the outlet of domestic WWTPs.

The degradation of a mixture of ibuprofen, naproxen, and diclofenac in various effluents by UVC/HO or UVC/SO was studied to assess the impact of the matrix composition and of the oxidant precursor on process efficiency. Experiments were carried out in a 20-L laboratory pilot (a scaled-down version of a full-scale pilot). In effluents collected during dry weather, the rural constructed wetland effluent allowed faster degradation than the urban conventional WWTP effluent, regardless of the nature of the targets or of the oxidant precursor.