Sewage Lagoon Photolysis Pharmaceuticals Transformation products

After the aerated lagoons, water flows through a series of 10 shallow, aerobic lagoons after which the effluent is discharged. In this study, we sampled within the WWTP at the inlet (untreated wastewater), at the two aerated ponds, at every pond (total 10) within the lagoon system and at the outlet (final effluent). It was not possible to monitor composite samples, so grab samples were taken from each sampling point in November 2013.