In the present study, pilot experiments were conducted
to get a better understanding of the oxidation of pharmaceuticals
during ozonation of wastewater effluent. The
experiments were carried out on a wastewater with a DOC
concentration representative for good-quality secondary or
tertiary effluent. DOC was substantially lower compared to
the wastewater investigated in ref 15. The selected pharmaceutical
classes (macrolide and sulfonamide antibiotics,
iodinated X-ray contrast media, estrogens, and three acidic
pharmaceuticals) were spiked to the wastewater to be able
to determine 95-99%removal. Except for estrogens, resulting