12 Abstract 13Degradation and mineralization of the hydrophilic pharmaceuticals diclofenac and 14 clofibric acid in aqueous media were investigated under indoor UV illumination (super 15 high-pressure Hg lamp) and under outdoor solar exposure. Indoor experiments were carried out 16 using three different protocols: (i) UV ozonation of TiO 2 dispersions (UV/TiO 2 /O 3), (ii) 17 UV-irradiated TiO 2 oxygenated dispersions (UV/TiO 2 /O 2 ), and (iii) UV ozonation of the 18 solutions (UV/O 3 ). Results from these protocols were established by total organic carbon (TOC) 19 assays, HPLC chromatography (IC-HPLC) and by the evolution of Cl -, NO 3and NH 4 + ions 20 (where appropriate). Indoor remediation of aquatic ecosystems contaminated with these two 21 pharmaceuticals occurred in the order (photodegradation/mineralization): for diclofenac after 22 120 min, UV/TiO 2 /O 3 (100%/92%) > UV/O 3 (97%/47%) > UV/TiO 2 /O 2 (43%/35%); for 23 clofibric acid after 30 min, UV/TiO 2 /O 3 (99%/92%) > UV/O 3 (94%/33%) > UV/TiO 2 /O 2 24
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