EFFICIENCY OF UV-OXIDATION IN REMOVAL OF PHARMACEUTICALS FROM WASTER WATER SAMPLES AND TOXICOLOGICAL EVALUATION BEFORE AND AFTER THE OXIDATIVE TREATMENT

摘要

Conventional waste water treatment plants are not able to remove micropollutants completely, resulting in the influent of those substances into surface waters. Especially pharmaceuticals are very often resistant against the biological degradation because of their polarity and persistence [1] [2]. As components in waste water treatment plant (WWTP) effluents these substances can influence the aquatic environment (surface- and ground water) and cause adverse effects in aquatic organisms [3]. Low concentrations of pharmaceuticals can also be detected in drinking water which is of particular importance for human exposure [4]. Moreover, according to the WHO it is expected that additive toxicological effects of the different micropollutants may occur [5].