In the master's thesis we performed Fenton oxidation and continuous ozonation of model pharmaceutical ingredient (vancomycin) and determined its toxicity. We carry out acute toxicity tests with water flea Daphnia magna. Fenton oxidation was always carried out according to the same procedure, only hydrogen peroxide addition was changed. Our results showed that toxicity after Fenton oxidation decreased with increasing hydrogen peroxide addition. The inhibition of mobility of water flea falls from 100 % to 5 %. In ozonation we wanted to find out how the time of ozonation affects toxicity. It turned out that all the samples were non-toxic after ozonation. Only preliminary pH adjustment was crucial.
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