engleski

Influence of alcohol on the degradation of antiparasitics in wastewater

Various disinfectants are widely used in many areas of human life and activity, but a particularly large increase in use has been recorded since the outbreak of the coronavirus pandemic, which is increasing their concentration in the environment day by day. Xenobiotics such as pharmaceuticals and microplastics should not be neglected since they have already shown considerable impact. Given their increased use, it is necessary to monitor their path in the environment, the impact on the living world and to identify in time the potential consequences that may cause their actions. Simulating environmental conditions for a total of 5 hours, the effect of two disinfectants and ultrapure water on the photolytic degradation of antiparasitics was examined. Additional photolytic tests were performed for samples in the presence of microplastics. The results of the analysis showed that the antiparasitics albendazole and mebendazole were successfully degraded in all three working solutions, but greater degradation was observed in disinfectants due to the presence of alcohol and better solubility of the components themselves. Possible degradation or transformation products were detected for each of the pharmaceuticals, and the presence of microplastics did not show significant differences compared to the samples in which it was not contained.

antiparasitics, alcohols microplastics, photolytic degradation

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