Contribution information

Title Selected micropollutants and their toxicity in groundwater
Status Accepted
Final type Lecture
Final session Environmental engineering
Authors K., Šimkovič1, J., Derco2, C., Griebler3
1 Faculty of Chemical and Food Technology STU in Bratislava, Bratislava, Slovakia
2 Faculty of Chemical and Food Technology, Slovak University of Technology, Bratislava, Slovakia
3 Helmholtz Zentrum München German Research Center for Environmental Health, Institute of Groundwater Ecology, Munich, Germany
Brief content The amount of potentially hazardous substances entering the ecosystem is increasing every day. With increase in usage of groundwater for drinking purposes, it is crucial to monitor groundwater quality. Micropollutants have emerged as a global concern due to their ubiquitous presence in the hydrological systems. Existing biological wastewater treatment plants are not specifically designed to remove micropollutants therefore discharges from WWTPs is considered as major point source of these chemicals in our environment. In this study, fate and influence of 4 organic micropollutants (Sulfamethoxazole, Acesulfame, Benzotriazole and 4-Formyl-aminoantipyrine) in microbially active aquifer was monitored in mesocosm aquifer systems. The results show that low concentrations of micropollutants, in the range of several months (210 days), does not cause any significant changes to aquifer microbial activity under static and flow through conditions. In the case of 4-FAA compound, degradation occured. Other substances showed resistance to microbial degradation. Simulations performed considering transport processes suggest influence of dispersion and sorption on spreading of the micropollutants delaying their transport.
ID 42