Elimination of Pharmaceutical Active Compounds and their Metabolites from Different Waters by Means of Adsorbents and Ultrafiltration with Special Focus on Adsorbent Recycling (Willy-Hager II)
Elimination of Pharmaceutical Active Compounds and their Metabolites from Different Waters by Means of Adsorbents and Ultrafiltration with Special Focus on Adsorbent Recycling
The presence of pharmaceutical active compounds (PhACs) in waste-, surface- and groundwater has gained interest in the last years. Nowadays PhACs are more frequently detected in the aquatic environment as a result of high water solubility, incomplete biodegradability and the increased production of pharmaceutical products. Traces of PhACs were found even in drinking water. The combination adsorption / ultrafiltration permits: firstly an almost complete elimination of PhACs by the adsorbent and secondly adsorbent separation as well as secure rejection of bacteria and viruses by membrane filtration. Within the project: "Elimination of pharmaceutical active compounds and their metabolites from different waters by means of adsorbents and ultrafiltration with special focus on adsorbent recycling", funded by the Willy-Hager Stiftung, Stuttgart, different aspects of the adsorption / ultrafiltration process are investigated. Research activities include:
- adsorption efficiency using different PhACs and different adsorbents (adsorption kinetic, selectivity of the adsorption, etc.),
- influence of natural organic matter (NOM) on the adsorption of PhACs,
- alternative adsorbents in combination with ultrafiltration membranes,
- long-run-behavior of the adsorbents and the membrane (pore-blocking by the adsorbent, fouling, membrane surface deterioration, etc.),
- biodegradation of PhACs, regeneration of the adsorbents.