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Investigation of reaction mechanism for the degradation of pharmaceutical residues by pulsed corona discharges generated in water (2st Annual Meeting of COST Action TD 1208 )
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SYSNO ASEP 0455312 Document Type O - Others R&D Document Type Others Title Investigation of reaction mechanism for the degradation of pharmaceutical residues by pulsed corona discharges generated in water (2st Annual Meeting of COST Action TD 1208 ) Author(s) Banaschik, R. (DE)
Lukeš, Petr (UFP-V) RID, ORCID
Kolb, J.F. (DE)
Bednarski, P. (DE)
Miron, C. (DE)
Weltmann, K.-D. (DE)Year of issue 2015 Language eng - English Country ES - Spain Keywords pulsed corona ; plasma ; pharmaceutical residues Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects LD14080 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFP-V - RVO:61389021 Annotation We have found that pulsed corona discharges that are generated in a coaxial geometry directly in water are able to degrade a wide range of pharmaceutical residues, which are known to be problematic for water purification systems (diclofenac, ibuprofen, 17α-ethinylestradiol, carbamazepine, diatrizoate, diazepam, and trimethoprim). These pharmaceuticals were degraded by 45% - 99% for treatment times between 15 - 66 minutes, depending on the individual compound. Furthermore we studied and distinguished between different reaction pathways using a chemical model system (500 µM phenol) in combination with HPLC-DAD to identify degradation mechanisms. This way we were able to identify the attack by hydroxyl radicals as the main reaction pathway in our system. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2016
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