Photochemical degradation of naproxen in the aquatic environment.
Naproxen belongs to the group of non-steroidal anti-inflammatory drugs. It is often used to treat pain of rheumatic and non-rheumatic diseases. The photochemical experiments of naproxen degradation were performed in the wastewater effluents from wastewater treatment plant (WWTP) Kloten/Switzerland at its real concentrations (without standard addition) and in drinking water containing naproxen standard, adjusted to pH = 7 and pH = 6. All performed experiments showed that within 5 min of photochemical oxidation, the disappearance of naproxen exceeded 90%. The first-order rate constants of naproxen degradation were determined. The maximal value of rate constant was observed by UV/H2O2 process in water samples at pH = 6 (k = 0.997 min(-1)).
Felis
E
E
Silesian University of Technology, Environmental Biotechnology Departament Akademicka 2, 44-100 Gliwice, Poland. ewa.felis@polsl.pl
Marciocha
D
D
Surmacz-Gorska
J
J
Miksch
K
K
D006861:Hydrogen Peroxide / Q000737:chemistry; D015394:Molecular Structure; D009288:Naproxen / Q000737:chemistry*; D010084:Oxidation-Reduction; D010777:Photochemistry; D014466:Ultraviolet Rays
D009288:Naproxen; D006861:Hydrogen Peroxide