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 a...

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Bibliographic Details
Published in:Water science and technology 2007-01, Vol.55 (12), p.281-286
Main Authors: Felis, E, Marciocha, D, Surmacz-Gorska, J, Miksch, K
Format: Article
Language:English
Subjects:
Anti-inflammatory agents
Aquatic environment
Constants
Drinking water
Effluents
Hydrogen peroxide
Hydrogen Peroxide - chemistry
Inflammation
Molecular Structure
Naproxen
Naproxen - chemistry
Nonsteroidal anti-inflammatory drugs
Oxidation
Oxidation-Reduction
Pain
pH effects
Photochemicals
Photochemistry
Rate constants
Rheumatic diseases
Ultraviolet radiation
Ultraviolet Rays
Wastewater
Wastewater treatment
Wastewater treatment plants
Water analysis
Water sampling
Water treatment plants
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Summary: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)).
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2007.417