NDLI: Decomposition of multi-class pharmaceutical residues in wastewater by exposure to ionising radiation

Content Provider	Springer Nature Link
Author	Baumane, L. Pugajeva, I. Rusko, J. Perkons, I. Mutere, O. Lundanes, E. Petrina, Z. Bartkevics, V. Nikolajeva, V. Reinholds, I. Kizane, G.
Copyright Year	2017
Abstract	This paper reports an experimental degradation study of nineteen multi-class pharmaceutical products present in the influent wastewater arriving at the Daugavgriva wastewater treatment plant. Collected wastewater samples were filtered and irradiated by electron beam and gamma radiation both generated from a 5 MeV linear particle accelerator. The samples were exposed to ten absorbed doses (0.5–25 kGy) produced at high dose rates (600 and 1200 kGy h$^{−1}$ for accelerated electrons, as well as 22.5 and 37.5 kGy h$^{−1}$ for gamma radiation). The analysis by a sensitive liquid chromatography–mass spectrometry method indicated that the initial concentrations of pharmaceutical residues were effectively reduced by up to 90–100% in eighty per cent of the cases when samples were exposed to 0.5–5 kGy of electron beam or gamma radiation treatment. Higher doses (>5 kGy) were needed to decompose macrolide antibiotics. The use of electron beam radiation showed some advantages due to the reduced exposure time, thus enabling a more energy efficient treatment resulting in the degradation of pharmaceutical residues comparable to that achieved by gamma irradiation. Microbiological studies indicated the pronounced degradation effect on bacterial contamination of wastewater, which was successfully eliminated upon increasing the radiation, dose up to 7–12 kGy.
Starting Page	1969
Ending Page	1980
Page Count	12
File Format	PDF
ISSN	17351472
Journal	International Journal of Environmental Science & Technology
Volume Number	14
Issue Number	9
e-ISSN	17352630
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-03-04
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ecotoxicology Orbitrap-high-resolution mass spectroscopy Water Management Microbiological assessment Pharmaceutical product residues Influent water Waste Water Technology Aquatic Pollution Ionising radiation Environment Water Pollution Control Environmental Chemistry Environmental Science and Engineering Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Environmental Engineering Agricultural and Biological Sciences

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