Transformation products and reaction kinetics of fragrances in advanced wastewater treatment with ozone

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  • Niklas Janzen, Department of Municipal Water- and Waste Management, University Duisburg-Essen, Essen, Germany, Tyskland
  • Elke Dopp, Institute of Hygiene and Occupational Medicine, University of Duisburg-Essen, Germany, Tyskland
  • Julia Hesse, Institute of Energy and Environmental Technology, Duisburg, Germany
  • ,
  • Jessica Richards, Institute of Hygiene and Occupational Medicine, University of Duisburg-Essen, Germany, Tyskland
  • Jochen Türk, Institute of Energy and Environmental Technology, Duisburg, Germany, Tyskland
  • Kai Bester
The reaction of the fragrance compounds 4,6,6,7,8,8-hexamethyl-1,3,4,7-tetrahydrocyclopenta[g]isochromene
(HHCB), 1-(3,5,5,6,8,8-hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone (AHTN), 1-tert-butyl-3,5-
dimethyl-2,4,6-trinitrobenzene (musk xylene/MX), 1-(4-tert-butyl-2,6-dimethyl-3,5-dinitrophenyl)
ethanone (musk ketone/MK), and 1-(2,3,8,8-tetramethyl-1,3,4,5,6,7-hexahydronaphthalen-2-yl)ethanone
(OTNE) with ozone in tap water as well as waste water treatment plant (WWTP) effluents is described. Several
transformation products are characterized by means of gas chromatography coupled to mass spectrometry.
One transformation product (HHCB-Lactone) was confirmed by means of a true standard.
Musk xylene and musk ketone do not react with ozone under the conditions used in this study. AHTN
and HHCB reacted slowly to a multitude of transformation products, while OTNE reacted quickly to several
stable transformation products. The reaction constants and half lives are used to predict removal efficiencies
for full scale reactors.
OriginalsprogEngelsk
TidsskriftChemosphere
Vol/bind85
Sider (fra-til)1481-1486
ISSN0045-6535
DOI
StatusUdgivet - 2011

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