title: Transformation products and reaction kinetics of fragrances in advanced wastewater treatment with ozone.
abstract: 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.
authors.affiliation: Department of Municipal Water- and Waste Management, University Duisburg-Essen, Essen, Germany.
authors.forename: Niklas
authors.initials: N
authors.lastname: Janzen
authors.forename: Elke
authors.initials: E
authors.lastname: Dopp
authors.forename: Julia
authors.initials: J
authors.lastname: Hesse
authors.forename: Jessica
authors.initials: J
authors.lastname: Richards
authors.forename: Jochen
authors.initials: J
authors.lastname: Türk
authors.forename: Kai
authors.initials: K
authors.lastname: Bester
mesh_terms: D001578:Benzopyrans / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D007700:Kinetics; D010084:Oxidation-Reduction; D010126:Ozone / Q000737:chemistry*; D010476:Perfume / Q000737:chemistry*; D012722:Sewage / Q000737:chemistry*; D013764:Tetrahydronaphthalenes / Q000737:chemistry; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification; D014992:Xylenes / Q000737:chemistry
chemical_list: D001578:Benzopyrans; D010476:Perfume; D012722:Sewage; D013764:Tetrahydronaphthalenes; D014874:Water Pollutants, Chemical; D014992:Xylenes; C033119:galaxolide; C031447:musk xylene; C033116:acetyl methyl tetramethyl tetralin; C031448:musk ketone; D010126:Ozone