Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Polycyclic musk fragrances (PMFs) in wastewater and activated sludge: analytical protocol and application to a real case study |
| Abstract | Two different analytical methods for the determination of polycyclic musk fragrances (PMFs) in wastewater and in activated sludge were developed. PMFs in filtered water samples were determined by gas chromatography coupled with a triplequadrupole mass spectrometer in selected reaction monitoring (SRM) mode. Activated sludge samples were extracted using an ultrasonic bath and analysed using a GC-Ion trap. The developed methods respected a linear model (R2 > 0.995). Detection limits of selected compounds (Celestolide, Galaxolide, Galaxolidone, Phantolide and Tonalide) varied from 1.7 to 80 ng L-1 for water and from 0.1 ng g-1 to 210 ng g-1 for activated sludge considering laboratory contamination for each PMF. Recovery studies were performed on spiked water samples and, for sludges, on procedural blanks, showing recoveries above 70%for all the considered compounds, while recovery of the internal standard was always above limit of acceptance (30%). Proposed methods were used to determine PMFs concentrations in wastewaters and activated sludges of a wastewater treatment plant (WWTP) located in Northern Italy. Concentrations in the range of ?g L-1 of Galaxolide and of its metabolite Galaxolidone were detected even in the WWTP effluent. Biotransformation of Galaxolide into Galaxolidone occurred during biological treatment with the consequent release of this compound through WWTP effluents. In activated sludges, concentrations of all PMFs except Galaxolidone were one order of magnitude higher than wastewaters, as expected according to their physicochemical properties. Present wastewater treatment technologies were confirmed to not be efficient in removing PMFs from influent wastewaters since with only ? 30% of Celestolide and Tonalide were removed. |
| Source | Environmental Science and Pollution Research, pp. 30977–30986 |
| Keywords | Polycyclicmuskfragrances(PMFs) .Emergingpollutants .Wastewater treatmentplant .Activatedsludge .Solidphase extraction . Ultrasonic bath extraction . Gas chromatography-mass spectrometry |
| Journal | Environmental Science and Pollution Research |
| Editor | , , |
| Year | 2020 |
| Type | Articolo in rivista |
| DOI | 10.1007/s11356-019-06767-7 |
| Authors | Tasselli Stefano, Guzzella Licia |
| Text | 418830 2020 10.1007/s11356 019 06767 7 Polycyclicmuskfragrances PMFs .Emergingpollutants .Wastewater treatmentplant .Activatedsludge .Solidphase extraction . Ultrasonic bath extraction . Gas chromatography mass spectrometry Polycyclic musk fragrances PMFs in wastewater and activated sludge analytical protocol and application to a real case study Tasselli Stefano, Guzzella Licia National Research Council Water Research Institute CNR IRSA , S.S. Brugherio via del Mulino 19 MB , 20861 Brugherio, Italy Department of Environmental Sciences, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy Two different analytical methods for the determination of polycyclic musk fragrances PMFs in wastewater and in activated sludge were developed. PMFs in filtered water samples were determined by gas chromatography coupled with a triplequadrupole mass spectrometer in selected reaction monitoring SRM mode. Activated sludge samples were extracted using an ultrasonic bath and analysed using a GC Ion trap. The developed methods respected a linear model R2 > 0.995 . Detection limits of selected compounds Celestolide, Galaxolide, Galaxolidone, Phantolide and Tonalide varied from 1.7 to 80 ng L 1 for water and from 0.1 ng g 1 to 210 ng g 1 for activated sludge considering laboratory contamination for each PMF. Recovery studies were performed on spiked water samples and, for sludges, on procedural blanks, showing recoveries above 70%for all the considered compounds, while recovery of the internal standard was always above limit of acceptance 30% . Proposed methods were used to determine PMFs concentrations in wastewaters and activated sludges of a wastewater treatment plant WWTP located in Northern Italy. Concentrations in the range of g L 1 of Galaxolide and of its metabolite Galaxolidone were detected even in the WWTP effluent. Biotransformation of Galaxolide into Galaxolidone occurred during biological treatment with the consequent release of this compound through WWTP effluents. In activated sludges, concentrations of all PMFs except Galaxolidone were one order of magnitude higher than wastewaters, as expected according to their physicochemical properties. Present wastewater treatment technologies were confirmed to not be efficient in removing PMFs from influent wastewaters since with only 30% of Celestolide and Tonalide were removed. Postprint 14/10/2019 Polycyclic musk fragrances PMFs in wastewater and activated sludge Articolo_Pubblicato Tasselli.pdf Articolo in rivista Environmental Science and Pollution Research Environmental Science and Pollution Research stefanotasselli TASSELLI STEFANO liciamaria.guzzella GUZZELLA LICIA MARIA |