Recycling and recovering valuable resources from wastewater treatment plants is an important aspect in circular economy. The safe use of sludge and sludge-related products deriving from wastewater treatment strictly depends on their chemical contamination, especially by emerging pollutants. In this work, an analytical method was developed for the determination of a range of selected compounds, included in a recent European watch-list (macrolides, fluoroquinolones, neonicotinoids, carbamates and estrogens), in recovery materials from innovative pilot systems. Both the instrumental analysis by high-performance liquid chromatography-tandem mass spectrometry and the pre-treatment strategy (quick, easy, cheap, effective, rugged and safe technique) were optimized for the purpose. The final method performance were evaluated, revealing determination coefficients (R2) of 0.993–0.9999 for the matrix-matched calibration curves, good accuracy (recovery 68–104% and matrix effect 70–123%), satisfactory precision (relative standard deviation <20%) and limits of detection and quantitation in the low ng g−1 levels. Ten different recovery material samples were analyzed, showing contamination by few analytes, mainly antibiotics and estrone; ciprofloxacin and azithromycin were the most abundant compounds (up to 500–600 ng g−1). On the contrary, neonicotinoid pesticides were not detected, except for one sample (sample 10, the only compost material).

Determination of multi-class emerging contaminants in sludge and recovery materials from waste water treatment plants: development of a modified QuEChERS method coupled to LC–MS/MS / Benedetti, Barbara; Majone, Mauro; Cavaliere, Chiara; Montone, Carmela Maria; Fatone, Francesco; Frison, Nicola; Laganà, Aldo; Capriotti, Anna Laura. - In: MICROCHEMICAL JOURNAL. - ISSN 0026-265X. - 155:(2020). [10.1016/j.microc.2020.104732]

Determination of multi-class emerging contaminants in sludge and recovery materials from waste water treatment plants: development of a modified QuEChERS method coupled to LC–MS/MS

Benedetti, Barbara;Majone, Mauro;Cavaliere, Chiara
;
Montone, Carmela Maria;Laganà, Aldo;Capriotti, Anna Laura
2020

Abstract

Recycling and recovering valuable resources from wastewater treatment plants is an important aspect in circular economy. The safe use of sludge and sludge-related products deriving from wastewater treatment strictly depends on their chemical contamination, especially by emerging pollutants. In this work, an analytical method was developed for the determination of a range of selected compounds, included in a recent European watch-list (macrolides, fluoroquinolones, neonicotinoids, carbamates and estrogens), in recovery materials from innovative pilot systems. Both the instrumental analysis by high-performance liquid chromatography-tandem mass spectrometry and the pre-treatment strategy (quick, easy, cheap, effective, rugged and safe technique) were optimized for the purpose. The final method performance were evaluated, revealing determination coefficients (R2) of 0.993–0.9999 for the matrix-matched calibration curves, good accuracy (recovery 68–104% and matrix effect 70–123%), satisfactory precision (relative standard deviation <20%) and limits of detection and quantitation in the low ng g−1 levels. Ten different recovery material samples were analyzed, showing contamination by few analytes, mainly antibiotics and estrone; ciprofloxacin and azithromycin were the most abundant compounds (up to 500–600 ng g−1). On the contrary, neonicotinoid pesticides were not detected, except for one sample (sample 10, the only compost material).
sewage sludge; emerging contaminants; wastewater treatment plant; analytical method optimization
01 Pubblicazione su rivista::01a Articolo in rivista
Determination of multi-class emerging contaminants in sludge and recovery materials from waste water treatment plants: development of a modified QuEChERS method coupled to LC–MS/MS / Benedetti, Barbara; Majone, Mauro; Cavaliere, Chiara; Montone, Carmela Maria; Fatone, Francesco; Frison, Nicola; Laganà, Aldo; Capriotti, Anna Laura. - In: MICROCHEMICAL JOURNAL. - ISSN 0026-265X. - 155:(2020). [10.1016/j.microc.2020.104732]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1366944
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