Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Biological degradation of UV-filters in marine sediments: A laboratory microcosm study |
| Abstract | The biodegradation potential of marine sediments towards two selected UV-filters was tested through a laboratory investigation. Sediments collected from two locations in Italy were spiked with 3-(4-methylbenzylidene)camphor (4-MBC) and 2-ethylhexyl 4-(dimethylamino)benzoate (EH-DPAB), and used to set up eight microcosms that were operated under either aerobic or anaerobic conditions. UV-filters concentration in the sediment was monitored over 360 days. Results showed that native microbial communities of both sediments were able to perform the complete removal of EH-DPAB, whereas 4-MBC was scarcely affected by biodegradation. Degradation kinetics of EH-DPAB was first-order, with kinetic rate constants around 0.02 d-1 for both sediments under both aerobic and anaerobic conditions. Microbiological characterisation of microcosms showed that the composition and structure of the sediment microbial communities changed after the different treatments with respect to the native microbial population. |
| Source | AquaConSoil 2015 - Sustainable use and management of soil, sediment and water resources, Copenhagen, 9-12 Giugno 2015 |
| Keywords | biodegradationsedimentsUV-filtersemerging contaminantsFluorescence In Situ Hybridization |
| Year | 2015 |
| Type | Contributo in atti di convegno |
| Authors | Angela Volpe, Michele Pagano, Paola Grenni, Anna Barra Caracciolo, Giuseppe Mascolo G, Simona Rossetti |
| Text | 346980 2015 biodegradation sediments UV filters emerging contaminants Fluorescence In Situ Hybridization Biological degradation of UV filters in marine sediments A laboratory microcosm study Angela Volpe, Michele Pagano, Paola Grenni, Anna Barra Caracciolo, Giuseppe Mascolo G, Simona Rossetti CNR IRSA The biodegradation potential of marine sediments towards two selected UV filters was tested through a laboratory investigation. Sediments collected from two locations in Italy were spiked with 3 4 methylbenzylidene camphor 4 MBC and 2 ethylhexyl 4 dimethylamino benzoate EH DPAB , and used to set up eight microcosms that were operated under either aerobic or anaerobic conditions. UV filters concentration in the sediment was monitored over 360 days. Results showed that native microbial communities of both sediments were able to perform the complete removal of EH DPAB, whereas 4 MBC was scarcely affected by biodegradation. Degradation kinetics of EH DPAB was first order, with kinetic rate constants around 0.02 d 1 for both sediments under both aerobic and anaerobic conditions. Microbiological characterisation of microcosms showed that the composition and structure of the sediment microbial communities changed after the different treatments with respect to the native microbial population. Published version https //conference.ufz.de/frontend/index.php page_id=1964 v=List# AquaConSoil 2015 Sustainable use and management of soil, sediment and water resources Copenhagen 9 12 Giugno 2015 Internazionale Contributo Biological degradation of UV filters in marine sediments A laboratory microcosm study Contributo in atti di convegno, pubblicato online, associato a poster Aquaconsoil_FullPaper_Volpe_4976_Poster.pdf Contributo in atti di convegno simona.rossetti ROSSETTI SIMONA angela.volpe VOLPE ANGELA anna.barracaracciolo BARRA CARACCIOLO ANNA paola.grenni GRENNI PAOLA michele.pagano PAGANO MICHELE giuseppe.mascolo MASCOLO GIUSEPPE TA.P02.002.003 Ruolo di comunita microbiche nella degradazione della sostanza organica e nella circolazione del carbonio nei sistemi acquatici |