Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Mesocosm Experiments at a Tunnelling Construction Site for Assessing Re-Use of Spoil Material as a By-Product |
| Abstract | Mechanized excavation of tunnels with Earth Pressure Balance-Tunnel Boring Machines requires the use of foaming agents. The latter contain the anionic surfactant sodium lauryl ether sulphate (SLES) as the main compound. The re-use as a by-product of excavated soil containing foaming agents (spoil material) can pose a risk for soil and particularly for aquatic ecosystems if they are close to the spoil material final destination site. This work reports the chemical results (SLES residual concentrations) and ecotoxicological effects (battery of five tests) of 28 day-mesocosm studies performed at a tunnelling construction site. The soil mesocosms were set up with two different lithologies, which contained four different foaming agent products at the highest amounts used for excavation. The decrease in SLES concentrations and the ecotoxicological tests were performed in soil and its water extract (elutriate) at different times (0, 7, 14, 28 d). Elutriates were prepared in order to simulate a possible SLES leaching from soil to water. The results showed a decrease in SLES over time and different ecotoxicological responses depending not only on the initial amount of each product, but also on the soil lithology and organism tested (aquatic or terrestrial). This study showed how only site-specific ecotoxicological evaluations can ensure a safe management of the spoil material, making possible the re-use of soil and avoiding production of waste. |
| Source | Water (Basel) 13 (2) |
| Keywords | SLESenvironmental compatibilitysite-specific protocolVibrio fischeriDanio rerioEisenia fetidaLepidium sativumtoxicity test battery integrated index |
| Journal | Water (Basel) |
| Editor | Molecular Diversity Preservation International, Basel, |
| Year | 2021 |
| Type | Articolo in rivista |
| DOI | 10.3390/w13020161 |
| Authors | Barra Caracciolo, Anna; Grenni, Paola; Mariani, Livia; Rauseo, Jasmin; Di Lenola, Martina; Muzzini, Valerio Giorgio; Donati, Enrica; Lacchetti, Ines; Gucci, Paola Margherita Bianca; Finizio, Antonio; Beccaloni, Eleonora; Patrolecco, Luisa |
| Text | 444785 2021 10.3390/w13020161 ISI Web of Science WOS 000611734400001 SLES environmental compatibility site specific protocol Vibrio fischeri Danio rerio Eisenia fetida Lepidium sativum toxicity test battery integrated index Mesocosm Experiments at a Tunnelling Construction Site for Assessing Re Use of Spoil Material as a By Product Barra Caracciolo, Anna; Grenni, Paola; Mariani, Livia; Rauseo, Jasmin; Di Lenola, Martina; Muzzini, Valerio Giorgio; Donati, Enrica; Lacchetti, Ines; Gucci, Paola Margherita Bianca; Finizio, Antonio; Beccaloni, Eleonora; Patrolecco, Luisa Natl Res Council CNR IRSA; Natl Res Council CNR ISP; Natl Res Council IRET CNR; Natl Res Council ISB CNR; Italian Inst Hlth ISS; Univ Milano Bicocca Mechanized excavation of tunnels with Earth Pressure Balance Tunnel Boring Machines requires the use of foaming agents. The latter contain the anionic surfactant sodium lauryl ether sulphate SLES as the main compound. The re use as a by product of excavated soil containing foaming agents spoil material can pose a risk for soil and particularly for aquatic ecosystems if they are close to the spoil material final destination site. This work reports the chemical results SLES residual concentrations and ecotoxicological effects battery of five tests of 28 day mesocosm studies performed at a tunnelling construction site. The soil mesocosms were set up with two different lithologies, which contained four different foaming agent products at the highest amounts used for excavation. The decrease in SLES concentrations and the ecotoxicological tests were performed in soil and its water extract elutriate at different times 0, 7, 14, 28 d . Elutriates were prepared in order to simulate a possible SLES leaching from soil to water. The results showed a decrease in SLES over time and different ecotoxicological responses depending not only on the initial amount of each product, but also on the soil lithology and organism tested aquatic or terrestrial . This study showed how only site specific ecotoxicological evaluations can ensure a safe management of the spoil material, making possible the re use of soil and avoiding production of waste. 13 Published version 08/01/2021 Mesocosm Experiments at a Tunnelling Construction Site for Assessing Re Use of Spoil Material as a By Product pdf pubblicazione WaterMesocosmi2021_13 00161 v2.pdf Articolo in rivista Molecular Diversity Preservation International 2073 4441 Water Basel Water Basel Water Basel Water. Basel jasmin.rauseo RAUSEO JASMIN DI LENOLA MARTINA MARIANI LIVIA luisa.patrolecco PATROLECCO LUISA anna.barracaracciolo BARRA CARACCIOLO ANNA paola.grenni GRENNI PAOLA enrica.donati DONATI ENRICA valeriogiorgio.muzzini MUZZINI VALERIO GIORGIO DTA.AD002.284.001 Attivita tecnico scientifiche per la caratterizzazione ecotossicologica in corso dopera dei materiali da scavo Galleria Santa Lucia |