Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Site-specific protocols for evaluating environmental compatibility of spoil materials produced by EPB-TBMs |
| Abstract | The EPB-TBM performance relies on the selection of the appropriate conditioning additives. The anionic surfactant sodium lauryl ether sulphate (SLES) is the main component of several foaming agents. Consequently, tunneling spoil material can contain SLES residual concentrations. Owing to the lack of SLES threshold limits in soil in both European and Italian legislation, it is necessary to apply an ecological approach to produce a site-specific Protocol to be used during the excavation phase for classifying spoil material as a by-product. The approach includes: preliminary environmental risk assessment based on the ecotoxicity of each compound inside the conditioning additives; microcosm/mesocosms studies for evaluating the SLES biodegradability in the spoil materials during their temporary deposit and, finally, the evaluation of the potential ecotoxicity on test organisms selected on the basis of the possible scenarios of soil and water exposure to SLES residual concentrations in the final destination site. |
| Source | World Tunnel Congress (WTC 2019), Naples (Italy), 03-09/05/2019 |
| Keywords | anionic surfactant sodium lauryl ether sulphatefoaming agentsSLES biodegradability |
| Year | 2019 |
| Type | Contributo in atti di convegno |
| DOI | 10.1201/9780429424441 |
| Authors | Grenni P, Patrolecco L, Barra Caracciolo A |
| Text | 402553 2019 10.1201/9780429424441 anionic surfactant sodium lauryl ether sulphate foaming agents SLES biodegradability Site specific protocols for evaluating environmental compatibility of spoil materials produced by EPB TBMs Grenni P, Patrolecco L, Barra Caracciolo A IRSA CNR; ISP CNR The EPB TBM performance relies on the selection of the appropriate conditioning additives. The anionic surfactant sodium lauryl ether sulphate SLES is the main component of several foaming agents. Consequently, tunneling spoil material can contain SLES residual concentrations. Owing to the lack of SLES threshold limits in soil in both European and Italian legislation, it is necessary to apply an ecological approach to produce a site specific Protocol to be used during the excavation phase for classifying spoil material as a by product. The approach includes preliminary environmental risk assessment based on the ecotoxicity of each compound inside the conditioning additives; microcosm/mesocosms studies for evaluating the SLES biodegradability in the spoil materials during their temporary deposit and, finally, the evaluation of the potential ecotoxicity on test organisms selected on the basis of the possible scenarios of soil and water exposure to SLES residual concentrations in the final destination site. Tunnels and Underground Cities Engineering and Innovation meet Archaeology, Architecture and Art. Proceedings of the WTC 2019 ITA AITES Daniele Peila, Giulia Viggiani, Tarcisio Celestino 9780429424441 Published version https //doi.org/10.1201/9780429424441 World Tunnel Congress WTC 2019 Naples Italy 03 09/05/2019 Internazionale Contributo Contributo ch038.pdf Contributo in atti di convegno luisa.patrolecco PATROLECCO LUISA anna.barracaracciolo BARRA CARACCIOLO ANNA paola.grenni GRENNI PAOLA TA.P04.005.011 Vulnerabilita degli ecosistemi delle acque sotterranee e attenuazione naturale degli inquinanti nel suolo e nel sottosuolo |