EGU2020-11269
https://doi.org/10.5194/egusphere-egu2020-11269
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

INFILTRON package for assessing infiltration & filtration functions of urban soils

Laurent Lassabatere1, Anne-Cécile De Giacomoni2, Rafael Angulo-Jaramillo1, Gislain Lipeme Kouyi3, Matteo Martini4, Cédric Louis5, Pierre-Emmanuel Peyneau6, Veronica Rodriguez-Nava7, Benoit Cournoyer7, Axel Aigle7, Emmanuelle Bergeron7, Jérémie Bonneau3, Sofia Bouarafa1, Yannick Colin7, Paola Concialdi8, Simone Di Prima9, Wessam Galia7, Thanh Huong Lai5, Arthur Marais4, Marjolet Laurence7, and the following co-authors*
Laurent Lassabatere et al.
  • 1ENTPE, University of Lyon LEHNA UMR 5023 CNRS ENTPE UCBL, Vaulx en Velin, France
  • 2Lyon Ingénierie projets, Université de Lyon, Lyon
  • 3Univ Lyon, INSA Lyon, DEEP, Villeurbanne Cedex, F-69621, France
  • 4Univ Lyon Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, Lyon, France
  • 5Nano H SAS, 2 Place de l'Europe, Saint Quentin Fallavier, 38070, France
  • 6GERS-LEE, Univ Gustave Eiffel, IFSTTAR, F-44344 Bouguenais, France
  • 7UMR CNRS 5557, INRA 1418 Ecologie Microbienne, Université Lyon 1, Villeurbanne, France
  • 8Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
  • 9Dipartimento di Agraria, University of Sassari, Viale Italia 39, 07100, Sassari, Italy
  • *A full list of authors appears at the end of the abstract

The extension of urban and peri-urban areas and the related artificialization of soils drastically impacts the water cycle as well as biogeochemical cycles. In particular, the sealing of soils with impervious surfaces such as roads increases runoff and decreases concomitant infiltration. At the catchment scale, more significant amounts of stormwater must be collected and managed to prevent from flooding urban areas and mitigate discharge to the environment. Sustainable Urban Drainage Systems (SUDS) were developed to alleviate these problems. These systems allow the restoration of one of the main functions of urban and peri-urban soils, i.e., infiltrating stormwater. They simultaneously reduce the risk of flooding and increase groundwater recharge. Another essential service must be ensured and optimized: the removal of pollutants from infiltrating water by the soil, to avoid the degradation of the quality of the groundwater.

The INFILTRON project aims to design a methodology for the assessment of infiltration and filtration of pollutants by SUDS. The project is a collaboration of many partners, with expertise in soil physics, urban hydrology, nanoparticle engineering, and modeling, to engineer a specific device for the simultaneous monitoring of water infiltration and pollutant filtration. This infiltration device both infiltrates water and injects nanoparticles (NPs) into the soil. It was sized to account for preferential flow, which is known to have a significant impact on infiltration and pollutant transfer. The engineered NPs were designed to be detectable in the ground using ground-penetrating radar (GPR) and to mimic the transfer of nano-pollutants (emerging pollutants, bacteria, etc.) commonly found in real stormwater. An infiltration-filtration model was developed to interpret the experimental data and to quantify two indicators for the assessment of water infiltration and pollutant filtration. INFILTRON will provide a very interesting toolbox for practitioners and stakeholders for the evaluation of the infiltration and filtration functions of not only SUDS within the framework of stormwater management, but also anthropized soils within the management of urban and peri-urban areas.

following co-authors:

Jérôme Raimbault (6), Vincenzo Bagarello (8), Béatrice Béchet (6), Jean Philippe Bedell (1), Denis Courtier-Murias (6), Tim Fletcher (10), Massimo Iovino (8), Thomas Lenoir (6), Jean M.F. Martins (11), David McCarthy (12), and Thierry Winiarski (1).

How to cite: Lassabatere, L., De Giacomoni, A.-C., Angulo-Jaramillo, R., Lipeme Kouyi, G., Martini, M., Louis, C., Peyneau, P.-E., Rodriguez-Nava, V., Cournoyer, B., Aigle, A., Bergeron, E., Bonneau, J., Bouarafa, S., Colin, Y., Concialdi, P., Di Prima, S., Galia, W., Lai, T. H., Marais, A., and Laurence, M. and the following co-authors: INFILTRON package for assessing infiltration & filtration functions of urban soils, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-11269, https://doi.org/10.5194/egusphere-egu2020-11269, 2020

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