Skip to Main content Skip to Navigation
Journal articles

Une méthodologie couplant mesures géophysiques et ponctuelles afin d'estimer la perméabilité d'un site destiné à l'infiltration d'eau usée traitée

Abstract : When water cannot be discharged to superficial water body or the discharge volume needs to be limited, treated wastewater downstream a treatment plant can be infiltrated. Operational and environmental challenges emerge from this practice: how to size infiltration facilities and what will be the impact of the treated wastewater on groundwater quality? Preliminary studies are recommended for soil-based constructed wetlands and compulsory when permanent infiltration is needed. Unfortunately there is no guideline on how to deal with spatial heterogeneity of soil properties. They can greatly influence water pathway in the soil and the quantities of treated wastewater that can infiltrate. The aim of this article is to introduce a methodology that associates geophysical measurements and more localized ones in order to better described the near-surface with a particular focus on field saturated hydraulic conductivity. Starting from the fastest and coarsest method, the suggested hierarchical process allows optimizing the sampling strategies for longer and more accurate measurements. Therefore, such a methodology, while increasing the quality of results, may also reduce the time and cost of preliminary studies. Two applications are presented demonstrating the advantages of associating several methods. They also underline the input of using geophysical methods on soil that have been largely modified by human activity.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-01765881
Contributor : Revue Dst <>
Submitted on : Friday, May 7, 2021 - 9:02:55 AM
Last modification on : Monday, June 21, 2021 - 11:34:02 AM

File

dst_74_2017_01_forquet.pdf
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

S. Bisone, R. Clement, N. Forquet. Une méthodologie couplant mesures géophysiques et ponctuelles afin d'estimer la perméabilité d'un site destiné à l'infiltration d'eau usée traitée. Déchets Sciences et Techniques, INSA de Lyon 2017, 74, pp.1-11. ⟨10.4267/dechets-sciences-techniques.3602⟩. ⟨hal-01765881v2⟩

Share

Metrics

Record views

27

Files downloads

18