Modeling of chlorinated solvents transport and natural attenuation in groundwater

Fabrice Quiot (1) , Claire Rollin (1) , Olivier Bour (1) , Salvador Jordana (2) , Eduardo Ruiz (2) , Jordi Guimera (2) , Jean Schwartz (3) , Patrick Goblet (4)

1 INERIS - Institut National de l'Environnement Industriel et des Risques
2 ENVIROS
3 ANTEA
4 CIG - Centre d'Informatique Géologique

The objective of this study is to test differents modeling approaches and the reliability of the codes used in water risk assessment for a site contaminated with chlorinated solvents. The final goal is to elaborate, within the framework of the TRANSPOL research program, a guideline that could be used as a scientist support for contaminated aquifers management. The models performed by 4 teams (ANTEA, ENSMP, ENVIROS and INERIS) to simulate a contamination of groundwater by perchloroethene were compared. The total amount of perchloroethene discharged into the aquifer was unknown and a simplified conceptual model was considered. A first synthesis of the results obtained shows two principal difficulties : evaluate source concentration and simulate natural attenuation phenomenon (sorption/degradation). More accurate diagnosis is needed in order to reduce the uncertainties of model parameters.

Domaines: Sciences de l'environnement

Fabrice Quiot, Claire Rollin, Olivier Bour, Salvador Jordana, Eduardo Ruiz, et al.. Modeling of chlorinated solvents transport and natural attenuation in groundwater. Colloque International "Gestion des grands aquifères", May 2006, Dijon, France. pp.9. ⟨ineris-00972535⟩