| Numéro |
La Houille Blanche
Numéro 8, Décembre 2001
|
|
|---|---|---|
| Page(s) | 82 - 86 | |
| DOI | https://doi.org/10.1051/lhb/2001096 | |
| Publié en ligne | 1 juillet 2009 | |
Impact environnemental de la mise en dépôt en eau de matériaux de dragage (cas du bassin de la Seine)
Environmental impact of laying in water dredged sediment
1
CEREVE, Créteil, Université Paris XII, Val de Marne, 61 avenue du Général de Gaulle, 94010 Créteil Cedex
2
Services de Navigation de la Seine
Auteur de correspondance : scarpentier@univ-paris12.fr
Abstract
Dredging rivers is needed in order to maintain sufficient sailing depths or prevent settling areas. In the case of the Seine Basin (Paris region, France), dredged sediments are stored in gravel quarries under 2 to 8 meters of water. This project focuses on the possible mobilisation of pollutants during the deposit of dredged urban sediments. In fact, French legislation does not mention dredged sediments as far as rivers are concerned and the management of thse materials is complicated due to this lack of specific regulation. The possible mobilisation of pollutants due to the deposition of dredged materials is studied on the site Rouillard (Verneuil sur Seine, 78, France). Monthly, water from the site was sampled and the impact of pollutants mobilisation on the environment was assessed.
© Société Hydrotechnique de France, 2001