Impact environnemental de la mise en dépôt en eau de matériaux de dragage (cas du bassin de la Seine)

Effects of a physico-chemical treatment of a dredged sediment on its ecotoxicity after discharge in laboratory gravel pit microcosms

“…Most sediments are simply stored on soils and exposed to rain precipitations, which generates a production of percolates with impacts on soil ecosystems, groundwater as well as surface aquatic ecosystems [5,6]. Other modes of disposal are sometimes used, such as disposal of dredged sediments in submerged gravel pits [7][8][9]. Important quantities of dredged sediments might also be valorized for the building of dikes and banks in rivers, canals and lakes.…”