JOULIAN , Catherine

Inoculation of selected bacterial strains in aquatic sediment in order to decrease their volume and organic matter content has been proposed as an alternative to classical dredging. Whereas increasingly applied, this type of in-situ biotreatment was not entirely studied in terms of environmental impacts, such as influence on biodiversity and...

Harbour and marina sediments represent particular environments, with high concentrations in organic carbon and pollutants. Over 50 million m3 of marine sediments are dredged every year in French maritime and commercial ports, to maintain the water depth suitable for navigation, and the most part of them is discharged in deeper sea zones. The...

A recent evaluation of the potential impact of arsenic on human health revealed high concentrations of arsenic in marine sediments of the South Marseille littoral. The marine cycle of arsenic is well described in the water column, from dissolved species to phytoplankton, zooplankton and more complex organisms. In contrast, only scarce data are...

The management of polluted sediments is problematic because to date no economically suitable process allows the complete and durable stabilization of pollutants. Some marine sediment contains arsenic at concentrations far higher than the limit that imposes a specific treatment to reduce their toxicity. The aim of ASEDMAR project...