La Houille Blanche
Number 3-4, Juin 1990
|Page(s)||273 - 278|
|Published online||01 October 2009|
Modélisation du transport dissous et particulaire dans l'estuaire de Morlaix. Application au devenir des bactéries entériques
Modelling dissolved and particulate contaminants transport in the Morlaix estuary. Application to enteric bacteria discharge
IFREMER, Centre de Brest, B.P. 70, 29280 Plouzané
2 UER des Sciences Médicales et Pharmaceutiques, avenue du Professeur L.-Bernard, 35043 Rennes Cedex
Modelling dissolved and particulate contaminants transport in the Morlaix estuary. Application to enteric bacteria discharge. Dissolved contaminants and cohesive sediment transport models have been developped and applied to a macrotidal estuary. These models are original as several dissolved and particulate constituents can be simultaneously computed, the later being followed in the surficial sediment according to the deposition events. Resides laboratory and field experiments have been conducted in order to evaluate the survival of enteric bacteria both within the sediment and the water body. Showing off rather long survival times especially in the sediment, the results have been introduced in the models in order to simulate the impact of urban disposal on water quality in a shellfishing area.
© Société Hydrotechnique de France, 1990
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