Long term monitoring of sewer sediment accumulation and flushing experiments in a man-entry sewer

J. Bertrand-Krajewski, J. P. Bardin & C. Gibello
The paper presents continuous field experiments carried out during 4 years in a man-entry egg-shape combined sewer in Lyon, France in order to contribute to the knowledge and the modelling of: i) sediment accumulation and ii) sediment removal by means of a Hydrass flushing gate. The 250 \302\265m sediments are mainly mineral, and their physical and chemical characteristics appear as rather stable in time and space. Long-term sediment monitoring reveals: i) a regular asymptotic increase...
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