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A Vision-Based Tool for the Control of Hydraulic Structures in Sewer System

L. Nguyen, D. Sage, S. Kayal, D. Jeanbourquin, L. Rossi

European Geosciences Union General Assembly 2009, Wien, Republic of Austria, April 19-24, 2009.



During rain events, the total amount of the wastewater/storm-water mixture cannot be treated in the wastewater treatment plant; the overflowed water goes directly into the environment (lakes, rivers, streams) via devices called combined sewers overflows (CSOs). This water is untreated and is recognized as an important source of pollution. In most cases, the quantity of overflowed water is unknown due to high hydraulic turbulences during rain events; this quantity is often significant. For this reason, the monitoring of the water flow and the water level is of crucial environmental importance.


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