Numerical and experimental investigations of the pollutant distribution in sewers

Controlling flow and pollutant discharges through sewer networks is required for a number of reasons. In order to accomplish such control, precise knowledge of the hydrodynamic conditions of each candidate measurement location proves critical. The Laboratoire Central dos Ponts et Chaussés has thus become involved in an experimental program on velocity and suspended matter concentration fields. This paper first presents the measurement methods and experimental results obtained before providing and discussing some of the numerical results.