Modélisation des flux polluants en hydrologie urbaine : évolutions depuis les années 1960 et perspectives pour les années 2000

Modelling of pollutant loads in urban drainage : evolution since the 1960s and trends for the 2000s.

INSA de Lyon

Abstract

This paper describes briefly the evolution of pollulant loads models applied to sewer systems since their origin in the late 1960s. As a systemic and integrated approach of the urban water cycle and of the pollutants it transfers is necessary, the pollutant loads models should deal with the following three components : sewer systems, wastewater treatment plants (WWTPs) and receiving waters. However, the lack of compatibility between the variables and the diversity of the time and space scales of the phenomena involved in each component model is a strong obstacle to their joint use within the frame of integrated dynamic models. Some perspectives are drawn for both scientific and operational purposes.