Caractéristiques des dépôts en réseau d'assainissement unitaire. Conséquences sur leur transport

Characteristics of deposits in combined sewers. Consequences on their transport

Institut für Siedlungswasserbau, Universität Stuttgart

Abstract

Deposits in combined sewers are constiluted with sand particles from the streets and with organic domestic waste. Despile its small amount, this organic matter has a big influence on the deposit transport. It produces with the smaller silt particles a cohesive mixture that as the same mechanical properties as ton. This mixture binds the sand particles among themselves and increases their erosion strength. As many additional parameters that complicate the study of its transport and its modelisation.