COMBINED SEWER OVERFLOWS INTO THE CRATI RIVER (COSENZA, ITALY) AND RETENTION STORAGE SIZING

摘要

It is well known that combined sewers are commonly used in urban drainage and that combined sewer overflows (CSOs) represent an environmental risk to receiving bodies [25]. In dry weather, control of the network operation is possible, whilst in wet weather combined sewer overflow structures represent safety valves of the sewer system, and for this reason they represent a preferred path for excess flows causing pollution of receiving water pollution [35].