Environmental Management of Siah-Rud River and Economic Analysis on Sewage Purification

Considering the water scarcity in Iran and the importance of environmental protection, it is approperiate to investigate the \ environmental management of Siah-Rud river. It is a small river being utilized as discharge channel by factories located in the vicinity of the river. The physico-chemical characteristics of river water at 10 different sampling locations 'along with coefficient of aeration (K1, Kd), and self purification of the river were determined. Using a linear computer programme, an optimization-model for the minimum treatment efficiency at each pollutant source, along with dissolved oxygen and BOD, in the course of river was developed