Impact of Wastewaters on the Physico-Chemical Quality of Waters： Case Study of the Rhumel River, Hammam Grouz and Beni Haroun Dams

The primary objective of this study is to evaluate the physico-chemical qualities and the organic pollution of two dams--Hammam Grouz and Beni-Haroun, as well as that of Rhumel river. The latter, which feeds the dams is an important water source in the geographical region of the Constantinois. The presence of the stations of filtration and purification has not been sufficient to minimize the effect of the waste discharges released from various agglomerations. Five site points were selected in strategic locations where samples have been collected monthly during 2009. Multiple physico-chemical assessments have been conducted. The parameters determined have revealed that the quality of waters for the two dams is fair. The level of organic pollution is more pronounced in the waters of Hammam Grouz dam compared to that of Beni Haroun. This may be attributed to animal debris--very important organic content, which is a characteristic of the peripheral waters of the first dam （Hammam Grouz）. On the other hand, the waters of the Rhumel river were assessed of mediocre quality, reflecting the presence of organic pollution.