Etude physicochimique et bactériologique des eaux de la retenue collinaire d’Oued El Athmania Mila-Algérie.

Abstract

The Hammam Grouz dam belongs to the commune Oued Athmania Wilaya de Mila. It was built by an Algerian construction company (Entreprise Nationale de Réalisation des Barrages (E.N.R.B), the water stored in the reservoir is used to irrigate neighbouring agricultural terrains, as well as to water the animals, and soon it may be that water will be used in the diet given the problems of fluctuating precipitation in the region. The overall objective of this study is to assess the water quality of this Dam by carrying out a series of analyses. Water quality was studied through physico-chemical (T°, pH, NH4+, NO2-, NO3-, PO4-3, DCO, O2) and acteriological (total and faecal coliforms, faecal streptococci, ASR and pathogenic germs) analyses. Where have made three with drawls for three months (February, March, and April 2023). The results of the physico-chemical analyses carried out showed that the water of this dam was of good to fair quality for the majority of the analyses, with the exception of slight organic pollution for the DCO and NH4 parameters. For bacteriological results they have revealed a presentation of fecal contamination, as well as the presence of some pathogenic germs such as salmonella and Vibrio Cholériques. According to these results the water of Hammam Grouz Dam presents a slight pollution that required the creation of a treatment plant of the dam water to improve and protect the environment and human health.