Évaluation de l’efficacité du traitement des eaux usées de la station d’épuration d’Aïn Oulmène (Sétif)

Abstract

Water is an essential natural resource whose preservation requires effective wastewater management. In this context, the present study was conducted at the Aïn Oulmène Wastewater Treatment Plant (WWTP) to evaluate the efficiency of wastewater treatment processes and the quality of treated effluents. Several physicochemical parameters were analyzed, including pH, temperature, electrical conductivity, dissolved oxygen, COD, BOD5, suspended solids, ammonium, nitrites, nitrates, and phosphates, in addition to microbiological analyses. The obtained results revealed a significant reduction in pollutant loads after treatment, indicating a satisfactory purification efficiency of the plant. The treated wastewater generally complied with the applicable discharge standards, confirming the effectiveness of the activated sludge process used at the station. This study highlights the important role of wastewater treatment plants in environmental protection and sustainable water resource management.