Physico-Chemical and Bacteriological Evaluation of the Activated Sludge Wastewater Treatment Plant in Kenitra City, Morocco

Wastewater from the Kenitra wastewater treatment plant WWTP in the Gharb region of Morocco, treated using the activated sludge process, was analyzed to assess the effectiveness of the treatment in protecting both the receiving water body, Oued Sebou, and the regional water table. The objective of this study is to perform a physico-chemical and bacteriological analysis of the treated wastewater. Sampling was conducted at two points: the inlet and outlet of the WWTP. The results show that the treated water has a slightly alkaline pH (7.8–8.2) and demonstrates satisfactory treatment efficiency. The removal rates for COD, BOD₅, and suspended solids (SS) were 61.81%, 94.75%, and 96.62%, respectively. The plant also exhibited high effectiveness in reducing bacteriological indicators, including total coliforms, fecal coliforms, and streptococci.