Conception d'une station d'epuration des rejets liquides de la zone industrielle (w. Bordj Bou Arreridj)

Abstract

The discharges of wastewater from the industrial zone of the city of Bordj Bou Arreridj without prior treatment poses a serious threat to the environment and the public health, for which a wastewater treatment plant design has been proposed to limit the risks and use it for irrigation. The treatment techniques used include pre-treatment of the effluent, a physico-chemical treat-ment by coagulation-flocculation and physical decantation, a secondary treatment by the tech-nique of an immersed membrane bioreactor with an upstream anoxia basin and finally a treat-ment of the sludge produced by thickening, anaerobic digestion and band filtrs