T HE PRESENT study focuses on the efficiency of a suggested innovative system for the treatment of the sand filter backwashing water (SFBW) in the Drinking water treatment plant (DWTP).Usually, the DWTP is consumes between 15 to 20% of their clean treated drinking water to backwashing their sand filter.Such sand filter backwashing water (SFBW) is, usually, discharged as waste.Presently, the sugges...