Abstract: The world is facing scarcity in water resources due to various reasons. Irrigation consumes about 86% of the water withdrawal in Egypt which means less water for the domestic and other sectors usage. Thus, treatment of turbid wastewater as sewage water should be done to decrease the amount of the pure water used in irrigation. The presented project reviews a wastewater treatment technology that involves cactus of the species OFI (Opuntia ficus-indica).