In this study, the feasibility of Forward–Reverse osmosis processes was investigated for treating oily wastewater. The first stage applied forward process to recover pure water from Sodium chloride (NaCl) and magnesium (MgCl2) salts were used as draw solutions membrane that in (FO) cellulose triacetate (CTA) membrane. operating parameters studied were: solution concentrations (0.25 – 0.75 M), o...