Separation of aqueous salt solution by pervaporation through hybrid organic-inorganic membrane: Effect of operating conditions

► A synthesised hybrid PVA/MA/silica membrane was tested for separation of aqueous salt solution. ► The activation energy of permeation was calculated from the Arrhenius relationship. ► The salt rejection remained high (up to 99.9%) under all investigated operating conditions. ► A high water flux of 11.7 kg/m2 h could be achieved at a feed temperature of 65 °C and a vacuum of 6 Torr.