(Polyphenyl Sulfone - Polyether Sulfone) Blending to Performance Flat Sheet Membrane to Remove Some Heavy and Radioactive Elements from Phosphogypsum Waste


In this research, the traditional version of the phase inversion method wasused to fabricate a flat sheet of a blended membrane. The method wasinvolved using a polymer that blends polyether sulfone (PES) variedproportions (0,3,4 and 5 wt.%), and polyphenyl sulfone (PPSU) was20wt%. It was found that with the addition of PES, the membraneproperties increased, the best properties were with 4%wt. The ratio waschosen PES 4wt% to study the effect of time, temperature, and pressure onthe rejection of heavy and radioactive elements. The increase in theporosity was with the addition of 4% PES. The rejection of heavy andradioactive elements for thUF membrane increases with increasing of theoperating pressure and time. While by increasing the temperature, therejection of heavy and radioactive elements for thUF membranedecreased. The rejection of K, Th, and Pb are higher than other elements,the order of the rejection is K˃Th˃Pb˃U˃Cd˃Zn˃Cu>Ni