Abstract
Production anti-scorpion serum fraction requires washing water containing important quantities of (NH4)2SO4. This study presents a combination of the ultrafiltration and the electrodialysis to recover this salt. The application of ceramic ultrafiltration membrane has helped to reduce pollution due to organic matter by completely retained the proteins with an apparent rejection coefficient close to unity. The optimum hydrodynamic parameters such as the average transmembrane pressure and tangential flow rate were determined for ultrafiltration cell. The combination of the UF with the ED allowed concentrating the NH4SO4 salt with a recovery yield of about 74%.
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