Effect of shear rate on the performance of nanofiltration membrane in the removal of ammonium ion

Abstract

Excessive ammonia in aquaculture wastewater may cause many environmental problems to the receiving water. Such adverse effects of ammonium have promoted developing various techniques for its removal. Membrane separation processes are largely developed as an alternative to conventional wastewater treatment. In order to fabricate a high performance of nanofiltration membrane, the effect of shear rate on the membrane performance for aquaculture wastewater treatment has been studied. Membrane casting solution was prepared in binary system which consists of Polyethersulfone (PES) as polymer and N-methyl-2-pyrrolidone (NMP) as solvent with formulation 16/84 (PES/NMP).