Micellar-enhanced ultrafiltration for removal of reactive dyes from an aqueous solution

Micellar-enhanced ultrafiltration (MEUF) was studied to remove reactive dyes from aqueous solution. Two different types of reactive dyes, C.I Reactive Black 5 (RB5) and C.I Reactive Orange 16 (RO16) were tested. A cationic surfactant, cetylpyridinium chloride (CPC) was used for the MEUF and its effectiveness was investigated. The effect of surfactant concentration and transmembrane pressure (TMP) was investigated. The result shows that the highest dye rejections for RB5 and RO16 dyes were 99.7% and 99.6% for 1.000 g/L CPC and 0.050 g/L dye concentration, respectively.