The removal of Cd2+,Cu2+ and Ni2+ from aqueous solution via micellar-enhanced ultrafiltration and the effect of salts on metal removal were studied with anionic surfactant sodium dodecyl sulfate.The micelle sizes were determined by dynamic light scattering measurements.The results show that the micelle sizes and aggregation numbers of micelle decrease with the increase of surfactant concentration but increase with the increase of NaCl concentration.When the concentration of surfactant to metal ions in singl...