This study aimed to investigate the effect of feed concentration (40-100g/l at four levels), transmembrane pressure (1.0-2.0 MPa at five levels) and temperature (30-50°C at three levels) on the recovery of useable brine from waste brine by using polyamide tubular nanofiltration membrane in order to saving on both salt and water consumption for ion-exchange regeneration process. The trials display satisfactory qualitative performance for the removal of colorant from the resin regeneration waste and recovery of salts for reuse. A 77% reduction in salt consumption, a 90% reduction in water consumption and remove of >99% of colorant were achieved in this study. The rejection of sodium chloride was found to be between 15% and 37%, which the highest rejection obtained at 40g/l, 2.0MPa and 30°C. The rejection of sodium chloride declined with increase of the feed concentration and temperature, whereas it was increased with increase in transmembrane pressure. The permeate flux was stable during the whole nanofiltration process, while it was decreased with increasing the feed concentration and increased with the temperature and pressure. The stable flux, high rejection of colorant and high NaCl recovery show that polyamide NF membrane is a very promising method of treatment for this type of waste brine. Furthermore, the NF process was lowered greatly the volume of effluent (90%) for disposal

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