Transport of textile dye in vegetable oils based supported liquid membrane

A laboratory study on supported liquid membrane (SLM) system has been investigated for removal and recovery of textile dye from the aqueous solution using renewable, non-toxic, natural vegetable oils, never used before as a liquid membrane. A flat sheet polypropylene (PP) supported Teflon membrane impregnated with vegetable oils has been tested for transport of Astacryl golden yellow a cationic dye. The fundamental parameters influencing the transport of dye such as pH in the feed solution, H2SO4 concentration in the strip solution and different type of oils, stirring speed, initial dye concentrations have been determined. At the end, stability of membrane was checked. (c) 2005 Elsevier Ltd. All rights reserved.