To cite this article: Kusumastuti, A. et al. (2018). Emulsion liquid membrane for textile dyes removal: Extraction process. J. Phys. Sci., 29(Supp. 2), 175–184, https://doi.org/10.21315/jps2018.29.s2.13
The minimum facility of wastewater treatment in batik home industry raises an environmental problem. Application of emulsion liquid membrane (ELM) in recovering textile dyes from industrial liquid waste is still an important alternative to solve the problem. Conventional ELM technology has problems of emulsion stability as well as used emulsion breaking. ELM system under Taylor-Couette column (TCC) offers solution for emulsion stability. Emulsion was prepared by using Span 80 as surfactant, kerosene as diluent, and hydrogen chloride as internal phase solution. Real batik industry wastewater was employed as external feed phase solution. Emulsion was produced using ultrasonic probe. The obtained emulsion was then mixed with the external feed solution in TCC. After extraction process, the sample was taken. The raffinate was taken to test final concentration of textile dye. The highest extraction efficiency of 99.4% was obtained from the system composed of external phase pH of 10 and HCl concentration of 0.5 M.