FACILITATED TRANSPORT THROUGH LIQUID SURFACTANT MEMBRANE - ANALYSIS OF BREAKAGE MODEL

A mathematical model for analyzing the experimental data of extraction of weak acid from aqueous solution by liquid surfactant membrane (LSM ) using a strong base as internal reagent present in excess in a batch system has been presented. The leakage of internal phase due to membr ane breakage is also discussed in the mathematical treatment. The mode l while considering a reaction front to exist within the emulsion glob ule assumes reaction equilibrium between the solute and internal reage nt in the external continuous phase. The proposed model predicts succe ssfully the experimental results of extraction of a weak acid by a str ong base in a batch separation system as presented in the literature. The model is also capable of predicting excellently the experimental p H versus time data in case of the above system.