  The percentage removal of phenol from aqueous solution by emulsion liquid
membrane and emulsion leakage was investigated experimentally for various
parameters such as membrane:internal phase ratio, membrane:external phase
ratio, emulsification speed, emulsification time, carrier concentration,
surfactant concentration and internal agent concentration. These parameters
strongly influence the percentage removal of phenol and emulsion leakage. Under
optimum membrane properties, the percentage removal of phenol was as high as
98.33%, with emulsion leakage of 1.25%. It was also found that the necessity of
carrier for enhancing phenol removal was strongly dependent on the internal
agent concentration.
