Elsevier

Journal of Membrane Science

Volume 96, Issue 3, 12 December 1994, Pages 193-203
Journal of Membrane Science

Application of batch ultrafiltration to the separation of W/O emulsions in liquid surfactant membrane processes

https://doi.org/10.1016/0376-7388(94)00121-9Get rights and content

Abstract

In this paper, the effect of various operating parameters and conditions for emulsion formulation on flux and rejection was investigated in the ultrafiltration (UF) of W/O/W double emulsions. It was found that the viscosity of W/O/W double emulsions played an important role in UF flux. The membrane fouling behavior was observed and analyzed using the concept of a modified fouling index. Under the conditions studied, the total organic content rejection was higher than 0.95 equivalent to 100 to 400 ppm and UF flux normally reached about 60% of pure water flux. In addition, the fouled cellulosic membranes could be easily cleaned. The present study demonstrated that the application of UF to the separation of W/O emulsions from external phase would be incentive in liquid surfactant membrane processes.

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