REMOVAL OF PHENOLS FROM WASTE-WATER USING LIQUID MEMBRANES IN A MICROPOROUS HOLLOW FIBER-MEMBRANE EXTRACTOR

This paper reports experimental data on the removal of phenol from aqu eous solutions using emulsion liquid membranes in a microporous hollow -fiber extractor. The hollow-fiber extractor appears to offer signific ant advantages over conventional liquid-liquid contactors for this sep aration because emulsion leakage and swell are practically eliminated even when treating high phenolic feeds. The overall mass-transfer coef ficients are seen to be more strongly dependent on the phase flow rate s among the parameters studied. The experimental mass-transfer coeffic ients have been predicted by a resistance-in-series model.