Phenol removal from aqueous solution through hollow fiber membrane extraction

Zn this work, mass transfer mechanism was studied for 50%TBP (in kerosene)- phenol-water as the working system in different hydrophobic microporous hol low fiber modules. The effect of different operating conditions on the remo val of phenol was analyzed. Solvent entrainment in this process was detecte d with MALVERN-2600 laser pellet diameter analytical equipment. Experimenta l results indicate the mass transfer coefficient is increased while the two phase how rates are increased. With increases in the flow rate of the wate r phase, the removal ratio of phenol will be decreased. Highly effective re moval of phenol could be reached by changing; the experimental conditions a nd the module configuration. The solvent entrainment in the water phase in the membrane extraction process was found to be 5%-8% of that in convention al liquid-liquid extraction process. Thus, solvent pollution could be bette r controlled.