Investigation of Stabilized Emulsion by Polymer and Its Effect on the Extraction of Phenol from Aqueous Solution by Emulsion Liquid Membrane

Document Type : Research Article


1 Membrane Processes Research Laboratory (MPRL), Department of Petrochemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Mahshahr Campus, P.O. Box 415 Mahshahr, I.R. IRAN

2 Department of Chemical Engineering, Amirkabir University of Technology, Tehran, I.R. IRAN


In the present study, phenol removal from aqueous solutions using stabilized emulsion liquid membrane by polymer has been studied. For this purpose, the initial emulsion liquid membrane was stabilized by addition of a proper polymeric solution and then it was dispersed in an external phase containing phenol. In addition to the stability of the membrance, the effect of various parameters such as temperature, stirring speed, internal phase concentrarion, the ratio of the phases and pH of the external phase, which affects on the stability of the globules, were studied. The most stable membrane was obtained by addition of 3 wt.% of PIB to the primary emulsion at 30 °C and 210 rpm. The stability time was increased from 10 to 35 minutes that was very stuitable for this extraction. The results showed that the extraction efficiency is increased by increase in the ratio of the phases (Row), internal reagent concentration and acidity of the external phase. Under such condition, more than 94% of the initial phenol from a 100 ppm feed solution was extracted within 35 minutes.


Main Subjects

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