Effect of Rheological Properties on Mass Transfer of Cr(VI) Through a Supported Liquid Membrane with Non‐Newtonian Liquid

Abstract

Cr(VI) was transported using a non‐Newtonian polyisobutylene liquid supported by microporous polytetrafluoethylene polymer. The effects of viscosity and viscoelasticity of toluene solution of polybutene and polyisobutylene on the membrane side‐mass transfer coefficient of Cr(VI) have been investigated. The elasticity, considered in the form of Weisenberg number, was used to present unified correlations for mass transfer coefficients in Newtonian as well as non‐Newtonian liquid.

Keywords:

• Hexavalent chromium
• Viscoelasticity
• Supported liquid membrane
• Mass transfer coefficient

Acknowledgment

This study was supported by the Basic Research Program of the Korea Science and Engineering Foundation through the Applied Rheology Center, Brain Korea 21 and Brain Busan 21.