Non-equilibrium thermodynamic analysis of the transport properties of formed-in-place zirconium (IV) hydrous oxide-polyacrylate membranes in lactose-water solutions

✍ Scribed by D. Szaniawska; H.G. Spencer

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 993 KB
• Volume: 95
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/0011-9164(94)00009-3

✦ Synopsis

A non-equilibrium thermodynamic approach to the mass transport through a formed-in-place (i.e., dynamically formed) zirconium (IV) hydrous oxide-polyacrylate membrane in lactose-water solutions is presented. The practical transport coefficients, LPI B, and o, and the phenomenological coefficients, L,,, &, and LIZ, were determined using both linear and non-linear analyses from hyperfiltration measurements using water solutions of lactose. The transport coefficients were used to evaluate the frictional coefficients of a friction model of the membrane process and the transport of the components through the membrane was described in terms of frictional coefficients for the interactions between water and membrane, lactose and membrane, and lactose and water: J'xw, j&, and f*,. The effects of pH and solute concentration on the transport properties of the membrane are discussed.