NON-EQUILIBRIUM THERMODYNAMICS OF ELECTRO-OSMOSIS OF WATER THROUGH COMPOSITE CLAY MEMBRANES, 1. THE PARALLEL ARRANGEMENT

Electro-osmosis of water through composite clay membranes consisting of kaolinite and bentonite in parallel arrangement has been studied, and the form of the phenomenological relations for the simultaneous transport of water and electricity worked out. The phenomenological relation for the electrical flux has been found to be the usual linear and homogeneous equation, while the relationship between the water flux and the thermo-dynamic forces has been found to be represented by a non-linear exponential type of relationship. Relationships among the phenomenological coefficients characterizing the parallel arrangement as a whole and its constituent membrane elements have been investigated. The combination rules given by Kedem and Katchalsky have been found to be valid for the phenomenological coefficients representing the streaming current and ordinary electrical conductivity but not in the case of the other two coefficients representing the hydraulic conductivity and the electro-osmotic velocity, for which modifications in the combination rules have been suggested. Study of directional characteristics of the phenomenological coefficents has revealed the isotropic character of the composite parallel clay membrane. /AUTHOR/

  • Corporate Authors:

    North-Holland Publishing Company

    P.O. Box 211
    1000 AE Amsterdam,   Netherlands 
  • Authors:
    • Srivastava, R C
    • Jain, A K
  • Publication Date: 1975-5

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 307-324
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00097622
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 29 1975 12:00AM