HOLDICH, R.G., TARLETON, E.S. and SHAW, F.J., 1993. A new experimental technique for the analysis of cake filtration. Proceedings, Filtech 1993, Karlsruhe, Germany, pp. 11-20.
An electrical conductivity technique for determining cake heights, and hence average
concentrations, during stepped-up pressure filtrations is described. Experimental data are
presented which compare the results from individual constant pressure filtrations and a filtration
employing a sequence of corresponding pressures. The data are analysed in a variety of ways
that show the accuracy of the time saving step-up technique when the solids concentration is