WILLMER, S.A., TARLETON, E.S., and HOLDICH, R.G., 1996. Aspects of modelling in compressible filter cake formation. Proceedings of the 1996 IChemE Research Event/2nd European Conference for Young Researchers, Leeds, pp. 1003-1005.
Solids concentrations through a solid/liquid mixture were determined using an electrical
impedance measuring technique described previously. A number of pressure leaf filter
experiments have been performed for two materials exhibiting a range of compressibility at
differing applied filtration pressures, initial solids concentrations and surface charges. The
paper indicates how such experimental data can be interpreted and modelled using both the
classical and so-called ‘modern’ filtration theory. The need to enhance these models for
compressible materials is highlighted with reference to the experimental data and the influential
particulate and process parameters. Suggestions for the ways in which models can be
improved are made.