Filter cake washing
Filtration post-treatments

The repulping technique, in which one or more solutes from an imbibed solid are passed into solution, is similar to the ideal compartmentalized operations (notably solid-liquid) which are the subject of specialized articles in the present treatise (J 1070 to J 1073). Material balances will not be developed here, as each stage of the plant can be represented by the diagram shown in figure 1 for a counter-current exchange. Material transfers can then be presented in the form of a distribution diagram, with the solute concentration in the wash liquid (x) on the abscissa and the solute concentration in the cake interstitial liquid (y) on the...