Novel probe for the investigation of slurry filtration

A novel impedance probe was commissioned specifically for capturing fast dy namic information about filtration processes, It provides an attractive alt ernative to more complex measurement techniques in situations where the slu rry system is primarily one-dimensional. The probe can monitor mudline, slu rry densification and drainage. Dynamic variations in cake permeability are obtained by combining dynamic mudline information obtained with the probe and filtrate rate data derived from a leaf test apparatus. The measurements are reviewed in relation to microstructural measurements obtained on iron ore filter cakes. The practical significance of these measurements for opti mization of the filtration process is discussed.