Abstract
A new test apparatus for in situ simulation of the expression operation and rheological testing of compressed cake was developed to combine the compression-permeability cell with a high-performance ring shear tester. The yield loci for water-saturated titania (dS = 200 nm) are measured. These flow parameters can be used to determine in situ the shear strength and compressive strength of a consolidated cake after the pressure filtration steps. The permeability of the compressed cake is characterized by the conventional filter cake resistance versus particle pressure and, for comparison, by an averaged pore size.
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