A new procedure for determining specific filter cake resistance from filtration data

A new procedure has been developed for the determination of specific filter cake resistance from experimental filtration data. Unlike the conventional procedure which treats constant-pressure filtration data through the t/Vt/V vs. VV plot and yields a single value of the average specific cake resistance (αav)(αav) from a given experiment, this new procedure allows the establishment of the relationship of αavαav vs. the cake compressive stress (ps)(ps) over a range of psps values. Results from the new procedures were compared with those obtained from the procedure based on the t/Vt/V vs. VV plot as well as those from compression–permeability (C–P) measurements. Discussions on the possible improvement of the new procedure are also presented.