Subj: Chemical engineering

Based on data of Ruth and Kempe, the constant pressure ( 40psi) filtration for an aqueous slurry of calcium carbonate precipitate is /V=7060V+195.4sec/cuft. An experimental plate and frame filter with a single frame was used. the frame was 1.18 in thick and had 0.283 sq. ft. filtration area. The slurry was filtered at 66F and contained 7.23wt% suspended solids. The cake formed was 2.02lb per lb solids. The specific gravity of calcium carbonate is 2.93 . Neglecting the slight solubility of calcium carbonate in water, the filtrate viscosity is 1.03cP and the density is 62.3lb/ft3. Calculate the thickness (inches) of the cake formed in the experimental frame on each filter cloth during first 48.8sec