Particle Technology

Filtration

Problems 4.10

Question 2.iv
The water retained in the cake was 200 ml, solids present was 200 ml.

Five litres of a 10% w/w slurry of chalk (density of 2670 kg m^-3) in water (viscosity of 0.001 Pa s) was filtered under constant pressure on a filter leaf of 0.0314 m² area. The specific surface of the chalk is 3x10⁶ m^-1 and the cake can be assumed to have had a porosity of 50%.