Question

An aqueous suspension containing 7% insoluble solids is filtered, at a rate of 10 ton / h, using a frame and plate filter press, which works at a constant pressure of 3 atm. Experimentally it has been found that the deposited cake has 50% humidity, the density of the dry solid being 3.5 g / cm3, and the equivalent diameter of the deposited particles 0.002 mm. It neglects the resistance that the filter medium offers to the filtration and calculates the specific resistance of the cake and the volume of filtered water after one hour. The constant of Kozeny K’’= 5. For filtering: density = 1,000 kg/m3; µ = 1 mPa·s