A rotary vacuum drum filter having a 33% submergence of the drum in the slurry is to be used to filter a CaC03 slurry using a pressure drop of 67.0 kPa. The solids concentration in the slurry is Cx= 0.191 kg solid/kg slurry, and the filter cake is such that the kg wet cake/kg dry cake = m 2.0. The density and viscosity of the filtrate can be assumed as that of water at 298.2 K. Calculate the filter area needed to filter 0.778 kg slurry/so The filter cycle time is 250s. The specific cake resistance can be represented by a (4.37 X 10") (-Ap), where -Ap is in Pa and a in m/kg. (similar to example 30.3 of slides)