Practice question

Question

A sedimentation tank of height 100 em is used in a conventional activated sludge process to separate a suspension of spherical shaped granular sludge biomass of 0.5 mm diameter. The viscosity of the liquid is 1 cP. The difference in density between the suspended biomass and the liquid is 0.lgcm^-3 • If the biomass reach their terminal velocity instantaneously, the biomass settling time in min (rounded offto two decimal places) is ____