A water works has to purify the water for a town whose daily demand i…

Question

A water works has to purify the water for a town whose daily demand is $9 \times 10^6$ liters per day. Design the suitable sedimentation tank of the water works fitted with mechanical sludge remover. Assume the velocity of flow in the sedimentation tank as 22 cm/minute and the detention period as 8 hours.