Clariflocculator is a combination of flocculation and clarification in a single tank. It has two concentric tanks where inner tank serves as a flocculation basin and the outer tank serves as a clarifier. In the Clariflocculator, the water enters the floc c ulator, where the flocculating paddles enhance flocculation of the feed solids. As heavy particles settle to the bottom. the liquid flows radially upward in the clarifier zone,. The clarified liquid is discharged over a peripheral weir into the peripheral launder. The deposited sludge is raked to the bottom near the central weir from where it is routed to the sludge chamber and discharged.