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the process in which the velocity of the water is lowered below the suspension velocity and the particles settle out of the water due to gravity. This process is also known as settling or clarification. This may not be necessary in low turbidity water of less than 10 NTU.
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LESSON 9- Water Treatment: Sedimentation Sedimentation- the process in which the velocity of the water is lowered below the suspension velocity and the particles settle out of the water due to gravity. This process is also known as settling or clarification. This may not be necessary in low turbidity water of less than 10 NTU. Types of Basins 1.) Rectangular- water flows horizontally through a long tank. 2.) Double Deck- two rectangular 3.) Clarifiers- square or circular basins with horizontal flow. More likely to have short circuiting problems. Short-circuiting- Water skips the usual path and flows straight to the outlet faster than normal. FOUR ZONES of SEDIMENATION BASINS 1.) INLET ZONE-
agitation.