The continuous flow type of sedimentation tanks are widely adopted at present and hence, it becomes essential to study in detail some of the design aspects of these tanks. Following are the aspects of continuous flow sedimentation tanks: 1. Velocity of Flow 2. Capacity of Tank 3. Miscellaneous Considerations. 1. Velocity of Flow: The velocity of flow of water in [...]
For the purpose of designing, the continuous flow basin may be divided into following four zones: (a) An inlet zone, (b) A settling zone, (c) Sludge zone, and (d) An outlet zone. Before starting design work the following simple assumptions could be made: (i) The water in the settling zone acts as quiescent without any disturbance and the sedimentation takes [...]
In practice three types of sedimentation tanks are used, which are as follows: 1. Rectangular Tanks 2. Circular Tanks 3. Hopper Bottom Tanks. Type # 1. Rectangular Tanks: These are rectangular in plan and consist of large number of baffle walls. The function of baffle walls is to reduce the velocity of incoming water to increase the effective length of [...]