Hydraulic Design of Sedimentation chamber

Parameters

Design discharge (including Flushing and Overload Discharge)= 5.76

Particle size to be removed = +0.20 mm

= 0.20 m/sec

= 0.019 m/sec

Design calculations

Width proposed(W) = 7 mDepth required(D) = Q( Full supply depth)

= 4.18 m

Moderated settling velocity =

= 0.018 m/sec

Settling length =Settling velocity

= 43.31 m

Length = 45.00 mWidth = 7.00 mDepth = 5.00 m

Cumecs

Flow through velocity Vf

Settling velocity Vs

Wxvf

Vs-0.132xVs

D^1/2

Flow through velocityxDepth

Provide desilting tank-