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The length and width of a grid chamber is 12 ft by 12 ft and the depth is 6ft. The average wastewater flow is 1MGD and the peak flow is 3MGD. Sand particleshave a diameter of .2mm and a specific...

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The length and width of a grid chamber is 12 ft by 12 ft and the depth is 6ft. The average wastewater flow is 1MGD and the peak flow is 3MGD. Sand particleshave a diameter of .2mm and a specific gravity of 2.65. Find the horizontal flow velocity and the scour velocity. Will any of the particles be re-suspended?
Answered Same Day Dec 26, 2021

Solution

Robert answered on Dec 26 2021
131 Votes
Settling velocity of particles:



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]



[


] ( )

Detention period







Flow velocity




Scour velocity
( ( ) )

( ( )
...
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