Problem

If the flow-through velocity in Problem 14-3 is raised to 0.025 m/s, what size particle...

If the flow-through velocity in Problem 14-3 is raised to 0.025 m/s, what size particle will be scoured?

Problem 14-3

WEF (1998) recommends that the clarifier linear flow-through velocity be limited to 0.020 m/s to prevent scour. Using a β for sticky particles and a Darcy-Weisback friction factor of 0.03, estimate the specific gravity of a 200 μm diameter particle that will be scoured at the recommended velocity.

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Solutions For Problems in Chapter 14