Methods
In this experiment, we seek to determine what direct impact the diameter of the tube settler has on sedimentation efficiency. From the experiment detailed on the previous page, we were able to identify a range of capture velocities that produce low turbidity effluent regardless of tube diameter. For this experiment, we chose three capture velocities within this range and adjusted the length of the tube settlers to satisfy this velocity. Upflow velocity through the tubes were held constant. Recall that
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\large[V_c = \frac{{dV_
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}}{{L_
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\sin (\alpha )\cos (\alpha ) + d}}]
is the capture velocity equation.
As the capture velocity equation above indicates, holding the capture velocity constant and varying the length to satisfy this velocity, allows isolation of the diameter of the tube as the parameter that should most directly impact settling efficiency.
Results
Work in Progress