Sedimentation Tank Design (Summer 2007)

Closed Top Design

Figure 1. Closed top sedimentation tank, as implemented in

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Summer 2007

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This sedimentation tank was designed and built in Summer 2007 by Sara Schwetschenau and the Civil and Environmental Engineering Machine Shop, and has a closed top design.

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Since this design featured a closed top sedimentation tank, a weir, shown below, was used to adjust the water level in the flocculator. Rotating the weir to adjust the height of the part open to the atmosphere allowed us to change the pressure head inside the sedimentation tank, and thus changed the water level of the flocculator.

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Figure 2. Weir for controlling plant water levels

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