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The Spring 2010 ANC Control team inherited the original apparatus used by the Fall 2009 team. The original design of the apparatus was giraffe-like in shape, with two 1" pipes connected at a 45 degree angle. See Figure 1.
Figure 1
In order to address the hypotheses listed on link to Drew's page here Hypothesis and also to increase the ease with which the lime is fed, our team redesigned the apparatus. We added a vertical column to the top half of the apparatus to allow for lime to simply be poured in. As the lime traveled down the vertical column, the particles would settle in the lower part of the apparatus and/or flow into the diagonal piece, but then settle out before leaving in the effluent.
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