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As shown in Figures 2 and 3, filter performance for this horizontal filtration experiment was not nearly as good as the filter performance achieved in previous vertical filtration experiments. This seems to indicate that while filter performance is not solely dependent on the film formation, it is nonetheless a vital component. While it may not be the film itself that enables a higher filtration capacity, it is indicative of higher filtration actually being achieved. Further tests with horizontal filtration are necessary to confirm this hypothesis. These are not the results that were expected from this trial, therefore, we must conduct further tests to explore the reasoning for these results, and to confirm that these were not in fact erroneous results.

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Figure 2: Turbidity vs Time for Horizontal Filtration

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Figure 3: pC* vs Time for Horizontal Filtration