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Previous work:
During summer 2010, the foam filtration team worked on designing a foam filtration unit that could reliably treat the typical AguaClara effluent water with a turbidity of about 5 NTU to a turbidity of less than 1 NTU. We ran multiple experiments with different velocities, foam depths, influent turbidities, and alloy coating. The important insights we gained from the project were as follows:
(1) The experiments revealed that filtration performance (pC*) decreased with increasing velocity (Figure 1).
Figure 1 - Maximum average pC* versus water velocity
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