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Our data suggested that there was no significant difference in the measured effluent turbidities of the two filters. Both filters also show linear relationships in measured head loss over time. However, one advantage we found to using the SRSF design is that the head loss increases at a slightly slower rate over time than the normal surface filter. We also noted that at a higher filter velocity, the surface filter did not show hardly any particle build-up on the surface of the sand column, which suggests that velocity is a determining factor in whether or not depth filtration occurs.
[ Experimental Apparatus Schematic | ^ Computer_Schematic.png]
[ Example of Results for Effluent Turbidity | ^ ]
[ Example of Results for Head Loss | ^ ]
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