Experiment 4: Alum dose = 15 mg/L

This is an underdose. These graphs show the effluent turbidity plotted against time for capture velocities of 0.058, 0.116, 0.174, and 0.231 mm/sec.

Figure 1: Effluent Turbidity vs. Time for Floc Blanket on low, alum dose = 15 mg/L


Figure 2: Effluent Turbidity vs. Time for Floc Blanket on high, alum dose = 15 mg/L

Conclusions

This unexpectedly performed well, excpet the floc blanket took a long time to form.