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The data processor was unable to fit the sedimentation velocity vs. turbidity curve into a gamma pdf graph,because the trend of our mean turbidities was not following a gamma distribution(Figure _A). We suspect that it could not fit because of a low influent turbidity of 5 NTU, and how our lowest mean effluent turbidity was less than ideal at 1.978 NTU.
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FIGURE 12B: The graph plots the residual turbidity vs. sedimentation velocity for each Alum dose ranging 10 mg/L~50 mg/L;
On November 11, 2009, an experiment was conducted with the turbidity set around 25 NTU, flocculator length 2796 cm, flow rate of 5 mL/s, and alum dosage ranged from 10 to 50 mg/L.
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