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First Look into the

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Data

*February 22, 2008*

This is the raw data of settling column with alum dose of 15mg/L and turbidity vs. terminal velocity plot.

!Tube Floc Pictures and Graphs^rawdata.JPG! !Tube Floc Pictures and Graphs^NTU Vc.JPG!Image Added Image Added

Polynomial Regression is evaluated on turbidity vs. terminal velocity plot, where n = number of polynomial degree. (a) n=1, (b) n=2, (c) n=3 and (d) n=4!Tube Floc Pictures and Graphs^NTU Vc Regression.JPG!

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However for n>4, the trendlines look almost similar. The next step is to evaluate statistical analysis.