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Using on-line turbidimeter monitoring technique in evaluating algal suspension removal

Cheng W. P., Chi F. H., Yu R. F., Kao Y. P.

Environment Protection Engineering

2010

Vol. 36, nr 4

65-75

In this study, an on-line Nephelopmetric turbidimeter connecting to a data acquisition unit was used to monitor the algal flocs formation at various velocity gradient (or mixing energy, G in s -1 ) values. The results indicated that the standard deviations (SD) of the turbidities during the flocculation (slow mixing) period provide more information than the floc size. In addition, this on-line monitoring technique can be a simple and effective indicator to obtain an optimal G value for a flocculation process.