Question: A series of buchner funnel tests were run on a chemical sludge to determine the optimum polyelectolyte dosage for sludge conditioning before vacuum filtration. Results of one of the test are listed below, where time zero corresponds to the time when the cake had formed in the filter. Initial and final moisture content was 96% and 65% , respectively. Other test conditions were : filter area = 176.7cm2 pressure = 1020g/cm2 and viscousity = 0.0098 poise
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