1.

Compute the required recycled rate for the flotation thickener with recycle for the following information:A/S = 0.008 mL/mgp = 275 atmTemperature: 20 degree CelsiusAir solubility: 18.7 mL/LRecycle steam pressure: 275 kPaFraction of saturation: 0.5Surface Loading rate: 8 L/m2/minSludge flow rate: 400 m3/d

A. 462 m3/d
B. 642 m3/d
C. 380 m3/d
D. 680 m3/d
Answer» B. 642 m3/d


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