7.41 Calculate the filter yield for a CaCO3 sludge with cake filtration parameters determined in Problem 7.40. The cake is to be dewatered in a vacuum filter under a vacuum of 630 mm Hg. The mass of filtered solids per unit volume of filtrate is to be 60 kg/m . The filtration temperature is determined to be 25°C and the cycle time, one-fourth of which is form time, is five minutes.

7.42 What is the resistance of the filter medium Rm, in Problem 7.40?

7.43 In Problem 7.40, what is the volume of filtrate expected in 308 seconds for the 22.69-kN/m2 test?

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