The filter ofProb. 30.7 is operated at a constant rate of 0.6 gal/ft2-min from the start of the run until the pressure drop reaches 70 lb f/in. 2 and then at a constant pressure drop of 70IbJ/in.' until a total of 1400 gal of filtrate is obtained. The operating temperature is 70°F. What is the total filtration time required?
Prob. 30.7 The following relation between a and I1p for Superlight CaCO, has been determined
cubic foot of filtrate is to be filtered at a constant pressure drop of 70 Ibf /in.2 and a temperature of 70°F. Experiments on this sludge and the filter cloth to be used gave a value of
