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XN/X0 = 1 / (En+1) where, n is the number of stages.
The flow rates of organic (L) and aqueous (H) phases are 10 L/min and 100 L/min respectively. The distribution coefficient of penicillin between organic and aqueous phases at pH = 3 is KD (=YL/XH) = 50. If the penicillin concentration in the feed stream is 20 g/L, determine the number of stages required to reduce the penicillin concentration to 0.1 g/L in the effluent of the extraction unit.
Pressure at the entrance of the system is P=6 atm and the pressure at the exit is P0=2 atm. The shell side of the filter is open to the atmosphere, resulting in Pr = 1 atm. The membrane resistance is RM = 0.5 atm/(mg/m2 h), and the protein concentration in the broth is CB=100 mg/L. Determine :
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