Question

A feed solution at 25 C contains 3500 mg NaCl/L (ρ = 999.5 kg/m3). The permeability constant Aw = 3.50 x 10^-4 kg solvent/s.m2.atm and As = 2.50 x 10^-7 m/s. Using a ΔP = 35.50 atm, calculate the fluxes, solute rejection R, and the product solution concentration in mg NaCl/L. Repeat, but using a feed solution of 3500 mg BaCl2/L. Use the same value of Aw, but As = 1.00 x 10-7 m/s (A1). Note: this is problem 13.9-3 from Transport Processes and Separation Principles by Geankoplis