An UF membrane has a rejection factor for solute A, RA= 0.95, and for solute B,...
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An UF membrane has a rejection factor for solute A, RA= 0.95, and for solute B, RB = 0.67. The feed solution has concentrations of solutes A and B of cfA=4.5 wt% and cf.B = 2.5 wt%. If the process UF process is carried out at nearly zero stage cut, what is the composition of the permeate? What is the selectivity, a, of this membrane for the separation of the two solutes? Describe qualitatively how the composition of permeate changes if the UF process was carried out at the stage cut of 20%. An UF membrane has a rejection factor for solute A, RA= 0.95, and for solute B, RB = 0.67. The feed solution has concentrations of solutes A and B of cfA=4.5 wt% and cf.B = 2.5 wt%. If the process UF process is carried out at nearly zero stage cut, what is the composition of the permeate? What is the selectivity, a, of this membrane for the separation of the two solutes? Describe qualitatively how the composition of permeate changes if the UF process was carried out at the stage cut of 20%.
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