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A tubular UF unit is used to process whey. In the absence of the protein, a membrane flux of 100 L/m2 h can be obtained, when the PTM is 0.4 atm. The osmotic pressure produced by proteins, in atm, correlates with the following equation: Aл = 4.4x10-3-1.7x10-6C2 + 7.9x10-803 Where C is the protein concentration in g/L Calculate: a) The coefficient of hydraulic permeability Lp through the membrane. b) The permeate flux for a protein concentration of 10 g/L and a PTM of 1 atm. Assume that the protein is totally rejected by the membrane and that concentration polarization and gel layer resistances are negligible.

A tubular UF unit is used to process whey. In the absence of the protein, a membrane flux of 100 L/m2 h can be obtained, when the PTM is 0.4 atm. The osmotic pressure produced by proteins, in atm, correlates with the following equation: Aл = 4.4x10-3-1.7x10-6C2 + 7.9x10-803 Where C is the protein concentration in g/L Calculate: a) The coefficient of hydraulic permeability Lp through the membrane. b) The permeate flux for a protein concentration of 10 g/L and a PTM of 1 atm. Assume that the protein is totally rejected by the membrane and that concentration polarization and gel layer resistances are negligible.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A tubular UF unit is used to process whey. In the absence of the protein, a membrane flux of 100 L/m2 h can be obtained, when the PTM is 0.4 atm. The osmotic pressure produced by proteins, in atm, correlates with the following equation: Aπ = 4.4x10-³-1.7x10-6c² +7.9x10-8C³ Where C is the protein concentration in g/L Calculate: a) The coefficient of hydraulic permeability Lp through the membrane. b) The permeate flux for a protein concentration of 10 g/L and a PTM of 1 atm. Assume that the protein is totally rejected by the membrane and that concentration polarization and gel layer resistances are negligible.
Transcribed Image Text:A tubular UF unit is used to process whey. In the absence of the protein, a membrane flux of 100 L/m2 h can be obtained, when the PTM is 0.4 atm. The osmotic pressure produced by proteins, in atm, correlates with the following equation: Aπ = 4.4x10-³-1.7x10-6c² +7.9x10-8C³ Where C is the protein concentration in g/L Calculate: a) The coefficient of hydraulic permeability Lp through the membrane. b) The permeate flux for a protein concentration of 10 g/L and a PTM of 1 atm. Assume that the protein is totally rejected by the membrane and that concentration polarization and gel layer resistances are negligible.
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