A 0.02 M feed solution containing a macromolecular solute is to be concentrated to 0.1 M concentration by batch ultrafiltration at 25℃. The solute rejection is 95% . If the upstream pressure is 3.5 atm and the downstream pressure is essentially atmospheric, calculate the effective pressure driving force at the beginning and at the end of the process. Also estimate the fractional reduction in the solvent flux at the end of the process. (assume fractional reduction in flux = fractional reduction in driving force).
A 0.02 M feed solution containing a macromolecular solute is to be concentrated to 0.1 M concentration by batch ultrafiltration at 25℃. The solute rejection is 95% . If the upstream pressure is 3.5 atm and the downstream pressure is essentially atmospheric, calculate the effective pressure driving force at the beginning and at the end of the process. Also estimate the fractional reduction in the solvent flux at the end of the process. (assume fractional reduction in flux = fractional reduction in driving force).
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 0.02 M feed solution containing a macromolecular solute is to be concentrated to 0.1 M
concentration by batch ultrafiltration at 25℃. The solute rejection is 95% . If the upstream
pressure is 3.5 atm and the downstream pressure is essentially atmospheric, calculate the
effective pressure driving force at the beginning and at the end of the process. Also estimate the
fractional reduction in the solvent flux at the end of the process. (assume fractional reduction in
flux = fractional reduction in driving force).
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