A reverse-osmosis plant is used to treat 30,000,000 gal∕day of seawater at 20∘C containing 3.5wt% dissolved solids to produce 10,000,000 gal∕day of potable water, with 500 ppm of dissolved solids and the balance as brine containing 5.25 wt% dissolved solids.The feed-side pressure is 2,000 psia, while the permeate pressure is 50 psia. A single stage of spiral-wound membranes is used that approximates crossflow. If the total membrane area is 2,000,000 ft2, estimate the permeance for water and the salt passage.
A reverse-osmosis plant is used to treat 30,000,000 gal∕day of seawater at 20∘C containing 3.5wt% dissolved solids to produce 10,000,000 gal∕day of potable water, with 500 ppm of dissolved solids and the balance as brine containing 5.25 wt% dissolved solids.The feed-side pressure is 2,000 psia, while the permeate pressure is 50 psia. A single stage of spiral-wound membranes is used that approximates crossflow. If the total membrane area is 2,000,000 ft2, estimate the permeance for water and the salt passage.
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 reverse-osmosis plant is used to treat 30,000,000 gal∕day of seawater at 20∘C containing 3.5wt% dissolved solids to produce 10,000,000 gal∕day of potable water, with 500 ppm of dissolved solids and the balance as brine containing 5.25 wt% dissolved solids.The feed-side pressure is 2,000 psia, while the permeate pressure is 50 psia. A single stage of spiral-wound membranes is used that approximates crossflow. If the total membrane area is 2,000,000 ft2, estimate the permeance for water and the salt passage.
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