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Water pollution in the Hudson River has claimed considerable recent attention, especially pollution from sewage outlets and industrial wastes. To determine accurately how much effluent enters the river is quite difficult because to catch and weigh the material is impossible, weirs are hard to construct, and so on. One suggestion that has been offered is to add a tracer of Br ion to a given sewage stream, let it mix well, and sample the sewage stream after it mixes. On one test of the proposal you add 10.0 lb of NaBr per hour for 24 hours to a sewage stream with essentially no NaBr in it. Somewhat downstream of the introduction point a sampling of the sewage stream shows 0.012 wt% NaBr. The sewage density is 60.3 lb/ft. Determine the flow rate of the sewage in lb/h.

Water pollution in the Hudson River has claimed considerable recent attention, especially pollution from sewage outlets and industrial wastes. To determine accurately how much effluent enters the river is quite difficult because to catch and weigh the material is impossible, weirs are hard to construct, and so on. One suggestion that has been offered is to add a tracer of Br ion to a given sewage stream, let it mix well, and sample the sewage stream after it mixes. On one test of the proposal you add 10.0 lb of NaBr per hour for 24 hours to a sewage stream with essentially no NaBr in it. Somewhat downstream of the introduction point a sampling of the sewage stream shows 0.012 wt% NaBr. The sewage density is 60.3 lb/ft. Determine the flow rate of the sewage in lb/h.

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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Water pollution in the Hudson River has claimed considerable recent attention, especially pollution from sewage outlets and industrial wastes. To determine accurately how much effluent enters the river is quite difficult because to catch and weigh the material is impossible, weirs are hard to construct, and so on. One suggestion that has been offered is to add a tracer of Br ion to a given sewage stream, let it mix well, and sample the sewage stream after it mixes. On one test of the proposal you add 10.0 lb of NaBr per hour for 24 hours to a sewage stream with essentially no NaBr in it. Somewhat downstream of the introduction point a sampling of the sewage stream shows 0.012 wt% NaBr. The sewage density is 60.3 lb/ft'. Determine the flow rate of the sewage in Ib,,/h. 10.0 lbm Ma Br/h ma 0.00012 I bomm Na Br/1bom 0 99988 1b S/len
Transcribed Image Text:Water pollution in the Hudson River has claimed considerable recent attention, especially pollution from sewage outlets and industrial wastes. To determine accurately how much effluent enters the river is quite difficult because to catch and weigh the material is impossible, weirs are hard to construct, and so on. One suggestion that has been offered is to add a tracer of Br ion to a given sewage stream, let it mix well, and sample the sewage stream after it mixes. On one test of the proposal you add 10.0 lb of NaBr per hour for 24 hours to a sewage stream with essentially no NaBr in it. Somewhat downstream of the introduction point a sampling of the sewage stream shows 0.012 wt% NaBr. The sewage density is 60.3 lb/ft'. Determine the flow rate of the sewage in Ib,,/h. 10.0 lbm Ma Br/h ma 0.00012 I bomm Na Br/1bom 0 99988 1b S/len
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