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Problem 6 A truck is ruptured and releases a non-reactive liquid into a streamline, which drains into a retention pond with a 20,000 m³ liquid volume. The streamline has a velocity of 0.10 m/s and a flow rate of 0.10 m³/s. It is 5000 m from the spill site to the pond. Assume that the pond operates like a CSTR with balanced flow (Qin=Qout) a) Calculate the time required to reach the pond (in days) b) Estimate the time it will take to flush the following percentages of the liquid from the pond. Fill the table below. Flushing percentage (%) 20 Time (minutes) 40 60 80 90 Note: This is a case of flushing a nonreactive contaminant from a CSTR. Q 0.10 m³/s น 0.10 m/s Stream line 5000 m Retention pond V-20,000 m³

Problem 6 A truck is ruptured and releases a non-reactive liquid into a streamline, which drains into a retention pond with a 20,000 m³ liquid volume. The streamline has a velocity of 0.10 m/s and a flow rate of 0.10 m³/s. It is 5000 m from the spill site to the pond. Assume that the pond operates like a CSTR with balanced flow (Qin=Qout) a) Calculate the time required to reach the pond (in days) b) Estimate the time it will take to flush the following percentages of the liquid from the pond. Fill the table below. Flushing percentage (%) 20 Time (minutes) 40 60 80 90 Note: This is a case of flushing a nonreactive contaminant from a CSTR. Q 0.10 m³/s น 0.10 m/s Stream line 5000 m Retention pond V-20,000 m³

Fundamentals of Geotechnical Engineering (MindTap Course List)
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter7: Seepage
Section: Chapter Questions
Problem 7.6P
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Problem 6 A truck is ruptured and releases a non-reactive liquid into a streamline, which drains into a retention pond with a 20,000 m³ liquid volume. The streamline has a velocity of 0.10 m/s and a flow rate of 0.10 m³/s. It is 5000 m from the spill site to the pond. Assume that the pond operates like a CSTR with balanced flow (Qin=Qout) a) Calculate the time required to reach the pond (in days) b) Estimate the time it will take to flush the following percentages of the liquid from the pond. Fill the table below. Flushing percentage (%) 20 Time (minutes) 40 60 80 90 Note: This is a case of flushing a nonreactive contaminant from a CSTR. Q 0.10 m³/s น 0.10 m/s Stream line 5000 m Retention pond V-20,000 m³
Transcribed Image Text:Problem 6 A truck is ruptured and releases a non-reactive liquid into a streamline, which drains into a retention pond with a 20,000 m³ liquid volume. The streamline has a velocity of 0.10 m/s and a flow rate of 0.10 m³/s. It is 5000 m from the spill site to the pond. Assume that the pond operates like a CSTR with balanced flow (Qin=Qout) a) Calculate the time required to reach the pond (in days) b) Estimate the time it will take to flush the following percentages of the liquid from the pond. Fill the table below. Flushing percentage (%) 20 Time (minutes) 40 60 80 90 Note: This is a case of flushing a nonreactive contaminant from a CSTR. Q 0.10 m³/s น 0.10 m/s Stream line 5000 m Retention pond V-20,000 m³
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