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Water with a chloride concentration of 50 mg/L is discharged into a river at a flowrate of 100 m³/h into a river. The flowrate of the river is 6 000 m³/h and the Cl concentration is 2 mg/L before the discharge. What is the total flowrate at the end of the mixing zone? m³/h Qtot = 6100 ii) What is the concentration at the end of the mixing zone? Step 1: Calculate the mass flow of Cl that enters the mixing zone in the river water.

Water with a chloride concentration of 50 mg/L is discharged into a river at a flowrate of 100 m³/h into a river. The flowrate of the river is 6 000 m³/h and the Cl concentration is 2 mg/L before the discharge. What is the total flowrate at the end of the mixing zone? m³/h Qtot = 6100 ii) What is the concentration at the end of the mixing zone? Step 1: Calculate the mass flow of Cl that enters the mixing zone in the river water.

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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F2 Water with a chloride concentration of 50 mg/L is discharged into a river at a flowrate of 100 m³/h into a river. The flowrate of the river is 6 000 m³/h and the Cl concentration is 2 mg/L before the discharge. What is the total flowrate at the end of the mixing zone? m³/h i) Qtot = 6100 ii) What is the concentration at the end of the mixing zone? Step 1: Calculate the mass flow of Cl that enters the mixing zone in the river water. mcl, river = 0.819 mg/h Step 2: Calculate the mass flow of Cl that enters the mixing zone in the effluent. mcl, effluent = 1.967 mg/h Step 3: Calculate the total mass flow of Cl that enters the mixing zone. Note that, at steady state, the amount of Cl that enters is equal to amount of Cl that leaves the mixing zone. mcl, total = 2.786 mg/h Step 4: Calculate the concentration of CI at the end of the mixing zone when the water is well-mixed. F3 F4 W DELL
Transcribed Image Text:F2 Water with a chloride concentration of 50 mg/L is discharged into a river at a flowrate of 100 m³/h into a river. The flowrate of the river is 6 000 m³/h and the Cl concentration is 2 mg/L before the discharge. What is the total flowrate at the end of the mixing zone? m³/h i) Qtot = 6100 ii) What is the concentration at the end of the mixing zone? Step 1: Calculate the mass flow of Cl that enters the mixing zone in the river water. mcl, river = 0.819 mg/h Step 2: Calculate the mass flow of Cl that enters the mixing zone in the effluent. mcl, effluent = 1.967 mg/h Step 3: Calculate the total mass flow of Cl that enters the mixing zone. Note that, at steady state, the amount of Cl that enters is equal to amount of Cl that leaves the mixing zone. mcl, total = 2.786 mg/h Step 4: Calculate the concentration of CI at the end of the mixing zone when the water is well-mixed. F3 F4 W DELL
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