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A lagoon with volume 15,000 m³ is being polluted by a stream that flows at 1,000 m³/day and carries fecal bacteria with a concentration of 5,000 per mL due to a leaking sewage pipe. a) Assuming this has been going on for a while, that the lagoon is completely mixed (CSTR), and that the bacteria die off with a first-order decay constant of 0.1 day-¹, what would be the concentration of the water flowing out of the lagoon? Answer: 2000 mL-¹

A lagoon with volume 15,000 m³ is being polluted by a stream that flows at 1,000 m³/day and carries fecal bacteria with a concentration of 5,000 per mL due to a leaking sewage pipe. a) Assuming this has been going on for a while, that the lagoon is completely mixed (CSTR), and that the bacteria die off with a first-order decay constant of 0.1 day-¹, what would be the concentration of the water flowing out of the lagoon? Answer: 2000 mL-¹

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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A lagoon with volume 15,000 m³ is being polluted by a stream that flows at 1,000 m³/day and carries fecal bacteria with a concentration of 5,000 per mL due to a leaking sewage pipe. a) Assuming this has been going on for a while, that the lagoon is completely mixed (CSTR), and that the bacteria die off with a first-order decay constant of 0.1 day-¹, what would be the concentration of the water flowing out of the lagoon? Answer: 2000 mL-¹
Transcribed Image Text:A lagoon with volume 15,000 m³ is being polluted by a stream that flows at 1,000 m³/day and carries fecal bacteria with a concentration of 5,000 per mL due to a leaking sewage pipe. a) Assuming this has been going on for a while, that the lagoon is completely mixed (CSTR), and that the bacteria die off with a first-order decay constant of 0.1 day-¹, what would be the concentration of the water flowing out of the lagoon? Answer: 2000 mL-¹
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