To remove Giardia a water drinking water treatment plant uses chorine. The EPA states the inactivation rate constant k* for Giardia with chlorine is 0.53 min-1: dN/dt = -k*N The plant treats 4.5 MGD and achieves the required 3-log removal of Giardia in a plug flow contact chamber reactor. a. What is the volume of the contact chamber? b. What would be the volume if a CSTR contact chamber was used rather than a PFR? c. Could the total CSTR volume be reduced if instead of one large tank 5 smaller tanks in series were used? What is the total volume of the 5 tanks in series to perform a 3-log reduction. d. What is the coefficient of specific lethality for Giardia under these conditions assuming a coefficient of dilution = 1.
To remove Giardia a water drinking water treatment plant uses chorine. The EPA states the inactivation rate constant k* for Giardia with chlorine is 0.53 min-1: dN/dt = -k*N The plant treats 4.5 MGD and achieves the required 3-log removal of Giardia in a plug flow contact chamber reactor. a. What is the volume of the contact chamber? b. What would be the volume if a CSTR contact chamber was used rather than a PFR? c. Could the total CSTR volume be reduced if instead of one large tank 5 smaller tanks in series were used? What is the total volume of the 5 tanks in series to perform a 3-log reduction. d. What is the coefficient of specific lethality for Giardia under these conditions assuming a coefficient of dilution = 1.
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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To remove Giardia a water drinking water treatment plant uses chorine. The EPA states the inactivation rate constant k* for Giardia with chlorine is 0.53 min-1:
dN/dt = -k*N
The plant treats 4.5 MGD and achieves the required 3-log removal of Giardia in a plug flow contact chamber reactor.
a. What is the volume of the contact chamber?
b. What would be the volume if a CSTR contact chamber was used rather than a PFR?
c. Could the total CSTR volume be reduced if instead of one large tank 5 smaller tanks in series were used? What is the total volume of the 5 tanks in series to perform a 3-log reduction.
d. What is the coefficient of specific lethality for Giardia under these conditions assuming a coefficient of dilution = 1.
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