A series of experiments was conducted in a batch reactor to assess the disinfection by chlorine of the protozoan Giardia lamblia. In each experimental run, the concentration of free available chlorine was varied and the time required to kill 99 percent of the organisms was determined. The results showed that a Ct value of 100 mg-min/L was sufficient to achieve 2-log removal. Assume that the Chick- Watson model holds with n = 1. A. What value is the psuedo-first order disinfection rate coefficient k (min ¹) when the chlorine concentration is 1 mg/L? B. At a chlorine concentration of 1 mg/L and a contact time of 10 minutes, what fraction of the G. lamblia organisms would be killed? C. At a chlorine concentration of 10 mg/L and a contact time of 5 minutes, estimate the fraction of the G. lamblia organisms that would be killed.

A series of experiments was conducted in a batch reactor to assess the disinfection by chlorine of the protozoan Giardia lamblia. In each experimental run, the concentration of free available chlorine was varied and the time required to kill 99 percent of the organisms was determined. The results showed that a Ct value of 100 mg-min/L was sufficient to achieve 2-log removal. Assume that the Chick- Watson model holds with n = 1. A. What value is the psuedo-first order disinfection rate coefficient k (min ¹) when the chlorine concentration is 1 mg/L? B. At a chlorine concentration of 1 mg/L and a contact time of 10 minutes, what fraction of the G. lamblia organisms would be killed? C. At a chlorine concentration of 10 mg/L and a contact time of 5 minutes, estimate the fraction of the G. lamblia organisms that would be killed.

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter10: Oxidation, Degradation, Corrosion, Electroprocessing, Batteries, And Fuel Cells

Section: Chapter Questions

Problem 10.1P

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Please upload your full solution to the following problem.
A series of experiments was conducted in a batch reactor to assess the disinfection by chlorine of the
protozoan Giardia lamblia. In each experimental run, the concentration of free available chlorine was
varied and the time required to kill 99 percent of the organisms was determined. The results showed
that a Ct value of 100 mg-min/L was sufficient to achieve 2-log removal. Assume that the Chick-
Watson model holds with n = 1.
A. What value is the psuedo-first order disinfection rate coefficient k (min ¹) when the chlorine
concentration is 1 mg/L?
B. At a chlorine concentration of 1 mg/L and a contact time of 10 minutes, what fraction of the G.
lamblia organisms would be killed?
C. At a chlorine concentration of 10 mg/L and a contact time of 5 minutes, estimate the fraction of
the G. lamblia organisms that would be killed.
4

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