Question: Question 1 5 1 2 pts Complete this problem on a new sheet of paper. The ultimate BOD of a river after mixing with a

Question 15
12 pts
Complete this problem on a new sheet of paper.
The ultimate BOD of a river after mixing with a wastewater discharge is 16.23mgL. The DO concentration in the river after the mixing point is 6.35mgL. The river temperature is 29C. However, at 20C,kd is 0.15? day, and ka is 0.35? day. Calculate the critical time and DO below. It must match what is written on your paper. (Official Use Only: 101347)
Question 1 5 1 2 pts Complete this problem on a

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