Question

In: Civil Engineering

a. To measure the BOD5 of a wastewater, three dilutions are prepared. The data for the...

a. To measure the BOD5 of a wastewater, three dilutions are prepared. The data for the tests are provided below. What is the BOD of the wastewater?

Wastewater

(mL)

DO

t = 0

DO

t = 5 days

5 9.2 4.8
8 9.1 3.2
10 9.1 1.8

b. The BOD5 of a wastewater is estimated to be 75 mg/L at standard temperature. The k value is 0.150 day-1 at standard temperature. What is the ultimate BOD?

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