In: Civil Engineering
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?