In this article (and video above), we calculate the BOD (Biochemical Oxygen Demand) of wastewater that forms part of the Civil and Environmental Engineering section of the FE exam to give you a better understanding of what you can expect during the exam. This problem was solved by Enrique Ivers, an Engineer in Training.
Question:
A sample of wastewater is incubated for 7 d at a temperature of 20°C. After this incubation period, the BOD is found to be 211 mg/L. The reaction rate constant is 0.14 d-1 (base e) The ultimate BOD of this sample is most nearly:
A: 225mg/L
B: 310 mg/L
C: 340 mg/L
D: 560 mg/L
Solution:
[Read more…] about Biochemical Oxygen Demand (BOD) | FE Exam Review
