Given the following BOD data: Time (days) Diluted sample DO (mg/l). 7.95 3.75 3.45 2.75 2.15...

Question

Question

Answer 1

Answer #1

BOD5 = (DOinitial - DOfinal) * Dilution factor

Dilution factor = final volume after dilution / initial volume of sample

dilution factor = 1/P = 100

DOinitial = 8.15

DOfinal = 7.9

Therefore

BOD5 = (8.15 - 7.9) *100 = 25 mg/l

Answer 2

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