Question

If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is

a.

100 mg/l

b.

200 mg/l

c.

300 mg/l

d.

400 mg/l.

Posted under Civil Engineering

Answer: (d).400 mg/l.

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Q. If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is

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