Waste Water Engineering

If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is

  • A. 200 ppm
  • B. 225 ppm
  • C. 250 ppm
  • D. None of these
Answer: Option C.
Explanation: 

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