Waste Water Engineering

Pick up the incorrect statement from the following:

  • A. Septic tanks are horizontal continuous flow type of sedimentation tanks
  • B. Septic tanks are generally provided a detention period of 12 to 36 hours
  • C. Septic tanks are completely covered and high vent shafts are provided for the escape of foul gases
  • D. None of these
Answer: Option D.
Explanation: 

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