Q. Biochemical oxygen demand of wastewater represent:

A
total concentration of biochemical matter
B
total organic matter
C
concentration of biodegradable organic matter
D
concentration of chemically degradable organic matter
Solution:

Biochemical Oxygen Demand or BOD or Biological Oxygen Demand is defined as the amount of dissolved oxygen needed for aerobic biological organisms to break down the organic material present in a water sample at certain temperature over a specific period of time.

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