Denitrification in sewage treatment systems require

Options :
  1. the bubbling of oxygen into waste sewage
  2. the addition of water to waste sewage
  3. an anaerobic environment
  4. an aerobic environment


Answer and Explanation :-

Answer: Option 3

Explanation:

Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : In Kolkakta, major air pollution is caused by

Next Question : Environmental impact Assessment (EIA)

Click here for free online test on General Science

Responses


 (Getemail alerts when others member replies)







Re-examine all you have been told. Dismiss what insults your soul.
-Walt Whitman