What is the main disadvantage of Aeration process?

- 1
  
  Excessive aeration absorb too much carbon dioxide and water becomes corrosive .
- 2
  
  Excessive aeration absorb too much oxigen and thus water becomes corrosive .
- 3
  
  It removes oils and decomposes algae and other aquatic product from water .
- 4
  
  It effectively removes volatile gases which is harmful for water .

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