Q. During sludge digestion

A
Acidity condition should prevail
B
Alkaline condition should prevail
C
Acidity or alkaline condition should prevail
D
Neutral condition should prevail
Solution:
  • During sludge digestion alkaline condition should prevail.
  • The desired range of pH values for the efficient digestion of sludge is 6.5 to 7.5.
  • It will enhance the activity of bacteria.
  • Digested sludge is alkaline in nature and pH is slightly above 7.
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