1.

What would happen if oxygen availability to activated sludge flocs is reduced?A. It will slow down the rate of degradation of organic matterB. The centre of flocs will become anoxic, which would cause death of bacteria and eventually breakage of flocsC. Flocs would increase in size as anaerobic bacterial would grow around flocsD. Ptotozoa would grow in large numbers

Answer» Correct Answer - B


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