Question

What would happen if oxygen availability to activated sludge flocs is reduced?

Options

• It will slow down the rate of degradation of organic matter.

• The center of flocs will become anoxic, which would cause death of bacteria and eventually breakage of flocs.

• Flocs would increase in size as anaerobic bacteria would grow around flocs.

• Protozoa would grow in large numbers.

Answer 1

The center of flocs will become anoxic, which would cause death of bacteria and eventually breakage of flocs.