What would happen if oxygen availability to activated sludge flocs is reduced? 1) It will slow down the rate of degradation of organic matter 2) The center of flocs will becomes anoxic, which would cause death of bacteria and eventually breakage of flocs 3) Flocs would increase in size as anerobic bacteria would grow around flocs 4) Protozoa would grow in large numbers

Options

A. It will slow down the rate of degradation of organic matter
B. The center of floes wi!I become anoxic, which would cause death of bacteria and eventually breakage of floes
C. Floes would increase in size as anaer- obic bacteria would grow around floes.
D. Protozoa would grow in large numbers

Answer

b