List the events that reduce the Biological Oxygen Demand (BOD) of a pr

1.	List the events that reduce the Biological Oxygen Demand (BOD) of a primary effluent during sewage treatment.
Answer» • Useful aerobic microbes grow rapidly and form flocs. • Flocs are masses of bacteria associated with fungal filaments to form mesh-like structures. • The growing microbes consume organic matter and thus reduce the biochemical oxygen demand (BOD).

List the events that reduce the Biological Oxygen Demand (BOD) of a primary effluent during sewage treatment.

Answer»

• Useful aerobic microbes grow rapidly and form flocs.

• Flocs are masses of bacteria associated with fungal filaments to form mesh-like structures.

• The growing microbes consume organic matter and thus reduce the biochemical oxygen demand (BOD).