In which stage of the SBR is aeration performed?

Which of the following is not true regarding mechanical aeration?

What is the shape of the oxidation ditch?

What is the shape of the biofilm carrier?

The biofilm carrier movement is caused by ____

What is the retention time considered for aeration tanks in a moving bed bioreactor system?

How many types of BOD are present?

Oxidation ditch uses __ to remove biodegradable organics.