Which are the three ingredients in activated sludge systems?

When the aeration system shuts off, the basin begins to perform as a __

________ is oxidized by heterotypic micro-organisms.

The secondary clarifiers are ____

What does SBR stand for?

How many types of aerators are present?

What is the typical value of the F/M ratio considered for an extended ASP process?

For the removal of phosphorous through Activated Sludge Process (ASP) what would be the Solid retention time considered?