The longer the water is held in the tank, the better the treatment.

What does DAF stand for?

What is dispersed air floatation used to remove?

Which of these chemicals is not used during Dissolved air floatation?

What is the contact zone loading rate for a conventional dissolved air floatation process considered?

Straining refers to the removal of smaller particles from a fluid.

______ is called effluent.

Septic tank is a small scale treatment unit.