What does SBR stand for?

________ combines aeration basin and secondary clarifier into single unit.

What is the monthly concentration of solids produced by secondary sewage effluent?

What is required to keep the activated sludge suspended?

Calculate the theoretical oxygen requirement for the following details. Flow: 200 m3/h BOD load: 800 mg/L

Calculate the number of diffusers for the following. Blower Flow rate: 535 m3/hr Coarse diffusers are used.

Mechanical stirring can be done instead of injection of air from the bottom.

An activated sludge system consists of two components, an aerator and ____