What is the shape of a typical trickling filter?

Tube settlers are operated in which mode?

For plastic type high filtration rate trickling filters what would be depth assumed while designing it?

Which of the following causes thickening of the biofilm?

While designing a pump for backwash for a filter what will be the velocity assumed?

What is the nominal spacing between the plates?

What does sand filter remove?

Calculate the diameter of a multimedia filter with the following data. Flow: 2200 m3/hr Velocity: 18 m/hr