What is the shape of a typical trickling filter?

What is the surface area of the plastic conventional packing material used in trickling filters as the packing medium?

Which of the following is not true in case of closing the top of the vessel?

While designing a high rate filter what would be the velocity assumed?

The fine flocs escape and cannot b captured by tube settlers.

Calculate the surface area of the flocculation zone for the following data. Flow: 300 m3/h. Rise rate :1.2 m/h

Hindered zone settling refers to the suspensions of intermediate concentration.

For rock type of packing in intermediate filtration trickling filters what is the hydraulic rate considered?