For rock packing low- rate trickling filters what is the hydraulic loading assumed?

What is the filter media made of?

For rock type low filtration rate trickling filters what would be depth assumed while designing it?

While designing a blower for backwash for dual media filters without air scouring what is the velocity considered?

Which of the following causes thickening of the biofilm?

Calculate the diameter of the flocculation zone for the following data: Flow: 200 m3/h. Height considered (SWD):3.5 m

What is the surface area of the River rock (Small) packing material used in trickling filters as the packing medium?

Air is blown in the reverse direction during cleaning of filter beds.