For rock type low filtration rate tricking filters what would be the BOD removal rate?

What is the depth of the trickling filter?

What is the TSS at the outlet of the Pressure Sand Filter (PSF)?

What is the depth of washing during high-rate water backwash?

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

Biological action takes place in a rapid filtration unit.

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

While designing a clarifier what is the maximum limit velocity that is assumed?