For plastic type high filtration rate trickling filters what would be the organic loading rate assumed?

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

While designing a dual media filter what is the velocity that is assumed?

For plastic type high filtration rate trickling filters what would be the BOD removal rate?

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

Trickling filter can also be called as a biofilter.

What is the shape of a typical trickling filter?

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