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

Calculate the area of the tube settlers for the given data: Flow: 1500 mm3/h Surface loading rate: 7 m2/m3/h

While designing an HRSCC what is the velocity assumed?

Calculate the flocculation volume for an HRSCC for the following data. Flow: 300 m3/h.

What is the bulk density of pebbles assumed while designing a Pressure sand filter?

In which type of trickling filter is nitrogen oxidized?

________ is shifted to keep an ample space for filtering media to rotate.

What is the surface wash rate?