What is the porosity of these synthetic media?

As the compression increases, the porosity in filter bed _____

Which of the following causes thickening of the biofilm?

What is the mixed liquor?

Calculate the clarifier volume for a HRSCC for the following data. Flow: 500 m3/h.

While designing an HRSCC what is the detention time assumed for the draft tube?

Calculate the diameter of the draft tube for the following data. Flow: 1100 m3/h. Height of the draft tube: 1.5 m

For a high rate filter calculate the diameter of the filter required for a flow of water of 200 m3/h.