Which of the following causes thickening of the biofilm?

While designing a multimedia filter what is the velocity that is assumed?

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

The settling tank which is followed after the Trickling filter has which of the following characteristic?

What is the rate of backwash water?

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

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

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