What does sand filter remove?

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

For rock packing low- rate trickling filters what is the hydraulic loading assumed?

What is the porosity of these synthetic media?

What does SSCC stand for?

What is the porosity range during expansion of the filter bed?

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

What is the life of the media used?