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

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

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

Radial tube header is designed to remove ___

While designing a blower for backwash for sand filters with air scouring what is the velocity considered?

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

While designing a blower for backwash for multimedia filters with air scouring what is the velocity considered?

Trickling filter can also be called as a biofilter.