Question

Rapid sand filters are very efficient in removal of color.

(a) True

(b) False

I have been asked this question in an online interview.

Query is from Comparison Between Slow and Rapid Sand Filter topic in section Filtration of Environmental Engineering

Answer 1

The correct option is (a) True

To elaborate: Rapid sand filters are very efficient in the removal of color and the intensity of color can be brought down below 3 on cobalt scale.