Which of these type of screen can be used both as a fine and coarse screen?

Which of these screens is used to remove secondary suspended solids?

At what velocity will the particles settle down?

From which of these type of screens there is a possibility of odour emission?

A grit chamber is usually installed __ primary sedimentation tanks.

What is the approach velocity for grit bearing wastewaters?

In drum type screen, which axis does the drum rotate?

What is the cleaning period for manual grit chambers?