Screen

A screen is a mechanical device used in wastewater treatment to remove large solids and debris from wastewater streams, preventing damage to downstream equipment and facilitating further treatment processes.

Types of Screens:

1. Bar Screens: Use parallel bars to capture large debris.
2. Rotary Drum Screens: Utilize rotating drums with fine mesh to filter solids.
3. Step Screens: Consist of movable steps to trap solids.
4. Fine Screens: Employ finer mesh or perforated plates to capture smaller particles.