Which component removes large objects when treating wastewater?

Which component removes large objects when treating wastewater?

• A. Screens
• B. Filters
• C. Grinders
• D. Sedimentation

Answer: (A)

Removing large objects happens early in wastewater treatment with screens. Screens act like barriers with bars or openings that catch big debris as the water flows through, protecting pumps, pipes, and downstream equipment from clogs and damage. Filters come later to grab finer particles, not the large items, while grinders are used to break up solids that get through the screen rather than removing the large objects themselves. Sedimentation is a gravity-based step that settles solids further along the process, not the initial removal of large debris. So the best answer is screens because they physically remove the large objects from the influent stream.

Removing large objects happens early in wastewater treatment with screens. Screens act like barriers with bars or openings that catch big debris as the water flows through, protecting pumps, pipes, and downstream equipment from clogs and damage. Filters come later to grab finer particles, not the large items, while grinders are used to break up solids that get through the screen rather than removing the large objects themselves. Sedimentation is a gravity-based step that settles solids further along the process, not the initial removal of large debris. So the best answer is screens because they physically remove the large objects from the influent stream.