What type of filter primarily removes large, solid waste from water?

What type of filter primarily removes large, solid waste from water?

• A. Biologic
• B. Mechanical
• C. Chemical
• D. Activated carbon

Answer: (B)

Mechanical filtration removes large solids by using a physical barrier—like screens, meshes, or media beds—that trap chunks of debris as water passes through. This type of filter is designed to capture grit, sand, leaves, and other sizable particles before the water moves on to other treatment steps, protecting pumps and downstream filters. Other filtration types target dissolved substances or rely on biological processes or adsorption. Biological filters use microbes to metabolize organic contaminants, chemical filters remove dissolved chemicals, and activated carbon adsorbs organics and odors. Because it focuses on blocking and removing large solids, this is the filter type that mainly handles large, solid waste.

Mechanical filtration removes large solids by using a physical barrier—like screens, meshes, or media beds—that trap chunks of debris as water passes through. This type of filter is designed to capture grit, sand, leaves, and other sizable particles before the water moves on to other treatment steps, protecting pumps and downstream filters. Other filtration types target dissolved substances or rely on biological processes or adsorption. Biological filters use microbes to metabolize organic contaminants, chemical filters remove dissolved chemicals, and activated carbon adsorbs organics and odors. Because it focuses on blocking and removing large solids, this is the filter type that mainly handles large, solid waste.