What role does filtration play in water treatment?

Filtration is a critical process in water treatment, primarily aimed at enhancing water quality by removing solid particles and impurities. This process typically involves passing water through various material layers, such as sand, gravel, or specialized membranes, effectively separating out unwanted substances like dirt, sediments, and some microorganisms. The result is cleaner, clearer water that is more suitable for consumption and other uses.

In the context of water distribution systems, the importance of effective filtration cannot be overstated, as it directly impacts the safety and palatability of the water supplied to the public. Enhanced removal of contaminants ensures that the water meets health standards and is safe for everyday use. While the other options touch upon various aspects of water treatment, they do not accurately reflect the fundamental purpose of filtration in this context.