What type of contaminants can filtration remove?

Filtration is a widely used method in water treatment that primarily targets the removal of larger physical contaminants such as dirt, debris, sediment, and other particulate matter. This process involves passing water through a medium—like sand, carbon, or a specialized filter—that traps these larger particles, thereby clarifying the water and improving its overall quality.

While some filtration systems can remove certain bacteria, viruses, or parasites to an extent, it's important to note that standard filtration techniques are usually not effective for all microorganisms or dissolved substances. Dissolved chemicals and heavy metals may require different treatment processes, such as chemical coagulation or reverse osmosis, to effectively remove them from water.

Thus, the primary role of filtration is centered around the removal of larger solid particles, making the identification of dirt and debris as a correct choice for what filtration can effectively remove.