What is the main purpose of the filtration process in water treatment?

The primary purpose of the filtration process in water treatment is to remove suspended colloidal matter. This includes particles such as sediment, dirt, and other small particles that can affect the clarity and quality of water. Filtration works by passing water through media that physically removes these impurities, thereby ensuring that the water is clearer and more aesthetically pleasing, as well as safer for consumption.

While other processes such as disinfection are crucial for eliminating pathogens or bacteria, the specific role of filtration focuses on improving water quality by dealing with particles that do not settle out of the water naturally. Unlike adding minerals or increasing the temperature, which serve different treatment purposes, filtration is a critical step for achieving clarity and removing undesirable particulates. This enhances the overall effectiveness of subsequent treatment processes, such as disinfection.