What process helps to remove impurities from water, often utilizing coagulants?

The correct answer is focused on flocculation, a critical process in water treatment that enhances the removal of impurities. Flocculation involves the addition of coagulants, which are substances that promote the aggregation of suspended particles in water. As coagulants are mixed into the water, they bind with these tiny particles, encouraging them to clump together to form larger aggregates known as "flocs."

These flocs are then easier to remove from the water through subsequent processes, such as sedimentation and filtration. By facilitating the formation of these larger clumps, flocculation significantly improves the clarity and quality of the water before it undergoes further treatment or distribution.

This process is essential in various water treatment facilities, particularly during the initial stages of purification, making it a fundamental aspect of achieving clean and safe drinking water. While filtration, disinfection, and ozonation are all important water treatment methods, they serve different purposes and do not primarily involve the use of coagulants to remove impurities in the same way that flocculation does.