Water Treatment Operator-in-Training (OIT) 2025 – 400 Free Practice Questions to Pass the Exam

Flocculation is a critical process in water treatment that involves the aggregation or clumping of small suspended particles into larger masses called flocs. This occurs when a coagulant is added to the water, which destabilizes the particles and allows them to bond together. Flocculation helps enhance the efficiency of subsequent processes, such as sedimentation and filtration, by facilitating the removal of impurities, including colloids and some pathogens. The larger flocs that result from this process can be more easily removed from the water during treatment, leading to cleaner and clearer water. Understanding flocculation is essential for water treatment operators, as it directly impacts the effectiveness of water purification methods.