What is the agglomeration of colloidal particles after coagulation called?

The agglomeration of colloidal particles after coagulation is referred to as flocculation. This process involves the clumping together of small particles into larger clusters, or flocs, which can then be more easily removed from the water.

During coagulation, chemicals are added to the water to destabilize the colloidal particles, which are typically too small to be removed by sedimentation or filtration alone. Once these particles are destabilized, they can begin to bind together, forming larger aggregates through the flocculation process. This is essential in water treatment, as it enhances the efficiency of subsequent removal processes, such as sedimentation.

Flocculation is critical in many water treatment facilities to ensure that the water quality meets safety standards and to improve the clarity of drinking water. Understanding this step is crucial for operators, as it influences the effectiveness of the entire treatment process.