What action is required during flocculation to enhance particle contact?

During the flocculation process, stirring is a critical action that enhances particle contact. Flocculation involves the aggregation of fine particulates into larger clusters or flocs, which can then be removed from the water through subsequent processes such as sedimentation or filtration.

The stirring mechanism plays a vital role by creating movement in the water, which increases the collision frequency between particles. This agitation helps the tiny particles to come together more effectively, facilitating the formation of larger aggregates. Optimizing the mixing conditions, such as the speed and duration of stirring, ensures that the particles have sufficient opportunity to contact each other and form flocs, which is essential for effective water treatment.

While aggregation is a goal of the flocculation process, it does not specifically refer to the action taken to enhance particle interaction. Filtration and chlorination are separate processes that occur after flocculation and are not directly related to improving particle contact during this specific phase.