What role do flocculants play in water treatment?

Flocculants play a crucial role in the process of coagulation and sedimentation in water treatment. They are chemical agents that promote the agglomeration of fine particles and colloids suspended in water. When flocculants are introduced into the water, they cause these small particles to clump together, forming larger aggregates known as flocs.

This clumping is essential because it significantly increases the size and weight of the particles, making them easier to settle at the bottom of a treatment tank during the sedimentation process. By enhancing the removal of suspended solids, flocculants improve the overall efficiency of water treatment, leading to clearer water that can be further processed or treated for safe drinking.

The other options mentioned do not accurately describe the primary function of flocculants in water treatment. Nutrient provision for aquatic life, flavor enhancement, and pressure stabilization are not relevant to the role of flocculants in the coagulation and sedimentation processes.