Flocculants play a crucial role in modern water treatment processes, especially in wastewater and industrial effluent systems. A flocculant is a chemical agent that destabilizes suspended and colloidal particles in water, allowing them to aggregate into larger flocs that can be removed by sedimentation or flotation. In water treatment, flocculants are widely used to improve solid–liquid separation efficiency.
When a flocculant is added to water, it interacts with charged particles and disrupts their natural stability. Through mechanisms such as electric double layer compression and charge neutralization, the dispersed particles begin to lose stability. Proper mixing during water treatment increases collision frequency, enabling impurities to form microflocs and later grow into visible flocs.