Flocculation

Jan 31, 2026

Flocculation is the process by which fine particles suspended in a liquid aggregate together to form larger clusters (flocs).

Common applications:

  • Water treatment: removes impurities by making small particles settle faster
  • Wine making: clarifies wine by aggregating sediment
  • Wastewater treatment: separates suspended solids

By increasing effective particle size, flocculation increases sedimentation rates according to Stokes’ Law, enabling easier separation of particles from liquid.

Related: Sedimentation, Colloids, Stokes’ Law