Brownian flocculation of negatively charged latex particles with low charge density polycation at various ionic strengths

- Bridging flocculation without mixing flow enabled colloid stability analysis.
- The maximum rate of flocculation i.e., the optimum dosage, was confirmed at IEP.
- Steric effect is competing with bridging even at the optimum dosage.
- The IEP shifts to lower polymer dosage with increasing ionic strength.