A model for flocculation in turbulent flow

A theoretical analysis was undertaken to predict the time dependence of the flocculation of colloids with polymers under the conditions that flocs were destroyed by hydro-dynamic forces and that floc destruction was partially irreversible. Calculations were based on the heteroflocculation of a mixture of large (3 μ radius) and small (0.1 μ radius) spheres. Irreversibility was introduced by postulating that the areas of the surfaces engaged in …