For example, fresh 1 per cent suspensions of the high-purity, amorphous silica ‘Aerosil’ (Dogussa, Germany) are rapidly flocculated by a 0.004 per cent solution of polyacrylamido of high ...

In the unstable and flocculated system ... When the flocculation of a stable suspension is brought about by a decrease in zeta potential, both settling-rate and sedimentation-volume increase ...