Knowledge about the stability of colloidal suspensions is of great importance in wastewater treatment, as clarification can only take place in unstable dispersions when coagulation of particles occurs. In this application report, coagulation of bentonite clay, provoked by supplementation with a clarifying agent was investigated using a Litesizer 500.
The necessary amount of additive to achieve coagulation of a bentonite suspension was determined by measuring the zeta potential and particle size over added flocculant concentration. The “Dosing over volume” measurement mode in the Kalliope software could be used to set up an automated measurement workflow for this application.
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