Turbidity Sensors in Flocculant Dosing – Dewborn

Flocculant refers to the chemical or substance added to a suspension to accelerate the rate of flocculation or to strengthen the flocs formed during flocculation. Flocculants are agents that make fine and sub fine solids or colloids suspended in the solution form large loose flocs through bridging, thus achieving solid-liquid separation. Flocculants are substances that promote the agglomeration of fine particles present in a solution, creating a floc, which then floats to the surface (flotation) or settles to the bottom (sedimentation). This can then be more easily removed from the liquid. Flocculants can be organic or inorganic, and come in various charges, charge densities, molecular weights, and forms. Organic polymeric flocculants are most widely used today, due to their ability to promote flocculation with a relatively low dosage.