Define Velocity Gradient Model Flocculator

by Francois A. van Duuren,

Serial Information: Journal of the Sanitary Engineering Division, 1968, Vol. 94, Issue 4, Pg. 671-682

Document Type: Journal Paper


The importance of flocculation in the removal of up to micron sized mineral and biological particles led to the study of a defined velocity gradient flocculator. The design desiderata are outlined and the theoretical basis given. The coaxial cylinder, Couette device developed is described and its hydraulic testing discussed. Mention is made of floc flow patterns observed in flocculation tests with quartette particles and alum.

Subject Headings: Flocculation | Particle velocity | Particle size distribution | Minerals | Biological processes | Cylinders | Hydraulics | Flow patterns

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