Knowledge

Sedimentation

Test conditions, flocculation and the limits of scale-up to the plant.

Sedimentation 4 min

How to measure tailings settling velocity

Record the height of a defined interface or level, `h(t)`, during a test with documented conditions. Over an interval where the curve is approximately linear, the downward velocity can be estimated as `v_s = (h_1 -…

Published

Sedimentation 3 min

How much flocculant should a thickener use?

There is no universal dosage that can be defined without considering the incoming material and the response required. The necessary dosage depends, among other conditions, on particle-size distribution, the amount of…

Published

Sedimentation 4 min

What an automated settling test measures—and does not prove

An automated system can record the evolution of an interface or associated signal during a test and derive a curve, characteristic times and slopes under documented conditions. It can also improve the traceability of…

Published