Raven - Centrifuge Use and Application

Tubes filled with a sample are spun at high speed to separate the liquid from the solids. Solids are concentrated into the bottom to the tube. The amount of solids in the bottom of the tube represents the “Percent of Solids” of the sample. Fifteen minutes is all it takes to determine solids concentrations that are used for return and waste sludge flow rates. Concentrations are easily correlated to TSS calculations using the Weight to Concentration ratio formula.