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Article | REF: F2730 V1

Centrifugation and decantation

Authors: Bernard VEYNACHTER, Pascal POTTIER

Publication date: March 10, 2007

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3. Decanters

Decanters are centrifugal machines fitted with a screw whose bowl rotates on a horizontal axis. They are mainly used to clarify (two-phase decanters) mixtures with a high sediment content (up to 60%). Three-phase decanters are used to separate liquid – liquid – solids.

Their lower g number limits their use to suspensions that settle more easily.

Diagram of a clarifier settling bowl
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