What is centrifugation ?
Centrifugation consists simply to use a device called centrifuge
How does a centrifuge work ?
consists of containers (for receiving heterogeneous mixtures) which can
be rotated fast around an axis.
When a body is rotating, it undergoes what is called a centrifugal
force which drives it to the bottom of the container (this force
increases with the speed of rotation).
In the example of the heterogeneous mixture of water and soil,
particles no longer fall to the bottom because of their weight but
because of the centrifugal force.
The centrifugal force being stronger than the weight, the solids fall
to the bottom faster.
centrifugation can thus produce the same results as decantation but a
much faster than it.