A decantation is the action to separate two produced Liquide S
from Polarité S and different densities. Some liquid are polar
(for example the Eau) and the other non-polar ones (for example
the Huile). These compounds are nonmiscible (they do not mix).
At rest, under the action of gravity, the two products will
separate into two phases. The phase having the the largest
Density going to the bottom and the lightest phase (the lowest
density) being with the top. To separate the two products, one
uses a Funnel then separating. The decantation is a simple
technique used to separate two nonmiscible products. There
exists a solution so that the emulsion is quasi stable and
cannot elutriate easily, one uses a Tensio-actif. During the
decantation, from time to time, it is necessary to depressurize.
I.e. to evacuate gas by opening the tap and by stopping the
other end. Solid matter decantation The decantation can also
refer to the solid matter separation in suspension, like
desanding at the time of the Traitement of th