To use all functions of this page, please activate cookies in your browser.

my.chemeurope.com

With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.

- My watch list
- My saved searches
- My saved topics
- My newsletter

## Sedimentation*This article refers to the scientific phenomenon of sedimentation. For sedimentation in the treatment of water and wastewater, see Sedimentation (water treatment).*
## Additional recommended knowledgeIn a sedimentation experiment, the applied force accelerates the particles to a terminal velocity In many cases, the motion of the particles is blocked by a hard boundary; the resulting accumulation of particles at the boundary is called a sediment. The concentration of particles at the boundary is opposed by the diffusion of the particles. The sedimentation of particles under gravity is described by the Mason-Weaver equation, which has a simple exact
solution. The sedimentation coefficient The sedimentation of particles under the centrifugal force is described by the Lamm equation, which likewise has
an exact solution. The sedimentation coefficient Particles with a charge or dipole moment can be sedimented by an electric field or electric field gradient, respectively. These processes are called electrophoresis and dielectrophoresis, respectively. For electrophoresis, the sedimentation coefficient corresponds to the particle charge divided by its drag (the electrophoretic mobility). Similarly, for dielectrophoresis, the sedimentation coefficient equals the particle's electric dipole moment divided by its drag. ## See also- Coagulation (disambiguation)
- Flocculation
Categories: Laboratory techniques | Separation processes |

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sedimentation". A list of authors is available in Wikipedia. |