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2. Settling
2.1 Solid-liquid settling
Static solid-liquid settling is the result of the force of gravity (which draws the most diverse particles downwards), Archimedes' force (which tends to keep them in suspension) and diffusion forces (which tend to distribute them throughout the volume).
In practice, separation only takes place for particles whose density is at least twice that of the liquid.
A simple container is all that is needed, and the supernatant liquid is aspirated with a pipette, avoiding any agitation so as not to resuspend the particles
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Settling
Filtration
Bibliography
Websites
A3P Services http://www.a3p.org (page consulted on March 20, 2013)
Club français des membranes (CFM) http://www.cfm-mb.fr/ (page consulted on April 03, 2013)
Directories
Suppliers – Distributors
BIORAD http://www.bio-rad.com
FIORONI http://www.filtres-fioroni.com
HYFLUX laboratory http://www.hyfluxmembranes.com
...Standards and norms
- Qualité de l'eau : dosage des matières en suspension. Méthode par filtration sur filtre en fibres de verre - NF EN 872 AFNOR - 2005
- Méthode de détermination de la porosité - ASTM F316 - 2011
- Définition de la vitesse de filtration sur filtre libre - DIN 53137 - 1967
- Teneur en cendre des filtres papiers (0,1 à 0,2 %) papier ordinaire pour analyse qualitative et moins de 0,01 % pour l'analyse quantitative...
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