filtration

https://doi.org/10.1351/goldbook.F02388
The process of @S05544@ of phases; e.g. the separation of suspended solids from a liquid or gas, usually by forcing a @C00863@ or liquid through a porous medium.
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2188 [Terms] [Paper]