Foam separation is a

chemical process In a scientific sense, a chemical process is a method or means of somehow changing one or more chemicals or chemical compounds. Such a chemical process can occur by itself or be caused by an outside force, and involves a chemical reaction of some ...

which falls into a category of separation techniques called " Adsorptive bubble separation methods".Adsorptive bubble separation methods, R. Lemlich (1968) Industrial and Engineering Chemistry, Vol. 60 (10) 16-29 It is further divided into

froth flotation Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, wher ...

and foam fractionation. Foam separation is essential in order to prevent contamination of fermentation medium through the foam by external microbes.

References

Chemical processes {{chem-process-stub