Alternatives
For certain situations, such as separating an aqueous substance from a solid one, filtering may be replaced with decanting or centrifugation. Magnets can be used to remove magnetic contaminants from lubrication oils etc. Separation based on differences in physical and/or chemical properties can be achieved through a variety of techniques, including chromatography.
Read more about this topic: Filter (chemistry)
Famous quotes containing the word alternatives:
“The literal alternatives to [abortion] are suicide, motherhood, and, some would add, madness. Consequently, there is some confusion, discomfort, and cynicism greeting efforts to “find” or “emphasize” or “identify” alternatives to abortion.”
—Connie J. Downey (b. 1934)
“The last alternatives they face
Of face, without the life to save,
Being from all salvation weaned
A stag charged both at heel and head:
Who would come back is turned a fiend
Instructed by the fiery dead.”
—Allen Tate (1899–1979)
“Clearly, society has a tremendous stake in insisting on a woman’s natural fitness for the career of mother: the alternatives are all too expensive.”
—Ann Oakley (b. 1944)