Asbestos fibers are removed from water by filtration through a bed of magnesium oxide. Aqueous suspensions (1-10 ppm) of fibers of chrysotile, crocidolite, and amphibole cummingtonite-grunerite were percolated through a 0.5-1.0 Cm layer of mgo. No fibers were found in the effluent water
U.S. Pat. 4,181,607, Jan. 1, 1980; Chem. Abstr. 91:128,869M
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