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Method for Removing Soluble Selenium from Acidic Waste Water.
U S Pat 3 933 635 1976 Jan; :
Soluble selenium is removed from zinc smelting acidic waste water by treating the effluent with powdered zinc at 25 deg-85 deg c for a time sufficient to reduce a substantial portion of the soluble selenium to insoluble metallic selenium, which is recovered by filtration or decantation.
U.S. Pat. 3,933,635; Jan. 20, 1976; Chem. Abstr. 84:184,613R
Page last reviewed: October 1, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division