Fuel Tech, Inc.
Removal of selenium from water with kaolinite
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Abstract:
The description relates to a composition and a method for reducing the concentration of selenium in water. Contaminated water is contacted with a kaolinite clay characterized by a removal efficiency for selenatearsenate of at least 40 wt % at ambient temperature. The adsorption process is fast. Following sufficient contact, the water is separated from the kaolinite clay. In a preferred form, the kaolinite clay has high surface acidity.
Status:
Grant
Type:
Utility
Filling date:
21 Aug 2020
Issue date:
17 May 2022