Process for reduction of inorganic contaminants from waste streams
AssigneesMAR Systems, Inc., The United States as represented by the Administrator of the U.S. Environmental Protection Agency
InventorsClaude Kennard, Michael A. Gonzalez, David C. Szlag
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Abstract
The invention relates to the use of used alumina to reduce the level of inorganic contaminants, such as mercury and arsenic, from waste fluid streams. The invention further provides a process for reducing the level of mercury or arsenic in fluid streams by contacting the fluid stream with used alumina, such as used Claus catalyst.
Claims20
A process for reducing the level of mercury from an aqueous liquid stream comprising contacting said liquid stream with a sulfur-bearing used Claus catalyst.
A process for reducing the level of mercury from an aqueous liquid stream containing mercury, comprising the steps of
- (a) flowing the liquid stream through a bed containing a sulfur-bearing used Claus catalyst sorbent;
- (b) sorbing mercury from the liquid stream onto the surface of the sorbent;
- and
- (c) allowing the mercury-depleted effluent stream to exit from the outlet of the bed.
Dependencies are inferred from the claim text.