Process for removing arsenic from aqueous streams

Process for removing arsenic from aqueous streams

Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the arsenic in the +5 oxidation st...

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Hauptverfasser: Witham, Richard Donald, McNew, Edward Bayer, Burba, III, John Leslie
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Sprache:eng
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creator Witham, Richard Donald
McNew, Edward Bayer
Burba, III, John Leslie
description Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the arsenic in the +5 oxidation state from the aqueous phase, normally by contacting the treated feed with alumina or other precipitating agent containing cations in the +3 oxidation state.
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title Process for removing arsenic from aqueous streams
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