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Chemical and Process Engineering Resources

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Category: Chemistry Basics
Question: How can I treat a waste stream containing both hexavalent chromium and arsenic?
Keywords: hexavalanet,chromium,arsenic,precipitation,removal,waste,streams,reducing,reduce,sodium,metabisulfite,sulfur,dioxide,bisulfite
Answer: Waste streams that contain these types of mixtures are often treated in two or more reducing tanks. Strong reducing agents such as sodium metabisulfite, sulfur dioxide, and sodium bisulfite are often used.


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