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Submitted Chris Haslego, Nov 21 2011 11:21 AM | Last updated Nov 21 2011 01:29 PM




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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