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  • INTERVIEW QUESTIONS CHEMICAL ENGINEERING DETAILS
    Question :
    How can I treat a waste stream containing both hexavalent chromium and arseni
    Category Chemical Engineering Interview Questions
    Rating (0.8) By 76 users
    Added on 6/18/2011
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    Answers:

    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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