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Based on the stoichiometry of Eqn 2 and assuming that Cascade®contains 14 moles <br />' sulfur/gallon (data obtained from product literature), 38 mL of Cascade° are needed to <br /> reduce I g of Cr(VI) However, when contacted by PRIMA Environmental, the <br /> manufacturer (Best Sulfur Products) was unwilling to recommend a dose for in situ <br />' treatment of Cr(VI), probably because Cascade® is a non-selective reducing agent that <br /> may react with non-target compounds, including soil components and air <br />�} 11.3 Study Objectives <br /> The goals of the proposed treatability testing were to <br /> • confirm removal of Cr(VI) by each reducing agent, <br /> • estimate the amount of reducing agent required, and <br /> evaluate the effect of each reducing agent on secondary water quality parameters <br /> such as pH and metals concentration <br />�} <br /> PRIMA Environmental 2 Eval of Reductants <br /> January 19 2005 ATC-Diamond Walnut <br />