JEQ -- Zhang et al. 34 (2): 487 Figure IG3

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Fig. 3. Removal of Se(VI) in 10 mM Cl^– (left figures) and SO^2–₄ (right figures) solutions by zerovalent iron (ZVI) under an open condition. (A) Changes in pH and Eh during the removal of Se(VI). (B) Removal of Se(VI) in the solutions. (C) Selenium species in the ZVI and iron oxyhydroxides (Fe_OH) extracted by a 0.35 M PO^3–₄ solution (pH 12.6). Error bars show one standard deviation (n = 3).