Effect of pH on Aqueous Se(IV) Reduction by Pyrite - Environmental

Mar 8, 2011 - ...
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Effect of pH on Aqueous Se(IV) Reduction by Pyrite Mingliang Kang,†,‡ Fanrong Chen,*,† Shijun Wu,† Yongqiang Yang,† C. Bruggeman,§ and L. Charlet|| †

Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China Graduate University of Chinese Academy of Sciences, Beijing 100049, China § SCK.CEN, Research unit R&D Waste Disposal, Boeretang 200, B-2400 Mol, Belgium Environmental Geochemistry Group, LGIT-OSUG, Grenoble University, 38041 Grenoble Cedex 9, France

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bS Supporting Information ABSTRACT: Interaction of aqueous Se(IV) with pyrite was investigated using persistently stirred batch reactors under O2-free (97%. All other chemicals used were of analytical grade. The water used was deionized (18.3 mΩ) and was boiled out before introducing to the glovebox. Batch Experiments. Two series of batch experiments were conducted in an oxygen-depleted (