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Iron making industry has generated a large amount of waste slag containing iron. Feasibility of utilizing the slag to remove toxic Cr(VI) from aqueous phase was investigated in a batch system. Main mechanism of Cr(VI) removal by the slag was its reduction into Cr(III) by the Fe(II) released from the slag under acidic condition. One gram of the slag could remove 56.1 (±0.5) mg of Cr(VI) at pH 2. The...
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