Reduction of Cr(VI) to Cr(III) by Wetland Plants: Potential for In Situ Heavy Metal Detoxification

Using X-ray spectroscopy, we show that Eichhornia crassipes, supplied with Cr(VI) in nutrient culture, accumulated nontoxic Cr(III) in root and shoot tissues

C. Mel Lytle

2002

Scholarcy highlights

  • Using X-ray spectroscopy, we show that Eichhornia crassipes, supplied with Cr(VI) in nutrient culture, accumulated nontoxic Cr(III) in root and shoot tissues
  • The chemical species of Cr in other plants, collected from wetlands that contained Cr(VI)-contaminated wastewater, was found to be Cr(III). We propose that this plant-based reduction of Cr(VI) by E. crassipes has the potential to be used for the in situ detoxification of Cr(VI)-contaminated wastestreams

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