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Phytoremediation and hyperaccumulator plants: uses in research

Also: rhizofiltration, sunflower uranium, hyperaccumulators

Using plants to pull contaminants out of water and soil.

Known properties: Phytoremediation and hyperaccumulator plants

Only what the cited papers report.

  • In sunflowers, almost all uranium removed from water was concentrated in the roots, with root/water concentration ratios up to 30,000. doi:10.1021/es970220l

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Timeline

  1. 1997 Sunflowers remove uranium
  2. 2012 Hyperaccumulators: facts and fiction

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Hyperaccumulators: facts and fiction

Van der Ent, Baker and Reeves reviewed reports of plants that hyperaccumulate metals and metalloids and the criteria for calling a plant a hyperaccumulator.

As reported in: van der Ent, Baker, Reeves et al. (2012). Hyperaccumulators of metal and metalloid trace elements: Facts and fiction. Plant and Soil. doi:10.1007/s11104-012-1287-3

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lab environment 1997

Sunflowers remove uranium

Dushenkov and colleagues found sunflower roots removed uranium from water (rhizofiltration), concentrating it in the roots, and field-tested the system at a former uranium processing site in Ashtabula, Ohio.

As reported in: Dushenkov, Vasudev, Kapulnik et al. (1997). Removal of Uranium from Water Using Terrestrial Plants. Environmental Science & Technology. doi:10.1021/es970220l

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