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Assessing the Potential of Phytoremediation at a Site in the U.K. Contaminated With Cs

Assessing the Potential of Phytoremediation at a Site in the U.K. Contaminated With Cs,10.1080/15226510108500062,International Journal of Phytoremedia

Assessing the Potential of Phytoremediation at a Site in the U.K. Contaminated With Cs   (Citations: 9)
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Spinacia oleracea L. cv. ‘Bloomsdale’, Beta vulgaris L. cv. ‘Flavescens’, Brassica juncea L. ‘OB825’, and Helianthus annuus L. cv. ‘Oranges and Lemons’ were grown for 8 weeks at a site contaminated with Cs at Bradwell Nuclear Power Station, UK. The site was a trench approximately 1.5 m deep, 2 m wide, and 100 m long in ‘made ground’ consisting of alluvium with traces of illites, kaolinites, and smectites. Cs activity concentration was measured in individual plants after 8 weeks growth and the soil in which they grew. The biomass produced and total Cs removed to shoots differed significantly between species but Cs activity concentrations and Transfer Factors (TFs) did not. B. vulgaris produced the most biomass and removed the greatest amount of Cs. For all plants, and within each taxon, plants growing at low soil Cs activity concentrations had significantly greater TFs than those growing at high soil Cs activity concentrations. It is concluded that selecting plant taxa suited to a particular site can be an effective way of improving phytoremediation rates, that there is much scope for adjusting harvesting intervals to 8 weeks or less without affecting TFs, and that estimates of time taken for Cs removal by phytoremediation should consider that TFs may increase as soil concentrations decrease. With refinements in methodology, phytoremediation has the potential to contribute significantly to decontamination of the site at Bradwell.
Journal: International Journal of Phytoremediation - INT J PHYTOREMEDIAT , vol. 3, no. 3, pp. 321-333, 2001
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    • ...Phytoremediation effectiveness in removing Cs from contaminated soils has been demonstrated in both greenhouse and field tests (Dushenkov et al. 1999; Lasat et al. 1997, 1998; Willey et al. 2001), and its use at the INL has been demonstrated using the naturalized Amaranthaceous plant Kochia scoparia (Lee 2000)...

    Lawrence L. Cooket al. Evaluation of four grasses for use in phytoremediation of Cs-contamina...

    • ...Consequently, the application of phytoremediation to clean up land contaminated with these radionuclides (primarily 137Cs) has focused mainly on the selection of high biomass crop plants with relatively high accumulation potential and increased annual croppings to increase biomass production and enhance removal rates (Lasat et al, 1997; Lasat et al, 1998; Willey et al, 2001)...

    M. V. Duttonet al. Assessing The Potential of Short Rotation Coppice (Src) for Cleanup of...

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