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Surfactants Enhanced Soil Arsenic Phytoextraction Efficiency by Pteris vittata L.

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Abstract

Soil arsenic (As) pollution has become a global problem. It is urgent to improve the phytoextraction efficiency of soil As. This study found chemical activators (Span 80/SDS and GSH/Span 80/SDS) that can significantly improve the availability of As and the phytoextraction efficiency of As by Pteris vittata L. in As-contaminated soil. Compared with the control, in the soil screening experiment, Span 80/SDS and GSH/Span 80/SDS significantly increased available As in soil by 73.4% and 81.4%, respectively. And in the soil pot experiment, the Span 80/SDS and GSH/Span 80/SDS significantly increased the As concentration in the pinnae of Pteris vittata L. by 53.4% and 41.2%, respectively, and the total As amount extraction by Pteris vittata L. increased significantly by 31.7% and 94.2%, respectively. The results suggest that adding Span 80/SDS and GSH/Span 80/SDS to As-contaminated soil can be considered as an effectively method to improve the efficiency of phytoextraction.

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Acknowledgements

This project was supported by the Special Plan in the Major Research & Development of the 13th Five-Year Plan of China (Grant No. 2016YFD0800802).

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Correspondence to Shuijiao Liao.

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Xiang, D., Liao, S., Tu, S. et al. Surfactants Enhanced Soil Arsenic Phytoextraction Efficiency by Pteris vittata L.. Bull Environ Contam Toxicol 104, 259–264 (2020). https://doi.org/10.1007/s00128-019-02777-w

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  • DOI: https://doi.org/10.1007/s00128-019-02777-w

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