Abstract
Hydroponic experiments were conducted on the removal of uranium, heavy metals and nutrients from the effluent of a uranium mill tailings repository in South China by Azolla–Anabaena. The plant–microbe symbiont was kept in the effluent for 30 days, and it was found that U, Fe, Mn, Cu, Zn, Pb, Cd, total phosphorus (TP), total nitrogen (TN) and SO42− reduced by 87.6, 99.1, 98.8, 88.2, 91, 78.3, 77.5, 93.4, 98.7 and 76.7%, respectively. Specifically, the concentration of uranium reduced to 0.039 mg L−1, which is below the limits of contaminants by the Department of Environmental Protection of China. The concentration of Fe, Cu, Zn, Pb, TP and TN in the effluent reached the quality standard for drinking water. The results showed that Azolla–Anabaena can be used for the bioremediation of the effluent from the uranium mill tailings repository.
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This research was supported by National Natural Science Foundation of China (U1401231, 11505093 and 11305087), Program of Science and Technology Department of Hunan Province (2016Sk2041).
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Xinwei, H., Yongdong, W., Nan, H. et al. Bioremediation of effluent from a uranium mill tailings repository in South China by Azolla–Anabaena. J Radioanal Nucl Chem 317, 739–746 (2018). https://doi.org/10.1007/s10967-018-5934-x
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DOI: https://doi.org/10.1007/s10967-018-5934-x