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Sequestration of radioactive nickel in fly ash by incorporating nanogoethite

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Abstract

Sequestration of radioactive nickel (63Ni2+) in fly ash coming from hospital wastes incineration plant by incorporating nano-goethite as a function of pH, particle size and the ratio of solid and liquid was investigated under the batch leaching experiments. The synthetic nanogoethite was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and specific surface area (SSA). The admired needle nanogoethite was obtained in terms of XRD, TEM and SSA analysis. Approximate 5% of 63Ni2+ was desorbed from the nanogoethite/fly ash composite under the circum natural pH conditions. The ratio of solid to liquid has little effect on desorption of 63Ni2+ from nanogoethite/fly ash composite. These results indicate that the radioactive nickel in fly ash can be sequestrated by incorporating nanogoethite. The results may play significantly a role in immobilization in situ of trace radionuclides in the natural environment.

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Acknowledgment

This research was supported financially by the key research projects of provincial natural science foundation of department of Education of Anhui (KJ2010A312).

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Authors and Affiliations

  1. The School of Life Science and Environmental Science, Huangshan University, Huangshan, 245041, People’s Republic of China

    L. P. Qian, M. H. Ma, J. B. Wei, D. He & D. H. Cheng

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  1. L. P. Qian
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  2. M. H. Ma
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  3. J. B. Wei
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  4. D. He
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  5. D. H. Cheng
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Correspondence to L. P. Qian.

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Qian, L.P., Ma, M.H., Wei, J.B. et al. Sequestration of radioactive nickel in fly ash by incorporating nanogoethite. J Radioanal Nucl Chem 292, 1215–1219 (2012). https://doi.org/10.1007/s10967-011-1580-2

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  • DOI: https://doi.org/10.1007/s10967-011-1580-2

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