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Review
. 2023 Jan 19;16(3):954.
doi: 10.3390/ma16030954.

Solidification/Stabilization Technology for Radioactive Wastes Using Cement: An Appraisal

Ismail Luhar  1 , Salmabanu Luhar  2 , Mohd Mustafa Al Bakri Abdullah  3 , Andrei Victor Sandu  4   5   6 , Petrica Vizureanu  4   7 , Rafiza Abdul Razak  2 , Dumitru Doru Burduhos-Nergis  4 , Thanongsak Imjai  2   8
Affiliations
Review

Solidification/Stabilization Technology for Radioactive Wastes Using Cement: An Appraisal

Ismail Luhar et al. Materials (Basel). .

Abstract

Across the world, any activity associated with the nuclear fuel cycle such as nuclear facility operation and decommissioning that produces radioactive materials generates ultramodern civilian radioactive waste, which is quite hazardous to human health and the ecosystem. Therefore, the development of effectual and commanding management is the need of the hour to make certain the sustainability of the nuclear industries. During the management process of waste, its immobilization is one of the key activities conducted with a view to producing a durable waste form which can perform with sustainability for longer time frames. The cementation of radioactive waste is a widespread move towards its encapsulation, solidification, and finally disposal. Conventionally, Portland cement (PC) is expansively employed as an encapsulant material for storage, transportation and, more significantly, as a radiation safeguard to vigorous several radioactive waste streams. Cement solidification/stabilization (S/S) is the most widely employed treatment technique for radioactive wastes due to its superb structural strength and shielding effects. On the other hand, the eye-catching pros of cement such as the higher mechanical strength of the resulting solidified waste form, trouble-free operation and cost-effectiveness have attracted researchers to employ it most commonly for the immobilization of radionuclides. In the interest to boost the solidified waste performances, such as their mechanical properties, durability, and reduction in the leaching of radionuclides, vast attempts have been made in the past to enhance the cementation technology. Additionally, special types of cement were developed based on Portland cement to solidify these perilous radioactive wastes. The present paper reviews not only the solidification/stabilization technology of radioactive wastes using cement but also addresses the challenges that stand in the path of the design of durable cementitious waste forms for these problematical functioning wastes. In addition, the manuscript presents a review of modern cement technologies for the S/S of radioactive waste, taking into consideration the engineering attributes and chemistry of pure cement, cement incorporated with SCM, calcium sulpho-aluminate-based cement, magnesium-based cement, along with their applications in the S/S of hazardous radioactive wastes.

Keywords: biochar; calcium aluminate cement; calcium sulphoaluminate cement; cement; magnesia-based cement; radioactive wastes; solidification/stabilization (S/S); supplementary cementitious materials (SCM); waste form.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Radioactive waste management chart.
Figure 2
Figure 2
Nuclear waste inventory.
Figure 3
Figure 3
Total generated LILW in different countries.
Figure 4
Figure 4
Different Categories of radioactive waste.
Figure 5
Figure 5
The limitations of various aqueous liquid treatment solutions.
See this image and copyright information in PMC

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References

    1. Baek J. Do nuclear and renewable energy improve the environment? Empirical evidence from the United States. Ecol. Indic. 2016;66:352–356. doi: 10.1016/j.ecolind.2016.01.059. - DOI
    1. Goh T., Ang B. Quantifying CO2 emission reductions from renewables and nuclear energy—Some paradoxes. Energy Policy. 2018;113:651–662. doi: 10.1016/j.enpol.2017.11.019. - DOI
    1. Li X.-D., Qu Y.-H., Zhang L.-H., Gong Y., Dong Y.-M., Li G.-H. Forecast of China’s future nuclear energy development and nuclear safety management talents development. IOP Conf. Ser. Earth Environ. Sci. 2021;691:012022.
    1. Nathaniel S.P., Alam S., Murshed M., Mahmood H., Ahmad P. The roles of nuclear energy, renewable energy, and economic growth in the abatement of carbon dioxide emissions in the G7 countries. Environ. Sci. Pollut. Res. 2021;28:47957–47972. doi: 10.1007/s11356-021-13728-6. - DOI - PubMed
    1. IEA . Key World Energy Statistics 2020, International Energy Agency Statistics Report. IEA; Paris, France: 2020.

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