Transuranium Elements in the Nuclear Fuel Cycle

Thomas, Fanghaenel; Glatz, Jean‐Paul; Rudy, Konings; Vincenzo, Rondinella; Somers, J.

doi:10.1007/978-0-387-98149-9_26

Cited by 2 publications

(3 citation statements)

References 112 publications

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“…Transuranium elements are formed during irradiation of uranium fuel in a reactor and include elements such as neptunium, americium, and curium. These elements are present in the spent fuel in relatively small quantities compared to plutonium, and for that reason they are often also called minor actinides (MA) (Fanghänel et al 2010). 6.…”

Section: Acknowledgementmentioning

confidence: 99%

Safe, clean, proliferation resistant and cost-effective Thorium-based Molten Salt Reactors for sustainable development

Emblemsvåg

2021

International Journal of Sustainable Energy

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Sustainable development requires sustainable energy sources. Nuclear energy is proposed, but it is perceived as problematic in terms of proliferation, waste, safety and costs. In this paper, these issues are analyzed, and it is demonstrated that this perception is not rooted in the reality of modern nuclear technologies. In fact, the paper concludes that Thorium-based Molten Salt Reactors (TMSR) technology is clean, safe, proliferation resistant and cost effective, and even better than traditional nuclear technologies. Given that thorium is a plentiful resource, this technology can propel humanity forward for the next 1000 years or more. What is lacking is an understanding of TMSR by those who allocate funding for research. Hence, this paper is also a call for action.

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Section: Acknowledgementmentioning

confidence: 99%

Safe, clean, proliferation resistant and cost-effective Thorium-based Molten Salt Reactors for sustainable development

Emblemsvåg

2021

International Journal of Sustainable Energy

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“…Neptunium, just like other transuranium elements (TUEs) (Pu, Np, Am, and Cm) is a by-products of fuel irradiation in nuclear reactors (NR). Due to their properties, TUEs have a significant influence on the nuclear fuel cycle (NFC), influencing and frequently defining requirements to procedures related to the management, of spent nuclear fuel (SNF) and highlevel radioactive waste (HLW) [1]. Of all neptunium isotopes forming during irradiation of nuclear fuel, 237 Np is the longest-lived one (half-life is 2.144•10 6 years), therefore it can accumulate in sufficient quantities.…”

Section: Introductionmentioning

confidence: 99%

“…Radicals O • and OH • formed in the radiolysis of water have extremely strong oxidizing properties, including in alkaline media. As shown in [1,22], oxidative (radiolytic) dissolution of NpO2 in aqueous solutions even without complexing agents can occur in the presence of H2O2. Under such conditions, the rate of radiolytic dissolution decreases in the range UO2 > NpO2 > PuO2.…”

Section: Introductionmentioning

confidence: 99%

Oxidative Dissolution of Neptunium(iv) Oxide in Carbonate Solutions

Chervyakov¹,

Boyarintsev²,

Перевалов³

et al. 2021

RAD Conference Proceedings

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This article presents preliminary results of the study of neptunium(IV) oxide dissolution in aqueous solutions of Na2CO3 in the presence of ammonium persulfate and hydrogen peroxide. In these carbonate systems, the value of NpO2 dissolution yield did not exceed 1.5-1.6%. Ultrasonication makes it possible to significantly increase the dissolution rate of neptunium(IV) oxide in Na2CO3 solutions in the presence of hydrogen peroxide. Under such conditions, about 25% of neptunium(IV) oxide powder can be dissolved in one dissolution step (210-270 min). A possible factor affecting the increase of NpO2 dissolution yield is the increase of oxidative and reaction activity in the carbonate systems under ultrasonic impact.

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Transuranium Elements in the Nuclear Fuel Cycle

Cited by 2 publications

References 112 publications

Safe, clean, proliferation resistant and cost-effective Thorium-based Molten Salt Reactors for sustainable development

Safe, clean, proliferation resistant and cost-effective Thorium-based Molten Salt Reactors for sustainable development

Oxidative Dissolution of Neptunium(iv) Oxide in Carbonate Solutions

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