Conceptual design of volume reduction system for ITER low level radioactive waste

Chon, Je Keun; Beaudoin, V.; Pitcher, C.S.

doi:10.1016/j.fusengdes.2016.01.035

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…Volume reduction using an appropriate treatment can decrease the amount of waste to be removed, resulting in a reduction in the disposal cost and enhanced efficiency of the disposal site [31]. Methods that are employed for volume reduction of radioactive waste are incineration, evaporation, crystallization and super-compaction [32][33][34][35]. Incineration technology in Korea has been used for the treatment of combustible radioactive waste and the volume reduction ratio achieved was 65 [32].…”

Section: Introductionmentioning

confidence: 99%

Reduction and Enrichment of Uranium after Biosorption on Inactivated <i>Saccharomyces cerevisiae</i>

Zhang¹,

Dong²,

Liu³

et al. 2020

Pol. J. Environ. Stud.

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Microorganisms not only have a strong biosorption capacity but also can achieve tremendous volume reduction effects for radionuclide wastes. Batch experiments were conducted to investigate the biosorption characteristics of uranium on inactivated Saccharomyces cerevisiae and the volume reduction and enrichment of uranium after biosorption were also studied in combination with the ashing method. The results revealed that inactivated S. cerevisiae biomass was able to adsorb uranium. The maximum removal efficiency and biosorption capacity for uranium were 96.8% and 31.8 mg/g, respectively. The optimum pH for U(VI) removal was 2.75 and U(VI) biosorption was well described by the Freundlich isotherm model. Thermodynamic investigations showed that biosorption of U(VI) on inactivated S. cerevisiae was a spontaneous and endothermic process. In the kinetic studies, U(VI) adsorption on inactivated S. cerevisiae reached an equilibrium in 60 min and followed a pseudo-secondorder kinetics model. The 100 mg/L of uranium was reduced to less than 0.05 mg/L after 6 rounds gradient descent adsorption, which was enough to meet the National uranium wastewater discharge standards. The ashing experiment demonstrated that ashing process resulted in a large volume and weight reduction ratio as well as enrichment for uranium in the ash. XRD results showed that the species of uranium that existed in the ash were uranium phosphate and KPUO 6 •3H 2 O. Waste volume reduction and metal enrichment can be obtained by ashing treatment of the biological absorbent. The method may be beneficial for nuclide and heavy metal disposal treatment in many fields.

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Section: Introductionmentioning

confidence: 99%

Reduction and Enrichment of Uranium after Biosorption on Inactivated <i>Saccharomyces cerevisiae</i>

Zhang¹,

Dong²,

Liu³

et al. 2020

Pol. J. Environ. Stud.

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“…Treatment and Disposal of Radioactive Wastes Chon et al, (2016). conducted a study exploring the optimum design features of available equipments in order to develop the conceptual design of super-compaction system.…”

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confidence: 99%

Radioactive Wastes

Choudri¹,

Charabi²,

Baawain³

et al. 2017

Water Environment Research

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Papers reviewed herein present a general overview of radioactive waste related activities around the world in 2016. The current reveiw include studies related to safety assessments, decommission and decontamination of nuclear facilities, fusion facilities, transportation. Further, the review highlights on management solutions for the final disposal of low and high level radioactive wastes (LLW and HLW), interim storage and final disposal options for spent fuel (SF), and tritiated wastes, with a focus on environmental impacts due to the mobility of radionuclides in ecosystem, water and soil alongwith other progress made in the management of radioactive wastes.

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Oxidative pyrolysis of ion exchange resin in the presence of manganese dioxide: Product analysis, conversion and simplification mechanism

Luo

Zhou

Tong

et al. 2023

Journal of Environmental Chemical Engineering

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Conceptual design of volume reduction system for ITER low level radioactive waste

Cited by 7 publications

References 2 publications

Reduction and Enrichment of Uranium after Biosorption on Inactivated <i>Saccharomyces cerevisiae</i>

Reduction and Enrichment of Uranium after Biosorption on Inactivated <i>Saccharomyces cerevisiae</i>

Radioactive Wastes

Oxidative pyrolysis of ion exchange resin in the presence of manganese dioxide: Product analysis, conversion and simplification mechanism

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