Analysis of Spent SuperLig<sup>®</sup> 644 Resin used for Cesium Removal from Hanford Tank Wastes

Fiskum, Sandra K.; Blanchard, David L.; Steele, Marilyn J.; Wagner, Jerome J.

doi:10.1080/07366290500388426

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…The use of various SPE-systems with the selectivity to various radioactive elements, such as, Sr, Tc, Cs and Ra has also been reported [157][158][159][160][161][162][163][164] and evaluated for large-scale applications [164][165][166][167].…”

Section: Selective Separation Of Radioactive Elementsmentioning

confidence: 99%

Selective separation of elements from complex solution matrix with molecular recognition plus macrocycles attached to a solid-phase: A review

Rahman

Begum

Hasegawa

2013

Microchemical Journal

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Microchemical Journal, 110: 485-493, 2013 The original publication is available at: http://dx.doi. org/10.1016/j.microc.2013.06.006 Abstract Solid-phase extraction (SPE) approach was introduced approximately five decades ago, and until then development of SPE materials is seamlessly continued. Lately, the SPE-based research is increasingly focused in developing more explicit materials to achieve meticulous separation of elements from complex solution matrices with high concentrations of interfering ions. One group of SPE materials includes those with macrocyclic ligands immobilized on a solid-phase, which are capable of selective separation and preconcentration of elements, and such selectivity in metal retention is generally termed as molecular recognition. In the process, the designed 'host' material possesses a high degree of recognition to specific elements or groups of elements called 'guest', and the recognition capability remains effective at the very low concentrations of the 'guest' species or when those present in complex matrices. The routes to the development of element-selective SPEs, the operating principles, applications and limitations are discussed in this review. KeywordsSeparation; element-selectivity; Macrocycles; Solid-phase extraction; Molecular recognition 2 Microchemical Journal, 110: 485-493, 2013 The original publication is available at: http://dx.doi.org/10.1016/j.microc.2013.06.006 IntroductionAlthough metals and metalloids are ubiquitous in nature, the environmental concentrations of both toxic and essential elements have been largely increased mostly pursuant to anthropogenic activities related to the industrial development and improved living standards in modern societies. The growing extent of metal pollution also initiated a number of legislative measures, such as, RoHS or ELV directive has been imposed to specify the limit of trace elements in the industrial products, while the EU directive defined the acceptable concentrations of different elements in cultivable soils.Sensitive analytical techniques such as, flame atomic absorption spectrometry, electrothermal atomic absorption spectrometry, inductively coupled plasma mass spectrometry, inductively coupled plasma optical emission spectrometry, and so forth are available for precise analysis of trace elements in solution. An overall analytical process comprises a number of succeeding steps, including sampling, sample preparation, separation and quantification. Among the aforementioned steps, sample preparation is by far the most important error source in modern analytical method development due to the low species concentration or heterogeneous distribution of the analytes in the matrix as well as the complex nature of the sample matrices. Therefore, a clean-up/separation step is often recommended before the analytical determination of trace elements in effluent or industrial waste waters to avoid the interfering effect from the matrix ions or to facilitate preconcentration due to their low concentrations in samples. The t...

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Section: Selective Separation Of Radioactive Elementsmentioning

confidence: 99%

Selective separation of elements from complex solution matrix with molecular recognition plus macrocycles attached to a solid-phase: A review

Rahman

Begum

Hasegawa

2013

Microchemical Journal

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“…1. Introduction 14 C is generated by the reaction of neutrons with existing nitrogen 14 N(n, p) 14 C, oxygen 17 O(n, α) 14 C, and carbon 13 C(n, γ) 14 C, [1][2][3][4][5][6] in reactors that use heavy water as a coolant. 14 C is more generated in heavy water reactor than pressurised water reactor because the concentration of 17 O and thermal neutron flux is higher.…”

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Radiological impact assessment for workers on treatment of radioactive spent resin from heavy water reactors

Lee

Choi²,

Kim³

2019

J. Radiol. Prot.

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In heavy water reactors, radionuclides are generated, then removed and treated by ion exchange resin. The disposal cost of spent resin is expected to increase because of the saturation of the existing storage capacity. In this study, a spent resin treatment process using microwaves is proposed, and a radiological safety assessment and cost evaluation of the spent resin treatment process are performed. A dose assessment was conducted by using the established exposure scenarios and the RESRAD-Build software. A sensitivity analysis was conducted to identify the main contributory radionuclide of the dose according to each exposure pathway because a spent resin consists of various radionuclides. The main exposure pathway was identified, and sensitivity analysis was applied to the working time and radioactivity concentrations of 14C, 60Co and 137Cs to confirm their effect on the dose. Finally, an optimal shielding system for a safe work environment was proposed. The disposal cost of the spent resin is reduced by lowering its radioactivity level via a treatment process using microwaves. The treatment process can reduce the radioactivity level through the desorption of 14C and can also recycle the 14C nuclide. These characteristics have great economic advantages from the viewpoint of the entire nuclear energy cycle. Thus, this study evaluates the radiological safety of the spent resin treatment process for actual application in a heavy water reactor power plant.

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Application of Molecular Recognition Technology to Green Chemistry

Furusho¹,

Rahman

Hasegawa

et al. 2016

Metal Sustainability

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Analysis of Spent SuperLig^® 644 Resin used for Cesium Removal from Hanford Tank Wastes

Cited by 9 publications

References 3 publications

Selective separation of elements from complex solution matrix with molecular recognition plus macrocycles attached to a solid-phase: A review

Selective separation of elements from complex solution matrix with molecular recognition plus macrocycles attached to a solid-phase: A review

Radiological impact assessment for workers on treatment of radioactive spent resin from heavy water reactors

Application of Molecular Recognition Technology to Green Chemistry

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Analysis of Spent SuperLig® 644 Resin used for Cesium Removal from Hanford Tank Wastes

Cited by 9 publications

References 3 publications

Selective separation of elements from complex solution matrix with molecular recognition plus macrocycles attached to a solid-phase: A review

Selective separation of elements from complex solution matrix with molecular recognition plus macrocycles attached to a solid-phase: A review

Radiological impact assessment for workers on treatment of radioactive spent resin from heavy water reactors

Application of Molecular Recognition Technology to Green Chemistry

Contact Info

Product

Resources

About

Analysis of Spent SuperLig^® 644 Resin used for Cesium Removal from Hanford Tank Wastes