Nanocrystalline Ce(OH)4-based materials: ruthenium selective adsorbent for highly alkaline radioactive liquid waste
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Jayaprakasam Selvakumar
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Kumari Anshul
Abstract
Cerium hydroxide, Ce(OH)4 (Ce), has been synthesised and assessed as a Ru-selective adsorbent for treating alkaline radioactive liquid waste. Infrared spectroscopy, thermal analysis, scanning electron microscopy, and energy-dispersive X-ray spectroscopy investigations confirmed the successful formation of nanocrystalline Ce from Ce(NO3)3·6H2O. Selective removal of 106Ru from the ion-exchange effluent of intermediate-level liquid waste (ILW) by Ce was assessed using a high-pure germanium (HPGe) gamma-ray spectrometer. The calculated average distribution coefficient (kD) was ∼200 mL/g. The percentage removal of 106Ru using Ce by varying time, [106Ru] and [Ce] was calculated. The adsorption of 106Ru on Ce follows pseudo-second-order and Freundlich isotherms. The calculated Qmax was 93,584 Bq/g. Accelerated leaching studies of the Ru-laden Ce cement product were carried out and found suitable for transport and disposal. Further, Ce-Polyether sulphone (Ce-PES) and Ce-Chitosan (CeC) composites were prepared and assessed for their Ru-uptake capacity for engineering scale application.
Acknowledgments
The authors are grateful to G. Suneel Superintendent (O), WIP-K, NRB, for his encouragement during the experiments.
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Research ethics: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: Not applicable.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Preface
- NUCAR-2023: Foreword
- Research Articles
- Theoretical analysis of light and heavy-ion induced reactions: production of medically relevant 97Ru
- Excitation functions of alpha-particle induced nuclear reactions on nat Sn
- Non-destructive assay of plutonium in absence of gamma-ray spectrometry
- Catalytic destruction of oxalate in the supernatant stream generated during plutonium reconversion process
- Quantification of Zr in simulated dissolver solution of U–Zr fuel by laser-induced breakdown spectroscopy
- Radiochemical and chemical characterization of fuel, salt, and deposit from the electrorefining of irradiated U-6 wt% Zr in hot cells
- Zirconium sponge production: an integrated approach for chemical characterization of process intermediates using ICP-OES
- Determination of 10B/11B in boric acid and B4C using LA-ICPMS
- Evaluating sustainability of Bhuj aquifer system, Western India using nuclear dating techniques
- Nanocrystalline Ce(OH)4-based materials: ruthenium selective adsorbent for highly alkaline radioactive liquid waste
- Production and radiochemical separation of 68Ge from irradiated Ga–Ni alloy target in 30 MeV cyclotron
- Preparation of [64Cu]Cu–NOTA complex as a potential renal PET imaging agent using 64Cu produced via the direct activation route
- Total chemical synthesis of PSMA-617: an API for prostate cancer endotherapeutic applications
- Rapid screening technique for gross α and gross β estimations in aqueous samples during radiation emergency
- Development of Dy3+ doped lithium magnesium borate glass system for thermoluminescence based neutron dosimetry applications
Articles in the same Issue
- Frontmatter
- Preface
- NUCAR-2023: Foreword
- Research Articles
- Theoretical analysis of light and heavy-ion induced reactions: production of medically relevant 97Ru
- Excitation functions of alpha-particle induced nuclear reactions on nat Sn
- Non-destructive assay of plutonium in absence of gamma-ray spectrometry
- Catalytic destruction of oxalate in the supernatant stream generated during plutonium reconversion process
- Quantification of Zr in simulated dissolver solution of U–Zr fuel by laser-induced breakdown spectroscopy
- Radiochemical and chemical characterization of fuel, salt, and deposit from the electrorefining of irradiated U-6 wt% Zr in hot cells
- Zirconium sponge production: an integrated approach for chemical characterization of process intermediates using ICP-OES
- Determination of 10B/11B in boric acid and B4C using LA-ICPMS
- Evaluating sustainability of Bhuj aquifer system, Western India using nuclear dating techniques
- Nanocrystalline Ce(OH)4-based materials: ruthenium selective adsorbent for highly alkaline radioactive liquid waste
- Production and radiochemical separation of 68Ge from irradiated Ga–Ni alloy target in 30 MeV cyclotron
- Preparation of [64Cu]Cu–NOTA complex as a potential renal PET imaging agent using 64Cu produced via the direct activation route
- Total chemical synthesis of PSMA-617: an API for prostate cancer endotherapeutic applications
- Rapid screening technique for gross α and gross β estimations in aqueous samples during radiation emergency
- Development of Dy3+ doped lithium magnesium borate glass system for thermoluminescence based neutron dosimetry applications
