Uranium re-adsorption on uranium mill tailings and environmental implications

Yin, Meiling; Sun, Jing; He, Hongping; Liu, Juan; Zhong, Qiaohui; Zeng, Qingyi; Huang, Xianfeng; Wang, Jin; Wu, Yali; Chen, Diyun

doi:10.1016/j.jhazmat.2021.126153

Cited by 61 publications

(14 citation statements)

References 73 publications

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“…Transfer of radionuclides related to U mining or milling activities into the environment, where they can accumulate (e.g. wetlands, lake sediments, soils), could occur via particulate or dissolved species transport (Bollhoefer et al, 2006;Sinclair et al, 2006;Strok and Smodis 2010;Smodis 2014;Morin et al, 2016;Liu et al, 2017;Stetten et al, 2018;Dang et al, 2018, Liu et al, 2018Yin et al, 2019;Yin et al, 2020;Wang et al, 2019;Mangeret et al, 2020, Paradis et al, 2020Gourgiotis et al 2020;Wang et al, 2021;Yin et al, 2021).…”

Section: Tracking the Presence Of U Mill Tailing In The Environmentmentioning

confidence: 99%

Combined U-Pb isotopic signatures of U mill tailings from France and Gabon: A new potential tracer to assess their fingerprint on the environment

Beaumais

Mangeret

Suhard

et al. 2022

Journal of Hazardous Materials

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Section: Tracking the Presence Of U Mill Tailing In The Environmentmentioning

confidence: 99%

Combined U-Pb isotopic signatures of U mill tailings from France and Gabon: A new potential tracer to assess their fingerprint on the environment

Beaumais

Mangeret

Suhard

et al. 2022

Journal of Hazardous Materials

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“…On account of the improper management of nuclear waste, a large amount of radionuclide uranium enters the environment mainly in the form of UO 2 2+ . It is urgent to achieve selective and accurate detection of UO 2 2+ so as to solve the environmental problem of uranium pollution. − At present, the conventional detection methods for the trace level UO 2 2+ detection primarily include inductively coupled plasma mass spectrometry (ICP–MS) and atomic emission spectroscopy, which often demand a large-scale and expensive instrument, time-consuming processing procedures, and complicated operations, , restricting the on-site rapid detection of UO 2 2+ .…”

Section: Introductionmentioning

confidence: 99%

Guest Molecular Assembly Strategy in Covalent Organic Frameworks for Electrochemiluminescence Sensing of Uranyl

Jiang,

Li,

et al. 2023

Anal. Chem.

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The application of covalent organic frameworks (COFs) in electrochemiluminescence (ECL) is promising in environmental monitoring. Developing an emerging design strategy to expand the class of COF-based ECL luminophores is highly desirable. Here, a COF-based host−guest system was constructed through guest molecular assembly to deal with nuclear contamination analysis. The efficient charge transport network was formed by inserting an electron-withdrawing guest tetracyanoquinodimethane (TCNQ) into the open space of the COF host (TP-TBDA; TP = 2,4,6-trihydroxy-1,3,5-benzenetricarbaldehyde and TBDA = 2,5-di(thiophen-2-yl)benzene-1,4-diamine) with an electron-donating property; the construction of the COF-based host−guest system (TP-TBDA@TCNQ) triggered the ECL emission of non-emitting TP-TBDA. Furthermore, the dense active sites in TP-TBDA were utilized to capture the target substance UO 2 2+ . The presence of UO 2 2+ broke the charge-transfer effect in TP-TBDA@TCNQ, resulting in the weakening of the ECL signal, thus the established ECL system integrating the low detection limit with high selectivity monitors UO 2 2+ . This COF-based host− guest system provides a novel material platform for constructing late-model ECL luminophores and creates an opportunity for the vigorous ECL technology.

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“…The release of radioactive elements is a complex process controlled by many factors. The migration modes and reaction mechanisms of uranium in different media and environmental systems are very different (Aba et al, 2021;Yin et al, 2021a). Hydrodynamic conditions, physicochemical properties of solid medium, chemical composition of liquid phase, pH, and particle size all have varying degrees of influence on the release process (Yan and Luo 2015;Yang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Release behavior of uranium from a uranium tailing in Jiangxi Province

Xue

Wang

Ouyang

et al. 2022

Front. Environ. Sci.

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In this study, nine soils at different depths in a decommissioned uranium tailing pond in Jiangxi Province are selected as the research objects to study their mineralogical properties and reveal the leaching law of radioactive element uranium under natural rainfall conditions. The research results are as follows: 1) The distribution characteristics of uranium are affected by the mineral composition, microscopic morphology and physical and chemical properties of uranium tailings. 2) In static leaching experiments, acidic solutions, small particles, and high solid-to-liquid ratios all promote the release of uranium. 3) In the dynamic leaching experiment, the lower the pH of simulated rainfall, the more uranium is released. According to Fick theory, the migration mechanism of uranium is mainly surface dissolution, and the release of uranium is related to the content of migratory uranium.

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Uranium re-adsorption on uranium mill tailings and environmental implications

Cited by 61 publications

References 73 publications

Combined U-Pb isotopic signatures of U mill tailings from France and Gabon: A new potential tracer to assess their fingerprint on the environment

Combined U-Pb isotopic signatures of U mill tailings from France and Gabon: A new potential tracer to assess their fingerprint on the environment

Guest Molecular Assembly Strategy in Covalent Organic Frameworks for Electrochemiluminescence Sensing of Uranyl

Release behavior of uranium from a uranium tailing in Jiangxi Province

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