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1 sie 2024 · Here, we present the following key aspects: (i) the factors influencing uranium mineralization, including material sources, transport processes, and precipitation mechanism; (ii) both natural and anthropogenic sources that contribute uranium entry into the soil; (iii) uranium toxicity generated by its radio- and chemo-toxicities; (iv) the toxic ...
21 gru 2016 · Radiation can enter and affect the environment at any of the stages of the nuclear fuel cycle, starting with the excavation and processing of uranium ore, over production and recycling of the nuclear fuels, to the processing and disposal of radioactive wastes.
Laboratory testing of uranium ores is an essential step in the economic evalua- tion of uranium occurrences and in the development of a project for the production of uranium concentrates.
23 mar 2022 · Increasing uranium (U) content in soils due to anthropogenic U contamination causes accumulation of U in plants, which greatly increases human health risks. This review identified the diverse...
1 lis 2022 · Radiological and environmental risk assessments of uranium require knowledge of its immediate and long-term behaviour in the soil system. To better understand U(VI) behaviour in contaminated soil, a mesocosm experiment was conducted from 2018 to 2021 by amending soil with U(VI).
5 lip 2021 · Uranium displays a higher mobility in alkaline soils than that in acidic soils, indicating that U is mobilized and released into soil solution with increasing pH (Selvakumar et al., 2018). This effect is attributed to the enhanced oxidation of U(IV) (sparingly soluble) to U(VI) (soluble) under alkaline conditions ( Wang et al., 2018a ).
1 mar 2024 · We illustrate effects of biochar application on uranium immobilisation in soil. We also review the inner mechanisms for uranium immobilisation by biochar including surface complexation, reduction, ion exchange, and physical adsorption.
