Sorption-desorption characteristics of uranium, cesium and strontium in typical podzol soils from Ukraine

Mishra, Saurabh; Arae, Hideki; Zamostyan, Pavlo V.; Ishikawa, Tetsuo; Yonehara, Hidenori; Sahoo, Sarat Kumar

doi:10.1093/rpd/ncs230

Cited by 19 publications

(5 citation statements)

References 7 publications

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“…The selection of a reference material is dependent on abundance of the elements of interest in that material and the soils to be examined. It has been observed that Fukushima soils are richer in Al 2 O 3 and Fe 2 O 3 oxides than Chernobyl soils [16,17]. The certified values of JSd-2 (Japanese sediment) show high content of both these oxides which is similar to the trend of Fukushima soils [18].…”

Section: Comparison Between Digestion Methods For Jsd-2mentioning

confidence: 53%

A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry

et al. 2020

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Two different digestion methods—microwave digestion (Mw) and Savillex digestion (Sx)—were used to evaluate the best quality control for analysis of the rare earth elements, Th and U in the geochemical certified reference material JSd-2, supplied by the Geological Survey of Japan (GSJ). The analysis of trace elements was carried out using inductively coupled plasma mass spectrometry (ICP-MS). The digestion recovery was > 90% for almost all elements by both methods. Mw-4 (four repeats of the microwave digestion) was found to be more effective and faster than Sx. In order to evaluate the efficiency of Mw-4, three other GSJ certified reference materials, JLk-1, JB-1 and JB-3, as well as five different soil samples from Belarus, Japan, Serbia and Ukraine were also analyzed. The Mw-4 method was seen to be promising for complete digestion and recovery of most of the elements. The U/Th ratio showed some heterogeneity for Ukraine and Serbia soils affected by Chernobyl nuclear power plant accident and depleted uranium contamination, respectively. This method can be successfully applied to any type of soils for elemental analyses.

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Section: Comparison Between Digestion Methods For Jsd-2mentioning

confidence: 53%

A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry

et al. 2020

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“…The 90 Sr content of the Dreissena shells is unknown, but the very low 90 Sr concentrations in mosses growing directly on the shells suggest that mosses lack acidic exudates as in higher plants, thus no mobilization of ions from the shells occurs, though exudates in general are produced [ 30 ]. In podzol, on the other hand, 90 Sr may also be reversibly bound to Fe and Mn oxides [ 31 , 32 ] and therefore be accessible to moss rhizoids.…”

Section: Resultsmentioning

confidence: 99%

Uptake of Radionuclides by Bryophytes in the Chornobyl Exclusion Zone

Schmidt

Kegler

Steinhäuser

et al. 2023

Toxics

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The “Chernobyl nuclear disaster” released huge amounts of radionuclides, which are still detectable in plants and sediments today. Bryophytes (mosses) are primitive land plants lacking roots and protective cuticles and therefore readily accumulate multiple contaminants, including metals and radionuclides. This study quantifies 137Cs and 241Am in moss samples from the cooling pond of the power plant, the surrounding woodland and the city of Prypiat. Activity concentrations of up to 297 Bq/g (137Cs) and 0.43 Bq/g (241Am) were found. 137Cs contents were significantly higher at the cooling pond, where 241Am was not detectable. Distance to the damaged reactor, amount of original fallout, presence of vascular tissue in the stem or taxonomy were of little importance. Mosses seem to absorb radionuclides rather indiscriminately, if available. More than 30 years after the disaster, 137Cs was washed out from the very top layer of the soil, where it is no more accessible for rootless mosses but possibly for higher plants. On the other hand, 137Cs still remains solved and accessible in the cooling pond. However, 241Am remained adsorbed to the topsoil, thus accessible to terrestrial mosses, but precipitated in the sapropel of the cooling pond.

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“…Both repulsive and attractive forces become balanced when sorption occurs. Much definitive work relating to sorption of radionuclides have been published [21][22][23][24]. Mechanisms of sorption in many cases have been established and some relationships between structural properties of sorbate and sorbent have been investigated [25][26][27].…”

Section: Sorption Theoretical Conceptsmentioning

confidence: 99%

Understanding Sorption Behavior and Properties of Radionuclides in the Environment

Saint‐Fort¹

2018

Principles and Applications in Nuclear Engineering - Radiation Effects, Thermal Hydraulics, Radionuclide Migration in the Envir

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Prediction of fate and behavior of radionuclides in the environment is largely governed by sorption processes. Radionuclides physico-chemical species interacting with prevailing abiotic properties of the environment vary widely among varying constituting environmental components. Herein, this work discussed the most significant aspects of sorption processes and properties at the solid-water interface. Main sorption mechanisms were investigated using kinetic, thermodynamic analyses, and various mathematical models in current use for description of sorption-desorption processes in the environment. Knowledge of environmental transport, environmental pathways, and exposure pathways to radionuclides is also an important aspect of any strategy to protect the public and the natural ecosystems. In the final analysis, the choice of a functional sorption equation model will be dictated by the risk-based under consideration, the level of information available, and the intrinsic accuracy of the predictive model.

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Sorption-desorption characteristics of uranium, cesium and strontium in typical podzol soils from Ukraine

Cited by 19 publications

References 7 publications

A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry

A Microwave Digestion Technique for the Analysis of Rare Earth Elements, Thorium and Uranium in Geochemical Certified Reference Materials and Soils by Inductively Coupled Plasma Mass Spectrometry

Uptake of Radionuclides by Bryophytes in the Chornobyl Exclusion Zone

Understanding Sorption Behavior and Properties of Radionuclides in the Environment

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