Sorption and desorption studies of Cs and Sr in contaminated soil samples around Fukushima Daiichi Nuclear Power Plant

Kasar, Sharayu; Mishra, Saurabh; Omori, Yasutaka; Sahoo, Sarata Kumar; Kávási, Norbert; Arae, Hideki; Aono, Tatsuo

doi:10.1007/s11368-019-02376-6

Cited by 24 publications

(7 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The values for Sr and Cs adsorption with the mineral phases and the composite clayey soil samples correspond well with % adsorbed and distribution coefficients (K D values) determined in recent research on Sr and Cs complexation with clay minerals, metal oxides and clayey soils. 1,15,16,18,19,23,27,29,30,39,[57][58][59][60][61][62][63] The similarities with previous results on Sr complexation with clay minerals, metal oxides and clayey soils indicate that any stable Sr present in the mineralogical samples did not significantly affect Sr surface complexation at 20 Bq/ml Sr-85 to the single mineral phases or the composite clayey soil. Adsorption of Cs and Sr to anatase.…”

Section: Sr and Cs Adsorption To A Composite Clayey Soil And Its Mineral Componentssupporting

confidence: 85%

Emerging investigator series: a holistic approach to multicomponent EXAFS: Sr and Cs complexation in clayey soils

Bots

Comarmond

Payne

et al. 2021

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

Section: Sr and Cs Adsorption To A Composite Clayey Soil And Its Mineral Componentssupporting

confidence: 85%

Emerging investigator series: a holistic approach to multicomponent EXAFS: Sr and Cs complexation in clayey soils

Bots

Comarmond

Payne

et al. 2021

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

“…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: 55%

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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…As shown by numerous studies, the main sorption mechanism of Cs(I) and Sr(II) on montmorillonite is ion exchange [20,24,33,55], which occurs regardless of pH.…”

Section: Adsorption Mechanisms Of Cs(i) and Sr(ii)mentioning

confidence: 99%

Adsorption of Cs(I) and Sr(II) on Bentonites with Different Compositions at Different pH

et al. 2022

View full text Add to dashboard Cite

This paper deals with adsorption regularities and mechanisms of nonradioactive Cs(I) and Sr(II) analogs on bentonites of different chemical and mineral composition from solutions of Cs and Sr nitrates with pH 3, 7, and 10 units at constant ionic strength. The bentonites were taken from the deposits Taganskoe (T), Dash-Salakhlinskoe (DS), Zyryanskoe (Z), and 10th Khutor (10H). The pH of bentonite aqueous suspensions, T and DS, exceeded 9 units. A less alkaline reaction was observed in bentonite suspensions Z and T with pH 8.94 and 7.70, respectively. Bentonites T and DS contained significant amounts of nonsilicate iron compounds, 1.0 and 0.5%, respectively. The recovery rate of the studied clays from aqueous solutions of Cs(I) and Sr(II) ions in concentrations from 0.25 to 5 mmol/L varied from 50% to 90% and decreased in the following order: “Ta-ganskoe” > “Dash-Salakhlinskoe” > “Zyryanskoe” > “10th Khutor” in the studied pH range. The main mechanism of Cs(I) and Sr(II) sorption in the studied pH range was cation fixation in the form of outer-sphere complexes on planar surfaces resulting from ion exchange. Increasing pH (pH > 6) enhanced pH-dependent positions, which allowed Cs(I) and especially Sr(II) ions to fix on them more firmly as inner-sphere complexes. At pH 9–10, Sr(II) could precipitate in the form of carbonates. The sorption of Cs(I) + and Sr(II) was accompanied by competitive interactions with proton at pH < 6 and Na+, Ca2+, Mg2+, and K+ cations at higher pH values. This competition was more apparent at concentrations of Cs(I)and Sr(II) in initial solutions < 0.5 mmol/L. The ability of bentonite T to sorb Cs(I) and Sr(II) in large amounts compared to the other bentonites was determined by high CEC values and charge of smectite T.

show abstract

Sorption and desorption studies of Cs and Sr in contaminated soil samples around Fukushima Daiichi Nuclear Power Plant

Cited by 24 publications

References 35 publications

Emerging investigator series: a holistic approach to multicomponent EXAFS: Sr and Cs complexation in clayey soils

Emerging investigator series: a holistic approach to multicomponent EXAFS: Sr and Cs complexation in clayey soils

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

Adsorption of Cs(I) and Sr(II) on Bentonites with Different Compositions at Different pH

Contact Info

Product

Resources

About