Reactive transport modeling of 90Sr sorption in reactive sandpacks

Yin, Jun; Jeen, Sung‐Wook; Lee, David R.; Mayer, K. Ulrich

doi:10.1016/j.jhazmat.2014.07.073

Cited by 6 publications

(7 citation statements)

References 25 publications

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“…The model was able to describe the results of column experiments including those where the flow was interrupted. Recently, Yin et al [ 34 ] have used a kinetic sorption model, rather than ion exchange, to simulate the removal of 90 Sr from contaminated water by clinoptilolite. The authors found that the apparent sorption rate constant was a function of the pore water velocity, rate constant decreasing as flow rate increased.…”

Section: Modellingmentioning

confidence: 99%

The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams

Dyer

Hriljac

Evans

et al. 2018

J Radioanal Nucl Chem

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Mud Hills clinoptilolite has been used in an effluent treatment plant (SIXEP) at the Sellafield nuclear reprocessing site. This material has been used to remove 134/137Cs and 90Sr successfully from effluents for 3 decades. Samples of the zeolite have been tested in column experiments to determine their ability to remove radioactive Cs+ and Sr2+ ions under increasing concentrations of competing ions, Ca2+, Mg2+, Na+ and K+. These ions caused increased elution of Cs+ and Sr2+. Ca2+, Mg2+ and K+ were more effective competitors than Na+. For Na+, it was found that if concentration was reduced, then column performance recovered rapidly.Electronic supplementary materialThe online version of this article (10.1007/s10967-018-6329-8) contains supplementary material, which is available to authorized users.

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Section: Modellingmentioning

confidence: 99%

The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams

Dyer

Hriljac

Evans

et al. 2018

J Radioanal Nucl Chem

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“…The initial concentrations of Sr and Cs in the feed water were kept constant at 100-1000 g/L. The solution pH (3)(4)(5)(6)(7)(8)(9) was adjusted by adding NaOH or HCl solution. The effect of co-existing ions was studied by spiking 1 mM of cations (Na + , Mg 2+ , Ca 2+ , or NH 4 + ) as chloride salts or 1 mM of anions (Cl − , F − , NO 3 − , and SO 4 2− ) as sodium salts into the feed water.…”

Section: Chemicalsmentioning

confidence: 99%

“…Among the radionuclides found in water, 137 Cs and 90 Sr are the most hazardous and abundant contaminants due to their long half-lives and high radioactivity. The radioactive half-lives of 137 Cs and 90 Sr are 30 years and 28 years, respectively [4,5]. Therefore, finding effective methods to remove Cs and Sr from contaminated water is important for minimizing water pollution caused by radionuclides.…”

Section: Introductionmentioning

confidence: 99%

Effects of feed solution chemistry on low pressure reverse osmosis filtration of cesium and strontium

Ding

Huang

et al. 2015

Journal of Hazardous Materials

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“…For example, the 90 Sr activity in groundwater near the FDNPP reached as high as 5 × 10 9 Bq m −3 . 50 Highly polluted groundwater may be a hotspot source of 90 Sr in the coastal ocean. There are currently more than 200 nuclear power plants situated along coastlines worldwide.…”

Section: Environmental Implicationsmentioning

confidence: 99%

Fresh Groundwater Discharge as a Major Source of ⁹⁰Sr into the Coastal Ocean

Zhang,

Wang,

Huang

et al. 2023

Environ. Sci. Technol.

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The behavior and source of 90 Sr in the coastal ocean remain uncertain. Here, we investigated the distributions of 90 Sr in coastal fresh groundwater, river water, pore water, and seawater in three bays along the southeastern coast of China between 2019 and 2021 and evaluated the potential of submarine groundwater discharge (SGD) as a source of coastal 90 Sr. The 90 Sr activity in coastal fresh groundwater was higher than that in river water and seawater, while the 90 Sr activity in pore water was comparable to that in adjacent seawater. In addition, nonconservative mixing behavior of 90 Sr along the salinity gradient between river water and seawater was observed. These observations indicated that fresh SGD may serve as an additional source of 90 Sr in coastal seawater. Combining our groundwater 90 Sr data with the reported fresh SGD flux data, the estimated fresh SGD-derived 90 Sr fluxes into the three bays were comparable to or even higher than those supplied by riverine sources. These results revealed that fresh SGD is a major but overlooked source of 90 Sr in the coastal ocean. This subterranean pathway for transport of 90 Sr to the coastal ocean should be considered in the monitoring and risk assessment of coastal areas, especially those near nuclear facilities.

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Reactive transport modeling of 90Sr sorption in reactive sandpacks

Cited by 6 publications

References 25 publications

The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams

The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams

Effects of feed solution chemistry on low pressure reverse osmosis filtration of cesium and strontium

Fresh Groundwater Discharge as a Major Source of ⁹⁰Sr into the Coastal Ocean

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Reactive transport modeling of 90Sr sorption in reactive sandpacks

Cited by 6 publications

References 25 publications

The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams

The use of columns of the zeolite clinoptilolite in the remediation of aqueous nuclear waste streams

Effects of feed solution chemistry on low pressure reverse osmosis filtration of cesium and strontium

Fresh Groundwater Discharge as a Major Source of 90Sr into the Coastal Ocean

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Fresh Groundwater Discharge as a Major Source of ⁹⁰Sr into the Coastal Ocean