Reactive transport of 85Sr in a chernobyl sand column: static and dynamic experiments and modeling

Szenknect, Stéphanie; Ardois, Christophe; Gaudet, Jean‐Paul; Barthés, V.

doi:10.1016/j.jconhyd.2004.08.003

Cited by 39 publications

(15 citation statements)

References 34 publications

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“…Two-dm 3 Mariotte reservoirs with lower stopcocks were placed over the columns to ensure sufficient hydrostatic head pressure. The liquid phase was introduced on the top of the columns.…”

Section: Methodsmentioning

confidence: 99%

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Sorption, desorption and extraction of uranium from some sands under dynamic conditions

Palágyi

Laciok

2006

Czech J Phys

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Sorption, desorption and extraction behavior of uranium in various fluvial sands of domestic origin were investigated in continuous dynamic column experiments. For the sorption of U(VI) an aqueous 10 -4 M UO 2 (NO 3 ) 2 solution was used at a flow rate of about 0,3 cm 3 /min. Desorption was carried out with demineralized water, and the extraction with 10 -2 M Na 2 CO 3 solution following desorption. The retardation coefficients (R) and hydrodynamic dispersion coefficients (D d ), were determined using an ADE equation. From the experimentally determined values of R, bulk density and porosity, the distribution coefficients (K d ) of the UO 2 2+ species have been calculated for the respective processes. The extent of U sorption in sands, as well as the proportion of desorbed and extracted U from these sands, was also calculated.

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“…Two-dm 3 Mariotte reservoirs with lower stopcocks were placed over the columns to ensure sufficient hydrostatic head pressure. The liquid phase was introduced on the top of the columns.…”

Section: Methodsmentioning

confidence: 99%

“…Both methods have advantages and disadvantages. It is generally accepted that dynamic methods, which are performed in columns or flow-through reactors, are closer to natural conditions than the batch method and have distinctive advantages over the latter [2,3].…”

Section: Introductionmentioning

confidence: 99%

Sorption, desorption and extraction of uranium from some sands under dynamic conditions

Palágyi

Laciok

2006

Czech J Phys

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“…Distribution coefficients and the isotherm for 90 Sr have been determined in batch experiments, flow through reactors and column experiments using Chernobyl eolian sand (Szenknect, 2003;Szenknect et al, 2005). Distribution coefficients and the isotherm for 90 Sr have been determined in batch experiments, flow through reactors and column experiments using Chernobyl eolian sand (Szenknect, 2003;Szenknect et al, 2005).…”

Section: Flow and Transport In The Unsaturated Zonementioning

confidence: 99%

Radioactive Particles in the Environment

Oughton¹,

Kashparov²

2009

NATO Science for Peace and Security Series C: Environmental Security

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This Series presents the results of scientific meetings supported under the NATO Advanced Research Workshops (ARW) are expert meetings where an intense but informal exchange of views at the frontiers of a subject aims at identifying directions for future action re-organised. Recent volumes on topics not related to security, which result from meetings supported under the programme earlier, may be found in the NATO Science Series. Sub-Series D.Information and Communication Security IOS Press IOS Press

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“…The results showed that based on the K d values determined through the batch tests, the models failed to accurately describe Sr transport in both unsaturated and saturated basalt. Szenknect et al (2005) studied the chemical and hydrodynamic processes involved in strontium transport through batch, flow-through reactor and column experiments. They pointed out that it seemed unrealistic to use a single K d value to predict the Sr transport in an eolian sand, especially with varying Ca 2þ and pH in the system.…”

Section: Introductionmentioning

confidence: 99%

“…They are generally preferred for strongly sorbing contaminants due to the extremely long time requirements of column tests (Porro et al, 2000). However, batch tests suffer from the disadvantage that the conditions may differ far from those observed in the field (Hutchison et al, 2003;Szenknect et al, 2005). Column tests are conducted under conditions approximating those observed in the field, including bulk density, porosities, groundwater velocity and moisture content.…”

Section: Introductionmentioning

confidence: 99%

Sorption and retardation of strontium in saturated Chinese loess: experimental results and model analysis

Huo

Qian

Hao

2013

Journal of Environmental Radioactivity

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Reactive transport of 85Sr in a chernobyl sand column: static and dynamic experiments and modeling

Cited by 39 publications

References 34 publications

Sorption, desorption and extraction of uranium from some sands under dynamic conditions

Sorption, desorption and extraction of uranium from some sands under dynamic conditions

Radioactive Particles in the Environment

Sorption and retardation of strontium in saturated Chinese loess: experimental results and model analysis

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