Model analysis of the colloid and radionuclide retardation experiment at the Grimsel Test Site

Kurosawa, Susumu; James, Scott C.; Yui, Mikazu; Ibaraki, Motomu

doi:10.1016/j.jcis.2005.12.036

Cited by 23 publications

(11 citation statements)

References 22 publications

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“…The Grimsel Test Site (GTS) is an underground rock laboratory located in the Aare massif of the Swiss Central Alps close to the Grimsel Pass [ Braeuer et al , ]. In this underground laboratory a wide range of research projects such as geological disposal of radioactive waste, in situ stress analysis, and geothermal stimulation experiments are conducted [ Doetsch et al , ; Ziegler et al , ; Kurosawa et al , ; Kant and Rudolf von Rohr , ]. In order to support these experiments with modeling and analysis efforts at elevated temperatures, the thermal properties of the formation have to be known for a large temperature range [ Kant and Rudolf von Rohr , ].…”

Section: Introductionmentioning

confidence: 99%

Thermal properties of Central Aare granite for temperatures up to 500°C: Irreversible changes due to thermal crack formation

Kant

Ammann

Rossi

et al. 2017

Geophysical Research Letters

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Thermal diffusivity, heat capacity, and thermal conductivity of Central Aare granite are reported in the temperature range from 25°C to 500°C. Each rock sample underwent three consecutive heating and cooling cycles. Significant irreversible changes in the properties due to thermal crack formation could be observed. After the first thermal cycle, both thermal diffusivity and conductivity dropped to about 75% of the initial value at room temperature, whereas the heat capacity did not show an irreversible decay. For subsequent thermal cycles, no further permanent changes of the investigated properties could be observed. From the conducted measurements, accurate correlations are derived, offering a platform for precise high‐temperature experiments and other research on Central Aare granite and similar granitic rocks. The report shows that the assumption of constant thermal properties leads to significant inaccuracies at elevated temperatures, especially if thermal cycles are present.

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Section: Introductionmentioning

confidence: 99%

Thermal properties of Central Aare granite for temperatures up to 500°C: Irreversible changes due to thermal crack formation

Kant

Ammann

Rossi

et al. 2017

Geophysical Research Letters

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“…Many models have been proposed in the literature to interpret experimental sorption data obtained with complex mineralogical assemblages, such as sediments and soils (El Aamrani et al, 2002;Kurosawa et al, 2006;Vandenhove et al, 2007). However, these models are often empirical and are not appropriate to cover a wide range of physico-chemical conditions (pH, ionic strength, initial trace element concentration, solid/solution ratio, etc.).…”

Section: -Introductionmentioning

confidence: 99%

Modelling Zn(II) sorption onto clayey sediments using a multi-site ion-exchange model

Tertre

Beaucaire

Coreau

et al. 2009

Applied Geochemistry

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“…Several field‐scale studies presented in the literature have been devoted to the investigation of colloid and pathogen migration [ McKay et al , 1993, 2000; Kurosawa et al , 2006]. Analytical one‐dimensional mathematical models [ Vilker et al , 1978; Sim and Chrysikopoulos , 1995; Chrysikopoulos and Sim , 1996], analytical three‐dimensional models [ Sim and Chrysikopoulos , 1998, 1999; Anders and Chrysikopoulos , 2005] and several numerical models [ Tim and Mostaghimi , 1991; Park et al , 1992; Yates and Ouyang , 1992; Sim and Chrysikopoulos , 1996; Rehmann et al , 1999; Bhattacharjee et al , 2002; Schijven and Simunek , 2002; Faulkner et al , 2003] have been developed for the prediction of virus fate and transport in porous media.…”

Section: Introductionmentioning

confidence: 99%

Fate and transport of pathogens in a fractured aquifer in the Salento area, Italy

Masciopinto

Mantia

Chrysikopoulos

2008

Water Resources Research

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[1] This study investigates the fate and transport of pathogens introduced by artificial groundwater recharge at the Nardò fractured aquifer in the Salento area, Italy. Wastewater effluents from a municipal treatment plant with known pathogen concentrations were injected into a sinkhole and the migration of pathogens in the fractured aquifer was monitored at six sampling wells. The fate of pathogens was quantified by a mathematical model describing colloid transport in a set of three-dimensional, parallel fractures with spatially variable aperture. The number of parallel fractures and their average fracture aperture were determined from appropriate field pumping and tracer tests. The aperture spatial distribution was described by an experimental semivariogram developed from available field data obtained from two tracer tests and 34 pumping tests. The experimental results suggest that for the municipal wastewater injected into the Nardò aquifer the required most conservative set back distance for drinking wells should be over 8000 m.

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Model analysis of the colloid and radionuclide retardation experiment at the Grimsel Test Site

Cited by 23 publications

References 22 publications

Thermal properties of Central Aare granite for temperatures up to 500°C: Irreversible changes due to thermal crack formation

Thermal properties of Central Aare granite for temperatures up to 500°C: Irreversible changes due to thermal crack formation

Modelling Zn(II) sorption onto clayey sediments using a multi-site ion-exchange model

Fate and transport of pathogens in a fractured aquifer in the Salento area, Italy

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