Apparent Relative Retardation of Tritium and Bromide in Dolomite

Leap, Darrell I.

doi:10.1111/j.1745-6584.1992.tb01531.x

Cited by 12 publications

(11 citation statements)

References 14 publications

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“…In prior work, results well similar to those found in these studies were obtained by Leap (1992Leap ( , 1993 in fractured and fissured dolomite. The apparent relative retardation coefficients of bromide with respect to tritium were computed by the cumulative relative mass time method from breakthrough curves of both substances, and tritium was retarded slightly more than bromide.…”

Section: Comparison Of Breakthrough Curves With Br −supporting

confidence: 89%

“…In order to determine the suitability of bromide as a substitute for tritium in groundwater tracer in fractured and fissured dolomite, breakthrough curves of both substances were researched by column tests. The results showed that tritium was actually more retarded than bromide in flow-through highly transmissive openings (Leap 1992). An improved agreement between tritium transport results and model curves of chloride transport was obtained by assuming a retardation factor of 1.35 for tritium.…”

Section: Introductionmentioning

confidence: 94%

“…Tritiated water acts very much like normal water in groundwater flow systems, though it is a radioactive isotope as a low-level β emitter (Leap 1992). Tritium, as a conservative tracer, has also been used to define the breakthrough curves in column or field experiments to characterize the hydrogeological parameters of media (Brustad and NjØs 1980;Gaber et al 1995;Maraqa et al 1999;Martin-Garina et al 2002;Hu and Brusseau 1995;Li et al 2009).…”

Section: Introductionmentioning

confidence: 99%

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Experimental Validation of Retardation of Tritium Migration in the Chinese Loess Media

Zuo

Teng

Wang

et al. 2010

Water Air Soil Pollut

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Retardation of tritium migration in the Chinese loess media was studied through column experiments by comparison of the migration velocity with other three "non-adsorptive" tracers of Br − , 99 Tc, and 131 I. Results showed that the transport peak of Br − was 1.25 times earlier than that of tritium when the tracers were simultaneously injected into the column, and the migration of 99 Tc was even 1.60 times faster than 3 H when the tracers were simultaneously injected. For iodine, it was only 1.02 times faster than that of tritium, but it should not be ignored. It reflected that the transport of 3 H, compared to that of Br − , 99 Tc, or 131 I in the loess media, was retarded. In order to validate the adsorption behavior of tritium on loess, batch tests were carried out using Chinese loess soil. The experimental results indicated that the adsorption of tritium was actual existence, and the distribution coefficient of tritium is influenced by initial activity of tritium, pH, water/solid ratio, and the content of humic and fulvic acids.

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Section: Comparison Of Breakthrough Curves With Br −supporting

confidence: 89%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Validation of Retardation of Tritium Migration in the Chinese Loess Media

Zuo

Teng

Wang

et al. 2010

Water Air Soil Pollut

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“…Several investigators, working in limestone, dolomite, allophonic Andisol, have found bromide to be nonreactive tracer (Schmotzer 1973;Jester and Uhler 1974;Tennyson and Seltergren 1980;Payne 1988;Ishiguro et al 1992;Leap 1992). In that case, the non-equilibrium flow phenomena discussed in the recent research could be an alternate to explain our phenomena.…”

Section: Evaluation Of Soil Hydraulic Response By Hydrus-1d Simulationmentioning

confidence: 51%

Micro paddy lysimeter for monitoring solute transport in paddy environment

Thuyet

Hien

Watanabe

et al. 2010

Paddy Water Environ

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The micro paddy lysimeter (MPL) was developed and evaluated for its performance to simulate solute transport in paddy environment under laboratory conditions. MPLs were constructed using soil collected from Field Museum Honmachi of Tokyo University of Agriculture and Technology, Japan. For the physical characteristics of the hardpan layer, parameters such as thickness, and soil aggregate size, affecting the percolation rate were studied. For the plow layer, two types of plow soils, sieved and un-sieved soils were compared. The sieved soil plow layer was produced by mixing air-dried soils of different aggregate sizes of D [ 9. 50, 9.50 C D [ 4.75, 4.75 C D [ 2.0 mm and D B 2.0 mm at 47.1, 19.5, 20.6, and 12.8%, respectively. The un-sieved plow layer soil was directly used after collecting from the field. Inert tracer was applied to ponding water with controlled boundary conditions to evaluate the reproducibility of the soil hydraulic characteristics. HYDRUS-1D was used to evaluate the movement of bromide tracer in the MPL. The proposed conditions of the MPL were that the hardpan layer can be made from soil aggregates smaller than 0.425 mm with 2 cm thickness and that the plow layer can be prepared with sieved or un-sieved soils. With these conditions, the obtained results proved that MPLs can be a useful tool to simulate solute transport in paddy environment.

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“…Tritiated water acts very much like normal water in groundwater flow systems, though it is a radioactive isotope as a low level b emitter (Leap, 1992).…”

Section: Introductionmentioning

confidence: 99%