Dynamics of water vapor flux and water separation processes during evaporation from a salty dry soil

Gran, Meritxell; Carrera, Jesús; Massana, J.; Saaltink, Maarten W.; Olivella, S.; Ayora, Carlos; Lloret, A.

doi:10.1016/j.jhydrol.2010.11.011

Cited by 61 publications

(73 citation statements)

References 15 publications

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“…Gran et al (2011) show an experimental work which permits to analyse the dynamics of water vapour flux and water separation processes during evaporation from a salty soil. The soil contains salinized water that under evaporation may induce precipitation of salt crystals.…”

Section: Introductionmentioning

confidence: 99%

Porosity Variations in Saline Media Induced by Temperature Gradients: Experimental Evidences and Modelling

et al. 2011

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Section: Introductionmentioning

confidence: 99%

Porosity Variations in Saline Media Induced by Temperature Gradients: Experimental Evidences and Modelling

et al. 2011

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“…More detailed measurements would have been required to clearly show the subflorescence. Moreover, most of the studies that investigate salt precipitation in soils have been performed with initially saturated soil columns where efflorescent precipitation or formation of a salt crust was observed at the surface of the column when the water table was lowered (Gran et al, ; Nachshon et al, ).…”

Section: Discussionmentioning

confidence: 99%

Modelling evaporation processes in soils from the Huasco salt flat basin, Chile

Hernández-López

Braud²,

Gironás

et al. 2016

Hydrological Processes

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“…The column experiment is described in detail in Gran et al (2011a). A 24 cm and 14.4 cm in diameter silica sand column (0.4-0.8 mm grain size and 2.65 g/cm 3 density), initially saturated with a MgSO 4 solution, was subject to a constant source of heat on the upper part.…”

Section: Conceptual Modelmentioning

confidence: 99%

“…Therefore, at invariant points, mineral phases are controlling the evaporation rate by fixing vapor pressure. Gran et al (2011a) conducted an experiment in which the occurrence of invariant points is expected. In this experiment a sand column, initially saturated with a MgSO4 solution, was subject to a constant source of heat at the top.…”

Section: Introductionmentioning

confidence: 99%

Modeling the influence of MgSO4 invariant points on multiphase reactive transport process during saline soil evaporation

Gamazo

Saaltink

Carrera

et al. 2013

Physics and Chemistry of the Earth, Parts A/B/C

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Please cite this article as: Gamazo, P., Saaltink, M.W., Carrera, J., Slooten, L., Bea, S.A., Gran, M., Modeling the influence of MgSO 4 invariant points on multiphase reactive transport process during saline soil evaporation, Physics and Chemistry of the Earth (2013), doi: http://dx.doi.org/10.1016/j.pce. 2013.02.001 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Modeling the influence of MgSO Abstract:In the present work, we modeled a laboratory experiment where a sand column saturated with a MgSO 4 solution is subject to evaporation. We used a compositional formulation capable of representing the effect of geochemistry on flow and transport for concentrated solutions under extreme dry conditions. The model accounts for the water sink/sources terms due to hydrated mineral dissolution/precipitation and the occurrence of invariant points, which prescribe the water activity. Results show that the occurrence of the invariant points at the top of the domain could affect the vapor flux at the column top and salt precipitation along the column. In fact, the invariant points occurrence could explain the spatial fluctuation on the salt precipitates formation. Results also suggest that the complex hydrochemical interactions occurring during soil salinization, including osmotic effects, are crucial not only to understand the salt precipitation, but also the evaporation rate. Keywords:• soil evaporation• coupling effects• multiphase reactive transport Highlights:• Modeling evaporation of sand column with MgSO 4 solution.• Model involves oven dry conditions, high salinity, hydrated mineral precipitation.• Coupling effects: geochemical reactions on water content and therefore on flow.• Modeling invariant points: mineral paragenesis prescribes water activity.

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Dynamics of water vapor flux and water separation processes during evaporation from a salty dry soil

Cited by 61 publications

References 15 publications

Porosity Variations in Saline Media Induced by Temperature Gradients: Experimental Evidences and Modelling

Porosity Variations in Saline Media Induced by Temperature Gradients: Experimental Evidences and Modelling

Modelling evaporation processes in soils from the Huasco salt flat basin, Chile

Modeling the influence of MgSO4 invariant points on multiphase reactive transport process during saline soil evaporation

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