Solute transport in partially-saturated deformable porous media

Application to a landfill clay liner

H.J. Zhang, D.-S. Jeng, B.R. Seymour, D.A. Barry, L. Li

    Research output: Contribution to journalArticle

    19 Citations (Scopus)

    Abstract

    Based on the one-dimensional Biot consolidation equations, this paper developed an advection-diffusion equation that incorporates saturation, compressibility of the pore fluid and longitudinal dispersivity of the solute transport in an unsaturated, deforming porous medium. A simplified model was proposed for the case of a landfill liner. Numerical results demonstrated that the longitudinal dispersivity and compressibility of the pore fluid can be significant. Furthermore, the degree of soil saturation and loading rate of the waste surcharge affect significantly the contamination advective emission, namely the cumulative contaminant mass outflow per unit area from compacted clay liner (CCL) due to advective flow.
    Original languageEnglish
    Pages (from-to)1-10
    Number of pages10
    JournalAdvances in Water Resources
    Volume40
    Issue number5
    DOIs
    Publication statusPublished - 1 Jan 2012

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    landfill liner
    clay liner
    dispersivity
    solute transport
    compressibility
    porous medium
    saturation
    advection-diffusion equation
    fluid
    consolidation
    outflow
    pollutant
    soil
    contamination
    rate

    Cite this

    Zhang, H.J. ; Jeng, D.-S. ; Seymour, B.R. ; Barry, D.A. ; Li, L. / Solute transport in partially-saturated deformable porous media : Application to a landfill clay liner. In: Advances in Water Resources. 2012 ; Vol. 40, No. 5. pp. 1-10.
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    abstract = "Based on the one-dimensional Biot consolidation equations, this paper developed an advection-diffusion equation that incorporates saturation, compressibility of the pore fluid and longitudinal dispersivity of the solute transport in an unsaturated, deforming porous medium. A simplified model was proposed for the case of a landfill liner. Numerical results demonstrated that the longitudinal dispersivity and compressibility of the pore fluid can be significant. Furthermore, the degree of soil saturation and loading rate of the waste surcharge affect significantly the contamination advective emission, namely the cumulative contaminant mass outflow per unit area from compacted clay liner (CCL) due to advective flow.",
    author = "H.J. Zhang and D.-S. Jeng and B.R. Seymour and D.A. Barry and L. Li",
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    Solute transport in partially-saturated deformable porous media : Application to a landfill clay liner. / Zhang, H.J.; Jeng, D.-S.; Seymour, B.R.; Barry, D.A.; Li, L.

    In: Advances in Water Resources, Vol. 40, No. 5, 01.01.2012, p. 1-10.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Solute transport in partially-saturated deformable porous media

    T2 - Application to a landfill clay liner

    AU - Zhang, H.J.

    AU - Jeng, D.-S.

    AU - Seymour, B.R.

    AU - Barry, D.A.

    AU - Li, L.

    N1 - Copyright 2012 Elsevier B.V., All rights reserved.

    PY - 2012/1/1

    Y1 - 2012/1/1

    N2 - Based on the one-dimensional Biot consolidation equations, this paper developed an advection-diffusion equation that incorporates saturation, compressibility of the pore fluid and longitudinal dispersivity of the solute transport in an unsaturated, deforming porous medium. A simplified model was proposed for the case of a landfill liner. Numerical results demonstrated that the longitudinal dispersivity and compressibility of the pore fluid can be significant. Furthermore, the degree of soil saturation and loading rate of the waste surcharge affect significantly the contamination advective emission, namely the cumulative contaminant mass outflow per unit area from compacted clay liner (CCL) due to advective flow.

    AB - Based on the one-dimensional Biot consolidation equations, this paper developed an advection-diffusion equation that incorporates saturation, compressibility of the pore fluid and longitudinal dispersivity of the solute transport in an unsaturated, deforming porous medium. A simplified model was proposed for the case of a landfill liner. Numerical results demonstrated that the longitudinal dispersivity and compressibility of the pore fluid can be significant. Furthermore, the degree of soil saturation and loading rate of the waste surcharge affect significantly the contamination advective emission, namely the cumulative contaminant mass outflow per unit area from compacted clay liner (CCL) due to advective flow.

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