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Interaction between sorption and biodegradation processes in the contaminant transport

Author

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  • Couto, Paula R.L.
  • Malta, Sandra M.C.

Abstract

The main goal of this work is to examine in detail the equilibrium and non-equilibrium sorption in a multiple species contaminant transport system undergoing multiplicative Monod biodegradation kinetics, which characterizes a scenario of subsurface contamination by organic contaminants. Mathematically, the problem is given by a nonlinear advection-diffusion-reaction partial differential system coupled by the reaction terms, associated with the biodegradation process. A new operator splitting approach is proposed for treating in a sequential fashion the convective-diffusive and reactive terms. A predictor-multicorrector algorithm with Newton–Raphson and stabilized finite element (streamline-upwind Petrov-Galerkin, SUPG) methods is used in the time and spatial discretizations, respectively. Numerical results illustrate the good applicability of the present approach, corroborating the well-known observation nonlinear physical and biological processes should be inserted in the model that to better predict the contamination scenarios.

Suggested Citation

  • Couto, Paula R.L. & Malta, Sandra M.C., 2008. "Interaction between sorption and biodegradation processes in the contaminant transport," Ecological Modelling, Elsevier, vol. 214(1), pages 65-73.
    • Handle: RePEc:eee:ecomod:v:214:y:2008:i:1:p:65-73
    DOI: 10.1016/j.ecolmodel.2008.01.012
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    Cited by:

    1. Romeiro, Neyva M.L. & Castro, Rigoberto G.S. & Cirilo, Eliandro R. & Natti, Paulo L., 2011. "Local calibration of coliforms parameters of water quality problem at Igapó I Lake, Londrina, Paraná, Brazil," Ecological Modelling, Elsevier, vol. 222(11), pages 1888-1896.

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