The Mathematical Modeling of Ca And Fe Distribution In Peat Layers

Authors

  • Ērika Teirumnieka Rezeknes Augstskola
  • Ilmārs Kangro Rezeknes Augstskola
  • Edmunds Teirumnieks Rezeknes Augstskola
  • Harijs Kalis Latvian Academy of Sciences and University of Latvia
  • Aigars Gedroics University of Latvia

DOI:

https://doi.org/10.17770/etr2011vol2.1004

Keywords:

finite difference method, heavy metals, peat bog

Abstract

Bogs have been formed by an accumulation of peat - a light brown-to-black organic material, built up from partial decomposition of mosses and other bryophytes, sedges, grasses, shrubs, or trees under waterlogged conditions. The total peatlands area in Latvia covers 698 918 ha or 10.7% of the entire territory. Knowledge’s of peat metals content are important for any kind of peat using. Experimental determination of metals in peat is very long and expensive work. Using experimental data mathematical model for calculation of concentrations of metals in different points for different layers can help to very easy and fast to find approximately concentration of metals or trace elements. The results of the research show that concentrations of trace elements in peat are generally low. Concentrations differ between the superficial, middle and bottom peat layers, but the significance decreases depending on the type of mire. The mathematical model for calculation of concentration of metals in different points for different 3 layers in peat blocks is developed. As an example, mathematical models for calculation of Ca and Fe concentrations have been analyzed.

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Author Biographies

  • Ērika Teirumnieka, Rezeknes Augstskola
    Faculty of Engineering
  • Ilmārs Kangro, Rezeknes Augstskola
    Faculty of Engineering
  • Edmunds Teirumnieks, Rezeknes Augstskola
    Faculty of Engineering
  • Harijs Kalis, Latvian Academy of Sciences and University of Latvia
    Institute of Mathematics
  • Aigars Gedroics, University of Latvia
    Faculty of Physics and Mathematics

References

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De la Rosa, G., Peralta-Videa, J.R., Gardea-Torresdey, J.L. Utilization of ICP/OES for the determination of trace metal binding to different humic fractions. Journal of Hazardous Materials B97 (2003) 207–218.

Ho, Y.S., McKay, G. Sorption of copper (II) from aqueous solution by peat. Water Air Soil Pollut. 158 (2004) 77–97.

Ma, W., Tobin, J.M. Determination and modelling of effects of pH on peat biosorption of chromium, copper and cadmium. Biochemical Engineering Journal 18 (2004) 33–40.

Bear, J. Hydraulic of groundwater. Mc.Graw-Hill Inc., 1979.

Buikis, A. The analysis of schemes for the modelling some processes of filtration in the underground. Riga, Acta Universitatis Latviensis, vol. 592, 1994, 25-32 (in Latvian).

Thomas, J.W. Numerical partial differential equations. Finite difference methods. Springer Verlag, New York, Inc., 1995.

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Published

2015-08-05

How to Cite

[1]
Ērika Teirumnieka, I. Kangro, E. Teirumnieks, H. Kalis, and A. Gedroics, “The Mathematical Modeling of Ca And Fe Distribution In Peat Layers”, ETR, vol. 2, pp. 40–47, Aug. 2015, doi: 10.17770/etr2011vol2.1004.