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Radiotracer method in study of reactive transport across chemical gradients in porous media

Article

Summary

Modeling<Emphasis Type=”Bold”> </Emphasis>and experimental approaches to study reactive transport across chemical gradients in porous media are presented. Particular emphasis is placed on a<Emphasis Type=”Italic”> </Emphasis>purposeful experimental setup to obtain information necessary for model calibration and verification. As example, diffusion tube experiments on the layered acidic jarosite/alkaline coal fly ash system have been carried out using radiotracers <Superscript>3</Superscript>H<Superscript>+</Superscript>, <Superscript>22</Superscript>Na<Superscript>+</Superscript>, and <Superscript>59</Superscript>Fe<Superscript>3+</Superscript>. Such radiotracer diffusion tube experiments provide modelers with reliable information incorporating<Emphasis Type=”Bold”> </Emphasis>some of the complexities observed in the environment such as local heterogeneities.

Keywords

Porous Medium Tritium Pore Fluid Jarosite Reactive Transport 

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Copyright information

© Springer-Verlag/Akadémiai Kiadó 2005

Authors and Affiliations

  • M. Ding
    • 1
  1. 1.Los Alamos National Laboratory, Chemistry Division, Isotope and Nuclear Chemistry

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