Mass transfer processes and field-scale transport of organic solutes

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The influence of mass transfer processes, such as sorption/desorption and mass transfer between immiscible liquid and water, on the transport of organic solutes is discussed. Rate-limited sorption of organic solutes, caused by a diffusion-constrained mechanism, is shown to be significant under laboratory conditions. The significance of the impact of nonequilibrium sorption on field-scale transport is scale dependent. The impact of organic liquids on mass transfer and transport of organic solutes depends upon the nature of the solute and the nature and form of the organic liquid. For example, while retardation of nonionic solutes is decreased in mixed-solvent systems (i.e., systems comprised of water and a miscible organic liquid or an immiscible liquid present in concentrations below phase separation), the retardation of organic acids may, in some cases, increase with addition of a cosolvent. While the presence of an immiscible liquid existing as a mobile phase will reduce retention of organic solutes, the presence of of residual saturation of an immiscible liquid can significantly increase retention. A model is presented that incorporates the effects of retention resulting from residual saturation, as well as nonequilibrium sorption, on the transport of organic solutes.

Original languageEnglish (US)
Title of host publicationAtomic Energy of Canada Limited, AECL (Report)
PublisherPubl by AECL
Pages816-840
Number of pages25
Volume2
Edition10308
ISBN (Print)0662182375
StatePublished - Oct 1 1990
EventProceedings of the International Conference and Workshop on Transport and Mass Exchange Processes in Sand and Gravel Aquifers Part 2 (of 2) - Ottawa, Ont, Can
Duration: Oct 1 1990Oct 4 1990

Other

OtherProceedings of the International Conference and Workshop on Transport and Mass Exchange Processes in Sand and Gravel Aquifers Part 2 (of 2)
CityOttawa, Ont, Can
Period10/1/9010/4/90

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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  • Cite this

    Brusseau, M. L. (1990). Mass transfer processes and field-scale transport of organic solutes. In Atomic Energy of Canada Limited, AECL (Report) (10308 ed., Vol. 2, pp. 816-840). Publ by AECL.