Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Multispecies Cation Leaching during Continuous Displacement of Electrolyte Solutions through Soil Columns.
Author Mansell, R. S. ; Bloom, S. A. ; Selim, H. M. ; Rhue, R. D. ;
CORP Author Florida Univ., Gainesville. ;Louisiana State Univ., Baton Rouge.;Corvallis Environmental Research Lab., OR.
Year Published 1986
Report Number EPA/600/J-86/369;
Stock Number PB87-198834
Additional Subjects Leaching ; Cations ; Soil science ; Porous materials ; Aquifers ; Electrolytes ; Ion exchanging ; Mathematical models ; Diffusion ; Magnesium ; Calcium ; Porosity ; Dispersing ; Soil water ; Fluid infiltration ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB87-198834 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 17p
A model based upon concepts of multispecies ion chromatography and mobile-immobile water was developed to simulate the leaching of major soil cations during steady, continuous infiltration of electrolyte solutions into soil columns. The model assumes that a fraction of exchange sites is readily accessible to the mobile solution located in large intra-aggregate pores and that the remaining slowly accessible exchange sites are located in the immobile solution inside smaller pores within aggregates. Ion exchange is assumed to occur instanteously for all of the partitioned exchange sites. Diffusive transfer of ions between the mobile and immobile solution phases results in a time lag for cation leaching from the two compartments of exchange sites, as well as early breakthrough for ion concentration in effluent flowing from the soil column. (Copyright (c) 1986 Elsevier Science Publishers B.V.)