Record Display for the EPA National Library Catalog

RECORD NUMBER: 179 OF 356

OLS Field Name OLS Field Data
Main Title Landfill Leachate Effects on Sorption of Organic Micropollutants onto Aquifer Materials.
Author Larsen, T. ; Christensen, T. H. ; Pfeffer, F. M. ; Enfield, C. G. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Technical Univ. of Denmark, Lyngby. Dept. of Environmental Engineering.
Publisher c1992
Year Published 1992
Report Number EPA/600/J-92/235;
Stock Number PB92-198597
Additional Subjects Organic compounds ; Waste disposal ; Earth fills ; Land pollution ; Aquifers ; Environmental transport ; Experimental design ; Subsurface investigations ; Porous media ; Leaching ; Partition functions ; Water pollution ; Sorption ; Hydrology ; Reprints ; Dissolved organic carbon
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB92-198597 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/01/1993
Collation 21p
Abstract
The effect of dissolved organic carbon as present in landfill leachate, on the sorption of organic micropollutants in aquifer materials was studied by laboratory batch and column experiments involving 15 non-polar organic chemicals, 5 landfill leachates and 4 aquifer materials of low organic carbon content. The experiments showed that hydrophobic organic micropollutants do partition into dissolved organic carbon found in landfill leachate potentially increasing their mobility. However, landfill leachate interacted with aquifer materials apparently increases the sorbent affinity for the hydrophobic micropollutants. The combination of these two mechanisms affected the observed distribution coefficients within a factor of two, in some cases increasing and in other cases decreasing the sorption of the chemicals. No means for prediction of the effect is currently available, but from a practical point of view, the effect of landfill leachate on retardation of organic micropollutants in aquifer material seems limited. (Copyright (c) 1992 Elsevier Science Publishers B.V.)