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RECORD NUMBER: 12 OF 13

Main Title Sorption Kinetics of Hydrophobic Organic Compounds to Natural Sediments and Soils.
Author Wu, C. C. ; Gschwend., P. M. ;
CORP Author Massachusetts Inst. of Tech., Cambridge. Ralph M. Parsons Lab.;Environmental Research Lab., Athens, GA.
Publisher c1988
Year Published 1988
Report Number EPA-R-810472; EPA/600/J-86/517;
Stock Number PB90-142985
Additional Subjects Sorption ; Kinetics ; Organic compounds ; Sediments ; Soil chemistry ; Water pollution ; Mathematical models ; Diffusion ; Transport properties ; Experimental design ; Reprints ; Environmental transport ; Land pollution
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NTIS  PB90-142985 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Abstract
Sorption on sediment and soil particles plays a major role in controlling the fate of organic pollutants in aquatic environments. Sorption kinetics of hydrophobic organic chemicals to and from suspended sediment and soil particles is described by a radial diffusive penetration model modified by a retardation factor reflecting microscale partitioning of the sorbate between intra-aggregate pore fluids and the solids making up the aggregate grains. In light of this and other sorption kinetics models, a closed-loop-stripping apparatus with a photoionization detector operating in-line was used to examine the effects of sorbate hydrophobicity, sorbent particle size, and system temperature on solid-solute exchange over times of seconds to days. (Copyright (c) 1988 American Chemical Society.)