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RECORD NUMBER: 467 OF 1150

OLS Field Name OLS Field Data
Main Title Influence of Organic Cosolvents on the Sorption Kinetics of Hydrophobic Organic Chemicals.
Author Brusseau, M. L. ; Wood, A. L. ; Rao, P. S. C. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Florida Univ., Gainesville. Dept. of Soil Science. ;Arizona Univ., Tucson. Dept. of Soil and Water Science.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-91/136;
Stock Number PB91-216283
Additional Subjects Soil science ; Sorption ; Organic solvents ; Mathematical models ; Environmental research ; Kinetics ; Organic matter ; Environmental transport ; Herbicides ; Land pollution ; Diffusion ; Reprints ;
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NTIS  PB91-216283 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/26/1991
Collation 10p
Abstract A quantitative examination of the kinetics of sorption of hydrophobic organic chemicals by soils from mixed solvents reveals that the reverse sorption rate constant k(sub 2) increases log-linearly with increasing volume fraction of organic cosolvent f(sub c). The relationship was expected, based on the existence of a log-log inverse relationship between k(sub 2) and the equilibrium sorption constant K(sub p), and a log-linear inverse relationship between K(sub p) and f(sub c). These results are interpreted in terms of a conceptual model wherein sorption kinetics is controlled by diffusion of sorbate within the matrix of sorbent organic matter. Decreased polarity of the mixed solvent, caused by the addition of a cosolvent, appears to influence the conformation of the polymeric organic matter and, hence, the rate of sorbate diffusion. (Copyright (c) 1991 by the American Chemical Society.)
Supplementary Notes Pub. in Environmental Science and Technology, v25 n5 p903-910 1991. See also PB86-164886. Prepared in cooperation with Florida Univ., Gainesville. Dept. of Soil Science, and Arizona Univ., Tucson. Dept. of Soil and Water Science.
NTIS Title Notes Journal article.
Title Annotations Reprint: Influence of Organic Cosolvents on the Sorption Kinetics of Hydrophobic Organic Chemicals.
Category Codes 48E; 99F; 68
NTIS Prices PC A02/MF A01
Primary Description 600/15
Document Type NT
Cataloging Source NTIS/MT
Control Number 125534554
Origin NTIS
Type CAT