| 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 ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB91-216283 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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 |
