| Main Title |
Sorption Nonequilibrium during Solute Transport (Journal Version). |
| Author |
Bouchard, D. C. ;
Wood, A. L. ;
Campbell, M. L. ;
Nkedi-Kizza, P. ;
Rao, P. S. C. ;
|
| CORP Author |
Robert S. Kerr Environmental Research Lab., Ada, OK. ;Florida Univ., Gainesville. |
| Publisher |
c1988 |
| Year Published |
1988 |
| Report Number |
EPA/600/J-88/132; |
| Stock Number |
PB89-119861 |
| Additional Subjects |
Water pollution ;
Groundwater ;
Chemisorption ;
Nonequilibrium flow ;
Soil pressure ;
Sorbents ;
Soil chemistry ;
Surface chemistry ;
Transport properties ;
Diffusion coefficient ;
Solutes ;
Organic compounds ;
Path of pollutants
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB89-119861 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
16p |
| Abstract |
The effects of pore-water velocity, solute hydrophobicity, and sorbent organic-carbon content on sorption nonequilibrium during solute transport were evaluated. Nonequilibrium transport was observed to increase with pore-water velocity, solute hydrophobicity, and sorbent organic-carbon content. Nonequilibrium transport of neutral organic compounds was not detected with low organic-carbon aquifer material, but was detected on higher organic sorbents from the unsaturated zone and the soil surface. For solute-sorbent combinations yielding retardation factors above 2, nonequilibrium during transport was observed. After experimentally accounting for slow solute diffusion in the aqueous phase and isotherm nonlinearity as potential contributors to nonequilibrium solute transport, sorption nonequilibrium was attributed to slow solute diffusion within the organic-carbon matrix. (Copyright (c) 1988 Elsevier Science Publishers B.V.) |
| Supplementary Notes |
Prepared in cooperation with Florida Univ., Gainesville. |
| Availability Notes |
Pub. in Jnl. of Contaminant Hydrology, v2 n3 p209-223 Jul 88. |
| NTIS Title Notes |
Journal article. |
| Category Codes |
68D; 48G; 48E |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/15 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
836527181 |
| Origin |
NTIS |
| Type |
CAT |
