| Main Title |
Nonequilibrium Sorption during Displacement of Hydrophobic Organic Chemicals and (45)Ca through Soil Columns with Aqueous and Mixed Solvents. |
| Author |
Nkedi-Kizza, P. ;
Brusseau, M. L. ;
Rao, P. S. C. ;
Hornsby., A. G. ;
|
| CORP Author |
Florida Univ., Gainesville. Dept. of Soil Science.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Publisher |
c1989 |
| Year Published |
1989 |
| Report Number |
EPA-R-811144; EPA/600/J-89/183; |
| Stock Number |
PB90-140906 |
| Additional Subjects |
Soil chemistry ;
Organic compounds ;
Solvents ;
Water pollution ;
Herbicides ;
Calcium ;
Cations ;
Transport properties ;
Diffusion ;
Experimental design ;
Numerical analysis ;
Mass transfer ;
Reaction kinetics ;
Reprints ;
Environmental transport ;
Land pollution
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-140906 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
A series of miscible displacement experiments was conducted to investigate the significance of intraorganic matter diffusion as the rate-limiting step in sorption of organic and inorganic solutes during steady water flow in soil columns. Displacement studies were performed using Eustis surface soil and the same soil treated with hydrogen peroxide to reduce soil organic carbon content from 0.2% to <0.01%. Two herbicides (diuron and atrazine) were also displaced with binary solvent mixtures containing varying fractions of methanol and water (0-50% methanol). A bi-continuum nonequilibrium sorption model was used to simulate the measured effluent breakthrough curves obtained by simultaneous displacement of a nonadsorbed tracer (tritiated water), an organic solute (herbicide), and a metal cation ((45)Ca). (Copyright (c) 1989 American Chemical Society.) |
| Supplementary Notes |
Pub. in Environmental Science and Technology, v23 n7 p814-820 Jul 89. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Nonequilibrium Sorption during Displacement of Hydrophobic Organic Chemicals and (45)Ca through Soil Columns with Aqueous and Mixed Solvents. |
| Category Codes |
48E; 99F; 68; 68D; 68E |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/15 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
005320468 |
| Origin |
NTIS |
| Type |
CAT |
