| Main Title |
Modified Langmuir Equation for Predicting Sorption of Methylacridinium Ion in Soils and Sediments. |
| Author |
Brown, D. S. ;
Combs, G. ;
|
| CORP Author |
Environmental Research Lab., Athens, GA. |
| Year Published |
1985 |
| Report Number |
EPA/600/J-85/058; |
| Stock Number |
PB85-219715 |
| Additional Subjects |
Soil analysis ;
Sediments ;
Sorption ;
Mathematical models ;
Environmental surveys ;
Ions ;
Cations ;
Cation exchanging ;
Ion exchanging ;
Chemical properties ;
Calibrating ;
Electrolytes ;
Reprints ;
Acridinium/methyl ;
Langmuir equations ;
Numerical solution
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB85-219715 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
An empirical model for predicting sorption isotherms of organic cations was tested using a set of 10 soils and sediments. The model is based on a competitive Langmuir equation with modifications for grouping the various competing ion species and for normalizing over a broad range of sediment properties. Normalization is accomplished by substituting cation exchange capacities (CECs) determined with NH4(+1) for the Langmuir capacity term. Natural exchange ions are grouped and treated as a single competing species for simplicity. A single calibration enables estimation of sorption isotherms for other sediments for which estimates of CECs and competing electrolyte concentrations are known. |
