| Main Title |
Metal Interactions at Sulfide Mineral Surfaces. Part 2. Adsorption and Desorption of Lanthanum. |
| Author |
Lin, Y. ;
Bailey, G. W. ;
Lynch, A. T. ;
|
| CORP Author |
Environmental Research Lab., Athens, GA. ;Academia Sinica, Beijing (China). ;Technology Applications, Inc., Athens, GA. |
| Publisher |
Oct 88 |
| Year Published |
1988 |
| Report Number |
EPA/600/D-88/220; |
| Stock Number |
PB89-123152 |
| Additional Subjects |
Mining ;
Tailings ;
Lanthanum ;
Sulfide minerals ;
Soil chemistry ;
Water pollution ;
Groundwater ;
Adsorption ;
Desorption ;
EDTA ;
Model tests ;
Path of pollutants
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB89-123152 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
45p |
| Abstract |
Batch-type adsorption experiments with four sulfide minerals (chalcocite, galena, pyrite, and sphalerite) were used to investigate the adsorption and desorption behavior of lanthanum (III) in the presence of ethylenediaminetetraacetic acid (EDTA), a model humic substance. Linear adsorption was found in all cases. The presence of EDTA caused a 5- to 10-fold increase of La(III) adsorbed and also changed the order of adsorption of the four minerals. The presence of a soluble organic complexing ligand like EDTA should reduce the mobility of La(III) in porous media and its transport to groundwater in the percolating soil solution. Binding mechanisms are proposed to account for this preferential adsorption behavior. |
