Record Display for the EPA National Library Catalog

RECORD NUMBER: 214 OF 382

OLS Field Name OLS Field Data
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
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Status
NTIS  PB89-123152 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/14/1989
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.