This powerpoint presentation begins by providing a brief overview of surface complexation modeling (SCM), defined as "a thermodynamically based approach for
describing adsorption in which solutes
interact with functional groups on the
surface either through ion pair
association or solute-functional group
complexation". Overall research goals were to develop a methodology for:
refining and calibrating models for metal ion
adsorption, using a fixed SSD obtained
from tritium exchange experiments; and,
show that this methodology can be used
to model single solute adsorption as well
as adsorption in competitive systems. The modeling procedure is presented along with results that include: SCMs appear to be adequate for describing
single solute and bisolute sorption over a range
of experimental conditions;
fixing the surface site density value at 16.4
sites/nm<sup>2</sup> for goethite allowed to more
readily identify parameters that could fit single
and bi-solute data; and,
spectroscopy information is extremely
important for selecting appropriate surface
complexation reactions. Includes tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 560 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 10 |
| Published : | 11/01/2007 |
