The llnl.dat database released with PHREEQC and PhreeqcI contains the elements Cr, Mo, and V. This database is essentially the same as the databases used by EQ3/6 and Geochemist's Workbench. I have little experience in modeling these trace metals, so I do not have an understanding of the goodness of the thermodynamic data for these elements. However, the llnl.dat database could serve as a starting point for your investigations. The minteq.dat database has Cr and V, which you could check for consistency with llnl.dat. I suspect sorption (SURFACE definitions in PHREEQC) will be important for these trace metals, so you may have to develop a surface complexation model for the elements as well. David David Parkhurst (dlpark@xxxxxxxx) U.S. Geological Survey Box 25046, MS 413 Denver Federal Center Denver, CO 80225 Project web page: https://wwwbrr.cr.usgs.gov/projects/GWC_coupled
Please note that some U.S. Geological Survey (USGS) information accessed through this page may be preliminary in nature and presented prior to final review and approval by the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the sole responsibility of the user.
Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.
The URL of this page is:
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number 2454 since Jan 22, 1998.