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Workshop 2: Future Directions in Synchrotron Environmental Science

Co-organizers: Steve Sutton, Ken Kemner, and Shelly Kelly

The purpose of the workshop is to evaluate future directions in environmental science amenable to experimentation with synchrotron radiation. The intent is to focus on frontier science and to evaluate the science-driven requirements for future instrumentation. Although the focus will be on research opportunities at the APS, this will not be a strict limitation. The outcome will be a summary to be submitted to the committee on "Future Scientific Directions for the Advanced Photon Source" chaired by G. Shenoy and S. Sinha.

Tuesday, May 4, 2004
Guest House, Conference Room A

8:45 am Overview of Synchrotron Environmental Science
Ken Kemner, Argonne National Laboratory
9:00 How do Metal-Reducing Bacteria Deal with Solid Phases?
Jim Frederickson, Pacific Northwest National Laboratory
9:30 Surface Complexation Models of Metal Cation Adsorption onto Bacterial Surfaces
Jeremy Fein, University of Notre Dame
10:00 Bioremediation of U-Contaminated Subsurface Environments and the Role of Synchrotron Based X-ray Absorption Measurements
Shelly Kelly, Argonne National Laboratory
10:30 Break
11:00 Application of Synchrotron Radiation Based Techniques to the Biogenic Oxidation of Manganese
Sam Webb, Stanford University

Environmental Science using the PNC-CAT Microprobes and Possible Future Directions
Steve Heald, Pacific Northwest National Laboratory

12:00 pm Lunch
1:30 Mineral-Water Interface Studies
Tom Trainor, University of Alaska

Elemental, Chemical and Structural Characterization of Mineral-Water Interfaces with X-ray Scattering Techniques
Paul Fenter, Argonne National Laboratory


Correlating Metal Speciation in Soils to Risk
Kirk Scheckel, Environmental Protection Agency-Cincinnati

3:00 Break
3:15 Impact of Redox Disequilibria on Contaminant Transport and Remediation in Subsurface Systems
Robert Ford, Environmental Protection Agency-Oklahoma
3:45 Resolving Biogeochemical Processes of Metals within Physically and Chemical Heterogeneous Media
Scott Fendorf , Stanford University
4:15 Workshop Summary
Paul Bertsch, University of Georgia/SREL
4:45 Adjourn


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