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Award Abstract #0210865
Collaborative Research: NIRT: The Role of Nano-Scale Colloids in Particle Aggregation and Trace Metal Scavenging in Aquatic Systems
| NSF Org: |
CBET
Division of Chemical, Bioengineering, Environmental, and Transport Systems
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| Initial Amendment Date: |
September 10, 2002 |
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| Latest Amendment Date: |
September 10, 2002 |
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| Award Number: |
0210865 |
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| Award Instrument: |
Standard Grant |
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| Program Manager: |
Patrick L. Brezonik
CBET Division of Chemical, Bioengineering, Environmental, and Transport Systems
ENG Directorate for Engineering
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| Start Date: |
September 15, 2002 |
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| Expires: |
August 31, 2006 (Estimated) |
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| Awarded Amount to Date: |
$520275 |
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| Investigator(s): |
Peter Santschi santschi@tamug.edu (Principal Investigator)
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| Sponsor: |
Texas A&M Research Foundation
400 Harvey Mitchell Parkway, S
College Station, TX 77845 979/845-8600
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| NSF Program(s): |
NANOSCALE: INTRDISCPL RESRCH T,
ENVIRONMENTAL ENGINEERING
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| Field Application(s): |
0313040 Water Pollution,
0316000 Trace Contaminants
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| Program Reference Code(s): |
EGCH, 9197, 9187, 9169, 1674
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| Program Element Code(s): |
1674, 1440
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ABSTRACT
0210865 Santschi The aim of this proposal is to investigate the structural dynamics of aggregates of nano-scale colloidal particles and the role of the nano-scale fibrillar biopolymers in inorganic colloid aggregation. The proposal addresses the role that these structures play in the transport of trace metals and pollutants in natural environmental and engineered systems.
The combination of experimental studies encompassing microscopic methods (AFM and EM), synchrotron-based methods (SAXS, XAS), and multi-scale modeling will aid in elucidating the significance of particulate material in aquatic systems.
This project is collaborative and multi-disciplinary, combining expertise from chemistry, biology, and modeling to investigate the role of fibrils and macromolecules in inorganic colloid aggregation. Results of this work should help in the understanding the self-cleansing capacity of fresh, estuarine and marine waters through transport and sedimentation. Of special interest is the understanding of the similarities and differences between freshwater and seawater.
This proposal was received in response to the Nanoscale Science and Engineering Initiative, NSF 01-157, category NIRT.
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