IEC 66 |
| Weixian Zhang, Department of Civil and Environmental Engineering, Department of Civil and Environmental Engineering, Lehigh University, Fritz Lab, Bethlehem, PA 18015 |
| Nanoscale bimetallic (Fe/Pd, 99.9% Fe) particles are among the vanguard of a new generation of remediation technologies that could provide cost-effective remedial solutions to some of the most difficult sites. Nanoparticles feature large surface areas and high surface reactivity. Equally important, they provide enormous flexibility for in situ remedial applications. Recent research at Lehigh University has developed several synthetic methods for nanoscale metallic particles and has proved their effectiveness as reductants and catalysts for a large variety of common environmental contaminants. Our work also includes several field tests demonstrating the feasibility of nanoparticles for in situ remediation of contaminated groundwater.Several key technical issues of the nanoscale bimetallic particle technology have been investigated and will be presented at the 2003 ASEE Annual Conference, the most important being the optimization and scaleup of the synthesis processes. Major results include: (1) robust methods for the synthesis of various nanoscale particles (Fe/Pd, Fe/Ag, Fe/Ni, Fe/Co, Fe/Cu etc), (2) feasibility studies (batch and column) of treatment of a wide variety (>50) of contaminants including chlorinated solvents, organochlorine pesticides, perchlorate (ClO4-) and chromium (Cr(VI)), PCB etc, (3) modeling and column studies of injection, transport and reactions of nanoparticles in porous media, and (4) results from two recent field tests
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Nanotechnology and the Environment
1:30 PM-5:25 PM, Monday, March 24, 2003 Convention Center -- Room 392, Oral
Division of Industrial and Engineering Chemistry |