UT researcher earns $1.3M grant to study toxic cleanup at...(. This project will focus specifica...)
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"This project will focus specifically on optimal management of DNAPL-contaminated sites, which pose a major problem at many DOD facilities," said Way Kuo, dean of the UT College of Engineering. "The ability to apply and evaluate these methods and computational tools at Hill and Dover Air Force bases will be of direct and immediate benefit."
Kuo said the study also may lead to conclusions applicable to other national policy issues, such as which approaches make most sense in the real world of complex and hard-to-characterize sites.
Costs for cleaning up these sites easily can run in tens of millions of dollars, with larger sites costing many times more, said Randall Gentry, ISSE director and associate professor in UT's Department of Civil and Environmental Engineering.
"If Parker's methodology achieves even modest cost reductions, cumulative savings to the federal government can run into the billions of dollars," said Gentry.
Current remediation technologies for DNAPL contamination of soil and water include, among other approaches, chemical and thermal treatment, enhanced microbial degradation, extraction with surfactants, treatment of extracted groundwater, monitored natural attenuation and use of various containment methods to limit further migration.
DNAPLs, which include well-known chemicals such as creosote, coal tar and PCBs, saw widespread use beginning in the mid-20th century and continuing until the 1980s, when monitoring revealed significant contamination of groundwater.
Love Canal, a neighborhood of the city of Niagara Falls, N.Y., has become synonymous with DNAPL contamination. The 10-square-block residential area -- home to nearly 1,000 families -- surrounded an abandoned landfill used by a chemical company as a dumping ground for thousands of tons of various hazardous wastes. The neighborhood, contaminated with DNAPLs and other toxic substances, ultimately was declared a Superfund
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| Contact: Jay Mayfield jay.mayfield@tennessee.edu 865-974-9409 University of Tennessee at Knoxville Source:Eurekalert |
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