First U.S. controlled-release site opens to test technologies at Dover Air Force Base

Article Abstract:

Field tests aimed to determine the effects of groundwater contaminants to the ground and aquifer have begun at the Groundwater Remediation Field Laboratory at the Dover Air Force Base site in Delaware. On May 31, 1996, researchers began conducting controlled-release experiments in which fuel-solvent mixtures containing trichloroethylene, tetrachloroethylene and chlorobenzene were injected into the ground and groundwater, forming a spill which researchers will remediate using cometabolic bioventing. The technology involves injecting oxygen into the spill to stimulate microbes which will degrade the solvents as they degrade the fuel.

Testing Laboratories, Environmental Testing Labs, Testing, Pollution, Water, Underground, Groundwater, Solvents, Fuel, Fuels, Environmental laboratories

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"Lasagna process" field success increases DOE's interest

Article Abstract:

DOE Office of Technology and Development Head Clyde Frank will allow the application of the lasagna process in the second phase of testing and cleanup at DOE sites in Paducah, KY. In the first field test, the process allowed the removal of 98.4%-99% of trichloroethylene (TCE) with activated carbon from low-permeability soil. Engineers expect to degrade TCE in the soil through in situ degradation using zero-valent iron. They believe the approach affords them to significantly reduce cleanup costs, especially for bigger field testing sites.

Soil degradation, Trichloroethylene, Environmental testing, Paducah, Kentucky

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Bioremediation consortium to tackle chlorinated solvents

Article Abstract:

The EPA formed a consortium with the Dept. of Energy, the U.S. Air Force and several manufacturers on Aug. 8, 1995, to demonstrate in situ intrinsic and accelerated anaerobic bioremediation methods for chlorinated solvents. The project will focus on tetrachloroethylene and trichloroethylene (TCE) in groundwater and cometabolic bioinventing for TCE in subsurface soils. The EPA will fund $1 million of the program's $13-$15 million total cost up to year 2000.

Manufacturing industry, Manufacturing industries, United States. Air Force, United States. Environmental Protection Agency, Environmental policy, Chlorine compounds

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