Dense non-aqueous phase liquids (DNAPLs) are chemical compounds that can contaminate soil and groundwater to the point of irreparability. These substances are only slightly soluble in water, and are much denser than water. Because of these characteristics, DNAPLs form separate liquid phases in groundwater, and because of their density, DNAPLs sink in aquifers instead of floating at the water table, making it extremely difficult to detect their presence. If left untreated in the ground, they can taint fresh water sources. Through the direction and guidance of Dr. Jacqueline Quinn, an environmental engineer in the Spaceport Engineering and Technology Directorate at NASA’s Kennedy Space Center, a biodegradable environmental cleanup technology was developed to reductively dechlorinate DNAPL sources, created by a solvent for flushing rocket engines, at Launch Complex 34-home to several historic Saturn rocket launches. Quinn and three University of Central Florida professors developed the Emulsified Zero-Valent Iron (EZVI) technology, with collaborative support from the U.S. Department of Energy, the U.S. Department of Defense, the U.S. Environmental Protection Agency (EPA), GeoSyntec, Inc., and NASA’s Small Business Technology Transfer (STTR) Program. EZVI uses iron particles in an environmentally friendly oil and water base to neutralize toxic chemicals. Following this effort, non-exclusive licenses for EZVI were issued to several companies, including Weston Solutions, Inc., and Toxicological and Environmental Associates, Inc. Both companies have experienced high-success rates in using this technology to remediate DNAPL-polluted sites across the county. SpinOff Story: Valiant ‘Zero-Valent’ Effort Restores Contaminated Grounds Video Rating: / 5 Related PostsGreen RoofsInfrastructure Improvements – Weston Solutions, Inc.U.S. Dept of Energy Public Meeting (Pt 3 of 5) in Washington, PANovel Technology to Improve Green RoofsThe Future of Farming: Hydroponic TomatoesGreen Revolution Series: Green Roofs
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