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Showing 1 to 8 of 8 for “"Nonaqueous phase liquids."”.
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Numerical Modeling of Steam Flushing for Removal of Dense Nonaqueous Phase Liquids
… thermal treatment technologies for non-aqueous phase liquid (NAPL) contaminants and a number of sophisticated numerical models have been developed for simulating thermal remediation. In the first part of this study the fundamental mechanisms associated with thermal remediation are examined and …
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Geotechnical centrifuge modeling of the behavior of light nonaqueous phase liquids (LNAPLs) in sand samples under hydraulic flushing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1996.
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Modeling the impact of petroleum mixtures released from railroad tank car accidents on groundwater contamination and cleanup times
… migration and entrapment in the subsurface of nonaqueous phase liquids released due to railroad tank car accidents. The properties include density, viscosity, surface and interfacial tension. Several models are used to predict pure compounds properties, similar mixture properties, and …
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Assessing Various Technologies to Remediate a Hydrocarbon Contaminated Aquifer
Releases of nonaqueous phase liquids (NAPLs) to groundwater systems are a serious and widespread problem throughout the United States. Research was conducted to determine if numerical groundwater flow and transport models could evaluate the effectiveness of alternative remedial strategies to reduce …
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Reaction Rates For The Dehalogenation Of Trichloroethylene Using Various Types Of Zero-valent Iron
… reactive agent for the remediation of dense, nonaqueous-phase liquids (DNAPLs). Permeable reactive barrier walls (PRBW) have been installed at many sites around the country to treat contaminated plumes resulting from the presence of DNAPL pools. The use of zero-valent metals, such as iron, to …
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Biotic control of LNAPL longevity - laboratory and field- scale studies
… is an emerging strategy for managing light nonaqueous phase liquids (LNAPLs). Unfortunately, little is known about NSZD rates over extended periods of time, where heterogeneous redox conditions and changing LNAPL saturations may influence processes governing losses. Understanding long-term …
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Dynamics of residual non-aqueous phase liquids in porous media subject to freeze-thaw
… cycles on the pore-scale structure of nonaqueous phase liquid (NAPL) contaminants in water-saturated porous media. This problem is of critical importance to the entrapment of such contaminants in cold temperate, polar and high altitude regions, and has not been examined in the …
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Solubilization of oil mixtures in anionic surfactant microemulsions.
… been studied, using dissimilar oil components. Phase behavior, solubilization, and interfacial tension studies have been carried out with three model oil mixtures: TCE-acetone, benzene---limonene, and dodecanol---limonene. In the TCE-acetone mixture acetone diluted the surfactant monolayer at …