Remediation of DNAPL-contaminated subsurface systems using density-motivated mobilization

Article Abstract:

Researchers from the University of North Carolina presented two remediation methods of dense nonaqueous phase liquids (DNAPLs) from the subsurface environment through the dense mobilization of DNAPLs.

University of North Carolina

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Remediation of DNAPL pools using dense brine barrier strategies

Article Abstract:

While dense nonaqueous phase liquid (DNAPL) pools are a significant contributor of groundwater contamination, few experiments have been conducted to gain knowledge on the problem, and few redemption strategies have been developed. The following report examines the importance of these features in subsurface systems, presents novel two- and three- dimensional heterogeneous experimental systems, and show results from two strategies which involved controlled mobilization of trapped DNAPL using small-volume surfactant flushes and the joint use of a dense brine barrier.

Nonaqueous solvents

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Modeling effective diffusivity of volatile organic componds in activated carbon fiber

Article Abstract:

This study undertakes the evaluation of an alternative model to predict the effective diffusivity of volatile organic compounds into activated carbon fiber, which is a feasible regenerative control process in the management of hazardous air pollutants. The study was conducted by the School of Environmental Science, Engineering and Policy, Drexel University; the Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, and the Illinois State Geological Survey.

Air Pollution Control R&D, Air pollution research, Pollution control research, University of Illinois (Urbana-Champaign), Drexel University. School of Environmental Science

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