Journal ArticleDOI
NAPL dissolution in heterogeneous systems: an experimental investigation in a simple heterogeneous system
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TLDR
In this article, the authors conducted dissolution experiments in a two-dimensional cell with simple heterogeneous packing consisting of well-defined coarse lenses contaminated by NAPL surrounded by a clean fine sand matrix, and sufficient experimental conditions were tested to suggest three important mechanisms affect the overall mass transfer behavior in this heterogeneous system.About:
This article is published in Journal of Contaminant Hydrology.The article was published on 2000-07-01. It has received 89 citations till now. The article focuses on the topics: Mass transfer.read more
Citations
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Journal ArticleDOI
Interfacial area measurements for unsaturated flow through a porous medium
K. A. Culligan,Dorthe Wildenschild,Dorthe Wildenschild,Britt Christensen,William G. Gray,Mark L. Rivers,Andrew F. B. Tompson +6 more
TL;DR: In this article, the authors used synchrotron based X-ray microtomography to investigate unsaturated flow through a glass bead column and found that the fluid-fluid interfacial area increasing as saturation decreases, reaching a maximum at saturations ranging from 20 to 35% and then decreasing as the saturation continues to zero.
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Pore-scale characteristics of multiphase flow in porous media: A comparison of air–water and oil–water experiments
TL;DR: In this article, the interfacial area is measured using a synchrotron-based CMT technique to obtain high-resolution 3D images of flow in a Soltrol-water-glass bead system.
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DNAPL source depletion: linking architecture and flux response.
TL;DR: The relationship between dense non-aqueous phase liquid (DNAPL) mass reduction and contaminant mass flux was investigated experimentally in four model source zones to investigate the relationship between flux and the up-gradient NAPL architecture.
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Estimating mass discharge from dense nonaqueous phase liquid source zones using upscaled mass transfer coefficients: An evaluation using multiphase numerical simulations
TL;DR: In this article, the authors compare upscaled model predictions of flux-weighted downstream concentrations and source longevity to predictions derived from three-dimensional multiphase numerical simulation of tetrachloroethene (PCE)-NAPL dissolution for realizations of a statistically homogeneous, nonuniform aquifer.
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Mass transfer correlations for nonaqueous phase liquid dissolution from regions with high initial saturations
TL;DR: In this paper, a new mass transfer correlation was developed using NAPL dissolution data from a small 2D experimental cell that contained a well-characterized heterogeneous distribution of grain sizes.
References
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Journal ArticleDOI
Dissolution of Trapped Nonaqueous Phase Liquids: Mass Transfer Characteristics
TL;DR: In this paper, the rate of interphase mass transfer between the nonaqueous phase liquids (NAPLs) phase and the aqueous phase is investigated in two-fluid systems.
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An experimental investigation of nonaqueous phase liquid dissolution in saturated subsurface systems: Transient mass transfer rates
TL;DR: In this paper, the authors focus on the experimental measurement and mathematical modeling of processes affecting the dissolution of nonaqueous phase liquids (NAPLs) entrapped in sandy porous media.
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Nonaqueous phase liquid transport and cleanup: 1. Analysis of mechanisms
TL;DR: In this article, the authors examined the physics governing the emplacement and movement of a separate phase in porous media, the role of sorption, and the conditions necessary to mobilize a separatephase.
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An experimental study of complete dissolution of a nonaqueous phase liquid in saturated porous media
TL;DR: In this paper, the attenuation of gamma radiation was utilized to measure changing residual trichloroethylene (TCE) saturation in an otherwise water-saturated porous medium as clean water was flushed through the medium.