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Characterization Of Non Aqueous Phase Liquid Dissolution In Porous Media Using Nuclear Magnetic Resonance Imaging
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Book Synopsis Characterization of Non-aqueous Phase Liquid Dissolution in Porous Media Using Nuclear Magnetic Resonance Imaging by : Alicia Renee Aragon
Download or read book Characterization of Non-aqueous Phase Liquid Dissolution in Porous Media Using Nuclear Magnetic Resonance Imaging written by Alicia Renee Aragon and published by . This book was released on 2000 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Non-aqueous Phase Liquid Sources in Porous Media by :
Download or read book Characterization of Non-aqueous Phase Liquid Sources in Porous Media written by and published by . This book was released on 2000 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization, Dissolution, and Enhanced Solubilization of Multicomponent Nonaqueous Phase Liquid in Porous Media by : Kenneth Cooper Carroll
Download or read book Characterization, Dissolution, and Enhanced Solubilization of Multicomponent Nonaqueous Phase Liquid in Porous Media written by Kenneth Cooper Carroll and published by . This book was released on 2007 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multicomponent nonaqueous phase liquids (NAPL) contaminating the subsurface can significantly inhibit remediation. One method of enhancing the rate of remediation of NAPL constituents, compared to pump-and-treat, involves source zone treatment with enhanced solubilization agents (ESAs) including cyclodextrins. Equilibrium cyclodextrin enhanced solubilization of simple 1, 2, and 3 component NAPL mixtures was examined to evaluate the applicability of Raoult's Law. The results suggest that Raoult's Law may be used to estimate equilibrium and early-time dynamic concentrations in contact with ideal NAPL mixtures, and Raoult's Law may be used to estimate cyclodextrin enhanced groundwater concentrations for ideal NAPL mixtures. Solubility enhancement of NAPL compounds was dependent on the cyclodextrin concentration and independent of NAPL composition. Column experiments and numerical modeling were used to evaluate the dissolution behavior of the NAPL mixtures in water and a cyclodextrin solution to estimate mass transfer rates. The aqueous multicomponent dissolution followed Raoult's Law, and the model-estimated lumped rate coefficients were independent of the NAPL composition. Addition of the cyclodextrin enhanced the dissolution and removal of compounds from residual NAPL due to an increase in the driving force (i.e. concentration gradient) and the mass transfer coefficient. The model results suggest that Raoult's Law is applicable for ideal NAPL mixture dissolution in water, but potential nonideality was observed and caused the model simulation to deviate from the dissolution behavior for NAPL mixture cyclodextrin experiments. The cyclodextrin dissolution experiments were less rate-limited than aqueous dissolution, and the mass transfer coefficients were quantified with the model. The results of the model suggest that NAPL mixture nonideality and intra-NAPL diffusion may also impact enhanced dissolution behavior. Additionally, the importance of NAPL mixture characterization was illustrated by evaluation of a mixture of PCE (tetrachloroethene) and diesel fuel collected from a site in Tucson, Arizona. A sample from the site was used to create mixtures with increasing PCE in the NAPL. Chemical evaluation of the complex NAPL was conducted, and physical property and phase partitioning testing was performed, which demonstrated the effect of NAPL composition on its distribution, interphase mass transfer, and potential mobilization.
Book Synopsis Determination and characterization of dense nonaqueous phase liquids in saturated porous media using inverse modeling by : Charles Edward Tilburg
Download or read book Determination and characterization of dense nonaqueous phase liquids in saturated porous media using inverse modeling written by Charles Edward Tilburg and published by . This book was released on 1994 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissolution of Nonaqueous Phase Liquids in Porous Media by : Thomas Scott Soerens
Download or read book Dissolution of Nonaqueous Phase Liquids in Porous Media written by Thomas Scott Soerens and published by . This book was released on 1995 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissolution of a Nonaqueous Phase Liquid in Saturated Porous Media by : Paul T. Imhoff
Download or read book Dissolution of a Nonaqueous Phase Liquid in Saturated Porous Media written by Paul T. Imhoff and published by . This book was released on 1992 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts written by and published by . This book was released on 1993 with total page 1752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissolution of Non-aqueous Phase Organic Liquids in Porous Media by : Jil Talkovsky Geller
Download or read book Dissolution of Non-aqueous Phase Organic Liquids in Porous Media written by Jil Talkovsky Geller and published by . This book was released on 1990 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical Analyses of Nonaqueous Phase Liquid Dissolution-induced Instability in Two-dimensional Fluid-saturated Porous Media by : Chongbin Zhao
Download or read book Theoretical Analyses of Nonaqueous Phase Liquid Dissolution-induced Instability in Two-dimensional Fluid-saturated Porous Media written by Chongbin Zhao and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissolution of Nonaqueous Phase Liquid Pools in Saturated Porous Media by : Kenneth Y. Lee
Download or read book Dissolution of Nonaqueous Phase Liquid Pools in Saturated Porous Media written by Kenneth Y. Lee and published by . This book was released on 1999 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Porous Media Heterogeneity on Nonaqueous Phase Liquid Dissolution Fingering and Upscaled Mass Transfer by : Matthew W. Farthing
Download or read book Influence of Porous Media Heterogeneity on Nonaqueous Phase Liquid Dissolution Fingering and Upscaled Mass Transfer written by Matthew W. Farthing and published by . This book was released on 2012 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissolution Mass Transfer of Trapped Phase in Porous Media by : Anindityo Patmonoaji
Download or read book Dissolution Mass Transfer of Trapped Phase in Porous Media written by Anindityo Patmonoaji and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dissolution mass transfer of trapped phase (TP) to flowing phase (FP) in porous media plays significant roles in hydrogeology, e.g., groundwater contamination by non-aqueous phase liquids, groundwater in-situ bioremediation, and geological carbon sequestration. In this chapter, this phenomenon is described. First, the physical and mathematical models are given. Afterwards, various conditions affecting this process, i.e., porous media characteristics, capillary trapping characteristics, flow bypassing, TP characteristics, and FP velocity, are discussed. These various conditions are described based on three parameters affecting the dissolution mass transfer: TP interfacial area (A), TP dissolution ratio (ξ), and mass transfer coefficient (k). Eventually, models to predict the mass transfer are formulated based on non-dimensional model. All of the data in this chapter are based on the experiments obtained by using micro-tomography and a series of image processing techniques from our latest works.
Book Synopsis Study of Transport and Dissolution of a Nonaqueous Phase Liquid in Porous Media by : Mirrya Mosier Fontenot
Download or read book Study of Transport and Dissolution of a Nonaqueous Phase Liquid in Porous Media written by Mirrya Mosier Fontenot and published by . This book was released on 2001 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transport and dissolution of residual non-aqueous phase liquids (NAPLS) trapped in water saturated porous media is a problem pertinent to both environmental and petrochemical industries. In this work we have quantitatively examined the complete dissolution of residual entrapped NAPL at the pore-scale in three dimensions using refractive index matching techniques along with planar laser induced fluorescence. The results yielded pore-scale information regarding ganglia volume, surface area, and position over time at various Capillary numbers. We found that with increasing Capillary numbers, the time for total dissolution decreased. In addition, it appears that large ganglia exhibit fractal area to volume scaling. We were also able to examine the distributions of the ganglia in the direction of flow over time. The use of low-frequency flow pulsations as a removal technique was also examined. A two dimensional micro model was used for these studies. We found that for this system, lower frequencies and higher amplitudes were more effective in NAPL removal due to breakup and mobilization. We also examined the effect of increasing amplitude and continuous versus pulsed stimulation. In addition, mass transport in the presence of a surfactant was also enhanced due to flow pulsation with lower frequencies and higher amplitudes again being most effective.
Book Synopsis Nuclear Magnetic Resonance by : G A Webb
Download or read book Nuclear Magnetic Resonance written by G A Webb and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a spectroscopic method, nuclear magnetic resonance (NMR) has seen spectacular growth, both as a technique and in its applications. Today's applications of NMR span a wide range of scientific disciplines, from physics to biology to medicine. Each volume of Nuclear Magnetic Resonance comprises a combination of annual and biennial reports which together provide comprehensive coverage of the literature on this topic. This Specialist Periodical Report reflects the growing volume of published work involving NMR techniques and applications, in particular NMR of natural macromolecules, which is covered in two reports: NMR of Proteins and Nucleic Acids; and NMR of Carbohydrates, Lipids and Membranes. For those wanting to become rapidly acquainted with specific areas of NMR, Nuclear Magnetic Resonance provides unrivalled scope of coverage. Seasoned practitioners of NMR will find this an invaluable source of current methods and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading experts in their specialist fields, this series is designed to help the chemistry community keep current with the latest developments in their field. Each volume in the series is published either annually or biennially and is a superb reference point for researchers. www.rsc.org/spr
Book Synopsis Characterization of Complex Non-aqueous Phase Liquids (NAPLs) in the Subsurface Environment by : Matthias Piepenbrink
Download or read book Characterization of Complex Non-aqueous Phase Liquids (NAPLs) in the Subsurface Environment written by Matthias Piepenbrink and published by . This book was released on 2007 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Flow and Packing Structure in Porous Media Using NMR Imaging by : David Gregory Bibbs
Download or read book Characterization of Flow and Packing Structure in Porous Media Using NMR Imaging written by David Gregory Bibbs and published by . This book was released on 1995 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Anneaux de Gorenstein, et torsion en algèbre commutative by :
Download or read book Anneaux de Gorenstein, et torsion en algèbre commutative written by and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
