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Book A Study of the Dissolution of Multicomponent Nonaqueous Phase Liquids in a Two dimensional Flow Field and Model Development

Download or read book A Study of the Dissolution of Multicomponent Nonaqueous Phase Liquids in a Two dimensional Flow Field and Model Development written by Seth Jared Okeson and published by . This book was released on 1995 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Theoretical Analyses of Nonaqueous Phase Liquid Dissolution induced Instability in Two dimensional Fluid saturated Porous Media

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 Dissolution of Multicomponent Non aqueous Phase Liquids Sources

Download or read book Dissolution of Multicomponent Non aqueous Phase Liquids Sources written by and published by . This book was released on 2005 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Investigating the Physics of Dissolution of Nonaqueous Phase Liquids

Download or read book Investigating the Physics of Dissolution of Nonaqueous Phase Liquids written by Leslie Allison Dillard and published by . This book was released on 1998 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Study of Transport and Dissolution of a Nonaqueous Phase Liquid in Porous Media

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 Dense Non Aqueous Phase Liquid DNAPL Physical Modeling Study

Download or read book Dense Non Aqueous Phase Liquid DNAPL Physical Modeling Study written by and published by . This book was released on 2002 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents the results of a physical modeling study performed at the Air Force Research Laboratory (AFRL) between June 6, 1996 and September 6, 1997 by a multidisciplinary team comprised of University of Florida (UF), Applied Research Associates, Inc. (ARA), and AFRL researchers. This study investigated the dissolution behavior of dense non-aqueous phase liquids (DNAPLs) in three-dimensional flow systems under controlled laboratory conditions.

Book Separation of Multiphase Multicomponent Systems

Download or read book Separation of Multiphase Multicomponent Systems written by Emmanuil G. Sinaiski and published by John Wiley & Sons. This book was released on 2007-09-24 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly detailed reference represents an elaborate development of the theory of processing oil and natural gas and its application in the field -- indispensable for graduate engineering students and professionals alike. The renowned expert author, a professor at Moscow State University, has ample experience in both lecturing and publishing, albeit in the Russian language. This book is thus the first to provide a translation compiling his extensive knowledge, much of which remained unpublished due to security restrictions in the former Soviet Union. Based upon and compiled from Professor Sinaiski's university lectures, the first chapters treat the technical facilities for preparing and processing natural hydrocarbon substances. The following systematic approach go on to explain the behaviors of fluids, gases and droplets separately for solutions, suspensions and emulsions, as well as for gas-liquid mixtures. The resulting work is of interest both for senior students as well as for engineers working in this field.

Book Characterization Dissolution and Enhanced Solubilization of Multicomponent Nonaqueous Phase Liquid in Porous Media

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 Stochastic Analysis of Dense Nonaqueous Phase Liquid Dissolution in Naturally Heterogeneous Subsurface Systems

Download or read book Stochastic Analysis of Dense Nonaqueous Phase Liquid Dissolution in Naturally Heterogeneous Subsurface Systems written by Xin Fu and published by . This book was released on 2002 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) The theoretical prediction is compared with the DNAPL concentration data from the Hanford site, where millions of pounds carbon tetrachloride were dumped in disposal facilities. In spite of the error and uncertainty involved in the field data, there is reasonable agreement between the field observations and the predicted mean DNAPL concentration field. It is concluded that the dominant factor affecting the field-scale DNAPL dissolution is the variability of the dissolution rate coefficient, which is a function of spatial distribution of DNAPL and permeability. The bypassing effect, reflecting the diversion of water flow around zones of high DNAPL saturation with low aqueous relative permeability, is another important factor that can reduce the effective dissolution rate significantly. The limitations of the study are discussed regarding the data collection and further evaluation of the extrapolation.

Book Modeling the Dissolution and Transport of a Multicomponent NAPL

Download or read book Modeling the Dissolution and Transport of a Multicomponent NAPL written by Ellen Anja Blackburn and published by . This book was released on 1998 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dissolution of Non aqueous Phase Organic Liquids in Porous Media

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 Dense Nonaqueous Phase Liquids

Download or read book Dense Nonaqueous Phase Liquids written by Deepak Gupta and published by . This book was released on 1998 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: