Dissolution, cyclodextrin-enhanced solubilization, and mass removal of an ideal multicomponent organic liquid

Carroll, Kenneth C.; Brusseau, Mark L.

doi:10.1016/j.jconhyd.2009.01.002

Cited by 31 publications

(20 citation statements)

References 44 publications

(55 reference statements)

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“…Several studies have examined specific relationships between mass flux reduction and mass removal Rao and Jawitz 2003;Brooks et al 2004;Lemke et al 2004;Parker and Park 2004;Soga et al 2004;Falta et al 2005;Jawitz et al 2005;NRC 2005;Fure et al 2006;Lemke and Abriola 2006;Brusseau et al 2007Brusseau et al , 2008Basu et al 2008;DiFilippo and Brusseau 2008;Marble et al 2008;Carroll and Brusseau 2009). Many of these studies have generally categorized mass flux behavior as ideal or nonideal based on the degree of physical heterogeneity of the porous medium (or aquifer) and/or by the distribution of immiscible liquid in the system.…”

Section: Mass Flux Behaviormentioning

confidence: 99%

“…Chemical agents have been utilized in laboratory, intermediate, and field-scale experiments including cosolvents Rao et al 1985;USEPA 1985;Boyd and Farely 1992;Brandes and Farley 1993;Peters and Luthy 1993;Augustijn et al 1994;Imhoff et al 1995;Roy et al 1995;Wang and Brusseau 1995a;Wood 1995;Rao et al 1997;Sillan et al 1998;Falta et al 1999;Jawitz et al 2000;Chawla et al 2001;Brooks et al 2004), surfactants (Abdul et al 1990;Abdul and Gibson 1991;Edwards et al 1991;Fountain et al 1991;Pennel et al 1993;Rouse et al 1993;Brown et al 1994;Shiau et al 1994;Adeel and Luthy 1995;Hasegawa et al 1997;Childs et al 2006), and complexing sugar agents Brusseau 1993, 1995a b;Brusseau et al 1994Brusseau et al , 1997Bizzigotti et al 1997;Wang et al 1998;Brusseau 1998, 1999;Boving et al 1999;Boving and Brusseau 2000;McCray et al 2000;Blanford et al 2001;Tick et al 2003;Carroll and Brusseau 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Evaluating the enhanced-solubilization experiments based on consistent comparison is critical for predicting contaminant transport, conducting risk assessments, and implementing appropriate remediation strategies for sites contaminated by immiscible liquids. Further knowledge, combined from previous studies within more complex systems (e.g., Boving and Brusseau 2000;Brusseau et al 2002;Lemke et al 2004;Fure et al 2006;Basu et al 2008;Brusseau et al 2007Brusseau et al , 2008DiFilippo and Brusseau 2008;Marble et al 2008;Carroll and Brusseau 2009) and newly developed experiments, will allow for a better understanding of the processes that control mass flux behavior, elution behavior, and mass removal from remediation systems utilizing enhanced-solubilization flushing.…”

mentioning

confidence: 99%

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Effect of Enhanced-Solubilization Agents on Dissolution and Mass Flux from Uniformly Distributed Immiscible Liquid Trichloroethene (TCE) in Homogeneous Porous Media

Tick

Rincon

2009

Water Air Soil Pollut

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The use of enhanced-flushing technologies has emerged as a promising technique for the remediation of sites contaminated with immiscible liquids. An important aspect for the effective remediation of these sites depends on the physical heterogeneity of the subsurface and the related distribution of immiscible liquid present within porous media. Recent interest has developed in using mass fluxbased approaches to evaluate remediation success and performance for immiscible liquid-contaminated sites. The unique focus of these experiments was to evaluate trichloroethene (TCE) mass flux behavior and mass removal effectiveness for various solubilization agents when the distribution of immiscible liquid is uniform. In order to accurately compare the performance of each enhanced-solubilization agent, the distribution of immiscible liquid must be consistent and uniform. Previous dissolution experiments have typically relied upon injecting immiscible liquid into the porous media which can result in nonuniform immiscible liquid distribution causing nonideal dissolution and mass flux behavior (i.e., immiscible liquid fingering and bypass flow). Homogeneous 20/30 quartz sand was thoroughly mixed with a predetermined amount of immiscible liquid TCE and packed into columns to ensure that uniform distributions of residually saturated TCE (S N =8-11%) were created. These columns were then flushed with a specific enhanced-solubilization flushing agent to initiate dissolution. Of the four enhanced-solubilization used, the lower solubilization power flushing agents (i.e., cyclodextrins) resulted in more ideal TCE mass flux behavior in which mass flux is maximized and maintained during the majority of the flushing experiment. A strong positive correlation (R 2 =0.92) exists between enhancement factor and mass flux ideality which may suggest that these systems were in fact uniformly distributed with immiscible liquid. In order to appropriately evaluate and compare the effectiveness of specific solubilization agents, it is important to consider mass flux behavior in conjunction with elution behavior and mass removal efficiency.

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Section: Mass Flux Behaviormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Effect of Enhanced-Solubilization Agents on Dissolution and Mass Flux from Uniformly Distributed Immiscible Liquid Trichloroethene (TCE) in Homogeneous Porous Media

Tick

Rincon

2009

Water Air Soil Pollut

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“…The CMDR-MR relationship is a defining characteristic of system behavior, and is mediated by system properties and conditions such as permeability distribution, contaminant distribution, and mass-transfer processes. These relationships have been characterized in several laboratory and mathematical-modeling studies (Rao et al, 2002; Jayanti and Pope, 2004; Phelan et al, 2004; Jawitz et al, 2005; Fure et al, 2006; Brusseau et al, 2008; DiFilippo and Brusseau, 2008; Kaye et al, 2008; Maji and Sudicky, 2008; Carroll and Brusseau, 2009; Christ et al, 2009, 2010; Tick and Rincon, 2009; DiFilippo et al, 2010; Marble et al, 2010). However, very few measurements of CMDR-MR relationships have been reported to date for field systems (Brusseau et al, 2007; DiFilippo and Brusseau, 2008).…”

Section: Introductionmentioning

confidence: 99%

Characterizing long-term contaminant mass discharge and the relationship between reductions in discharge and reductions in mass for DNAPL source areas

Brusseau

Matthieu

Carroll

et al. 2013

Journal of Contaminant Hydrology

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The objective of this study was to characterize the temporal behavior of contaminant mass discharge, and the relationship between reductions in contaminant mass discharge and reductions in contaminant mass, for a very heterogeneous, highly contaminated source-zone field site. Trichloroethene is the primary contaminant of concern, and several lines of evidence indicate the presence of organic liquid in the subsurface. The site is undergoing groundwater extraction for source control, and contaminant mass discharge has been monitored since system startup. The results show a significant reduction in contaminant mass discharge with time, decreasing from approximately 1 to 0.15 kg/d. Two methods were used to estimate the mass of contaminant present in the source area at the initiation of the remediation project. One was based on a comparison of two sets of core data, collected 3.5 years apart, which suggests that a significant (~80%) reduction in aggregate sediment-phase TCE concentrations occurred between sampling events. The second method was based on fitting the temporal contaminant mass discharge data with a simple exponential source-depletion function. Relatively similar estimates, 784 and 993 kg, respectively, were obtained with the two methods. These data were used to characterize the relationship between reductions in contaminant mass discharge (CMDR) and reductions in contaminant mass (MR). The observed curvilinear relationship exhibits a reduction in contaminant mass discharge essentially immediately upon initiation of mass reduction. This behavior is consistent with a system wherein significant quantities of mass are present in hydraulically poorly accessible domains for which mass removal is influenced by rate-limited mass transfer. The results obtained from the present study are compared to those obtained from other field studies to evaluate the impact of system properties and conditions on mass-discharge and mass-removal behavior. The results indicated that factors such as domain scale, hydraulic-gradient status (induced or natural), and flushing-solution composition had insignificant impact on the CMDR-MR profiles and thus on underlying mass-removal behavior. Conversely, source-zone age, through its impact on contaminant distribution and accessibility, was implicated as a critical factor influencing the nature of the CMDR-MR relationship.

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“…Although Raoult's law convention has been successfully used to describe the solubility of hydrophobic organic compounds in solutions of cyclic oligosaccharides, cyclodextrin (Carroll and Brusseau 2009), this may not be the case in micellar solutions. For example, Nagarajan et al (1984) examined the solubility of benzene in aqueous solutions of sodium dodecyl sulfate (SDS) and cetyltrimethylammonium chloride (CTAC) in mixtures of benzene and hexane.…”

Section: Ii121 Introduction To Dissolution and Micellar Solubilizmentioning

confidence: 99%

Metric Identification and Protocol Development for Characterizing DNAPL Source Zone Architecture and Associated Plume Response

Abriola¹,

Miller²,

Pennell³

et al. 2013

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY)2. REPORT TYPE SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION / AVAILABILITY STATEMENT SUPPLEMENTARY NOTES ABSTRACTThe overarching goal of this research is to develop and demonstrate a comprehensive approach for field characterization of DNAPL source zones which quantifies the key features that control plume response. Here the intent is to integrate targeted (local-scale) in situ tests with transect-based observations of downstream contaminant flux or concentration and information on subsurface geologic variability. To address its primary goal, the research encompasses the following specific objectives: (1) identification of the most information rich metrics for linking NAPL architecture to plume response; (2) development and refinement of in situ test methods and modeling tools that can be used to quantify identified metrics in targeted regions of the source zone; (3) integration of these metrics and tools with current machine learning characterization methods for an overall source zone assessment protocol; and (4) development of simplified models for prediction of plume response. The research approach integrates batch, column and aquifer cell experiments with mathematical modeling and data processing tools to identify and quantify features of the DNAPL architecture controlling down gradient plume response. SUBJECT TERMSField characterization; Metric identification; DNAPL; SECURITY CLASSIFICATION OF:No classified information

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Dissolution, cyclodextrin-enhanced solubilization, and mass removal of an ideal multicomponent organic liquid

Cited by 31 publications

References 44 publications

Effect of Enhanced-Solubilization Agents on Dissolution and Mass Flux from Uniformly Distributed Immiscible Liquid Trichloroethene (TCE) in Homogeneous Porous Media

Effect of Enhanced-Solubilization Agents on Dissolution and Mass Flux from Uniformly Distributed Immiscible Liquid Trichloroethene (TCE) in Homogeneous Porous Media

Characterizing long-term contaminant mass discharge and the relationship between reductions in discharge and reductions in mass for DNAPL source areas

Metric Identification and Protocol Development for Characterizing DNAPL Source Zone Architecture and Associated Plume Response

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