Control of downward migration of dense nonaqueous phase liquid during surfactant flooding by design simulations

Jin, Minquan; Hirasaki, George J.; Jackson, Richard E.; Kostarelos, Konstantinos; Pope, Gary A.

doi:10.1029/2006wr004858

Cited by 11 publications

(13 citation statements)

References 25 publications

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“…where a value of 0° corresponds to purely horizontal DNAPL migration (formation of a vertical DNAPL bank) and a value of 90° indicates vertical purely (downward) DNAPL migration (formation of a horizontal DNAPL bank) (Jin et al 2007). For experiment AMA-1, the displacement angle was calculated to be 87º, consistent with the nearly vertical (downward) migration of TCE-DNAPL visible in Figure 39b.…”

Section: Iii313 Aerosol Ma Aquifer Cell Resultssupporting

confidence: 49%

“…10). A further increase in the applied flow rate may provide for additional TCE mass recovery, and limit downward migration of mobilized DNAPL (Jin et al 2007). Consideration of higher flow rates as a means of attaining greater mass recovery under a mobilization scenario should be accompanied by careful assessment of site-specific hydraulics .…”

Section: Iii313 Aerosol Ma Aquifer Cell Resultsmentioning

confidence: 99%

“…This value is more than one order-of-magnitude greater than the values obtained for the Tween 80 aquifer cell experiments, which is due primarily to the lower IFT of the Aerosol MA solution (i.e., 0.19 vs. 10.4 dyn/cm). For horizontal aqueous-phase flow, the angle of displacement for mobilized NAPL relative to the x-axis (τ) can be predicted from the ratio of the Bond and capillary numbers by: where a value of 0° corresponds to purely horizontal DNAPL migration (formation of a vertical DNAPL bank) and a value of 90° indicates vertical purely (downward) DNAPL migration (formation of a horizontal DNAPL bank) (Jin et al 2007). For experiment AMA-1, the displacement angle was calculated to be 87º, consistent with the nearly vertical (downward) migration of TCE-DNAPL visible in Figure 39b.…”

Section: Iii313 Aerosol Ma Aquifer Cell Resultsmentioning

confidence: 99%

“…In general, the solubilization capacity of a surfactant increases as the interfacial tension is reduced (Bourrel and Schechter 1988), yet this benefit is often offset by the risk of uncontrolled mobilization of DNAPL, which could enter lower permeability layers and migrate to greater depths in the subsurface, e.g., (Ramsburg and Pennell 2001). Employment of either a solubilization or mobilization recovery mechanism requires careful design of the hydraulic and treatment systems Jin et al 2007). An important aspect of the design of surfactant flushing treatments is the onset and extent of DNAPL mobilization, which can be described by the total trapping number (Pennell 1996): …”

Section: Iii31 Tce-dnapl Mass Recovery and Saturation Distributionmentioning

confidence: 99%

“…However, the ability of the trapping number approach to describe DNAPL displacement and subsequent free product migration has received only limited consideration in multi-dimensional, heterogeneous systems (Ramsburg and Pennell 2001;Conrad et al 2002;Jin et al 2007). …”

mentioning

confidence: 99%

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Development of Assessment Tools for Evaluation of the Benefits of DNAPL Source Zone Treatment

Abriola¹,

Goovaerts²,

Pennell³

et al. 2008

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Public reporting burden for the 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 the 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 Washington Headquarters Services, Directorate for Information Operations and Reports, 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 a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER REPORT DATE SEP 20082 PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Tufts University PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S) SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release, distribution unlimited SUPPLEMENTARY NOTESThe original document contains color images. Prescribed by This report was prepared under contract to the Department of Defense Strategic Environmental Research and Development Program (SERDP). The publication of this report does not indicate endorsement by the Department of Defense, nor should the contents be construed as reflecting the official policy or position of the Department of Defense. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the Department of Defense.iv Table of Our sincere thanks is extended to the members of the SERDP DNAPL Review Panel for their knowledge, insights and energy that helped keep us outcome focused and made this work stronger. We are also grateful to our Project Officers, for their invaluable assistance in financial management and most especially, helping us navigates the transfer of this contract to Tufts University. The SERDP staff has supported us in countless ways, always responding in a professional and cheerful manner. Our very special thanks are extended to Andrea Leeson and Jeff Marqusee, without whose vision and support this work would never have taken place. 1 Executive SummarySince its commencement in September 2002, SERDP Project ER-1293 has supported 4 doctoral students at three universities and resulted in over 40 conference proceedings/technical abstracts and over 20 peer-reviewed publications. These presentations and publications, as referenced in this final report, describe various aspects of the research investigations and tools that have been developed to enhance design and assessment of DNAPL source zone treatment. In general, research in ER-1293 has led to the devel...

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Section: Iii313 Aerosol Ma Aquifer Cell Resultssupporting

confidence: 49%

Section: Iii313 Aerosol Ma Aquifer Cell Resultsmentioning

confidence: 99%

Section: Iii313 Aerosol Ma Aquifer Cell Resultsmentioning

confidence: 99%

Section: Iii31 Tce-dnapl Mass Recovery and Saturation Distributionmentioning

confidence: 99%

mentioning

confidence: 99%

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Development of Assessment Tools for Evaluation of the Benefits of DNAPL Source Zone Treatment

Abriola¹,

Goovaerts²,

Pennell³

et al. 2008

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Organic contaminant transport and fate in the subsurface: Evolution of knowledge and understanding

Essaid

Bekins

Cozzarelli

2015

Water Resources Research

156

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Toxic organic contaminants may enter the subsurface as slightly soluble and volatile nonaqueous phase liquids (NAPLs) or as dissolved solutes resulting in contaminant plumes emanating from the source zone. A large body of research published in Water Resources Research has been devoted to characterizing and understanding processes controlling the transport and fate of these organic contaminants and the effectiveness of natural attenuation, bioremediation, and other remedial technologies. These contributions include studies of NAPL flow, entrapment, and interphase mass transfer that have advanced from the analysis of simple systems with uniform properties and equilibrium contaminant phase partitioning to complex systems with pore-scale and macroscale heterogeneity and rate-limited interphase mass transfer. Understanding of the fate of dissolved organic plumes has advanced from when biodegradation was thought to require oxygen to recognition of the importance of anaerobic biodegradation, multiple redox zones, microbial enzyme kinetics, and mixing of organic contaminants and electron acceptors at plume fringes. Challenges remain in understanding the impacts of physical, chemical, biological, and hydrogeological heterogeneity, pore-scale interactions, and mixing on the fate of organic contaminants. Further effort is needed to successfully incorporate these processes into field-scale predictions of transport and fate. Regulations have greatly reduced the frequency of new point-source contamination problems; however, remediation at many legacy plumes remains challenging. A number of fields of current relevance are benefiting from research advances from point-source contaminant research. These include geologic carbon sequestration, nonpoint-source contamination, aquifer storage and recovery, the fate of contaminants from oil and gas development, and enhanced bioremediation.

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Effect of Surfactants on Zero‐Valent Iron Nanoparticles (NZVI) Reactivity

Wang

Choi

Acosta

2017

J Surfact & Detergents

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Zero-valent iron nanoparticles (NZVI) were synthesized and dispersed in solutions of sodium oleate (SO), sodium laurate (SL), sodium dodecyl phosphonate (SDP), and sodium dodecyl sulfate (SDS). The reactivity of these dispersions was evaluated to assess the impact of surfactants on the reduction rate of hydrophilic reactive black 5 (RB5) and hydrophobic carbon tetrachloride (CT) model contaminants. SO and SL, used at their critical micelle concentration (CMC), lowered the reduction rate of RB5 by two and three orders of magnitude, respectively. SO and SL also decreased the reduction rate of CT by up to one order of magnitude. SDS and SDP, at their CMC, decreased the reduction rate of RB5 by approximately 50-fold, but increased the reduction rate of CT. The decrease in RB5 reduction rate might be explained by the formation of adsorbed surfactant species on the surface of NZVI that could hinder the transport of RB5 and other hydrophilic species. For SO and SL, the inhibition of RB5 and CT reduction might also be explained by the binding of carboxylates to NZVI. The increase in CT reduction rate with SDS and SDP suggests that providing a non-binding lipophilic environment on the surface of NZVI would improve the reduction rate and selectivity towards the reduction of hydrophobic contaminants.

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Control of downward migration of dense nonaqueous phase liquid during surfactant flooding by design simulations

Cited by 11 publications

References 25 publications

Development of Assessment Tools for Evaluation of the Benefits of DNAPL Source Zone Treatment

Development of Assessment Tools for Evaluation of the Benefits of DNAPL Source Zone Treatment

Organic contaminant transport and fate in the subsurface: Evolution of knowledge and understanding

Effect of Surfactants on Zero‐Valent Iron Nanoparticles (NZVI) Reactivity

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