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Title: Field Test of Enhanced Remedial Amendment Delivery Using a Shear-Thinning Fluid

Abstract

Heterogeneity of hydraulic properties in aquifers may lead to contaminants residing in lower-permeability zones where it is difficult to deliver remediation amendments using conventional injection processes. The focus of this effort is to examine use of a shear-thinning fluid (STF) to improve the uniformity of remedial amendment distribution within a heterogeneous aquifer. Previous studies have demonstrated the significant potential of STFs for improving remedial amendment delivery in heterogeneous aquifers, but quantitative evaluation of these improvements from field applications are lacking. A field-scale test was conducted that compares data from successive injection of a tracer in water followed by injection of a tracer in a STF to evaluate the impact of the STF on tracer distribution uniformity in the presence of permeability contrasts within the targeted injection zone. Data from tracer breakthrough at multiple depth-discrete monitoring intervals and electrical resistivity tomography showed that inclusion of STF in the injection solution slowed movement in high-permeability pathways, improved delivery of amendment to low-permeability materials, and resulted in better uniformity in injected fluid distribution within the targeted treatment zone.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1225151
Report Number(s):
PNNL-SA-101736
Journal ID: ISSN 1069-3629; 400403209
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Ground Water Monitoring and Remediation; Journal Volume: 35; Journal Issue: 3
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; bioremediation; groundwater

Citation Formats

Truex, Michael J., Vermeul, Vincent R., Adamson, David, Oostrom, Martinus, Zhong, Lirong, Mackley, Rob D., Fritz, Brad G., Horner, Jacob A., Johnson, Timothy C., Thomle, Jonathan N., Newcomer, Darrell R., Johnson, Christian D., Rysz, Michal, Wietsma, Thomas W., and Newell, Charles J. Field Test of Enhanced Remedial Amendment Delivery Using a Shear-Thinning Fluid. United States: N. p., 2015. Web.
Truex, Michael J., Vermeul, Vincent R., Adamson, David, Oostrom, Martinus, Zhong, Lirong, Mackley, Rob D., Fritz, Brad G., Horner, Jacob A., Johnson, Timothy C., Thomle, Jonathan N., Newcomer, Darrell R., Johnson, Christian D., Rysz, Michal, Wietsma, Thomas W., & Newell, Charles J. Field Test of Enhanced Remedial Amendment Delivery Using a Shear-Thinning Fluid. United States.
Truex, Michael J., Vermeul, Vincent R., Adamson, David, Oostrom, Martinus, Zhong, Lirong, Mackley, Rob D., Fritz, Brad G., Horner, Jacob A., Johnson, Timothy C., Thomle, Jonathan N., Newcomer, Darrell R., Johnson, Christian D., Rysz, Michal, Wietsma, Thomas W., and Newell, Charles J. Sun . "Field Test of Enhanced Remedial Amendment Delivery Using a Shear-Thinning Fluid". United States. doi:.
@article{osti_1225151,
title = {Field Test of Enhanced Remedial Amendment Delivery Using a Shear-Thinning Fluid},
author = {Truex, Michael J. and Vermeul, Vincent R. and Adamson, David and Oostrom, Martinus and Zhong, Lirong and Mackley, Rob D. and Fritz, Brad G. and Horner, Jacob A. and Johnson, Timothy C. and Thomle, Jonathan N. and Newcomer, Darrell R. and Johnson, Christian D. and Rysz, Michal and Wietsma, Thomas W. and Newell, Charles J.},
abstractNote = {Heterogeneity of hydraulic properties in aquifers may lead to contaminants residing in lower-permeability zones where it is difficult to deliver remediation amendments using conventional injection processes. The focus of this effort is to examine use of a shear-thinning fluid (STF) to improve the uniformity of remedial amendment distribution within a heterogeneous aquifer. Previous studies have demonstrated the significant potential of STFs for improving remedial amendment delivery in heterogeneous aquifers, but quantitative evaluation of these improvements from field applications are lacking. A field-scale test was conducted that compares data from successive injection of a tracer in water followed by injection of a tracer in a STF to evaluate the impact of the STF on tracer distribution uniformity in the presence of permeability contrasts within the targeted injection zone. Data from tracer breakthrough at multiple depth-discrete monitoring intervals and electrical resistivity tomography showed that inclusion of STF in the injection solution slowed movement in high-permeability pathways, improved delivery of amendment to low-permeability materials, and resulted in better uniformity in injected fluid distribution within the targeted treatment zone.},
doi = {},
journal = {Ground Water Monitoring and Remediation},
number = 3,
volume = 35,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 2015},
month = {Sun Mar 01 00:00:00 EST 2015}
}