Spectral Induced Polarization Signatures of Hydroxide Adsorption and Mineral Precipitation in Porous Media

Zhang, Chi; Slater, Lee; Redden, George D; Fujita, Yoshiko; Johnson, Timothy C; Fox, Don

doi:10.1021/es204404e

Title: Spectral Induced Polarization Signatures of Hydroxide Adsorption and Mineral Precipitation in Porous Media

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Abstract

The spectral induced polarization (SIP) technique is a promising approach for delineating subsurface physical and chemical property changes in a minimally invasive manner. To facilitate the understanding of position and chemical properties of reaction fronts that involve mineral precipitation in porous media, we investigated spatiotemporal variations in complex conductivity during evolution of urea hydrolysis and calcite precipitation reaction fronts within a silica gel column. The real and imaginary parts of complex conductivity were shown to be sensitive to changes in both solution chemistry and calcium carbonate precipitation. Distinct changes in imaginary conductivity coincided with increased hydroxide ion concentration during urea hydrolysis. In a separate experiment focused on the effect of hydroxide concentration on interfacial polarization of silica gel and well-sorted sand, we found a significant dependence of the polarization response on pH changes of the solution. We propose a conceptual model describing hydroxide ion adsorption behavior in silica gel and its control on interfacial polarizability. Our results demonstrate the utility of SIP for noninvasive monitoring of reaction fronts, and indicate its potential for quantifying geochemical processes that control the polarization responses of porous media at larger spatial scales in the natural environment.

Authors:: Zhang, Chi; Slater, Lee; Redden, George D; Fujita, Yoshiko; Johnson, Timothy C; Fox, Don

Publication Date:: Tue Apr 17 00:00:00 EDT 2012

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1047412

Report Number(s):: PNNL-SA-89457
Journal ID: ISSN 0013-936X; ESTHAG; TRN: US201216%%271

DOE Contract Number:: AC05-76RL01830

Resource Type:: Journal Article

Journal Name:: Environmental Science and Technology

Additional Journal Information:: Journal Volume: 8; Journal Issue: 46; Journal ID: ISSN 0013-936X

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; ADSORPTION; BEHAVIOR; CALCITE; CALCIUM CARBONATES; CHEMICAL PROPERTIES; CHEMISTRY; CONTROL; ENVIRONMENT; HYDROLYSIS; HYDROXIDES; IONS; MINERALS; MONITORING; POLARIZABILITY; POLARIZATION; POTENTIALS; PRECIPITATION; SAND; SILICA GEL; SOLUTIONS; UREA; VARIATIONS

Citation Formats


                    Zhang, Chi, Slater, Lee, Redden, George D, Fujita, Yoshiko, Johnson, Timothy C, and Fox, Don. Spectral Induced Polarization Signatures of Hydroxide Adsorption and Mineral Precipitation in Porous Media.  United States: N. p., 2012. 
        Web.  doi:10.1021/es204404e.

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                    Zhang, Chi, Slater, Lee, Redden, George D, Fujita, Yoshiko, Johnson, Timothy C, & Fox, Don. Spectral Induced Polarization Signatures of Hydroxide Adsorption and Mineral Precipitation in Porous Media.  United States.  https://doi.org/10.1021/es204404e

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                    Zhang, Chi, Slater, Lee, Redden, George D, Fujita, Yoshiko, Johnson, Timothy C, and Fox, Don. 2012.  
        "Spectral Induced Polarization Signatures of Hydroxide Adsorption and Mineral Precipitation in Porous Media".  United States.  https://doi.org/10.1021/es204404e.

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@article{osti_1047412,

  title        = {Spectral Induced Polarization Signatures of Hydroxide Adsorption and Mineral Precipitation in Porous Media},

  author       = {Zhang, Chi and Slater, Lee and Redden, George D and Fujita, Yoshiko and Johnson, Timothy C and Fox, Don},

  abstractNote = {The spectral induced polarization (SIP) technique is a promising approach for delineating subsurface physical and chemical property changes in a minimally invasive manner. To facilitate the understanding of position and chemical properties of reaction fronts that involve mineral precipitation in porous media, we investigated spatiotemporal variations in complex conductivity during evolution of urea hydrolysis and calcite precipitation reaction fronts within a silica gel column. The real and imaginary parts of complex conductivity were shown to be sensitive to changes in both solution chemistry and calcium carbonate precipitation. Distinct changes in imaginary conductivity coincided with increased hydroxide ion concentration during urea hydrolysis. In a separate experiment focused on the effect of hydroxide concentration on interfacial polarization of silica gel and well-sorted sand, we found a significant dependence of the polarization response on pH changes of the solution. We propose a conceptual model describing hydroxide ion adsorption behavior in silica gel and its control on interfacial polarizability. Our results demonstrate the utility of SIP for noninvasive monitoring of reaction fronts, and indicate its potential for quantifying geochemical processes that control the polarization responses of porous media at larger spatial scales in the natural environment.},

  doi          = {10.1021/es204404e},

  url          = {https://www.osti.gov/biblio/1047412},
  journal      = {Environmental Science and Technology},

  issn         = {0013-936X},

  number       = 46,

  volume       = 8,

  place        = {United States},

  year         = {Tue Apr 17 00:00:00 EDT 2012},

  month        = {Tue Apr 17 00:00:00 EDT 2012}

}

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