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Applied Geology and Geochemistry

Jim Szecsody

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352

Biography

Dr. Szecsody has conducted research studies quantifying geochemical and microbial mechanisms that occur in porous media during advective transport at different scales. This includes laboratory research and model simulation at the batch scale to identify and parameterize reactions and processes, and 1-D flow experiments to address process coupling with advection, 2-D laboratory experiments (1 m to 7 m) to address the importance of spatial heterogeneities and field experiments to upscale engineered geochemical remediation methods. This research also involves development of transport codes that incorporate multispecies transport with multiple chemical equilibrium/kinetic and microbial reactions. Compounds investigated include energetics (RDX, TNT, HMX, CL-20, NDMA), chlorinated solvents (TCE, PCE, DCE, VC), and metals/radionuclides (Sr, U, Cs, Co, Tc, Cr). Current fundamental research involves the geochemical and microbial reactions of energetics in sediments and microbial attachment/detachment mechanisms. Current applied research is focused on upscaling geochemical or coupled geochemical/microbial redox technologies to aquifer systems at chromate and nitrate-contaminated sites.

Research Interests

  • Basic and applied geochemistry to develop and test remediation technologies (abiotic, biotic, coupled) for chlorinated solvents, energetics, and radionuclides.

Education and Credentials

  • Ph.D., Hydrology, minor Geochemistry/Soil Science, University of Arizona, 1988
  • M.S., University of Nevada, Hydrology/Hydrogeology, 1982
  • B.S., Arizona State University, Geology, 1979

Affiliations and Professional Service

  • Professional Geologist, Washington State
  • American Chemical Society

Awards and Recognitions

  • DOE Office of Science Undergraduate Research Programs Outstanding Mentor Award, 2011
  • R&D Magazine 100 Award, 1998, “In Situ Redox Manipulation”
  • U.S. Patent 6,348,501; Flow Through Electrode with Automated Calibration, Issued August 20, 2002.
  • U.S. Patent 6,706,527; Automated fluid analysis apparatus and techniques, Issued March 16, 2004.

PNNL Publications

2018

  • Beiswenger T.N., N.B. Gallagher, T.L. Myers, J.E. Szecsody, R.G. Tonkyn, Y. Su, and L.E. Sweet, et al. 2018. "Identification of Uranium Minerals in Natural U-Bearing Rocks Using Infrared Reflectance Spectroscopy." Applied Spectroscopy 72, no. 2:209-224. PNNL-SA-126896. doi:10.1177/0003702817743265
  • Demirkanli D.I., M.J. Truex, J.E. Szecsody, M. Snyder, J.J. Moran, M.K. Nims, and A.R. Lawter, et al. 2018. Contaminant Attenuation and Transport Characterization of 200-DV-1 Operable Unit Sediment Samples from Boreholes C9497, C9498, C9603, C9488, and C9513. PNNL-27524. Richland, WA: Pacific Northwest National Laboratory.
  • Katsenovich Y., C. Cardona, J.E. Szecsody, L. Lagos, and W. Tang. 2018. "Assessment of calcium addition on the removal of U(VI) in the alkaline conditions created by NH3 gas." Applied Geochemistry 92. PNNL-SA-139080. doi:10.1016/j.apgeochem.2018.03.003
  • Qafoku N., C.E. Bagwell, A.R. Lawter, M.J. Truex, J.E. Szecsody, O. Qafoku, and L. Kovarik, et al. 2018. Conceptual Model of Subsurface Processes for Iodine at the Hanford Site. PNNL-28053 Rev 1.0. Richland, WA: Pacific Northwest National Laboratory. Conceptual Model of Subsurface Processes for Iodine at the Hanford Site
  • Qafoku N., C.E. Bagwell, A.R. Lawter, M.J. Truex, J.E. Szecsody, O. Qafoku, and L. Kovarik, et al. 2018. Conceptual Model of Subsurface Processes for Iodine at the Hanford Site. PNNL-28053. Richland, WA: Pacific Northwest National Laboratory. Conceptual Model of Subsurface Processes for Iodine at the Hanford Site
  • Szecsody J.E., C.I. Pearce, K.J. Cantrell, N. Qafoku, G. Wang, E.C. Gillispie, and A.R. Lawter, et al. 2018. Evaluation of Remediation Technologies for Iodine-129: FY18 Bench Scale Results. PNNL-28064. Richland, WA: Pacific Northwest National Laboratory. Evaluation of Remediation Technologies for Iodine-129: FY18 Bench Scale Results
  • Szecsody J.E., M.J. Truex, B.D. Lee, C.E. Strickland, J.J. Moran, M. Snyder, and C.T. Resch, et al. 2018. Geochemical, Microbial, and Physical Characterization of 200-DV-1 Operable Unit B-Complex Cores from Boreholes C9552, C9487, and C9488 on the Hanford Site Central Plateau. PNNL-26266 Rev 1. Richland, WA: Pacific Northwest National Laboratory. Geochemical, Microbial, and Physical Characterization of 200-DV-1 Operable Unit B-Complex Cores from Boreholes C9552, C9487, and C9488 on the Hanford Site Central Plateau
  • Truex M.J., J.E. Szecsody, C.E. Strickland, D.A. St John, M. Snyder, C.T. Resch, and M.D. Miller, et al. 2018. Deep Vadose Zone Treatability Test of Uranium Reactive Gas Sequestration for the Hanford Central Plateau: Final Report. PNNL-27773. Richland, WA: Pacific Northwest National Laboratory. Deep Vadose Zone Treatability Test of Uranium Reactive Gas Sequestration for the Hanford Central Plateau: Final Report

2017

2016

  • Beiswenger T.N., T.L. Myers, C.S. Brauer, Y. Su, T.A. Blake, A.B. Ertel, and R.G. Tonkyn, et al. 2016. "Experimental Effects on IR Reflectance Spectra: Particle Size and Morphology." In Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXII, April 17, 2016, Baltimore, Maryland. Proceedings of the SPIE, edited by M Velez-Reyes and DW Messinger, 9840, Paper No. 98400I. Bellingham, Washington:SPIE. PNNL-SA-117157. doi:10.1117/12.2223909
  • Katsenovich Y., C. Cardona, R.M. Lapierre, J.E. Szecsody, and L. Lagos. 2016. "The effect of Si and Al concentrations on the removal of U(VI) in the alkaline conditions created by NH3 gas." Applied Geochemistry 73. PNNL-SA-122632. doi:10.1016/j.apgeochem.2016.08.002
  • Szecsody J.E., R.C. Moore, M.J. Rigali, V.R. Vermeul, and J. Luellen. 2016. Use of a Ca-Citrate-Phosphate Solution to Form Hydroxyapatite for Uranium Stabilization of Rifle Sediments: Laboratory Proof of Principle Studies. PNNL-25303. Richland, WA: Pacific Northwest National Laboratory. Use of a Ca-Citrate-Phosphate Solution to Form Hydroxyapatite for Uranium Stabilization of Rifle Sediments: Laboratory Proof of Principle Studies

2015

  • Gartman B.N., N. Qafoku, J.E. Szecsody, R.K. Kukkadapu, Z. Wang, D.M. Wellman, and M.J. Truex. 2015. "Uranium Fate in Hanford Sediment Altered by Simulated Acid Waste Solutions." Applied Geochemistry 63, no. December 2015:1-9. PNNL-SA-105743. doi:10.1016/j.apgeochem.2015.07.010
  • Szecsody J.E., M.J. Truex, L. Zhong, J.P. McKinley, N. Qafoku, B.D. Lee, and S.D. Saurey. 2015. "Remediation of Technetium in Vadose Zone Sediments Using Ammonia and Hydrogen Sulfide Gases." Vadose Zone Journal 14, no. 7. PNNL-SA-107578. doi:10.2136/vzj2014.09.0134
  • Truex M.J., J.E. Szecsody, N. Qafoku, R. Sahajpal, L. Zhong, A.R. Lawter, and B.D. Lee. 2015. Assessment of Hexavalent Chromium Natural Attenuation for the Hanford Site 100 Area. PNNL-24705. Richland, WA: Pacific Northwest National Laboratory. Assessment of Hexavalent Chromium Natural Attenuation for the Hanford Site 100 Area
  • Zhong L., J.E. Szecsody, M.J. Truex, M.D. Williams, and Y. Liu. 2015. "Ammonia Gas Transport and Reactions in Unsaturated Sediments: Implications for Use as an Amendment to Immobilize Inorganic Contaminants." Journal of Hazardous Materials 289. PNNL-SA-106198. doi:10.1016/j.jhazmat.2015.02.025

2014

  • Amonette J.E., T.A. Johnson, C.F. Spencer, L. Zhong, J.E. Szecsody, and V.R. Vermeul. 2014. "Geochemical Monitoring Considerations for the FutureGen 2.0 Project." Energy Procedia 63. PNWD-SA-10397. doi:10.1016/j.egypro.2014.11.441
  • Su Y., T.L. Myers, C.S. Brauer, T.A. Blake, B.M. Forland, J.E. Szecsody, and T.J. Johnson. 2014. "Infrared reflectance spectra: Effects of particle size, provenance and preparation." In Optics and Photonics for Counterterrorism, Crime Fighting, and Defence X; and Optical Materials and Biomaterials in Security and Defence Systems Technology XI, 9253, Art. No. 925304. Amsterdam:Douglas Burgess, Roberto Zamboni, et al. PNNL-SA-106258. doi:10.1117/12.2069954
  • Szecsody J.E., D.P. Jansik, J.P. McKinley, and N.J. Hess. 2014. "Influence of Alkaline Co-Contaminants on Technetium Mobility in Vadose Zone Sediments." Journal of Environmental Radioactivity 135. PNNL-SA-101007. doi:10.1016/j.jenvrad.2014.02.003
  • Szecsody J.E., L. Zhong, J.N. Thomle, V.R. Vermeul, C.E. Strickland, M.D. Williams, and J. Liu, et al. 2014. "Influence of scCO2 Injection on Precipitation and Metals Migration, and Changes in Electrical Resistivity." Energy Procedia 63. PNWD-SA-10402. doi:10.1016/j.egypro.2014.11.356
  • Szecsody J.E., S. Comfort, H.L. Fredrickson, R.G. Riley, F.H. Crocker, P. Shea, and J.P. McKinley, et al. 2014. "In Situ Degradation and Remediation of Energetics TNT, RDX, HMX, and CL-20 and a Byproduct NDMA in the Sub-surface Environment." In Biological Remediation of Explosive Residues. Environmental Science and Engineering, edited by SN Singh. 313-369. New York, New York:Springer. PNNL-SA-95637.
  • Szecsody J.E., V.R. Vermeul, M.D. Williams, and M.J. Truex. 2014. Hanford Apatite Treatability Test Report Errata: Apatite Mass Loading Calculation. PNNL-23367. Richland, WA: Pacific Northwest National Laboratory. Hanford Apatite Treatability Test Report Errata: Apatite Mass Loading Calculation
  • Truex M.J., J.E. Szecsody, L. Zhong, and N. Qafoku. 2014. Gas-Phase Treatment of Technetium in the Vadose Zone at the Hanford Site Central Plateau. PNNL-23665; RPT-DVZ-AFRI-023. Richland, WA: Pacific Northwest National Laboratory. Gas-Phase Treatment of Technetium in the Vadose Zone at the Hanford Site Central Plateau
  • Truex M.J., J.E. Szecsody, L. Zhong, J.N. Thomle, and T.C. Johnson. 2014. Scale-Up Information for Gas-Phase Ammonia Treatment of Uranium in the Vadose Zone at the Hanford Site Central Plateau. PNNL-23699. Richland, WA: Pacific Northwest National Laboratory. Scale-Up Information for Gas-Phase Ammonia Treatment of Uranium in the Vadose Zone at the Hanford Site Central Plateau
  • Truex M.J., J.E. Szecsody, N. Qafoku, and R.J. Serne. 2014. Conceptual Model of Uranium in the Vadose Zone for Acidic and Alkaline Wastes Discharged at the Hanford Site Central Plateau. PNNL-23666; RPT-DVZ-AFRI-024. Richland, WA: Pacific Northwest National Laboratory. Conceptual Model of Uranium in the Vadose Zone for Acidic and Alkaline Wastes Discharged at the Hanford Site Central Plateau
  • Vermeul V.R., C.E. Strickland, P.D. Thorne, B.N. Bjornstad, R.D. Mackley, M.E. Kelley, and E.C. Sullivan, et al. 2014. "FutureGen 2.0 Monitoring Program: An Overview of the Monitoring Approach and Technologies Selected for Implementation." Energy Procedia 63. PNWD-SA-10395. doi:10.1016/j.egypro.2014.11.438
  • Vermeul V.R., J.E. Szecsody, B.G. Fritz, M.D. Williams, R.C. Moore, and J.S. Fruchter. 2014. "An Injectable Apatite Permeable Reactive Barrier for In Situ 90Sr Immobilization." Ground Water Monitoring and Remediation 34, no. 2:28-41. PNNL-SA-96257.
  • Williams M.D., V.R. Vermeul, M. Oostrom, S.L. Porse, P.D. Thorne, J.E. Szecsody, and J.A. Horner, et al. 2014. "Design Support of an above Cap-rock Early Detection Monitoring System using Simulated Leakage Scenarios at the FutureGen2.0 Site." Energy Procedia 63. PNWD-SA-10398. doi:10.1016/j.egypro.2014.11.439

2013

  • Sweet L.E., D.D. Reilly, D.G. Abrecht, E.C. Buck, D.E. Meier, Y. Su, and C.S. Brauer, et al. 2013. "Spectroscopic Studies of the Several Isomers of UO3." In Optics and Photonics for Counterterrorism, Crime Fighting and Defence IX; and Optical Materials and Biomaterials in Security and Defence Systems Technology X, September 23, 2013, Dresden, Germany. Proceedings of the SPIE, edited by R Zamboni, et al, 8901, Paper No. 890107. Bellingham, Washington:SPIE. PNNL-SA-98300. doi:10.1117/12.2029408
  • Szecsody J.E., M.J. Truex, N. Qafoku, D.M. Wellman, C.T. Resch, and L. Zhong. 2013. "Influence of Acidic and Alkaline Waste Solution Properties on Uranium Migration in Subsurface Sediments." Journal of Contaminant Hydrology 151. PNNL-SA-96107. doi:10.1016/j.jconhyd.2013.05.009
  • Zhong L., M. Oostrom, M.J. Truex, V.R. Vermeul, and J.E. Szecsody. 2013. "Rheological Behavior of Xanthan Gum Solution Related to Shear Thinning Fluid Delivery for Subsurface Remediation." Journal of Hazardous Materials 244-245. PNNL-SA-87185. doi:10.1016/j.jhazmat.2012.11.028

2012

  • Szecsody J.E., L. Zhong, M. Oostrom, V.R. Vermeul, J.S. Fruchter, and M.D. Williams. 2012. Use of Polyphosphate to Decrease Uranium Leaching in Hanford 300 Area Smear Zone Sediments. PNNL-21733;RPT-DVZ-AFRI-003. Richland, WA: Pacific Northwest National Laboratory. Use of Polyphosphate to Decrease Uranium Leaching in Hanford 300 Area Smear Zone Sediments
  • Szecsody J.E., M.J. Truex, L. Zhong, T.C. Johnson, N. Qafoku, M.D. Williams, and W.J. Greenwood, et al. 2012. "Geochemical and Geophysical Changes during Ammonia Gas Treatment of Vadose Zone Sediments for Uranium Remediation." Vadose Zone Journal 11, no. 4. PNNL-SA-86840. doi:10.2136/vzj2011.0158
  • Zhang Z.F., L. Zhong, M.D. White, and J.E. Szecsody. 2012. "Experimental Investigation of the Effective Foam Viscosity in Unsaturated Porous Media." Vadose Zone Journal 11, no. 4. PNNL-SA-87925. doi:10.2136/vzj2011.0190

2011

  • Fritz B.G., V.R. Vermeul, J.S. Fruchter, J.E. Szecsody, and M.D. Williams. 2011. 100-NR-2 Apatite Treatability Test: An update on Barrier Performance. PNNL-20252. Richland, WA: Pacific Northwest National Laboratory. 100-NR-2 Apatite Treatability Test: An update on Barrier Performance
  • Smith S.C., and J.E. Szecsody. 2011. "Influence of Contact Time on the Extraction of 233Uranyl Spike and Contaminant Uranium From Hanford Sediment." Radiochimica Acta 99, no. 11:693-704. PNNL-SA-62814. doi:10.1524/ract.2011.1876
  • Vermeul V.R., B.G. Fritz, J.S. Fruchter, W.J. Greenwood, T.C. Johnson, J.A. Horner, and C.E. Strickland, et al. 2011. 100-NR-2 Apatite Treatability Test: Fall 2010 Tracer Infiltration Test (White Paper). PNNL-20322. Richland, WA: Pacific Northwest National Laboratory. 100-NR-2 Apatite Treatability Test: Fall 2010 Tracer Infiltration Test (White Paper)
  • Zhong L., J.E. Szecsody, M. Oostrom, M.J. Truex, X. Shen, and X. Li. 2011. "Enhanced Remedial Amendment Delivery to Subsurface Using Shear Thinning Fluid and Aqueous Foam." Journal of Hazardous Materials 191, no. 1-3:249-257. PNNL-SA-77161. doi:10.1016/j.jhazmat.2011.04.074

2010

  • Boparai H.K., S. Comfort, T. Satapanajaru, J.E. Szecsody, P. Grossl, and P. Shea. 2010. "Abiotic transformation of high explosives by freshly precipitated iron minerals in aqueous Fe11 solutions." Chemosphere 79, no. 8:865-872. PNNL-SA-74240. doi:10.1016/j.chemosphere.2010.02.037
  • Riley R.G., J.E. Szecsody, D.S. Sklarew, A.V. Mitroshkov, P.M. Gent, C.F. Brown, and C.J. Thompson. 2010. "Desorption Behavior of Carbon Tetrachloride and Chloroform in contaminated Low Organic Carbon Aquifer Sediments." Chemosphere 79, no. 8:807-813. PNNL-SA-47350.
  • Szecsody J.E., J.S. Fruchter, V.R. Vermeul, M.D. Williams, B.G. Fritz, D.P. Mendoza, and J.P. McKinley. 2010. "Infiltration and Injection of a Ca-Citrate-PO4 Solution to Form Apatite In Situ for Sr-90 Remediation at the Hanford 100N Area - An Update." In 36th Annual Radioactive Waste Management Symposia, WM 2010, March 7-11, Phoenix, AZ, 4, 3441-3452. Tucson, Arizona:Waste Management Symposia, Inc. PNNL-SA-69768.
  • Szecsody J.E., L. Zhong, M.J. Truex, C.T. Resch, and M.D. Williams. 2010. "Use of Gas Transported Reactants for Uranium Remediation in Vadose Zone Sediments." In 36th Annual Radioactive Waste Management Symposia, WM 2010, March 7-11, Phoenix, AZ, 4, 3418-3430. Tucson, Arizona:Waste Management Symposia, Inc. PNNL-SA-69758.
  • Szecsody J.E., M.J. Truex, L. Zhong, M.D. Williams, C.T. Resch, and J.P. McKinley. 2010. Remediation of Uranium in the Hanford Vadose Zone Using Gas-Transported Reactants: Laboratory Scale Experiments in Support of the Deep Vadose Zone Treatability Test Plan for the Hanford Central Plateau. PNNL-18879. Richland, WA: Pacific Northwest National Laboratory. Remediation of Uranium in the Hanford Vadose Zone Using Gas-Transported Reactants: Laboratory Scale Experiments in Support of the Deep Vadose Zone Treatability Test Plan for the Hanford Central Plateau
  • Szecsody J.E., M.J. Truex, L. Zhong, N. Qafoku, M.D. Williams, J.P. McKinley, and Z. Wang, et al. 2010. Remediation of Uranium in the Hanford Vadose Zone Using Ammonia Gas: FY 2010 Laboratory-Scale Experiments. PNNL-20004. Richland, WA: Pacific Northwest National Laboratory. Remediation of Uranium in the Hanford Vadose Zone Using Ammonia Gas: FY 2010 Laboratory-Scale Experiments
  • Szecsody J.E., V.R. Vermeul, J.S. Fruchter, M.D. Williams, M.L. Rockhold, N. Qafoku, and J.L. Phillips. 2010. Hanford 100-N Area In Situ Apatite and Phosphate Emplacement by Groundwater and Jet Injection: Geochemical and Physical Core Analysis. PNNL-19524. Richland, WA: Pacific Northwest National Laboratory. Hanford 100-N Area In Situ Apatite and Phosphate Emplacement by Groundwater and Jet Injection: Geochemical and Physical Core Analysis
  • Vermeul V.R., B.G. Fritz, J.S. Fruchter, J.E. Szecsody, and M.D. Williams. 2010. 100-NR-2 Apatite Treatability Test: High-Concentration Calcium-Citrate-Phosphate Solution Injection for In Situ Strontium-90 Immobilization. PNNL-19572. Richland, WA: Pacific Northwest National Laboratory. 100-NR-2 Apatite Treatability Test: High-Concentration Calcium-Citrate-Phosphate Solution Injection for In Situ Strontium-90 Immobilization
  • Zhong L., J.E. Szecsody, Z.F. Zhang, and S.V. Mattigod. 2010. "Foam Delivery of Amendments for Vadose Zone Remediation - Propagation Performance in Unsaturated Sediments." Vadose Zone Journal 9, no. 3:757-767. PNNL-SA-70394.

2009

2008

  • Boparai H.K., S. Comfort, P.J. Shea, and J.E. Szecsody. 2008. "Remediating explosive-contaminated groundwater by in situ redox manipulation (ISRM) of aquifer sediments." Chemosphere 71, no. 5:933-941. PNNL-SA-60290.
  • Szecsody J.E., J.P. McKinley, A.T. Breshears, and F.H. Crocker. 2008. "Abiotic/Biotic Degradation and Mineralization of N-Nitrosodimethylamine in Aquifer Sediments." Remediation 19, no. 1:109-123. PNNL-SA-62897. doi:10.1002/rem.20195
  • Szecsody J.E., J.S. Fruchter, C.A. Burns, M.L. Rockhold, M. Oostrom, M.D. Williams, and V.R. Vermeul. 2008. "Sr-90 Immobilization by Infiltration of a Ca-Citrate-PO4 Solution into the Hanford 100-N Area Vadose Zone." In Waste Management 2008: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes & Environmental Management, Art. # 8141. Tucson, Arizona:Arizona Board of Regents. PNNL-SA-58607.
  • Thompson K.M., R.J. Fabre, V.R. Vermeul, J.E. Szecsody, R.J. Fellows, M.D. Williams, and J.S. Fruchter. 2008. "An Innovative Approach for Constructing an In-Situ Barrier for Strontium-90 at the Hanford Site, Washington - 9325." In Waste Management '09: Waste Management for the Nuclear Renaissance, Paper No. 9325. Tucson, Arizona:WM Symposia, Inc. PNNL-SA-63765.
  • Williams M.D., B.G. Fritz, D.P. Mendoza, M.L. Rockhold, P.D. Thorne, Y. Xie, and B.N. Bjornstad, et al. 2008. Interim Report: 100-NR-2 Apatite Treatability Test: Low Concentration Calcium Citrate-Phosphate Solution Injection for In Situ Strontium-90 Immobilization. PNNL-17429. Richland, WA: Pacific Northwest National Laboratory. Interim Report: 100-NR-2 Apatite Treatability Test: Low Concentration Calcium Citrate-Phosphate Solution Injection for In Situ Strontium-90 Immobilization

2007

  • Campbell J.A., J.E. Szecsody, B.J. Devary, and B.R. Valenzuela. 2007. "Electrospray Ionization Mass Spectrometry of hexanitrohexaazaisowurtzitane (CL-20)." Analytical Letters 40, no. 10:1972-1978. PNNL-SA-54498. doi:10.1080/00032710701484459
  • Szecsody J.E., C.A. Burns, R.C. Moore, J.S. Fruchter, V.R. Vermeul, M.D. Williams, and D.C. Girvin, et al. 2007. Hanford 100N Area Apatite Emplacement: Laboratory Results of Ca-Citrate-PO4 Solution Injection and Sr-90 Immobilization in 100N Sediments. PNNL-16891. Richland, WA: Pacific Northwest National Laboratory. Hanford 100N Area Apatite Emplacement: Laboratory Results of Ca-Citrate-PO4 Solution Injection and Sr-90 Immobilization in 100N Sediments
  • Szecsody J.E., S. Comfort, H.L. Fredrickson, H.K. Boparai, B.J. Devary, K.T. Thompson, and J.L. Phillips, et al. 2007. SERDP ER-1376 Enhancement of In Situ Bioremediation of Energetic Compounds by Coupled Abiotic/Biotic Processes:Final Report for 2004 - 2006. PNNL-16754. Richland, WA: Pacific Northwest National Laboratory. SERDP ER-1376 Enhancement of In Situ Bioremediation of Energetic Compounds by Coupled Abiotic/Biotic Processes:Final Report for 2004 - 2006
  • Thompson K.M., S.W. Petersen, J.S. Fruchter, C.C. Ainsworth, V.R. Vermeul, D.M. Wellman, and J.E. Szecsody, et al. 2007. "Supplemental Groundwater Remediation Technologies to Protect the Columbia River at Hanford, WA." In Waste management symposium 2007 : Global Accomplishments in Environmental and Radioactive Waste Management - Education and Opportunity for the Next Generation of Waste Management Professionals : February 25 March 1, 2007, Tucson, Arizona. Tucson, Arizona:Waste Management Symposia. PNNL-SA-53193.

2006

2005

  • Crocker F.H., K.T. Thompson, J.E. Szecsody, and H.L. Fredrickson. 2005. "Biotic and Abiotic Degradation of CL-20 and RDX in Soils." Journal of Environmental Quality 34, no. 6:2208-2216. PNNL-SA-48016. doi:10.2134/jeq2005.0032
  • Liu C., J.M. Zachara, L. Zhong, R.K. Kukkadapu, J.E. Szecsody, and D.W. Kennedy. 2005. "Influence of Sediment Bioreduction and Reoxidation on Uranium Sorption." Environmental Science & Technology 39, no. 11:4125-4133. PNNL-SA-42725.
  • Qasim M.M., H.L. Fredrickson, P. Honea, J. Furey, J. Leszczynski, S. Okovytyy, and J.E. Szecsody, et al. 2005. "Prediction of CL-20 chemical degradation pathways, theoretical and experimental evidence for dependence on competing modes of reaction." SAR and QSAR in Environmental Research 16, no. 5:495-515. PNNL-SA-48347.
  • Riley R.G., D.S. Sklarew, C.F. Brown, P.M. Gent, J.E. Szecsody, A.V. Mitroshkov, and C.J. Thompson. 2005. Carbon Tetrachloride and Chloroform Partition Coefficients Derived from Aqueous Desorption of Contaminated Hanford Sediments. PNNL-15239. Richland, WA: Pacific Northwest National Laboratory. Carbon Tetrachloride and Chloroform Partition Coefficients Derived from Aqueous Desorption of Contaminated Hanford Sediments
  • Szecsody J.E., J.L. Phillips, V.R. Vermeul, J.S. Fruchter, and M.D. Williams. 2005. Influence of Nitrate on the Hanford 100D Area In Situ Redox Manipulation Barrier Longevity. PNNL-15262. Richland, WA: Pacific Northwest National Laboratory. Influence of Nitrate on the Hanford 100D Area In Situ Redox Manipulation Barrier Longevity
  • Szecsody J.E., J.S. Fruchter, J.L. Phillips, M.L. Rockhold, V.R. Vermeul, M.D. Williams, and B.J. Devary, et al. 2005. Effect of Geochemical and Physical Heterogeneity on the Hanford 100D Area In Situ Redox Manipulation Barrier Longevity. PNNL-15499 Rev. 1. Richland, WA: Pacific Northwest National Laboratory. Effect of Geochemical and Physical Heterogeneity on the Hanford 100D Area In Situ Redox Manipulation Barrier Longevity
  • Szecsody J.E., J.S. Fruchter, V.R. Vermeul, M.D. Williams, and B.J. Devary. 2005. "In Situ Reduction of Aquifer Sediments to Create a Permeable Reactive Barrier to Remediate Chromate (CrO4 2-): BenchScale Tests to Determine Barrier Longevity." In Chromium(VI) Handbook. Boca Raton Fl:CRC Press. PNNL-SA-41928.
  • Szecsody J.E., R.G. Riley, B.J. Devary, D.C. Girvin, C.T. Resch, J.A. Campbell, and H.L. Fredrickson, et al. 2005. Factors Effecting the Fate and Transport of CL-20 in the Vadose Zone and Groundwater: Final Report 2002 - 2004 SERDP Project CP-1255. PNNL-15245. Richland, WA: Pacific Northwest National Laboratory. Factors Effecting the Fate and Transport of CL-20 in the Vadose Zone and Groundwater: Final Report 2002 - 2004 SERDP Project CP-1255
  • Szecsody J.E., V.R. Vermeul, J.S. Fruchter, M.D. Williams, J.L. Phillips, B.J. Devary, and M.L. Rockhold, et al. 2005. Effect of Geochemical and Physical Heterogeneity on the Hanford 100D Area In Situ Redox Manipulation Barrier Longevity. PNNL-15499. Richland, WA: Pacific Northwest National Laboratory. Effect of Geochemical and Physical Heterogeneity on the Hanford 100D Area In Situ Redox Manipulation Barrier Longevity
  • Zhong L., C. Liu, J.M. Zachara, D.W. Kennedy, J.E. Szecsody, and B.D. Wood. 2005. "Oxidative Remobilization of Biogenic Uranium (IV) Precipitates: Effects of Iron (II) and pH." Journal of Environmental Quality 34, no. 5:1763-1771. PNNL-SA-42839.

2004

  • Fayer M.J., and J.E. Szecsody. 2004. Recharge Data Package for the 2005 Integrated Disposal Facility Performance Assessment. PNNL-14744. Richland, WA: Pacific Northwest National Laboratory. Recharge Data Package for the 2005 Integrated Disposal Facility Performance Assessment
  • Fruchter J.S., V.R. Vermeul, M.D. Williams, and J.E. Szecsody. 2004. "In Situ Redox Manipulation for Treatment of Chromium-Contaminated Groundwater." In Remediation of Chlorinated and Recalcitrant Compounds: The Fourth International Conference Proceedings, 4C-12. Columbus, Ohio:Battelle Memorial Institute. PNNL-SA-41152.
  • Qafoku N., C.C. Ainsworth, J.E. Szecsody, and O. Qafoku. 2004. "Transport-controlled kinetics of dissolution and precipitation in the sediments under alkaline and saline conditions." Geochimica et Cosmochimica Acta 68, no. 14:2981-2995. PNNL-SA-38913.
  • Qasim M.M., J. Furey, H.L. Fredrickson, J.E. Szecsody, C.J. Mcgrath, and R. Bajpai. 2004. "Semiempirical Predictions of Chemical Degradation Reaction Mechanisms of CL-20 as Related to Molecular Structure." Structural Chemistry 15, no. 5:493-499. PNNL-SA-41926.
  • Szecsody J.E., D.C. Girvin, and M.M. Qasim. 2004. "CL-20 Reactivity in the Subsurface Environment and Potential for Migration." In Joint Army Navy NASA Air Force (JANNAF) 21st Safety and Environmental Protection Subcommittee (SEPS) & 32nd Propellant Subcommittee Joint Meeting, July 27, 2004, Seattle, WA. Washington, Dc:JANNAF. PNNL-SA-42127.
  • Szecsody J.E., D.C. Girvin, B.J. Devary, and J.A. Campbell. 2004. "Sorption and Oxic Degradation of the Explosive CL-20 During Transport in Subsurface Sediments." Chemosphere 56, no. 6:593-610. PNNL-SA-39252.
  • Szecsody J.E., J.S. Fruchter, M.D. Williams, V.R. Vermeul, and D.S. Sklarew. 2004. "In Situ Chemical Reduction of Aquifer Sediments: Enhancement of Reactive Iron Phases and TCE Dechlorination." Environmental Science & Technology 38, no. 17:4656-4663. PNNL-SA-39253.
  • Zachara J.M., C.C. Ainsworth, G.E. Brown, J.G. Catalano, J.P. McKinley, O. Qafoku, and S.C. Smith, et al. 2004. "Chromium Speciation and Mobility in a High Level Nuclear Waste Vadose Zone Plume." Geochimica et Cosmochimica Acta 68, no. 1:13-30. PNNL-SA-36806.

2003

  • Qafoku N., C.C. Ainsworth, J.E. Szecsody, and O. Qafoku. 2003. "Aluminum Effect on Dissolution and Precipitation under Hyperalkaline Conditions: I. Liquid Phase Transformations." Journal of Environmental Quality 32, no. 6:2354-2369. PNNL-SA-36190.
  • Qafoku N., C.C. Ainsworth, J.E. Szecsody, D.L. Bish, J.S. Young, D.E. McCready, and O. Qafoku. 2003. "Aluminum Effect on Dissolution and Precipitation under Hyperalkaline Conditions: II. solid Phase Transformations." Journal of Environmental Quality 32, no. 6:2364-2372. PNNL-SA-36191.
  • Qafoku N., C.C. Ainsworth, J.E. Szecsody, O. Qafoku, and S.M. Heald. 2003. "Effect of Coupled Dissolution and Redox Reactions on Cr(VI)(aq) Attenuation during Transport in the Sediments under Hyperalkaline Conditions." Environmental Science & Technology 37, no. 16:3640-3646. PNNL-SA-36318.

2002

  • Vermeul V.R., M.D. Williams, J.E. Szecsody, J.S. Fruchter, C.R. Cole, and J.E. Amonette. 2002. "Creation of a Subsurface Permeable Reactive Barrier Using In Situ Redox Manipulation." In Handbook of Groundwater Remediation using Permeable Reactive Barriers: Applications to Radionuclides, Trace Metals, and Nutrients, edited by David L. Naftz, et al. 163-192. San Diego, California:Academic Press. PNNL-SA-35122.

2001

  • Liu C., J.M. Zachara, Y.A. Gorby, J.E. Szecsody, and C.F. Brown. 2001. "Microbial Reduction of Fe(III) and Sorption/Precipitation of Fe(II) on Shewanella putrefaciens Strain CN32." Environmental Science & Technology 35, no. 7:1385-1393. PNNL-SA-32595.
  • Szecsody J.E., J.S. Fruchter, M.A. Mckinley, C.T. Resch, and T.J. Gilmore. 2001. Feasibility of In Situ Redox Manipulation of Subsurface Sediments for RDX Remediation at Pantex. PNNL-13746. Richland, WA: Pacific Northwest National Laboratory. Feasibility of In Situ Redox Manipulation of Subsurface Sediments for RDX Remediation at Pantex

2000

  • Chilakapati A., M.D. Williams, S.B. Yabusaki, C.R. Cole, and J.E. Szecsody. 2000. "Optimal design of an in situ Fe(II) barrier: Transport limited reoxidation." Environmental Science & Technology 34, no. 24:5215-5221. PNNL-SA-31710.
  • Chilakapati A., S.B. Yabusaki, J.E. Szecsody, and W.D. Macevoy. 2000. "Groundwater flow, multicomponent transport and biogeochemistry: development and application of a coupled process model." Journal of Contaminant Hydrology 43, no. 3-4:303-325. PNNL-SA-31712.
  • Fruchter J.S., C.R. Cole, M.D. Williams, V.R. Vermeul, J.E. Amonette, J.E. Szecsody, and J.D. Istok, et al. 2000. "Creation of a Subsurface Permeable Treatment Zone for Aqueous Chromate Contaminatioin Using In Situ Redox Manipulation." Ground Water Monitoring and Remediation 20, no. 2:66-77. PNNL-SA-32701.
  • Liu C., J.E. Szecsody, J.M. Zachara, and W.P. Ball. 2000. "Use of the Generalized Integral Transform Method for Solving Equations of Solute Transport in Porous Media." Advances in Water Resources 23, no. 5:483-492. PNNL-SA-32529.
  • Szecsody J.E., J.S. Fruchter, D.S. Sklarew, and J.C. Evans. 2000. In Situ Redox Manipulation of Subsurface Sediments from Fort Lewis, Washington: Iron Reduction and TCE Dechlorination Mechanisms. PNNL-13178. Richland, WA: Pacific Northwest National Laboratory. In Situ Redox Manipulation of Subsurface Sediments from Fort Lewis, Washington: Iron Reduction and TCE Dechlorination Mechanisms
  • Szecsody J.E., M.D. Williams, J.S. Fruchter, V.R. Vermeul, J.C. Evans, and D.S. Sklarew. 2000. "Influence of sediment reduction on TCE degradation." In Chemical Oxidation and Reactive Barriers; Remediation of Chlorinated and Racalcitrant Compounds, edited by GD Wickramanayake, AR Gavaskar & ASC Chen, 369-376. Columbus, Ohio:Battelle Press. PNNL-SA-31692.
  • Vermeul V.R., M.D. Williams, J.C. Evans, J.E. Szecsody, B.N. Bjornstad, and T.L. Liikala. 2000. In Situ Redox Manipulation Proof-of-Principle Test at the Fort Lewis Logistics Center: Final Report. PNNL-13357. Richland, WA: Pacific Northwest National Laboratory. In Situ Redox Manipulation Proof-of-Principle Test at the Fort Lewis Logistics Center: Final Report
  • Williams M.D., V.R. Vermeul, J.E. Szecsody, and J.S. Fruchter. 2000. 100-D Area In Situ Redox Treatability Test for Chromate-Contaminated Groundwater. PNNL-13349. Richland, WA: Pacific Northwest National Laboratory. 100-D Area In Situ Redox Treatability Test for Chromate-Contaminated Groundwater

1999

1998

  • Chilakapati A., T.R. Ginn, and J.E. Szecsody. 1998. "An Analysis of Complex Reaction Networks in Groundwater Modeling." Water Resources Research 34, no. 7:1767-1780. PNNL-SA-31798. doi:10.1029/98WR01041
  • Szecsody J.E., A. Chilakapati, J.M. Zachara, and A.L. Garvin. 1998. "Influence of Iron Oxide Inclusion Shape on Co(II/III)EDTA Reactive Transport Through Spatially Heterogeneous Sediment." Water Resources Research 34, no. 10:2501-2514. PNNL-SA-30264.
  • Szecsody J.E., J.M. Zachara, A. Chilakapati, P.M. Jardine, P.M. Jardine, and A.S. Ferrency. 1998. "Importance of Flow and Particle-Scale Heterogeneity on CoII/III EDTA Reactive Transport." Journal of Hydrology 209, no. 1-4:112-136. PNNL-SA-29840. doi:10.1016/S0022-1694(98)00114-0
  • Szecsody J.E., K.M. Krupka, M.D. Williams, K.J. Cantrell, C.T. Resch, and J.S. Fruchter. 1998. Uranium Mobility During In Situ Redox Manipulation of the 100 Areas of the Hanford Site. PNNL-12048. Richland, WA: Pacific Northwest National Laboratory. Uranium Mobility During In Situ Redox Manipulation of the 100 Areas of the Hanford Site
  • Thornton E.C., J.E. Szecsody, K.J. Cantrell, C.J. Thompson, J.C. Evans, J.S. Fruchter, and A.V. Mitroshkov. 1998. "Reductive Dechlorination of TCE by Dithionite-Treated Sediment." In Physical, Chemical and Thermal Technologies: Remediation of Chlorinated and Recalcitrant Compounds, edited by G.B. Wickramanayake and R.E. Hinchee, 335-340. Columbus, Ohio:Battelle Press. PNNL-SA-29835.

Subsurface Science & Technology