Sample Page

Wooyong Um – 2015
– 1 –
RESUME
WOOYONG UM
Senior Research Scientist (IV)
Energy and Environment Directorate
Pacific Northwest National Laboratory (PNNL)
PO Box 999, P7-22, Richland, WA 99352
Tel: (509) 372-6227; email: wooyong.um@pnnl.gov
http://agg.pnl.gov/staff/staff_info.asp?staff_num=867
EDUCATION
Ph.D. Aqueous Geochemistry, University of Nevada, Reno, 2001
M.S. Geology (Geophysics), Yonsei University, Seoul, Korea, 1994
B.S. Geology, Yonsei University, Seoul, Korea, 1990
EMPLOYMENT HISTORY
Visiting professor in Division of Advanced Nuclear Engineering (DANE), WCU program, Pohang University of Science and Technology (POSTECH): December 2010 – Present
Senior Research Scientist II in PNNL : January 2010 – Present
Senior Research Scientist I in PNNL : July 2006 – Dec. 2009
Adjunct Professor at Washington State University at Tricity : June 2004 – Present
Research Scientist in PNNL : March 2004 – June 2006
Postdoctoral Associate in PNNL : March 2002 – February 2004
Postdoctoral Associate in Desert Research Institute (DRI) : June 2001 – February 2002
Graduate Research Assistant in DRI : September 1998 – May 2001
PROFESSIONAL AFFILIATIONS
American Geophysical Union
American Water Resources Association
National Ground Water Association
American Chemical Society
AWARDS AND SERVICES
Editorial board member in Dataset Papers in Science: 2013 – Present
Recipient of 2010 PNNL Outstanding Performance Award
Recipient of the 2009 DOE Outstanding Mentor Award
Listed in the 2009/2011/2012 Edition of Who’s Who in America (Marquis)
Recipient of George B. and Jane C. Maxey Award, Desert Research Institute, 2001
Recipient of Geological Society of America research grants, 2000
Honor as an outstanding student in University of Nevada, Reno, 1998
Recipient of Nevada Medal fellowship, 1998
Recipient of Korea government scholarship, 1995 – 1998
MILITARY SERVICE
Korea army military service, Korea, June 1990 – September 1992.
Wooyong Um – 2015
– 2 –
RESEARCH EXPERIENCES
-Metal and radioactive wastes isolation and immobilization techniques development
-Performance assessment of low-level radioactive waste repository
-Contaminated soils characterization and remediation method development
-In situ X-ray Absorption Spectroscopy (XAS) for sorption at the soil/water interface
-Sorption and desorption studies of heavy metals and radionuclides
-Rate and mass transfer studies of solute uptake by earth materials.
-Geochemical surface complexation modeling of ion sorption/desorption
-X-ray Photoelectron Spectroscopy (XPS) for studies of surface complexes
-Pore structure and diffusion measurements using X-ray Micro-Tomography (XMT)
-Metal complex and speciation affecting on bioavailability and toxicity
-Fate and transport of metal and radionuclides (As, Se, I, Cr, U, and Tc)
-Modified zeolites or synthesis of novel nanoporous sorbents
-Reactive transport modeling of radionuclides and metals coupled with biogeochemical reactions.
-Reclamation and remediation of acid mine drainage (AMD)
-Deep geological CO2 sequestration and geochemical reaction model
-Biological remediation of contaminated soils and groundwater
-Physicochemical characterization techniques of mineral surfaces including particle size distribution, surface area, carbon contents, pore size distribution, scanning electron microscopy, x-ray diffraction, and potentiometric titrations.
TEACHING EXPERIENCES
Course 1: Fundamentals of radioactive waste management-3 credits for graduate school in 2014
fall semester (DANE/POSTECH, Pohang, Korea)
Course 2: Fundamentals of radioactive waste management-3 credits for graduate school in 2013
fall semester (DANE/POSTECH, Pohang, Korea)
Course 3: Radioactive contaminants in the environment-3 credits for graduate school in 2013
spring semester (DANE/POSTECH, Pohang, Korea)
Course 4: Radioactive contaminants in the environment-3 credits for graduate school in 2012
spring semester (DANE/POSTECH, Pohang, Korea)
Course 5: Radioactive contaminants and waste management-3 credits for graduate school in 2011 spring semester (Division of advanced nuclear engineering at Pohang university of science and technology, Pohang, Korea)
Course 6: Environmental geochemisty-2 credits for graduate school in 2010 fall semester (Environmental sciences and regional planning department at Washington State university at Tri-city)
Course 7: Fundamentals of Geochemistry-3 credits for senior undergraduate and graduate
student in 2008 spring semester (Environmental sciences and regional planning department at Washington state university at tri-city)
Course 8: Environmental modeling-3 credits for graduate school in 2005 fall semester (Environmental sciences and regional planning department at Washington State university at Tri-city)
Course 9: Environmental geochemisty-2 credits for graduate school in 2004 fall semester (Environmental sciences and regional planning department at Washington State university at Tri-city)
Current/past graduate students and postdocs in PNNL and POSTECH:
Dr. Guohui Wang: Postdoctoral Associate in PNNL. August, 2010- August, 2014.
Dr. Hunbok Jung: Postdoctoral Associate in PNNL. January, 2011- February, 2014.
Wooyong Um – 2015
– 3 –
Dr. Hyunshik Chang: Postdoctoral Associate in PNNL. January, 2009- January, 2010
Dr. Jungseok Yang: Postdoctoral Associate in PNNL. September, 2010- August, 2011.
Michelle Valenta: Master student in environmental sciences and regional planning at
Washington State University at tri-city. Graduated in May 2008.
Kenton Rod: Ph.D. Graduated in soil science department at Washington State University at Pullman in 2011.
Benjamin Williams: Master student in environmental science and regional planning at Washington State University at tri-city. Graduated in 2009 Fall.
Dr. Sungwook Cheong: Postdoctoral Associate in POSTECH. January, 2011- July, 2013.
Dr. Wonseok Kim: Postdoctoral Associate in POSTECH. January, 2014- Present.
Jongkwon Choi: Master in DANE/POSTECH. Graduated in spring 2013.
Minkyung Kim: Master in DANE/POSTECH. Graduated in spring 2014.
Seho Choi: Master in DANE/POSTECH. Graduated in spring 2015.
Seungshik Nam; Mater in in DANE/POSTECH. Graduated in spring 2015.
Total 8 graduated students now in DANE/POSTECH:
Ph.D. students (Mumtaz Kahn, Seeun Chang, Sangsoo Han, Seungshik Nam, Hyunjoo Kim, Jinmo Ahn) and MS stundents (Jeungjin Kim, Jaehuck Kang).
FUNDING HISTORY (ONLY LAST 5 YEARS) in PNNL
1. Tc retention in glass, $700,000, DOE-ORP (2014/1-2015/9)
2. Cementitious waste form development and testings, $1.2 M, WRPS (2014/10-2015/9)
3. Colloid-facilitated radionuclides, $120,000 per year for 3 years, NEUP (2014/10-2017/9)
4. National risk assessment program (NRAP) partnership-wellbore integrity team leader, $200,000 per year (2012/10 – 2016/9)
5. Tc management, $350,000, DOE-Headquarter (2013/1-2014/9)
6. U release from the acid waste solution contaminated sediments. Subsurface Biogeochemical Research (SBR)-DOE-SBR, project manager. $130,000 per year (2011/10 – 2014/9)
7. Tank residual waste treatment technology development. LDRD. $250,000 (2011/10 – 2012/9)
8. Secondary wastes treatment (Tc removal by goethite precipitates). EM-21, Task leader with Joseph Westsik, $350,000 per year (2009/10 – 2012/09)
9. Effects of Pore Structure Change and Multi-Scale Heterogeneity on Contaminant Transport and Reaction Rate Upscaling: DOE-ERSP, CoPI with Brent Lindquist (PI at SUNY), $150,000 per year (2009/10 – 2012/09).
10. Release of aged contaminants from weathered sediments: DOE-ERSP, CoPI with Jon Chorover (PI at University of Arizona), $85,000 per year (2008/10 – 2011/09).
FUNDING HISTORY (ONLY LAST 5 YEARS) in DANE/POSTECH
1. UK-KOREA research, total $200,000 ($50,000 for DANE) per year for 3 year, ROK-NRF (2015/5-2018/4)
2. Model development of fracture flow, $100,000 per year for 3 year, KETEP (2014/11-2017/10).
Wooyong Um – 2015
– 4 –
3. Sr mobility by seawater intrusion, $50,000 per year for 3 year, ROK-NRF (2013/11-2016/10).
4. WCU-foreign scholar (waste management group), $200,000 per year, ROK-NRF (2010/10-2013/12)
5. Radionuclides sorption and transport behavior in NPP sites, $100,000 per year for 2 years, DongAh Corp. (2012/10-2014/12)
SELECTED PUBLICATIONS
Journals (bold as a corresponding author)
Cho SH, Hwang DK, Wooyong Um, Son DH, and Oh K. 2015. “Sludge reduction by H2O2
oxidation with Fe/MgO catalyst”, Water Environment Research, 87(8), 675682.
Jung HB, JS Yang, Wooyong Um. 2015. “Bench-scale electrokinetic remediation for cesium-
contaminated sediment at the Hanford Site, USA”, J. Radioanal. Nucl. Chem, 304, 615-625. DOI 10.1007/s10967-014-3852-0.
Choung S, Minkyung Kim, Jung-Suk Yang, and Wooyong Um. 2014. “Effects of Radiation and Temperature on Iodide Sorption by Surfactant-Modified Bentonite”, Environmental Science and Technology, 48(16), 9684-9691.
Jung HB, S Kabilan, JP. Carson, AP. Kuprat, Wooyong Um, P Martin, M Dahl, T Kafentzis, T
Vagas, S Stephens, B Arey, KC. Carroll, A Bonneville, and CA Fernandez. 2014. “Wellbore Cement Fracture Evolution at the Cement-Basalt Caprock Interface during Geologic Carbon Sequestration”, Applied Geochemistry,47, 1-16.
Snyder MV and Wooyong Um. 2014. “Adsorption mechanisms and transport behavior between selenate and selenite on different sorbents”, International Journal of Waste Resource,
4(2),044. d doi:10.4172/2252-5211.1000144
Choi J, Wooyong Um, and Sungwook Choung. 2014. “Development of iron phosphate ceramic waste form to immobilize radioactive waste solution”, Journal of Nuclear Materials,452 (1-3), 16-23.
Kanematsu M, Nicolas Perdria, Wooyong Um, J Chorover, and PA. O’Day. 2014 “Influence of phosphate and silica on U(VI) precipitation from acidic and neutralized wastewaters”,
Environmental Science and Technology, 48, 6097-6106.
Chung CW, Jaehun Chun, Guohui Wang, and Wooyong Um. 2014. “Effects of iron oxides on
the rheological properties of cementitious slurry”, Colloids and Surfaces A, 453, 94-100.
Choung S, Wooyong Um, Seho Choi, AJ. Francis, Sungpyo Kim, Jin beak Park, and Suk- Hoon Kim. 2014. “Biogeochemical Changes at Early Stage After the Closure of Radioactive Waste Geological Repository in South Korea”, Annals of Nuclear Energy, 71, 6-10.
Wooyong Um – 2015
– 5 –
Cantrell KJ, Wooyong Um, BD Williams, ME Bowden, B Gartman, WW Lukens, EC Buck, and EJ Mausolf. 2014. “Chemical stabilization of Hanford tank residual waste”,
Journal of Nuclear Materials 446, 246-256.
Beckingham LE, CA Peters, Wooyong Um, KW Jones, and WB Lindquist. 2013. “2D and 3D
imaging resolution trade-offs in quantifying pore throats for prediction of permeability”
Advances in Water Resources 62, 1-12.
Choung S, Wooyong Um, M Kim and MG Kim. 2013. “Uptake mechanism for iodine species to black carbon”, Environmental Science and Technology, 47, 10349-10355.
Xu K, P Hrma, Wooyong Um, and J Heo. 2013. “Iron phosphate glass for immobilization of 99Tc.” Journal of Nuclear Materials, 441, 262-266.
Jung HB, Wooyong Um, and KJ Cantrell. 2013. “Effect of oxygen co-injected with carbon
dioxide on Gothic shale caprock-CO2-brine interaction during geologic carbon
sequestration.” Chemical Geology, 354, 1-14.
Brian Riley, J Chun, Wooyong Um, WC Lepry, J Matyas, MJ Olszta, X Li, K Polychronopoulou, and MG Kanatzidis. 2013. “Chalcogen-based aerogels as sorbents for radionuclide
remediation.” Environmental Science and Technology, 47, 7540-7547.
Jung HB and Wooyong Um. 2013. “Experimental study of potential wellbore cement carbonate
on by various phases of carbon dioxide during geologic carbon sequestration.” Applied
Geochemistry, 35, 161-172.
Chung CW, J Chun, Wooyong Um, SK Sundaram, and Joseph H. Westsik Jr. 2013. “Setting
and stiffening of cementitious components in Cast Stone waste form for disposal of secondary wastes from the Hanford waste treatment and immobilization plan.” Cement and Concrete Research, 46, 14-22.
Wang G. and Wooyong Um. 2013. “Facilitated strontium transport by remobilization of
strontium-containing secondary precipitates in Hanford Site subsurface.” Journal
of Hazardous Materials, 248-249, 364-370.
Jung HB, D Jansik, and Wooyong Um. 2013. “Imaging wellbore cement degradation by carbon dioxide under geologic sequestration conditions using X-ray computed
microtomography.” Environmental Science and Technology. 47, 283-289.
Wang G. and Wooyong Um. 2012. “Mineral dissolution and secondary precipitation on quartz
sand in simulated Hanford Tank solutions affecting subsurface porosity.” Journal of
Hydrology, 472-473, 159-168.
Um W., HS Chang, JP Icenhower, WW Lukens, RJ Serne, NP Qafoku, RK Kukkadapu, and JH
Westsik. 2012. “Iron oxide waste form for stabilizing 99Tc.” Journal of Nuclear
Materials, 429, 201-209.
Crandell LE, CA Peters, Wooyong Um, KW Jones, and WB Lindquist. 2012. “Changes in the
Wooyong Um – 2015
– 6 –
pore network structure of Hanford sediment after reaction with caustic tank wastes.”
Journal of Contaminant Hydrology 131(1-4):89-99.
Chung CW, Wooyong Um, MM Valenta, SK Sundaram, Jaehun Chun, Kent E. Parker, ML
Kimura, and Joseph H. Westsik Jr. 2012. “Characteristics of cast stone cementitious waste form for immobilization of secondary wastes from vitrification process.” Journal of Nuclear Materials, 420, 164-174.
Chang H-S., Wooyong Um, K Rod, RJ Serne, A Thompson, N Perdrial, CI Steefel, and J Chorover. 2011. “Strontium and Cesium Release Mechanisms during Unsaturated Flow through Waste Weathered Hanford Sediments.” Environmental Science and
Technology, 45(19), 8313-8320.
Kim BC, J Lee, Wooyong Um, J Kim, J Joo, JH Lee, JH Kwak, JH Kim, C Lee, H Lee, RS Addleman, T Hyeon, MB Gui, J Kim. 2011. “Magnetic Mesoporous materials for removal of environmental wastes.” Journal of Hazardous Materials, 192, 1140-1147.
Um W, H-S Chang, JP Icenhower, WW Lukens, RJ Serne, NP Qafoku, JH Westsik, Jr., EC Buck and SC Smith. 2011. “Immobilization of 99-Technetium (VII) by Fe(II)-Goethite and Limited Reoxidation.” Environmental Science and Technology, 45(11), 4904-4913.
Rod KA, Wooyong Um, and M Flury. 2010. “Transport of strontium and cesium in simulated Hanford tank waste leachate through quartz sand under saturated and unsaturated flow.” Environmental Science and Technology, 44(21), 8089-8094.
Um W, JM Zachara, C Liu, DA Moore and K Rod. 2010. “Resupply Mechanism to a
Contaminated Aquifer: A Laboratory Study of U(VI) Desorption from Capillary Fringe Sediments.” Geochimica et Cosmochimica Acta, 74, 5155-5170.
Um W, JP Icenhower, CF Brown, RJ Serne, Z Wang, CJ Dodge, and AJ Francis. 2010. “Characterization of uranium-contaminated sediments from beneath a nuclear waste storage tank from Hanford, Washington: Implications for contaminant transport and
fate.” Geochimica et Cosmochimica Acta, 74, 1363-1380.
Cai R., WB Lindquist, Wooyong Um, KW Jones. 2009. “Tomographic analysis of reactive flow induced pore structure changes in column experiments.” Advances in Water Resources, 32, 1396-1403.
Um W, RJ Serne, Z Wang, CF Brown, BD Williams, CJ Dodge, and AJ Francis. 2009.
“Uranium Phases in Contaminated Sediments below Hanford’s U Tank Farm.” Environmental Science and Technology 43, 4280-4286.
Um W, RJ Serne, GV Last, RE Clayton, and ET Glossbrenner. 2009. “The effect of gravel size fraction on the distribution coefficients of selected radionuclides.” Journal of Contaminant Hydrology 107: 82-90.
Wooyong Um – 2015
– 7 –
Um W, RJ Serne, CF Brown, and K Rod. 2008. “Uranium (VI) sorption on iron oxides in Hanford Site sediment: Application of a surface complexation model.” Applied Geochemistry 23: 2649-2657.
Um W, RJ Serne, CF Brown, and GV Last. 2007. “U(VI) Adsorption on 200-UP-1 Aquifer
Sediments at the Hanford Site.” Journal of Contaminant Hydrology 93: 255-269.
Shin, Y. GE Fryxell, W Um, K Parker, SV Mattigod, and R Skaggs. 2007. “Sulfur- Functionalized Mesoporous Carbon.” Advanced Functional Materials 17: 2897-2901.
Um W, RJ Serne, and KM Krupka. 2007. “Surface Complexation Modeling of U(VI) Adsorption to Hanford Sediment with Varying Geochemical Conditions.” Environmental Science and Technology 41 (10): 3587-3592.
Um, W, S Mattigod, RJ Serne, GE Fryxell, DH Kim, and LD Troyer. 2007. “Synthesis of nanoporous zirconium oxophosphate and application for removal of U(VI)” Water Research 41(15): 3217-3226.
Um W and RJ Serne. 2005. “Sorption and Transport Behavior of Radionuclides in the Proposed Low-Level Radioactive Waste Facility at the Hanford Site, Washington.” Radiochimica Acta 93(1): 57-63.
Um W, RJ Serne, SB Yabusaki, and AT Owen. 2005. “Enhanced radionuclide immobilization and flow path modifications by dissolution and secondary precipitates.” Journal of Environmental Quality 34(4): 1404-1414.
Um W and C Papelis. 2004. “Metal ion sorption and desorption on zeolitized tuffs from the Nevada Test Site.” Environmental Science and Technology 38(2): 496-502.
Um W, RJ Serne, and KM Krupka. 2004. “Linearity and reversibility of iodide adsorption on sediments from Hanford, Washington under water saturated conditions.” Water Research 38(8): 2009-2016.
Diallo MS, S Christie, P Swaminathan, L Balogh, X Shi, W Um, C Papelis, WA Goddard III, and JH Johnson Jr. 2004. “Dendritic chelating agents 1. Cu (II) binding to ethylene diamine core poly (amidoamine) dendrimers in aqueous solutions.” Langmuir 20(7): 2640-2651.
Papelis C, W Um, CE Russell, and JB Chapman. 2003. “Measuring the specific surface area of natural and manmade glasses: Effects of formation process, morphology, and particle size.” Colloids & Surfaces A 215 (1-3): 221-239.
Um W and C Papelis. 2003. “Sorption mechanisms of Sr and Pb on zeolitized tuffs from the Nevada Test Site as a function of pH and ionic strength.” American Mineralogist, 88(11-12): 2028-2039.
Um W and C Papelis. 2002. “Geochemical effects on colloid-facilitated metal transport through zeolitized tuffs from the Nevada Test Site.” Environmental Geology 43(1-2): 209-218.
Wooyong Um – 2015
– 8 –
Books
Keith W. Jones, Ryan Tappero, Jun Wang, Yu-chen Chen, Qingxi Yuan, W. Brent Lindquist, Lauren Crandell, Catherine A. Peters, Wooyong Um, Lee Newman, Tara Sabo-Attwood, and Cecily Moyer. 2013. “Tomographic Investigations Relevant to the Rhizosphere”,
Soil-Water-Root Processes: Advances in Tomography and Imaging, Special Publication 61, S.H. Anderson and J.W. Hopmans, editors; SSSA, publisher.
Papelis C and W Um. 2001. “Anion and cation transport in zeolitized tuffs from the Nevada Test Site.” In Heavy Metals Release in Soils (ed. by HM Selim and DL Sparks), Chapter 2, pp. 31-54. CRC Press, Boca Raton, Florida.
Proceedings
Um W, G Wang, RJ Serne. 2013. “The effects of secondary mineral precipitates on 90Sr mobility at the Hanford Site, USA”, Procedia Earth and Planetary Science, 7, 855-858. Proceedings of the fourteenth international symposium on Water-Rock Interaction, WRI 14.
Selected Technical Reports
Um W, and HB Jung. 2012. Results of Laboratory Scale Fracture Tests on Rock/Cement Interfaces. PNNL-21446, Pacific Northwest National Laboratory, Richland, WA.
Wang G, RJ Serne, MJ Lindberg, W Um, BN Bjornstad, BD Williams, IV Kutynakov, Z Wang, and N Qafoku. 2012. Uranium in Hanford Site 300 Area: Extraction Data on Borehole Sediments. PNNL-22032, Pacific Northwest National Laboratory, Richland, WA.
Um W, HB Jung, PF Martin, and BP McGrail. 2011. Effective Permeability Change in Wellbore Cement with Carbon Dioxide Reaction. PNNL-20843, Pacific Northwest National Laboratory, Richland, WA.
Sundaram SK, KE Parker, MM Valenta, SG Pitman, J Chun, CW Chung, ML Kimura, CA Burns, W Um, and JH Westsik, Jr. 2011. Secondary Waste Form Development and Optimization of Cast Stone. PNNL-20159 Rev. 1, Pacific Northwest National Laboratory, Richland, WA.
Um W, MM Valenta, CW Chung, J Yang, MH Engelhard, RJ Serne, KE Parker, G Wang, KJ Cantrell, and JH Westsik, Jr. 2011. Radionuclide Retention Mechanisms in Secondary Waste-Form Testing: Phase II . PNNL-20753, Pacific Northwest National Laboratory, Richland, WA.
Um W, HB Jung, PF Martin, and BP McGrail. 2011. Effective Permeability Change in Wellbore Cement with Carbon Dioxide Reaction. PNNL-20843, Pacific Northwest National Laboratory, Richland, WA.
Wooyong Um – 2015
– 9 –
Hess NJ, M Oostrom, MA Celia, M Hilpert, Q Kang, LJ Pyrak-Nolte, TD Scheibe, AM Tartakovsky, CJ Werth, D Wildenschild, C Zhang, SE Bialkowski, TA Ghezzehei, G Tang, F Doster, J Kumar, R Parashar, R Gerlach, H Yoon, GD Redden, T Zhang, H Huang, J Nogues, W Deng, H Resat, KA Rod, DR Baer, RT Kelly, W Um, G Wang, MC Richmond, DR Rector, ML Stewart, HB Jung, and C Plata. 2011. EMSL Pore Scale Modeling Challenge/Workshop. PNNL-21086, Pacific Northwest National Laboratory, Richland, WA.
Qafoku N, PE Dresel, JP McKinley, ES Ilton, W Um, CT Resch, RK Kukkadapu, and SW Petersen. 2011. Geochemical Characterization of Chromate Contamination in the 100 Area Vadose Zone at the Hanford Site – Part 2. PNNL-17865, Pacific Northwest National Laboratory, Richland, WA.
Pierce EM, SV Mattigod, JH Westsik, Jr, RJ Serne, JP Icenhower, RD Scheele, W Um, and N Qafoku. 2010. Review of Potential Candidate Stabilization Technologies for Liquid and Solid Secondary Waste Streams. PNNL-19122, Pacific Northwest National Laboratory, Richland, WA.
Um W, MJ Truex, MM Valenta, C Iovin, IV Kutnyakov, H Chang, RE Clayton, RJ Serne, AL Ward, CF Brown, KN Geiszler, ET Clayton, SR Baum, and DM Smith. 2009. Characterization of Sediments from the Soil Desiccation Pilot Test (SDPT) Site in the BC Cribs and Trenches Area. PNNL-18800, Pacific Northwest National Laboratory, Richland, WA.
RJ Serne, AL Ward, W Um, BN Bjornstad, DF Rucker, DC Lanigan, MW Benecke. 2009Electrical Resistivity Correlation to Vadose Zone Sediment and Pore-Water Composition for the BC Cribs and Trenches Area. PNNL-17821, Pacific Northwest National Laboratory, Richland, WA.
Brown CF, W Um, and RJ Serne. 2008. Uranium Contamination in the 300 Area: Emergent Data and their Impact on the Source Term Conceptual Model. PNNL-17793, Pacific Northwest National Laboratory, Richland, WA.
Brown CF, JP Icenhower, W Um, BN Bjornstad, MM Valenta, C Iovin, DC Lanigan, RE Clayton, KN Geiszler, ET Clayton, IV Kutnyakov, SR Baum, MJ Lindberg, and RD Orr. 2007. Characterization of Direct-Push Vadose Zone Sediments from the 241-B and 241- BX Tank Farms. PNNL-17162, Pacific Northwest National Laboratory, Richland, WA.
Zachara JM, CF Brown, JN Christensen, JA Davis, PE Dresel, C Liu, SD Kelly, JP McKinley, RJ Serne, and W Um. 2007. A Site Wide Perspective on Uranium Geochemistry at the Hanford Site. PNNL-17031, Pacific Northwest National Laboratory, Richland, WA.
BA Williams, CF Brown, W. Um, MJ Nimmons, RE Peterson, BN Bjornstad, DC Lanigan, RJ Serne, FA Spane, and ML Rockhold. 2007. Limited Field Investigation Report for Uranium Contamination in the 300 Area, 300-FF-5 Operable Unit, Hanford Site, Washington. PNNL-16435, Pacific Northwest National Laboratory, Richland, Washington, 2007.
Wooyong Um – 2015
– 10 –
Um W and RJ Serne. 2006. Characterization of 200-UP-1 and 200-ZP-1 operable unit aquifer sediments and batch adsorption distribution coefficients for contaminants of concern—Fiscal year 2006 Progress. PNNL-16102, Pacific Northwest National Laboratory, Richland, Washington, 2006.
Whyatt GA, CM Fischer, W Um, RJ Serne, and S Schlahta. 2005. “Experimental and Calculation Evaluation of Hydrogen Generation During Grouting of Aluminum-Containing Hardware in the K-Basins.” In Potential for generation of flammable mixtures of hydrogen from Aluminum-grout interaction in the K basin during basin grouting by SM Short and BM Parker. PNNL-15156, Pacific Northwest National Laboratory, Richland, Washington, 2005.
Um W, RJ Serne, BN Bjornstad, HT Schaef, VL Legore, KN Geizler, SR Baum, MM Valenta, IV Kutnyakov, TS Vickerman, MJ Lindberg, and CF Brown. 2005. Characterization of UP-1 aquifer sediments and results of sorption-desorption tests using spiked uncontaminated groundwater. PNNL-15502, Pacific Northwest National Laboratory, Richland, Washington, 2005.
Um W and RJ Serne. 2005. U(VI) adsorption to IDF sediment using simulated glass leachate: application of a surface complexation model (SCM). Issue letter report to CH2M Hill Hanford for geochemistry studies for Integrated Disposal Facility (IDF) performance assessment, September, 2005.
Um W and C Papelis. 2003. Evaluation of Cesium, Strontium, and Lead Sorption, Desorption, and Diffusion in Cores from Western Pahute Mesa, Nevada Test Site, Based on Macroscopic and Spectroscopic Investigation. DOE/NV/13609-16, Publication No. 45187, U.S. Department of Energy Nevada Operations Office, Las Vegas, Nevada.
Um W and C Papelis. 2003. Evaluation of Cesium, Strontium, and Lead Sorption, Desorption, and Diffusion in Alluvium from Frenchman Flat, Nevada Test Site: Macroscopic and Spectroscopic Investigation. DOE/NV/13609-18, Publication No. 45189, U.S. Department of Energy Nevada Operations Office, Las Vegas, Nevada.
Um W and RJ Serne. 2003. “Sorption Linearity and Reversibility of Iodide at the Proposed Immobilized Low-Activity Waste Repository at the Hanford Site.” In Hanford Groundwater Monitoring for Fiscal Year 2002, MJ Hartman, LF Morasch, and WD Webber (eds.), Section 3.1.3.2, pp. 3.1-20–3.1-22. PNNL-14187, Pacific Northwest National Laboratory, Richland, Washington.
Hayes KF, SJ Trania, C Papelis, LE Katz, JD Morton, R Amata, W Um, and E Boyle-Wight. 1998. Competing effects of metal ion sorption on oxides and clays. Stanford Synchrotron Radiation Laboratory (SSRL) Activity Report, 1998.
PRESENTATIONS
W Um, SA Luksic, G Wang, D-S Kim, MJ Schweiger, P Hrma, and AA Kruger. “Development
of Tc(IV)-Incorporated Fe Minerals to Enhance 99Tc Retention in Glass Waste”,
Presented in Waste Management conference, Phoenix, Arizona, March 15-19, 2015.
Wooyong Um – 2015
– 11 –
CF Brown, J Westsik, J Serne, W Um, K Fox, A Cozzi, and B Wilmarth. “Assessment of the
cast stone low temperature waste form technology coupled with technetium removal”,
Presented in Waste Management conference, Phoenix, Arizona, March 2-6, 2014.
E Reinoso-Maset, W Um, J Chorover, C Steefel, and PA O’Day. “Rates and mechanisms of
uranyl oxyhydroxide mineral dissolution”, Presented in American Chemistry Society National Meeting, March 22-26, 2014, Denver, CO, USA
E Reinoso-Maset, W Um, J Chorover, C Steefel, and PA O’Day. “Rates and mechanisms of
uranyl oxyhydroxide mineral dissolution”, Presented in Goldschmidt 2014 conference, June 8-13, 2014, Sacramento, CA, USA.
W Um, G Wang, NM Washton, KT Mueller, and Z Wang. “Uranium release from acidic
weathered Hanford sediments”, Presented in the Geological Society of America Annual Meeting, October 19-22, 2014, Vancouver, BC, Canada.
H Kim and W Um. “Synthesis of Various Apatite and Application for Uranium Removal”,
Presented in the Geological Society of America Annual Meeting, Canada, October 19-22, 2014, Vancouver, BC.
S Chang, H Kim, and W Um. “Seawater intrusion effect on radioactive strontium mobility”,
Presented in the Geological Society of America Annual Meeting, October 19-22, 2014, Vancouver, BC, Canada.
N Perdnrial, M Kanematsu, G Wang, W. Um, PA O’Day, and J Chorover. “Process coupling
between mineral transformation and U speciation in acid waste weathered sediments”, Presented in American Geophysical Union Fall Meeting, December 9-13, 2013, San Francisco, California.
Um W and KJ Cantrell. “Limited release of U and Tc from Hanford tank residual wastes”, Presented in Goldschmidt 2013 conference, August 25-30, 2013, Florence, Italy.
Um W, G Wang, RJ Serne. “The effects of secondary mineral precipitates on 90Sr mobility at the Hanford Site, USA”, Presented in Water-Rock Interaction, WRI 14, June 9-14, 2013, Avignon, France.
W. Um. “Sorption behavior of radionuclide iodine on organic and inorganic sorbents”,
Presented in Korean Nuclear Society meeting (Daegu, Korea), May 8-12, 2013.
W. Um and S. Choung. “Varying Uranium phases at different depth of Hanford contaminated sediments”, Presented in Korean Society of Economic and Environmental Geology (Changwon, Korea), April 24-26, 2013.
W. Um and G Wang. “Enhanced transport of Sr by mobile secondary precipitates”, Presented in 9th Washington Hydrogeology Symposium, April 22-25, 2013, Tacoma, Washington.
Wooyong Um – 2015
– 12 –
W. Um “Wellbore cement carbonation by various phases of carbon dioxide during geologic carbon sequestration”, Presented in 9th Washington Hydrogeology Symposium, April 22- 25, 2013, Tacoma, Washington.
HB Jung, W. Um. “Experimental study of potential wellbore cement carbonation by various phases of carbon dioxide during geologic carbon sequestration”, Presented in AGU Fall Meeting, December 3-7, 2012, San Francisco, California.
G Wang, KW Jones, W. Um, ML Rockhold, LE Crandell, C. Peters, WB Lindquist. “Time-dependent Measurements of Dissolution-precipitation Reactions Caused by Caustic Waste Solutions At the Hanford Site Using Synchrotron Computed Microtomography”, Presented in AGU Fall Meeting, December 3-7, 2012, San Francisco, California.
W. Um. “Sorption behavior of radionuclide iodine on organic and inorganic sorbents”, Presented in Korean Nuclear Society meeting (Jeju, Korea), May 17-18, 2012.
HB Jung, W Um, K Cantrell. “Effect of impurity oxygen on mobilization of toxic contaminants
from a seal rock by supercritical carbon dioxide.” Presented in Annual Carbon Capture Utilization and Sequestration, Pittsburgh, Pennsylvania, May 13-16, 2012.
W Um, HB Jung, D Jansik. “Cement carbonation by various phases of carbon dioxide along the
wellbore.” Presented in Annual Carbon Capture Utilization and Sequestration, Pittsburgh, Pennsylvania, May 13-16, 2012.
W. Um. “Weathering effect on 99Tc leachability from cementitious waste form”, Presented in
Radioactive Waste Management Society meeting (Changwon, Korea), May 9-12, 2012.
W. Um. “Transport behavior of Uranium in Hanford vadose zone.” Presented in Korean
Chemical Society meeting, Goyang, Korea, April, 24-27, 2012.
W. Um. “Low-temperature radioactive waste form development and 99Tc leachability”,
Presented in Korean Society of Economic and Environmental Geology (Gosung, Korea),
April 18-20, 2012.
G Wang, W. Um. “Facilitated Contaminant Transport by Remobilization of Sr containing
colloid-sized secondary precipitates in Hanford site.” Presented in American Chemical Society, San Diego, California, March 25-29, 2012.
K Xu, W. Um, J Heo. “Iron-Phosphate Glass for Immobilization of Radioactive Technetium”,
Presented in Waste Management conference, Phoenix, Arizona, February 26-March 1, 2012.
L. Crandell, CA. Peters, W. Um, K. Jones, B. Lindquist. “Intragranular porosity in Hanford
sediment: Quantification and implications for radionuclide trapping.” Presented in American Chemical Society, San Diego, California, March 25-29, 2012.
Wooyong Um – 2015
– 13 –
Giehyeon Lee, Seonyi Namgung, W Um. “Remobilization of Cr(VI) from Cr(OH)3(s) coupled with heterogeneous Mn(II) oxidation.” Presented in American Geophysical Union conference, San Francisco, CA, December 5-9, 2011.
CA Peters, L. Crandell, W. Um, K. Jones, B. Lindquist. “A resolution battle: Impact of small throats and grain surface roughness on estimating permeability in porous media.” Presented in American Geophysical Union conference, San Francisco, CA, December 5-9, 2011.
L. Crandell, CA. Peters, W. Um, K. Jones, B. Lindquist. “Intragranular porosity in Hanford sand grains after reaction with caustic tank wastes: Quantification and implications for reactive transport.” Presented in American Geophysical Union conference, San Francisco, CA, December 5-9, 2011.
Um W. “Uranium sorption and desorption from aquifer sediment.” Presented in the Korean Geological Society meeting, Jeju, Korea, October 26-28, 2011.
Um W. “Natural and Synthetic Barriers to Immobilize Radionuclides.” Presented in the Korean Radioactive Waste Society meeting, Jeju, Korea, October 12-14, 2011.
Wang Z, J.M. Zachara, Y. Xia, D.A. Moore, C.T. Resch, W. Um, J.-F. Boily, C. Liu. “Cryogenic laser-induced time-resolved fluorescence spectroscopy studies of U(VI) in contaminated sediments.” Presented in Migration conference, Beijing, China, September 17-23, 2011.
Um W, Keith Jones, B. Lindquist. “X-ray microtomographic analysis of geochemical reaction induced pore structure changes affecting migration of radionuclides.” Presented in Migration conference, Beijing, China, September 17-23, 2011.
Um W, H-S Chamg. “Release Mechanisms of Sr and Cs from the Weathered Hanford Sediments.” Presented in Goldschmidt, Prague, Czechoslovakia, August 13-20, 2011.
Um W and JH. Westsik Jr. “Evolution of 99Tc Species in Cementitious Nuclear Waste Form.” Presented in the Korean Nuclear Society Spring meeting, Taebaek, Korea, May 26-27, 2011.
Um W, RJ Serne, MJ Truex. “Technetium-99 and uranium-238 contamination on sediments in the BC Cribs and Trenches Area at Hanford Site.” Presented in 8th Washington Hydrogeology Symposium, Tacoma, WA, April 26-28, 2011.
Guohui Wang and Wooyong Um. “Radionuclide immobilization and flow path modifications by dissolution and secondary precipitates.” Presented in 8th Washington Hydrogeology Symposium, Tacoma, WA, April 26-28, 2011.
Jung-Seok Yang, Wooyong Um. “Removal of heavy metals in acid mine drainage using carbonate cancrinite and sodalite.” Presented in 8th Washington Hydrogeology Symposium, Tacoma, WA, April 26-28, 2011.
Wooyong Um – 2015
– 14 –
Lauren Crandell, Catherine A. Peters, Wooyong Um, W. Brent Lindquist. “Sub-grain scale mineralogy of Hanford sand after reaction with caustic tank wastes.” Presented in American Geophysical Union conference, San Francisco, CA, December 13-17, 2010.
Um W, J Serne, N Qafoku, J Westsik. “Sequestration of 99Tc by goethite.” Presented in American Chemical Society, Boston, Massachusetts, August 21-25, 2010.
Um W, J Zachara, C Liu. “U(VI) desorption from capillary fringe sediments.” Presented in Goldschmidt, Knoxville, Tennessee, June 13-18, 2010.
Um W, K Rod, M Flury, S Choi, J Choi. “The effects of secondary precipitates on transport of strontium and cesium with varying water contents at the Hanford Site.” Presented in Migration, Kennewick, WA, September 20-25, 2009.
Icenhower JP, W Um, CF Brown, RJ Serne, Z Wang, CL Dodge, AJ Francis. “Beyond micropores: The search for contaminant uranium outside of lithic fragments at Hanford, Washington.” Presented in Migration, Kennewick, WA, September 20-25, 2009.
Chang H, W Um, K Rod. “Release mechanisms of strontium and cesium from contaminated Hanford sediment under saturated and unsaturated column conditions.” Presented in Migration, Kennewick, WA, September 20-25, 2009.
Williams B, W Um, CF Brown, Z Wang. “Uranium contamination of vadose zone sediments from the Hanford Site 241-U single shell tank farm, Washington, USA.” Presented in Migration, Kennewick, WA, September 20-25, 2009.
Um W, CF Brown, RJ Serne, Z Wang, BD Williams. “Different uranium phases on contaminated sediments.” Presented in 7th Washington Hydrogeology Symposium, Tacoma, WA, April 28-30, 2009.
Brown CF, W Um, J Serne. “Uranium contamination in the 300 area: emergent data and their impact on the source term conceptual model.” Presented in 7th Washington Hydrogeology Symposium, Tacoma, WA, April 28-30, 2009.
Chorover J, K Muller, P O’Day, C Steefel, W Um, N Perdrial, N Rivera, T Aaron. “Release of
aged contaminants from weathered sediments: effects of sorbate speciation on scaling of
reactive transport.” Presented in 4th Annual DOE ERSP PI meeting, Lansdowne, VA,
April 20-23, 2009.
Lindquist, WB, M Celia, KW Jones, W Um, M Rockhold. “Effects of pore structure change and
multiscale heterogeneity on contaminant transport and reaction rate upscaling.” Presented in 4th Annual DOE ERSP PI meeting, Lansdowne, VA, April 20-23, 2009.
Um W. 2008. “Legendary Hanford radioactive wastes and Sciences/researches in PNNL.”
Presented in Korea Atomic Energy Research Institute (KAERI) as invited lecture, Daejon, Korea, October 16-17, 2008.
Um W and J Choi. 2008. “Uranium contamination at the Hanford Site.” Presented in
Wooyong Um – 2015
– 15 –
Korean Society of Soil and Groundwater Environment conference, POSTECH,
Pohang, Korea, October 9-10, 2008.
Um W. 2008. “Remediation technology for heavy metals and uranium in USA.” Presented in
International symposium on remediation of abandoned mines, KIST Gangneung
Institute, Korea, October 7-9, 2008.
Um W, CF Brown, RJ Serne, Z Wang, CJ Dodge, and AJ Francis. 2008. “Uranium surface
species on BX tank farm sediments at the Hanford Site.” Presented in 235th ACS
national meeting, New Orleans, LA, April 6-10, 2008.
Um W, RJ Serne, and CF Brown. 2007. “Application of Surface Complexation Modeling
to Uranium(VI) Sorption on Hanford Sediments.” Presented in 6th Washington Hydrogeology Symposium, Tacoma, WA, May 1-3, 2007.
Valenta M, W Um, and RJ Serne. 2007. “Macroscopic Investigation of Different Sorption
Mechanisms between Selenite and Selenate on Hanford Sediments.” Presented in 6th
Washington Hydrogeology Symposium, Tacoma, WA, May 1-3, 2007.
Rod KA, W Um, and RJ Serne. 2007. “Unsaturated flow of Hanford tank waste leachate effects on transport of Cs and Sr.” Presented in 6th Washington Hydrogeology Symposium, Tacoma, WA, May 1-3, 2007.
Um W, S Mattigod, RJ Serne, and LD Troyer. 2006. “Synthesis of nanoporous zirconium
oxophosphate and application for removal of U(VI).” Presented in 232nd ACS national
meeting, San Francisco, CA, September 10-14, 2006.
Rod KA., W Um, JR Serne. 2006. “Effect of Hanford Tank Waste leachate on radionuclide transport through unsaturated sediment.” Presented in AGU Fall meeting, San Francisco, CA, December 11-15, 2006.
Um W and RJ Serne. 2005. “Iodide adsorption and transport at the Hanford Site, Washington,
U.S.A.” Presented at the 15th Annual Goldschmidt Conference: A voyage of discovery
Moscow, Idaho, USA, May 20 – 25, 2005.
Um W, RJ Serne, and CF Brown. 2005. “Radionuclides sequestration on sediments.” Presented
at the Pacifichem Conference: International chemical congress of pacific basin societies,
Honolulu, Hawaii, USA, December 15 – 20, 2005.
Um W, RJ Serne, SB Yabusaki, VL Freedman, SD Samson, and KL Nagy. 2004. “The
role of secondary mineral precipitates on radionuclide sequestration at the Hanford Site,
Washington, USA.” Presented at the 11th international symposium on
Water-Rock Interaction (Radionuclide interactions with minerals and microbes), Saratoga Springs, New York, USA, June 27 -July 2, 2004.
Papelis C, W Um, and R Harris. 2003. “Mobility of perchlorate in soils from the Las Vegas
wash.” Presented at the Nevada Water Resources Association meeting, Sparks, Nevada,
February 26, 2003.
Wooyong Um – 2015
– 16 –
Yoon S-J, KW Jones, A Lanzirotti, H Feng, W Um, RJ Serne, KG Karthikeyan, and WF Bleam.
2003. “X-ray microtomography study of metal distribution in sediments and pore
structure modification under extremely alkaline conditions.” Presented in 225th ACS
national meeting, New Orleans, LA, March 23-27, 2003.
Papelis C, W Um, C Russell, and J Chapman. 2003. “Specific surface area of glasses as a
function of formation process, morphology, and particle size.” Presented at the 2003
EGS-AGU-EUG Joint Assembly, Nice, France, April 6-11, 2003 (Geophysical Research
Abstracts, Vol. 5, 2003, EGS-AGU-EUG Joint Assembly, ISSN: 1029-7006).
Um W and RJ Serne. 2003. “Effects of leaked high-level nuclear wastes on Hanford Site
vadose zone: mineral dissolution/precipitates and radionuclide sequestration.” Presented
at the 2003 US-KOREA Conference on science, technology, and entrepreneurship,
California Institute of Technology, Pasadena, California, August 8-10, 2003.
Um W and C Papelis. 2003. “Macroscopic and spectroscopic studies of strontium (Sr) sorption
on zeolitized tuffs from the Nevada Test Site.” Presented at the 9th international conference of Migration’03 (chemistry and migration behavior of actinides and fission
products in the geosphere), Gyeongju, Korea, September 21-26, 2003.
Um W and RJ Serne. 2003. “Sorption and transport behavior of radionuclides on the proposed
low-level radioactive wastes repository at the Hanford Site, Washington.” Presented at
the 9th international conference of Migration’03 (chemistry and migration behavior of
actinides and fission products in the geosphere), Gyeongju, Korea, September 21-26,
2003.
Um W and C Papelis. 2002. “Mechanisms of Sr(II) and Pb(II) sorption on zeolitized tuffs from the Nevada Test Site, USA, based on macroscopic and spectroscopic investigations.” Presented at Zeolite 02, 6th International Conference on the Occurrence, Properties, and Utilization of Natural Zeolites, Thessaloniki, Greece, June 3-7, 2002 (Book of Abstracts, P.Misaelides, Ed., p. 371-372).
Um W and C Papelis. 2002. “Colloid-facilitated lead transport in zeolitized tuffs from the
Nevada Test Site: Effects of pH and ionic strength.” Presented at the 76th ACS Colloid
and Surface Science Symposium, The University of Michigan, Ann Arbor, MI, June 23-
26, 2002 (Program and Abstracts, Abstract No. 32).
Um W and C Papelis. 2001. “Sorption mechanisms of Sr(II) and Pb(II) on zeolitized tuffs from the Nevada Test Site.” Presented to the 222nd ACS national meeting, Chicago, Illinois, Aug. 26-30, 2001.
Um W. 2001. “Sorption mechanisms of Sr(II) and Pb(II) on zeolitized tuffs from the Nevada Test Site using X-ray Absorption Spectroscopy(XAS) and X-ray Photoelectron Spectroscopy(XPS).” Presented at the Yonsei University, Department of Earth System Sciences, Seoul, KOREA, October 24, 2001.
Wooyong Um – 2015
– 17 –
Um W. 2001. “Sorption mechanisms and transport behavior of Sr(II) and Pb(II) on zeolitized tuffs from the Nevada Test Site.” Presented at the Argonne National Laboratory, Environmental Research Division, December 17,2001.
Um W. 2001. “Sorption mechanisms and transport behavior of Sr(II) and Pb(II) on zeolitized tuffs from the Nevada Test Site.” Presented at the Pacific Northwest National Laboratory, Applied Geology and Geochemistry, December 27, 2001.
Um W and C Papelis. 2000. “Effects of sorption mechanism on the migration of strontium in zeolitized tuffs from the Nevada Test Site.” Presented to the annual meeting of Geological Society of America, Reno, Nov. 13-17, 2000 (GSA abstracts with program, 32, No. 2, Nov. 2000).
Papelis C and W Um. 1999. “Strontium, cesium, and chromate transport in zeolitized tuffs from the Nevada Test Site, Nevada, U.S.A.” Poster presentation in 5th international conference on the Biogeochemistry of trace elements, Vienna, Austria, July 11-15, 1999 (Proceedings of the extended abstracts from the ICOBTE, Vol. 2, pp. 800-801, July 1999).
Wooyong Um – 2015
– 18 –
REFERENCES
1. Dr. Charalambos (Lambis) Papelis: Associate professor
University of Nevada, Reno and Desert Research Institute (DRI).
Program director of water management program in University of Nevada, Las Vegas.
Address: Desert Research Institute, 755 E.Flamingo Road, Las Vegas, NV 89119
Phone: 702-862-5453; Fax: 702-862-5427; EMAIL: lambis@dri.edu
2. Dr. Jon Chorover: Professor – Environmental Chemistry Department of Soil, Water and Environmental Science University of Arizona
Address: P.O. Box No. 210038, Tucson, AZ 85721-0038 Phone: (520) 626-5635; Fax: (520) 621-1647; E-mail: chorover@cals.arizona.edu
4. Dr. Daniel Kaplan: Staff Scientist
Savannah River National Laboratory
Address: Building 773-43A, Room 215, Aiken, SC 29808
Phone: 803-725-2363; E-mail: Daniel.Kaplan@srs.gov).