교수소개
HOME > 교수소개
    • Name

      엄우용(Wooyong Um)
    • Department

      Division of Advanced Nuclear Engineering (DANE) / Division of Environmental Science and Engineering (DESE)
    • Office

      Experiment Building 1, 305
    • Phone

      +82-54-279-9563
    • E-mail

      wooyongum@postech.ac.kr
    • Education

      • Ph.D., 2001, Aqueous Geochemistry, University of Nevada, Reno, USA
      • M.S., 1994, Geology (Geophysics), Yonsei University, Seoul, Korea
      • B.S., 1990, Geology, Yonsei University, Seoul, Korea
  • Career

    • Professor, DANE/DESE, POSTECH, March 2017 - Present
    • Research Professor at Washington State University with joint appointment: December 2015- March. 2017
    • Staff Scientist V in PNNL: January 2017 - August 2017
    • Visiting professor in Division of Advanced Nuclear Engineering (DANE), WCU program, Pohang University of Science and Technology (POSTECH): December 2010 - February 2017Present
    • Senior Research Scientist II/IV in PNNL: January 2010 - December 2016
    • Senior Research Scientist I in PNNL: July 2006 - December. 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 Desert Research Institute (DRI): September 1998 - May 2001
  • Field of specialization

    • 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.
  • Publications

    • Sarah A. Saslow, Wooyong Um, Carolyn I. Pearce, Mark E. Bowden, Mark H. Engelhard,Wayne L. Lukens, Dong-Sang Kim, Michael J. Schweiger, and Albert A. Kruger,2018, “Cr(VI) Effect on Tc-99 Removal from Hanford Low-Activity Waste Simulant by Ferrous Hydroxide”, Environmental Science and Technology, 52, 11752-11759.
    • Won-Seok Kim, Sangsoo Han, Jinmo Ahn, and Wooyong Um, 2018, “Investigation of 3H, 99Tc, and 90Sr transport in fractured rock and the effects of fractured filling/coating material at LILW disposal facility”, Environmental Geochemistry and Health, 40(178), 1-15.
    • Mumtaz Khan, Wooyong Um, Won-Seok Kim, Jong Heo, HyunJu Kim, and Seeun Chang, 2018, “Synthesis of rhenium-doped tin dioxide for technetium radioactive waste immobilization”, Journal of Nuclear Materials, 505, 134-142.
    • Kenton Rod, Wooyong Um, Jaehun Chun, Ning Wu, Xialong Yin, Guohui Wang, and Keith Neeves, 2018, “Effect of chemical and physical heterogeneities on colloid-facilitated cesium transport”, Journal of Contaminant Hydrology, 213, 22-27.
    • Steven A. Luksic, Dong Sang Kim, Wooyong Um, Guohui Wang, Michael J. Schweiger, Chuck Z. Soderquist, Wyne Lukes, and Albert A. Kruger, 2018, “Effect of Technetium-99sources on its retention in low activity waste glass”, Journal of Nuclear Materials, 503, 235-244.
    • Jungjin Kim, Hyunju Kim, Won-Seok Kim, and Wooyong Um, 2018, “Dissolution of studtite [UO2(O2)(H2O)4] in various geochemical conditions”, Journal of Environmental Radioactivity, 189, 57-66.
    • Seeun Chang, Wooyong Um, Won-Seok Kim, and HyunJu Kim, 2018, “Effect of seawater intrusion on radioactive strontium (90Sr) sorption and transport at nuclear power plants”, RadiochimicaActa, 106 (2), 147-160.
    • Husnain Syed M., Wooyong Um, Woojin Lee, and Y-S Chang, 2018. “Magnetite-based adsorbents for sequestration of radionuclides: a review”, Royal Society of Chemistry Advances, 8, 2521-2540.
    • Won-Seok Kim, Seongsik Nam, Seeun Chang, HyunJu Kim, and Wooyong Um, 2018, “Removal of Chalk River Unidentified deposit (CRUD) radioactive waste by enhanced electrokinetic process”, Journal of Industrial and Engineering Chemistry, 57, 89-96.
    • Nicolas Perdrial, Angelica Vazquez-Ortega, Guohui Wang, Masa Kanematsu, Karl T. Mueller, Wooyong Um, Carl I. Steefel, Peggy O’Day, and Jon Chorover, 2018, “Uranium speciation in acid weathered sediments: the role of aging and phosphate amendments”, Applied Geochemistry, 89, 109-120.
    • Won-Seok Kim, Seongsik Nam, Seeun Chang, HyunJu Kim, and Wooyong Um, 2017, “Removal of Chalk River Unidentified deposit (CRUD) radioactive waste by enhanced electrokinetic process”, Journal of Industrial and Engineering Chemistry, Published online: 2017-08-13 | DOI: https://doi.org/10.1016/j.jiec.2017.08.011
    • Seeun Chang, Wooyong Um, Won-Seok Kim, and HyunJu Kim, 2017, “Effect of seawater intrusion on radioactive strontium (90Sr) sorption and transport at nuclear power plants”, Radiochimica Acta, Published Online: 2017-09-11 | DOI:https://doi.org/10.1515/ract-2016-2724
    • Guohui Wang, Wooyong Um, Zheming Wang, Estela Reinoso-Maset, Nicolas Perdrial, Nancy M. Washton1, Karl T. Mueller1, Peggy A. O’Day, and Jon Chorover. 2017, “Uranium Release from Acidic Weathered Hanford Sediments: Single-Pass Flow-Through Experiments”, Environmental Science and Technology, 51, 11011-11019.
    • Wooyong Um, Steven A. Luksic, Guohui Wang, Sarah Saslow, Dong-Sang Kim, Michael J. Schweiger, Chuck Z. Soderquist, Mark E. Bowden, Wayne W. Lukens, and Albert A. Kruger, 2017, “Enhanced 99Tc retention in glass waste form using Tc(IV)-incorporated Fe minerals”, Journal of Nuclear Materials, 495, 455-462.
    • Syed M. Husnain, Hyun Ju Kim, Wooyong Um, Y-Y. Chang, and Y-S. Chang. 2017, “Superparamagnetic adsorbent based on phosphonate grafted mesoporous carbon for uranium removal”, Industrial and Engineering Chemistry Research (I&EC research), 56, 821-9830
    • Sarah Saslow, Wooyong Um, Carolyn Pearce, Mark Engelhard, Mark Bowden, Wayne Lukens, Dong-Sang Kim, Michael J. Schweiger, and Albert A. Kruger, 2017, “Reduction and Simultaneous Removal of 99Tc and Cr by Fe(OH)2(s) Mineral Transformation”, Environmental Science and Technology, 52, 8635-8642.
    • Guohui Wang, Wooyong Um, Kirk J. Cantrell, Michelle M.V. Snyder, Mark E. Bowden, Mark B. Triplett, and Edgar C. Buck, 2017, “Effects of Hydrated Lime on Radionuclides Stabilization of Hanford Tank Residual Waste”, Chemosphere, 185, 171-177.
    • Jae-Young Pyo, Cheong Won Lee, Hwan-Seo Park, Wooyong Um, and Jong Heo. 2017, “Tellurite glasses for vitrification of technetium-99 from pyrochemical processing”, Journal of Nuclear Materials, 493, 1-5.
    • M. Ian Childers, Manh T. Nguyen, Kenton A. Rod, Phillip Koech, Wooyong Um, Jaehun Chun, Vassiliki-Alexandr Glezakou, Diana N. Tran, Timothy J. Roosendaal, Thomas W. Wietsma, Nicolas Huerta, Barbara Kutchko, and Carlos A. Fernandez. 2017, “Polymer- cement composites with self-healing ability for geothermal and fossil energy applications”, Chemistry of Materials, 29, 4708-4718.
    • H. Kim, Wooyong Um, W-S. Kim, and S. Chang. 2017.“Synthesis of tributyl phosphate-coated hydroxyapatite for selective uranium removal”, Industrial and Engineering Chemistry Research (I&EC research), 56, 3399-3406.
    • E. Reinoso-Maset, C.I. Steefel, Wooyong Um, J. Chorover, and P.A. O’Dday. 2017.“Rates and mechanisms of uranyl oxyhydroxide mineral dissolution”, Geochimica et Cosmochimica Acta, 207, 298-321.
    • Miae Kim, J.H. Song, Wooyong Um, N. Hyatt, S-K. Sun, and J.Heo. 2017.“Structure analysis of vitusite glass-ceramic waste forms using extended X-ray absorption fine structures”, Ceramics International, 43, 4687-4691.
    • Syed M. Husnain, Wooyong Um, Y-Y. Chang, and Y-S. Chang. 2017.“Recyclable superparamagnetic adsorbent based on mesoporous carbon for sequestration of radioactive cesium”, Chemical Engineering Journal, 308, 798-808.
    • Yang Guo, Jingwei Huang, Feng Xiao, Xiaolong Yin, Jaehun Chun, Wooyong Um, Keith B. Neeves, and Ning Wu. 2016,“Bean-based microfluidic sediment analogues: Fabrication and colloid transport”, Langmuir, 32(36), 9342-9350.
    • M-S. Lee, Wooyong Um, G Wang, AA Kruger, WW Lukens, R Rousseau, and V-A Glezakou. 2016.“Impeding 99Tc(IV) mobility in novel waste forms”, Nature Communication, 7:12067 | DOI: 10.1038/ncomms12067.
    • Senthil Kabilan, Hun Bok Jung, Andrew Kuprat, Anthon Beck, Tamas Varga, Carlos Fernandez, and Wooyong Um. 2016.“Numerical Simulation of Permeability Change in Wellbore Cement Fractures after Geomechanical Stress and Geochemical Reactions using X-ray Computed Tomography Imaging”, Environmental Science and Technology, 50, 6180-6188. DOI: 10.1021/acs.est.6b00159.
    • Smith Frances N., Wooyong Um, CD Taylor, D-S Kim, MJ Schweiger, and AA Kruger. 2016.“Computational investigation of Technetium(IV) incorporation into inverse spinels: Magnetite (Fe3O4) and Trevorite (NiFe2O4), Environmental Science and Technology, 50, 5216-5224. DOI: 10.1021/acs.est.6b00200.
    • Husnain Syed M., J-H Kim, C-S Lee, Y-Y Chang, Wooyong Um, and Y-S Chang. 2016.“Superparamagnetic nalidixic acid grafted magnetite (Fe3O4/NA) for rapid and efficient mercury removal from water”, Royal Society of Chemistry Advances, 6, 35825-35832. DOI: 10.1039/c5ra25927d.
    • Um W., KA Rod, HB Jung, and CF Brown. 2016.“Geochemical alteration of wellbore cement by CO2 or CO2+H2S reaction during long-term carbon storage” Journal of Greenhouse Gases: Science and Technology, 6, 1-14. DOI: 10.1002/ghg.1595.
    • Carroll, Susan, J. William Carey, David Dzombak, Nicolas J. Huerta, Li Li, Tom Richard, Wooyong Um, Stuart D. C. Walsh, and Liwei Zhang. 2016.“Review: Role of Chemistry, Mechanics, and Transport on Well Integrity in CO2 Storage Environments.”International Journal of Greenhouse Gas Control, 49, 149?60. doi:http://dx.doi.org/10.1016/j.ijggc.2016.01.010.
    • Um W., J-S Yang, RJ Serne, and JH Westsik Jr. 2015.“Reductive capacity measurement of waste forms for secondary radioactive wastes”, Journal of Nuclear Materials, 467, 251-259.
    • Smith Frances N., CD Taylor, Wooyong Um, and AA Kruger. 2015.“Technetium incorporation into goethite (α-FeOOH): An atomic-scale investigation”, Environmental Science and Technology, 49, 13699-13707.
    • Khan Mumtaz and Wooyong Um. 2015.“Liquid scintillation counting methodology for 99Tc analysis: A remedy for radiopharmaceutical waste”, Anal. Chem. 87. 9054-9060.
    • Shao Hongbo, Senthil Kabilan, Sean Stephens, Niraj Suresh, Anthon N. Beck, Tamas Varga, Paul F. Martin, Andrew Kuprat, Hun Bok Jung, Wooyong Um, Alain Bonneville, David J. Heldebrant, Kenneth C. Carroll, Joseph Moore, and Carlos A. Fernandez. 2015.“Environmentally friendly, rheoreversible, hydraulic-fracturing fluids for enhanced geothermal systems”, Geothermics, 58, 22-31.
    • Cho SungHoon, DuckKun Hwang, Wooyong Um, Dae Hee Son, and Kyeongseok Oh. 2015.“Sludge reduction by H2O2 oxidation with Fe/MgO catalyst”, Water Environment Research, 87(8), 675-682.
    • 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.
    • 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 carbonateon 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 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.
    • 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.
  • 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.