제목	J. Kang, T. Levitskaia, W. Um, "Iodine (I- and IO3-) Sequestration and Removal by CoAl and NiAl Layered Double Hydroxides", Presented in the Clay Minerals Society, Virtual, Washington, USA, October 18-23, 2020
J. Kang, T. Levitskaia, W. Um, "Iodine (I- and IO3-) Sequestration and Removal by CoAl and NiAl Layered Double Hydroxides", Presented in the Clay Minerals Society, Virtual, Washington, USA, October 18-23, 2020

번호	제목
109	Byoungkwan Kim, Younglim Shin, Jaehyuk Kang, and Wooyong Um, “Structural Evolution of Phosphate-Based Geopolymer Waste Forms Containing Radioactive Borate Waste”, Presented in Korean Nuclear Society Conference, Changwon, South Korea, October 20-22, 2021.
108	) H. Kim, W. Um, A Study on the Removal of Tritium in Radioactive Wastewater Using the Chemical Affinity Quantum Sieve Effect of Fluorine, Presented in 2021 Joint Conference of the Geological Science & Technology of Korea, June 23-24, 2021
107	Seokju Hong, Seongsik Nam, and Wooyong Um, “Decontamination of Neutron-Activated Concrete Waste by Dense Medium Separation”, Presented in 2021 Joint Conference of the Geological Science & Technology of Korea, June 23-24, 2021
106	J. Jeon, W. Um, "Development of Heterostructure P-doped Co9S8@MoS2 for Efficient Tri-butyl Phosphate Degradation", Presented in the Korean Radioactive Waste Society, Hybrid conference, South Korea, June 2-4, 2021
105	H. Kim, B. K. Singh, W. Um, "Chemical Affinity Quantum Sieving Effect of Fluorine for Isotopic Separation of Tritium From Radioactive Wastewater", Presented in the Korean Radioactive Waste Society, Hybrid conference, South Korea, June 2-4, 2021
104	S. Hong, W. Um, "Synthesis of Pollucite Using Korean Natural Zeolite at Temperature Below 100℃", Presented in the Korean Radioactive Waste Society, Hybrid conference, South Korea, June 2-4, 2021
	J. Kang, T. Levitskaia, W. Um, "Iodine (I- and IO3-) Sequestration and Removal by CoAl and NiAl Layered Double Hydroxides", Presented in the Clay Minerals Society, Virtual, Washington, USA, October 18-23, 2020
102	J. Kim, J. Kang, W. Um, "Simultaneous Removal of Both Cesium and Iodate using Prussian Blue Functionalized Layered Double Hydroxides (PB-LDH)", Presented in the Clay Minerals Society, Virtual, Washington, USA, October 18-23, 2020
101	S. Hong, W. Um, "Hydrothermal synthesis of pollucite below 100 degrees for Cs immobilization", Presented in the Clay Minerals Society, Virtual, Washington, USA, October 18-23, 2020
100	S. Isa, S. Kwon, B. K. Singh, H. Kim, W. Um, "Mercury (II) Removal From Aqueous Solution Using Sulfur-Functionalized Biochar", Presented in the Korean Radioactive Waste Society, Online conference, South Korea, December 9-11, 2020
99	M. Aamir Hafeez, J. Jeon, J. Park, W. Um, "Sulfate Radical Advance Oxidation Process for Degradation of Spent Resin", Presented in the Korean Radioactive Waste Society, Online conference, South Korea, December 9-11, 2020
98	B. Kim, J. Lee, J. Kang, Y. Shin, W. Kim, W. Um, "Solidification of borate waste using metakaolin-based geopolymer waste form", Presented in the Korean Radioactive Waste Society, Online conference, South Korea, December 9-11, 2020
97	J. E. Kang, J. Lee, J. M. Lee, I. Song, W. Kim, "Applying AOPs to illite for efficient cesium removal in liquid waste", Presented in the Korean Radioactive Waste Society, Online conference, South Korea, December 9-11, 2020
96	S. Park, S. Han, W. Um, "Solubility of Tc-99 with various conditions in the Wolsung repository site, South Korea", Presented in the Korean Radioactive Waste Society, Online conference, South Korea, December 9-11, 2020
95	J. Kim, B. Kim, B. K. Singh, W. Um, "Homogeneity Test of Cesium and Cobalt Loaded Ion Exchange Resins in Polymer Waste Form", Presented in the Korean Radioactive Waste Society, Online conference, South Korea, December 9-11, 2020