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Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
Preparation and evaluation of new reference materials for naturally occurring radioactive materials (NORM): Zirconium
JuHyun Lee1, Yong-Jae Kim2, Jung-Seok Chae2
1NORM Safety Center, Korea Institute of Nuclear Safety (KINS), Daejeon, 34142, Republic of Korea; Department of Chemical Engineering, Hanyang University, Seoul, 04763, Republic of Korea.
Abstract:
New reference materials (RMs), zirconium silicate, bauxite and phosphogypsum, were produced and characterized according to an ISO guide. The homogeneity of the three RMs was evaluated using X-ray fluorescence (XRF), and characterizations of the three candidate materials were performed through a collaborative study with nine expert radioanalytical laboratories. The assigned radionuclides are 230Th, 232Th, 234U, 235U, and 238U for zirconium silicate; 230Th, 232Th, 234U, and 238U for bauxite; and 226Ra, 230Th, 234U, and 238U for phosphogypsum.
