1. Research Scientist, Sequestration Research Dept., Korea Institute of Geosciences and Mineral Resources, 124 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea; and Dept. of Resources Recycling, Univ. of Science and Technology, 113 Gwahang-no, Yuseong-gu, Daejeon 305-333, Korea.
2. Research Scientist, Sequestration Research Dept., Korea Institute of Geosciences and Mineral Resources, 124 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea.
3. Research Fellow, Sequestration Research Dept., Korea Institute of Geosciences and Mineral Resources, 124 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea.
4. Research Scientist, Sequestration Research Dept., Korea Institute of Geosciences and Mineral Resources, 124 Gwahang-no, Yuseong-gu, Daejeon 305-350, Korea (corresponding author).