1. Resources Utilization Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), 124 Gwahak-ro, Yuseong-gu, Daejeon 34132, Republic of Korea
2. Resource Engineering, University of Science Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
3. Resource Recirculation Technology Research Center, Sudokwon Landfill Site Management Corporation (SLC), Incheon 22688, Republic of Korea