100490 Spatio-Temporal Soil CO2 Flux after Artificial CO2 Release in Korea.

Poster Number 473-301

See more from this Division: SSSA Division: Soils and Environmental Quality
See more from this Session: Soils and Environmental Quality Poster III

Wednesday, November 9, 2016
Phoenix Convention Center North, Exhibit Hall CDE

Hyunjun Kim, BK21 Plus Eco-Leader Education Center, Korea University, Seoul, REPUBLIC OF KOREA, Hyeon Min Yun, Department of Environmental Science & Ecological Engineering, Graduate School, Korea University, Seoul, Korea, The Republic of, Seongjun Kim, Korea University, Korea University, Seoul, REPUBLIC OF KOREA, Seung Hyun Han, Department of Environmental Science and Ecological Enginerring, Korea University, Seoul, Korea, The Republic of and Yowhan Son, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, Korea, The Republic of
Poster Presentation
  • 2016_SSSA_Hyunjun Kim.pdf (1.2 MB)
  • Abstract:
    Abstract Carbon capture and storage (CCS) is a technical process to capture CO2 from industrial and energy-based sources, transfer and sequestrate impressed CO2 in geological formations, oceans, or mineral carbonates. However, potential CO2 leakage may exist and cause environmental problems. This study was conducted to evaluate the monitoring and detection system by analyzing the spatial and temporal variation of soil CO2 flux after artificial CO2 release in Korea. The unsaturated Environmental Impact Evaluation Test Facility was built in Eumsung, Korea in 2014. The artificial CO2 release experiment was carried out from 26 to 30 October 2015. Soil CO2 flux at the surface was measured at 0m, 1.5m, 2.5m, and 15m from the CO2 releasing well using an automated soil CO2 flux system, and soil CO2 concentrations at 15cm, 30cm, and 60cm depths were obtained at every 0m, 1.5m, 2.5m, 5m, and 10m distances from the well using a portable gas analyzer. Soil CO2 leakage signal was shown as 38.4% at 60cm depth at 0m from the well after 2 days. Soil CO2 was leaked more widely, and detected up to 5m away from the well at all depths after 5 days. Soil CO2 flux was measured up to 89% at 60cm depth at 0m from the well, followed by 30cm depth (82.5%) and 15cm depth (55.4%) at the same distance. On the other hand, soil CO2 leakage at the surface was found at 0m distance from the well after 4 days, and increased over 9 days even though the artificial CO2 release stopped. The spatial and temporal information considering the CO2 flux after artificial CO2 release can be obtained from the current study, which is valuable for demonstrating the monitoring system to detect CO2 leakage.

    Acknowledgement This study is the part of the project entitled “Korea CO2 Storage Environment Management Research Center (K-COSEM) – Project No. 2014001810002” funded by the Ministry of Environment (MOE), Republic of Korea.

    Keywords: Carbon capture and storage, Detection system, Geochemical monitoring technique, Leakage, Soil CO2 flux

    See more from this Division: SSSA Division: Soils and Environmental Quality
    See more from this Session: Soils and Environmental Quality Poster III