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Characteristics of Seepage Water and Groundwater in Incheon Coastal LPG Storage Cavern  

Jo, Yun-Ju (Department of Geology, Kangwon National University)
Lee, Jin-Yong (Department of Geology, Kangwon National University)
Choi, Mi-Jung (GeoGreen21 Co, Ltd.)
Cho, Byung-Wook (Operation and Technical Service Team, E1 Corporation)
Publication Information
The Journal of Engineering Geology / v.20, no.1, 2010 , pp. 1-12 More about this Journal
Abstract
The objective of this study was to examine the hydrogeochemical and microbiological characteristics for stable maintenance of coastal LPG storage cavern. Cavern seepage water and groundwater in the vicinity of the LPG storage cavern were sampled and analyzed (February, May, August and October 2007). Groundwater samples of propane cavern showed high pHs of 8.1~12.4 due to dissolution of cement grouting materials that had been applied during the well and cavern construction. The EC values showed distinctive seasonal variation. The negative ORP indicated reduced condition. The seepage and surrounding groundwater are classified as Na-Cl type, which represents seawater effects. All of aerobic bacteria, anaerobic bacteria, slime forming bacteria and sulfate reducing bacteria were less than 500 CFU/mL, which indicated that there was no abrupt increase of bacteria in the cavern. Therefore there exist no hydrochemical symptoms to indicate unstable conditions of the cavern operation. However, regular and continuous monitoring is essentially required.
Keywords
underground storage cavern; water curtain system; seepage water; groundwater; bacteria;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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