Proceedings of the Korean Society of Soil and Groundwater Environment Conference (한국지하수토양환경학회:학술대회논문집)
- 2006.04a
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- Pages.407-410
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- 2006
Application of activated carbon bugs to the dye tracer study in a Karst area
- Hwang Hyeon-Tae ;
- Lee Myeong-Jae ;
- Choi Ye-Gwon ;
- Mok Jong-Gu ;
- Lee Jin-Yong ;
- Kim Yong-Cheol ;
- Yeom Byeong-U
- 황현태 (지오그린21(주)) ;
- 이명재 (지오그린21(주)) ;
- 최예권 (지오그린21(주)) ;
- 목종구 (지오그린21(주)) ;
- 이진용 (지오그린21(주)) ;
- 김용철 (한국지질자원연구원) ;
- 염병우 (한국지질자원연구원)
- Published : 2006.04.01
Abstract
Studies were performed on evaluating the applicability of activated carbon bugs on dye tracer tests as tracer detectors by using its adsorption isotherm of the grained activated carbon. We preliminary conducted several standard adsorption and extraction tests and obtained the relationship between standard dye solution and detected concentrations from activated carbon samples in dry and wet conditions. the slopes of the regression line were 0.71 for wet condition and 0.74 for dried one. Field dye tracer tests were performed in a karst area, where several faults occur along a stream and pass the test area. We sampled water samples and activated carbon samples at three points in Hwangji Pond, where groundwater outflows from the karst conduit. According to the results of breakthrough curve analysis, the regional flow along the conduit, which is assumed to cause a karst conduit, was estimated as 0.18 m/day. The relationship between the concentrations of water sample and extracted activated carbon bugs shows the similar slopes with those from standard solution tests. This suggests that activated carbon could be useful as a dye tracer detector because the extraced concentration can be quantified.