| SF6在地下水应用中的研究现状 |
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| 关键词:SF6 groundwater tracer |
| 基金项目:国家自然科学基金项目“年轻地下水SF6测年技术及其应用”(编号:40372112) |
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| Advances in the Study of Applying Sulpher Hexafluoride(SF_6) in Groundwater |
| Sulpher hexafluoride (SF6) is an odorless, non-toxic and inert gas, with no toxic effects on human bodies and environments. It appears to be resistant to biodegradation and is not significantly adsorbed on organic matter or obviously degraded under highly reducing conditions. Currently SF6 concentration in the atmosphere is growing by about 7%, and the test technology of SF6 in the atmosphere and groundwater has been achieved with the relatively simple analytical and sampling process. SF6 is considered to be a new potential tracer in groundwater, which can well describe groundwater movement and runoff mechanism, date groundwater retention time and flow rate and explain groundwater cycle and mixing process. It will surely play an increasingly important role in groundwater studies. However, the research on SF6 is still in the initial stage in China. In order to actualize SF6 application in groundwater, it is necessary to establish long-term atmospheric SF6 observation stations. The utilization of various tracers to resolve scientific problems in groundwater is one of the trends in further researches. |
| LI Xiao-qian,Zhou Ai-guo,ZHANG Jun-gang,GAN Yi-qun,LI Jing-jing,LIU Cun-fu,CAI He-sheng.2008.Advances in the Study of Applying Sulpher Hexafluoride(SF_6) in Groundwater[J].Acta Geoscientica Sinica,29(5):665-670. |
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