摘要
采用氯化钠作示踪剂在罗锦响水岩地下河开展示踪试验,以AgNO3标准溶液滴定检测。根据回收率的大小判断天井洞地下河是马冲—源头地下河系统的唯一通道;但在投放点(响水岩)与天井洞接收点之间地下河局部存在几个小溶潭。此外,本次示踪试验在天井洞地下河布置在线监测仪进行示踪离子检测,将检测结果与人工取样检测的结果进行分析比较,结果表明在线监测仪器在示踪试验回收率计算及示踪剂到达时间的判断上具有明显的优势。
A tracing test of karst groundwater was carried out in the Xiangshuiyan subterranean stream in Luojin. NaCl was adopted as the tracer and titrated with a standard AgNO3 solution. The resulting recovery rates indicate that the Tianjingdong subterranean stream is the only channel connecting the Machong and Yuantou subterranean streams, but there are several small ponds obstructing groundwater flow from the Xiangshuiyan subterranean stream, the dropping point of the NaCl, to the Tianjingdong subterranean stream, the recovery point of the NaCl. An online monitor was set up in the Tianjingdong subterranean stream to monitor NaCI. The monitoring results were compared with the examination results of manual sampling, showing that the online monitor more accurately calculates the recovery rate and judges the arrival time of the tracer.
出处
《水资源保护》
CAS
2009年第2期75-78,共4页
Water Resources Protection
基金
科技部"973"项目(2006CB202401)
关键词
示踪试验
在线监测仪
相关性分析
地下河
罗锦
tracing test
online monitor
correlation analysis
subterranean stream
Luojin
