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Simple Chloride Sensors for Continuous Groundwater Monitoring

机译：简单的氯化物传感器，用于连续的地下水监测

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摘要

The development of chloride sensors which can be used for continuous, on-line monitoring of groundwater could be very valuable in the management of our coastal water resources. However, sensor stability, drift, and durability all need to be addressed in order for the sensors to be used in continuous application. This study looks at the development of a simple, inexpensive chloride electrode, and evaluates its performance under continuous use, both in the laboratory and in a field test in a monitoring well. The results from the study showed a consistent response to changing chloride concentrations over longer periods. The signal was seen to be stable, with regular drift in both laboratory and field test. In the field application, the sensor signal was corrected for drift, and errors were observed to be under 7% of that of conductivity measurements. The study also found that the chloride sensor remained responsive even at low chloride concentrations, where the conductivity electrode was no longer responding to changing chloride levels. With the results, it is believed that the simple chloride sensor could be used for continuous monitoring of groundwater quality.
机译：可用于连续在线监测地下水的氯化物传感器的开发对我们沿海水资源的管理非常有价值。但是，传感器的稳定性，漂移和耐用性都需要解决，以便传感器可以连续使用。这项研究着眼于一种简单，廉价的氯化物电极的开发，并评估了其在实验室和监测井中的连续使用下的性能。该研究的结果表明，在较长时期内，对不断变化的氯化物浓度具有一致的响应。信号被认为是稳定的，在实验室和现场测试中都有规律的漂移。在现场应用中，对传感器信号进行了漂移校正，观察到的误差低于电导率测量值的7％。该研究还发现，即使在低氯化物浓度下，电导率电极不再响应变化的氯化物水平，氯化物传感器仍保持响应。结果表明，简单的氯化物传感器可用于连续监测地下水质量。

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  • 来源
    《Ground Water Monitoring & Remediation》 |2012年第2期|p.40-47|共8页
  • 作者

    Paul Thorn; John Mortensen;

  • 作者单位

    Department of Environmental, Social and Spatial Change,Roskilde University, Box 260, Universitetsvej 1, 4000 Roskilde;

    Department of Science, Systems and Models, Roskilde University,Box 260, Universitetsvej 1, 4000 Roskilde;

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