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首页> 外文期刊>Review of Scientific Instruments >Experimental infrared measurements for hydrocarbon pollutant determination in subterranean waters
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Experimental infrared measurements for hydrocarbon pollutant determination in subterranean waters

机译：用于确定地下水中碳氢化合物污染物的实验红外测量

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摘要

Subterranean waters are often polluted by industrial and anthropic effluents that are drained in subsoil. To prevent and control pollution, legislations of different developed countries require an online monitoring measurement, especially for detecting organic solvents (chlorinated and unchlorinated ones). Online measurements include both real-time and no real-time measurements. In general, it is difficult to implement real-time measurements in stricto sensu for online acquisitions on aqueous effluents since they need to be processed by a modeling. This research presents an experimental measurement system based on infrared (IR) spectroscopy for aqueous effluents containing hydrocarbons and capable of displaying excellent values of pollutant concentrations even in instable conditions; the system is able to detect pollutants either in laminar or turbulent flow. The results show the possibility of avoiding the use of “Pitot tube” that is employed to create a stagnation point in order to convert kinetic energy into potential one. This conversion allows the transformation of a turbulent flow in a laminar flow making easy measurement of pollutants included in an aqueous effluent. Obviously, “Pitot tube” is also used for other fluid effluents. The obtained results have been compared with those produced by means of sophisticated IR instrumentation for laboratory applications.
机译：地下水经常被排入地下的工业和人类污水污染。为了预防和控制污染，不同发达国家的法规要求进行在线监测，尤其是检测有机溶剂（氯化和非氯化溶剂）时。在线测量包括实时测量和不包括实时测量。通常，很难对在线废水的在线采集进行严格的实时测量，因为它们需要通过建模进行处理。这项研究提出了一种基于红外（IR）光谱的实验测量系统，用于测量含有碳氢化合物的废水，即使在不稳定的条件下也能显示出色的污染物浓度值；该系统能够检测层流或湍流中的污染物。结果表明，有可能避免使用“皮托管”（Pitot tube）来产生停滞点，以便将动能转化为势能。这种转换允许湍流转变成层流，从而易于测量含水废水中的污染物。显然，“皮托管”也用于其他流体流出物。将获得的结果与通过用于实验室应用的复杂红外仪器产生的结果进行了比较。

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