Development of a Test for Determining the Leachate Dispersion Rate in Soil Using Fiber Optics

本研究的目的是利用光纤确定渗滤液在土壤中的扩散速率。将各种光纤化学传感器嵌入饱和砂样品中，将其放入改良的实验室渗透仪中，以确定光纤传感器是否可用于测量盐水渗滤液的分散速率。如果试验成功，这将是一种快速且相对便宜的方法，可用于测量土壤中的分散速率。在许多传递时间预测模型中使用分散率来确定渗滤液通过粘土衬里渗透的时间，并估计固体废物填埋场等应用中粘土衬里的厚度。

The objective of this research is to determine leachate dispersion rates through soils using fiber optics. Various fiber optic chemical sensors will be embedded into saturated sand samples which are placed into a modified laboratory permeameter to determine if fiber optics sensors can be used to measure the dispersion rate of a saltwater leachate. If test proves successful it will be a quick and relatively inexpensive procedure available for measuring dispersion rates in soils. The dispersion rate is used in many transit time prediction models to determine the time for leachate to permeate through clay liners and to estimate the thickness of a clay liner in applications such as solid waste landfills.