Detecting the leakage of testing landfill by using geoelectrical methods

• Main Authors: Yu-Iun Shi, 石宇倫
• Other Authors: 游峻一
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/74221544901316517446

碩士 === 健行科技大學 === 空間資訊與防災研究所 === 101 === Both leakage current method and electrical resistivity tomography were applied to investigate the testing waste landfill site to monitor the most frequently occurring leachate leakage problems. The current way for monitoring landfill leachate leakage only limited on the installation of the upstream and downstream monitoring wells. However, there is no immediate system for leachate leakage monitoring. Therefore, this study used geoelectrical methods to monitor the completeness of the high-density polyethylene (HDPE), which shows it had reach immediate monitoring and while collecting facts for follow up damage repair. In order to simulate the leakage situation in the waste landfill site we made many breakages and compared the results of both leakage current method and electrical resistivity tomography method. The leakage current method showed immediate and efficient monitoring result. By changing the interval of electrodes, the locations of breakage can be defined more exactly. The electrical resistivity tomography showed a better result by using Wenner-Schlumberger array for waste landfill sites. The results can significantly define the depth of the HDPE and the high risk areas. Combining these two methods can provide more information about the landfill leakage problems.