Application of Dipole Method in Landfill’s Leak Detection and Location

摘要：

Geomembrane liners are needed in Landfills to prevent contamination. They take effect only when they are physically integrated. A dipole method was advanced to be used to detect and locate leaks in geomembrane liners prior to the introduction of the waste materials. This method makes use of the high electrical resistivity of the geomembrane liner material. When no leaks are present, a voltage impressed across the liner produces a very low current flow. The low current density produces a relatively uniform voltage potential distribution in the material above the liner. A leak in the geomembrane liner provides a conductive path for current flow, which produces an increase in the current density at the leak point. The localized current density causes an anomaly in the measured potential in the vicinity of the leak. Therefore, leaks can be located by measuring the potential distribution patterns in the material covering the liner. This method can inspect 100% of the geomembrane liners. The holes with minimum diameter 6 mm can be detected and located.

关键词： landfill leak detection and location dipole method high-density polyethylene material

作者: GUAN Shaopeng NAI Changxin DONG Long WANG Yanwen

作者单位: School of Mechanical Electronic & Information Engineering,China University of Mining & Technology,Be Research Institute of Solid Waste Management,Chinese Research Academy of Environmental Sciences,Beij School of Mechanical Electronic & Information Engineering,China University of Mining & Technology,Be

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 2077-2079

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）