文献类型：会议论文

中文题名：Effective Theoretical Model for Electric Leak Location at Landfill

作者：YANG Ping;WANG Yanni;LI Jinping;WANGQi

第一作者：杨萍

机构：[1]School of Information,Beijing Union University,Beijing 100101,China;[2]Chinese Research Academy of Environmental Science,Beijing 100012,China;

第一机构：北京联合大学智慧城市学院

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

会议日期：20090602

会议地点：上海

主办单位：中国环境科学学会

语种：英文

中文关键词：landfill;leakage;detection;model

摘要：To solve the disability of conventional model used in electrical leak location when measurement electrodes were buried under the liner, a new model of high voltage DC leak detection is developed. In the model a hole in a thin dielectric sheet is represented by a current source and a sink on opposite sides of the sheet. Such a configuration is analyzed by using poisson equation. And the integral equation is arrived by superimposing the primary potential and the secondary potential. To identify the validity of the model and locate the leak in the geomembrane liner, experiments for detecting leaks above the liner and below the liner were carried out respectively at a small scale geomembrane lined facility. Excellent agreement between experimental data and simulated model data shows the model is accurate in predicting leak signatures and suggests the solution may be useful to model field data acquired in landfill.