Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Department of Geotechnical Engineering, Tongji University, Si Ping Road 1239, Shanghai, 200092, China.
Environ Sci Pollut Res Int. 2017 Sep;24(25):20811-20817. doi: 10.1007/s11356-017-9853-0. Epub 2017 Aug 9.
Leachate is a polluting liquid which may cause harmful effects on human health or the environment without a tightly control manner. The leachate management is an important part of the design and operation of bioreactor landfills. To detect the leachate distribution in Laogang Landfill, China, the measurement of electrical resistivity tomography (ERT) was carried out in three areas with different ages. ERT method proved to be an effective non-invasive geophysical method in bioreactor landfills, and the physical properties of waste samples obtained by boreholes were tested in a laboratory. The correlation between the resistivity and the moisture content was described by Archie's law. The result shows that the moisture content of fresh waste is inhomogeneous, while that of aged waste increases with depth. A pseudo 3D model of the moisture content was proposed to improve the understanding of leachate distribution and exhibit the accuracy of the ERT method.
渗滤液是一种污染液体，如果没有严格的控制方式，可能会对人类健康或环境造成有害影响。渗滤液管理是生物反应器填埋场设计和运行的重要组成部分。为了检测中国老港垃圾填埋场渗滤液的分布情况，在三个不同年龄的区域进行了电阻率层析成像（ERT）测量。ERT 方法被证明是生物反应器填埋场中一种有效的非侵入性地球物理方法，通过钻孔获得的废物样本的物理性质在实验室中进行了测试。通过阿尔奇定律描述了电阻率与含水量之间的相关性。结果表明，新鲜废物的含水量不均匀，而老化废物的含水量随深度增加而增加。提出了一个伪 3D 含水量模型，以提高对渗滤液分布的理解，并展示 ERT 方法的准确性。
