A Coupled model for ERT monitoring of contaminated sites

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Wang, Yuling^1 ; Zhang, Bo^1 ; Gong, Shulan^1 ; Xu, Ya^2

Department of Information and Electrical Engineering, Shandong Jianzhu University, Jinan

250101, China^1

Chinese Research Academy of Environmental Sciences, Beijing

100012, China^2

关键词: Contaminated sites;    Electrical resistivity tomography;    Monitoring models;    Monitoring results;    Numerical simulation studies;    Pollution regions;    Resistivity distributions;    Resistivity modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/3/032013/pdf
DOI  :  10.1088/1755-1315/121/3/032013

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The performance of electrical resistivity tomography (ERT) system is usually investigated using a fixed resistivity distribution model in numerical simulation study. In this paper, a method to construct a time-varying resistivity model by coupling water transport, solute transport and constant current field is proposed for ERT monitoring of contaminated sites. Using the proposed method, a monitoring model is constructed for a contaminated site with a pollution region on the surface and ERT monitoring results at different time is calculated by the finite element method. The results show that ERT monitoring profiles can effectively reflect the increase of the pollution area caused by the diffusion of pollutants, but the extent of the pollution is not exactly the same as the actual situation. The model can be extended to any other case and can be used to scheme design and results analysis for ERT monitoring.