Geoelectrical mapping of the Soil and Groundwater Contaminated Site: Case Study from Taiwan
in recent years, geophysical technology has been widely used in soil and groundwater investigation and remediation of contaminated sites assessments in Taiwan, such technology can securely work in either small or large sampler areas, and collect data from the traditional one-dimensional data to two-dimensional and three-dimensional data.In other words, geophysical technology helps provide more information to assist the data interpretation, and improves the overall effectiveness of soil and groundwater contamination surveys.Electrical Resistivity Tomography (ERT) is one of useful geophysical technology to the soil and groundwater contaminated sites.By estimating the groundwater flow direction and distribution of contaminations, we could establish monitoring or sampling wells in potential pollution areas.ERT survey could delineate the contaminated areas with high concentrations in relatively simple sites.Even in the seriously DNAPL leakage cases, it is possible to directly detect the DNAPL pool.In this study, we presented the investigation outcomes of electrical resistivity tomography (ERT) and ground-penetrating radar (GPR) at the DNAPLs-impacted site.Evaluation of ERT/GPR technique deployment in detecting buried DNAPLs and assessment of remediation efforts are also discussed.Results indicated zones with anomalously high resistivity to be associated with contaminated DNAPLs presence.Resistivity maps clearly outlined the subsurface distribution and the possible migration path of DNAPLs.
case study ERT DNAPL
Hsin-Chang LiuChih-PingLin Chieh-Hou Yang Tzu-Ping Wang
Natural Hazard Prevention and Water Environment Research Center National Chiao Tung University Hsinc Earth Sciences and Graduate Institute of Geophysics National Central University Taoyuan, Taiwan
国际会议
北京
英文
408-411
2016-06-27（万方平台首次上网日期，不代表论文的发表时间）