膜界面探测器在工业污染场地调查中的应用

膜界面探测器是一项采用直接推进技术,可实时提供场地地下挥发性有机物近乎连续分布信息的直接感测工具。以某历史上从事有机氯农药生产的废弃工业场地为例,运用该技术,配置土壤电导率传感器、电子捕获检测器以及氢火焰离子化检测器,对该场地中潜在污染区域进行快速筛选调查,初步确定了土壤和地下水中挥发性有机物污染的热点区域及其三维分布和地层信息,为后续进一步调查方案优化、场地概念模型建立及后续修复方案设计等提供了重要的信息。

Membrane Interface Probe and Its Use in Contaminated Site Investigation

The membrane interface probe (MIP) is a direct push,real time and direct sensing tool that provides near continuous data on the distribution of volatile organic compounds (VOCs) in the subsurface.A geoprobe equipped with electrical conductivity (EC),electronic capture detector (ECD),and flame ion detector (FID) was used for the MIP survey at the potential areas of environmental concern at a brownfield site,which was previously involved in the manufacturing of organochlorine pesticides.The MIP system was successfully in horizontal and vertical delineation of the soil and groundwater total VOCs at the study site,which provided valuable information on subsurface lithology and VOCs distribution for the conceptual site model development,and design of the further site delineation and remediation.