Mobilizing Residual Nonaqueous-Phase Residual Contamination Using Pressure-Pulse Technology

机译：使用压力脉冲技术调动残留的非水相残余污染

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A small electrical substation in the Northeastern United States operated from 1925 until 1985 when it was decommissioned and all electrical equipment removed, leaving a level, gravel-covered surface and concrete pads. The pads supported transformers and electrical equipment containing dielectric fluid that leaked into the subsurface. Testing indicated that the mineral oil-based dielectric fluid was a light nonaqueous-phase liquid (LNAPL) with a specific gravity of 0.90. The dielectric fluid served as a heat moderating medium that contained polychlorinated biphenyls (PCBs). Groundwater monitoring wells installed in 1996 as part of a site investigation displayed varying thicknesses of LNAPL. PCB concentrations in the LNAPL measured 1.1, 163, 214, and 328 mg/kg.

机译：美国东北部的一个小型电动变电站于1925年，直到1985年运营，当时退役，所有电气设备都拆除，留下水平，砾石覆盖的表面和混凝土垫。焊盘支撑了滤波器和电气设备，其介电流体泄漏到地下。测试表明，矿物油基介电流流体是光非水相液（LNAPL），比重为0.90。介电流体用作包含多氯联苯（PCB）的热调节介质。 1996年安装的地下水监测井是现场调查的一部分显示的LNAPL厚度。 LNAPL中的PCB浓度测量1.1,163,214和328mg / kg。

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《International Conference on Remediation of Chlorinated adn Recalcitrant Compounds》|2008年||共12页
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Steven E. Panter;
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中图分类环境污染及其防治;
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Mobilizing Residual Nonaqueous-Phase Residual Contamination Using Pressure-Pulse Technology

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