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首页> 外文会议>International Conference on Remediation of Chlorinated and Recalcitrant Compounds >Case Study of Karst Site in Kentucky: Bedrock Remediation of PCE
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Case Study of Karst Site in Kentucky: Bedrock Remediation of PCE

机译：凯斯特喀斯特遗址的案例研究：基于PCE的基岩修复

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Background/Objectives. The former dry cleaner is located in within the Inner Bluegrass physiographic region of Kentucky with underlying bedrock consisting of Ordovician Limestone medium light gray with abundant fossils. Bedrock is between 10 and 20 feet below ground surface and the overburden is mainly clay to a silty clay residuum. PCE contamination is within in the overburden and epi-karst and concentrations initially ranged from 0.4 mg/L to 87 mg/L in the groundwater and a high of 169,000 mg/kg at the soil bedrock interface with most ranging from <1 mg/kg to 500 mg/kg. Remediation has included SVE, in-situ chemical oxidation, and recently injection of zerovalent iron impregnated carbon slurry. The SVE and ICSO were not effective in reducing groundwater concentrations within the bedrock. The remediation team designed bedrock groundwater sampling to define horizontal and vertical PCE concentrations by discretely sampling fracture zones. The additional data allowed for discrete injections at intervals that (1) had connectivity and (2) were most contaminated.
机译：背景/目标。前干净的清洁剂位于肯塔基州内部蓝色的蓝洁会园内，底层基岩由奥陶艺术师石灰石中浅灰色，具有丰富的化石。基岩在地面10到20英尺之间，覆盖层主要粘土到粉质粘土残余物。 PCE污染在覆盖层内，延伸率和EPI-karst和浓度最初在地下水中的0.4mg / l至87mg / l，土壤基岩界面的高度为169,000 mg / kg，大多数为<1 mg / kg到500毫克/千克。修复包括SVE，原位化学氧化，最近注入Zeropalent铁浸渍碳浆料。 SVE和ICSO无效地减少基岩内的地下水浓度。修复团队设计了基岩地下水采样，通过离散采样骨折区域来定义水平和垂直的PCE浓度。允许的附加数据以间隔（1）具有连接和（2）的间隔污染。

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