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Modeling natural attenuation of chlorinated solvent plumes at dover air force base area-6 site

机译：模拟多维尔空军基地6区的氯化溶剂羽流的自然衰减

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A multi-dimensional, multi-species reactive transport code, RT3D, was used to aid in the analysis of natural attenuation design at the Dover AFB Area-6 site. The RT3D code is a general-purpose numerical solver that can be used to solve any type of reactive transport systems by specifying a system-specific reaction model (Clement, 1997; Clement et al., 1998). In this study, a detailed biochemical reaction model was developed to simulate all aerobic and anaerobic reactions that occur at the Dover AFB site. The reactions were integrated into RT3D and the resulting numerical code was used to simulate the bioreactive transport occurring at the site. Through a model calibration process, field-scale decay rates of PCE/TCE and their degradation products were estimated. The calibrated model successfully recreated the observed distribution of PCE, TCE, DCE, VC and chloride plumes. A detailed sensitivity analysis of the calibrated model was also performed to study the uncertainties associated with the model parameters. The simulation model devleoped in this work is a useful framework for analyzing chlorinated-solvent natural attenuation data.
机译：多维，多物种反应性运输代码RT3D用于帮助分析Dover AFB Area-6站点的自然衰减设计。 RT3D代码是通用的数值求解器，可通过指定系统特定的反应模型来求解任何类型的反应性传输系统（Clement，1997; Clement等，1998）。在这项研究中，开发了详细的生化反应模型以模拟在Dover AFB站点发生的所有需氧和厌氧反应。将反应整合到RT3D中，并使用所得的数字代码模拟现场发生的生物反应性转运。通过模型校准过程，可以估算PCE / TCE及其降解产物的现场规模衰减率。校准后的模型成功地重建了PCE，TCE，DCE，VC和氯化物羽流的观测分布。还对校准模型进行了详细的灵敏度分析，以研究与模型参数相关的不确定性。在这项工作中开发的仿真模型是用于分析氯化溶剂自然衰减数据的有用框架。

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