Huang Y F, Huang G H, Wang G Q, Lin Q G, Chakma A
Institute of River and Coastal Engineering, Tsinghua University, Beijing 100084, China.
Environ Pollut. 2006 Dec;144(3):872-85. doi: 10.1016/j.envpol.2006.02.017. Epub 2006 Apr 24.
Groundwater contamination due to releases of petroleum products is a major environmental concern in many urban districts and industrial zones. Over the past years, a few studies were undertaken to address in situ bioremediation processes coupled with contaminant transport in two- or three-dimensional domains. However, they were concentrated on natural attenuation processes for petroleum contaminants or enhanced in situ bioremediation processes in laboratory columns. In this study, an integrated numerical and physical modeling system is developed for simulating an enhanced in situ biodegradation (EISB) process coupled with three-dimensional multiphase multicomponent flow and transport simulation in a multi-dimensional pilot-scale physical model. The designed pilot-scale physical model is effective in tackling natural attenuation and EISB processes for site remediation. The simulation results demonstrate that the developed system is effective in modeling the EISB process, and can thus be used for investigating the effects of various uncertainties.
石油产品泄漏导致的地下水污染是许多城区和工业区主要关注的环境问题。在过去几年里，开展了一些研究来探讨原位生物修复过程以及污染物在二维或三维区域中的运移情况。然而，这些研究主要集中在石油污染物的自然衰减过程或实验室柱体中的强化原位生物修复过程。在本研究中，开发了一个集成的数值和物理建模系统，用于在多维中试规模物理模型中模拟强化原位生物降解（EISB）过程以及三维多相多组分流动与运移情况。所设计的中试规模物理模型对于处理场地修复中的自然衰减和EISB过程是有效的。模拟结果表明，所开发的系统在模拟EISB过程方面是有效的，因此可用于研究各种不确定性的影响。
