应用DNAPL plume快速评估场地DNAPL污染

Rapid evaluation of field DNAPL contamination based on DNAPL plume

地下水污染中DNAPL污染危害人体健康,且难以修复,所以对DNAPL污染的评估很重要。文章介绍了一种模拟DNAPL污染物运移的软件——DNAPL plume,并基于该软件快速评估场地DNAPL污染。针对长期污染泄漏场地的调查问题,本文简化了DNAPL plume模型,并用它快速评估燕子矶污染场地DNAPL污染,提出了修复建议。针对突发性污染泄漏场地的调查问题,本文模拟了一次假想的槽罐车泄漏事故,评估了这次事故对地下水的影响,并模拟了几种可行的修复方案,对比并选择了最优方案。

DNAPL contaminant,which is difficult to remediate,is a great threat to human health. Thus it is important to evaluate DNAPL contaminant sites. Particularly,it is quite necessary to rapidly evaluate DNAPL contamination status for site investigation. This paper introduces a software-DNAPL plume,which is used to simulate the migration of DNAPL. In the present study,a simplified DNAPL plume model is successfully performed to explore long-term leakage of contaminant for the Yanziji site,and some remedial suggestions are proposed based on the simulation results of field investigation. The contamination leakage event of a hypothetical tank trunk is also simulated to evaluate the influence of abrupt contaminant leakage on groundwater. Based on the results,several feasible remediation schemes are tested and the optimal one is selected.