抽出处理措施的有效性评价

应用经过拟合的模型，对实例中实施的抽出水处理措施的有效性作了数值模拟分析，结果表明，在模拟时段内场地区碳岩含水层中ＴＣＥ污染羽状体的分布范围及其浓度均有比较明显的减小，去污效率比较理想。已由抽水试验证实，其有利因素之一就是污染含水层介质具有较强的水力传导性，鉴于系统的不确定性，应对抽出处理方案进行多阶段设计。

Study of Groundwater Contamination in a Carbonate Aquifer and Remediation 3.Performance Assessment of Pump-and-Treat Measures

By use of the calibrated model,the performance of pump and treat measures at site is assessed on the basis of numerical simulation.The results indicate that there is a net reduction both in concentration of TCE contaminant and in the extent of TCE plume during operation.Therefore,remediation efficiency (RE) is ideal.One important favourable factor is the high transmissivity of the aquifer,according to the pumping test at site.It appears that high permeability of the media,combined with relative homogeneity,is suitable for groundwater remediation.Finally,it is suggested that a multi stage design be conducted,considering the system uncertainties.