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| 某化工园区地下水污染迁移及控制数值模拟研究 |
| Numerical Simulation of Groundwater Pollution Migration and Control in A Chemical Industry Park |
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| DOI： |
| 中文关键词: 地下水污染 数值模拟 防渗帷幕 污染迁移 污染控制 化工园区 |
| 英文关键词: Groundwater pollution Numerical simulation Anti-seepage curtain Pollution migration Pollution control Chemical industry park |
| 基金项目:国家重点研发计划“长江经济带化工园区场地污染防治技术集成与工程示范”基金资助项目（2019YFC1804000 ）；江苏省科技研发计划“土壤地下水一体化风险防控与绿色修复关键技术集成科技示范”基金资助项目（BE2019624） |
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| 摘要点击次数: 156 |
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| 中文摘要: |
| 某化工园区潜水中氟化物超标，为控制受污染地下水扩散，沿下游河堤修建防渗帷幕。通过分析研究区水文地质条件，应用FEFLOW 7.0建立地下水数值模型，预测防渗帷幕修建前后受污染地下水迁移情况，并评估防渗帷幕污染控制效果。结果表明：化工园区受污染地下水在以粉砂、粉细砂等岩性为主的潜水含水层中迁移速度快，第200天时污染物对源强附近及下游大片范围地下水造成污染；在污染源下游沿堤修建防渗帷幕短期虽可有效阻断污染物持续迁移，但会导致污染物在帷幕前端聚集，一段时间后地下水污染羽会绕过防渗帷幕发生渗流污染，须配合其他治理措施综合控制地下水污染。 |
| 英文摘要: |
| As fluoride in groundwater in a chemical park exceeded the standard seriously， an anti-seepage curtain was applied along the riverbank embankment to prevent contaminated groundwater. By analyzing the hydrogeological conditions in the study area， a numerical groundwater model was established by FEFLOW 7.0 to predict the migration of contaminated groundwater before and after applying anti-seepage curtain， and evaluate the pollution control effect of the anti-seepage curtain. The results showed that the contaminated groundwater in the chemical industry park migrated quickly in the aquifer dominated by silt and fine sand sandstone. After 200 days， the contaminants polluted groundwater near source strength and large area downstream. The application of anti-seepage curtain in the downstream of the pollution source along the river embankment could effectively prevent the continuous migration of pollutants in the short term， but it would lead to the accumulation of pollutants before the curtain. After a period of time， the pollutants in groundwater would bypass the anti-seepage curtain and cause seepage pollution. It was necessary to control groundwater pollution comprehensively in conjunction with other treatment measures. |
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