| 表面活性剂冲洗修复土壤油污染多相运移数值模型研究 |
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| 引用本文： | 尚光旭,陈家军,支银芳. 表面活性剂冲洗修复土壤油污染多相运移数值模型研究[J]. 水动力学研究与进展(A辑), 2011, 0(5) |
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| 作者姓名： | 尚光旭 陈家军 支银芳 |
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| 作者单位： | 北京师范大学环境学院环境模拟与污染控制国家重点联合实验室; |
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| 基金项目： | 国家自然科学基金资助项目(40772148); 中央高校基本科研业务费专项资金(2009SD-19)资助 |
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| 摘 要： | 数值模型是分析土壤油污染和设计修复方案的有利工具。本文开发了描述表面活性剂增溶、促流机制的模型,并将其集成于NAPL模型,从而构建了表面活性剂冲洗修复土壤油污染多相运移模型,此模型可用于模拟饱和带和非饱和带的情况。用表面活性剂冲洗模型模拟了柴油泄漏、重分布和表面活性剂冲洗砂介质中柴油的试验情景,模型可很好地体现表面活性剂冲洗中的增溶、促流机制,模型模拟结果与试验结果吻合较好。水冲洗对土壤中自由态油的去除效果显著,实际中可先用水冲洗,冲洗至油近残余饱和态时再用表面活性剂冲洗,以降低成本。表面活性剂冲洗较水冲洗能更快更好地修复土壤油污染。
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| 关 键 词： | 表面活性剂冲洗 土壤修复 油污染 增溶 促流 |
Study on numerical model of multi-phase transport for surfactant flushing for remediation of NAPLs in soil |
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| SHANG Guang-xu,CHEN Jia-jun,ZHI Yin-fang. Study on numerical model of multi-phase transport for surfactant flushing for remediation of NAPLs in soil[J]. Chinese Journal of Hydrodynamics, 2011, 0(5) |
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| Authors: | SHANG Guang-xu CHEN Jia-jun ZHI Yin-fang |
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| Affiliation: | SHANG Guang-xu,CHEN Jia-jun,ZHI Yin-fang(State Key Joint Laboratory of Environmental Simulation and Pollution Control,School of Environment,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | The numerical model is a helpful tool for analyzing oil pollution in soil and designing remediation projects.The model describing mechanism of surfactant solubilization and mobilization was established,and integrated into the NAPL model,thus a multi-phase transport model was built,which could model surfactant flushing for remediation of NAPLs in soil and can be used in saturated/unsaturated zone.Then the surfactant flushing model was applied into experimental scenes,in which diesel leaking,diesel redistribu... |
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| Keywords: | surfactant flushing soil remediation NAPLs contamination solubilization mobilization |
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