| 石油类污染物在砂砾石层中的迁移与分布 |
| 摘要点击 963 全文点击 2031 投稿时间：1998-01-15 |
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| 中文关键词 石油类污染物 砂砾石 迁移 静态模拟试验 动态土柱试验 数学模型 |
| 英文关键词 petroleum pollutant gravel transport static simulating experiment soil column experiment model |
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| 中文摘要 |
| 利用静态模拟实验研究河滩砂砾石对油类的静态吸附特性,确定平稳吸附等温方程。通过动态土柱实验模拟油类在砂砾石中的迁移过程,建立油类在砂砾石层中迁移的数学模拟模型,确定模型参数,以此预测油类在砂砾石中的迁移。结果表明：油类在砂砾石中的吸附符合Langmuir吸附模式；砂砾石对油类的吸附量小,迟滞因子Rd为1.06;石油类污染物在砂砾石层穿透能力很强,约经5d基本穿透20m的砂砾石层,10d基本穿透100m的砂砾石层。 |
| 英文摘要 |
| Through the static simulating experiment which was designed to study the static adsorption of petroleum pollutant by gravel,the equilibrium isothermal adsorption equation was determined.A soil column experiment was performed to investigate the dynamic transport of petroleum pollutant in gravel.A model of petroleum pollutant transport in gravel was developed and its parameters were determined.The petroleum pollutant adsorption by gravel conforms to Langmuir isotherm.The adsorption amount is very small and the retardation factor Rd is only 1.06.The ability of petroleum pollutant to transport in gravel is very strong.The model predicted that it only takes 5 days to transport through the gravel of 20m in thickness,and 10 days through that of 100m in thickness. |
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