| 黄廷林,任磊.多沙河流中石油类污染物迁移的一维数学模型(Ⅱ-解吸模型)[J].水利学报,2004,35(10):0125-0128 |
| 多沙河流中石油类污染物迁移的一维数学模型(Ⅱ-解吸模型) |
| One-dimension mathematical model for oil pollution transport in silt-laden stream(Ⅱ)：Desorption model |
| 投稿时间：2003-05-20 |
| DOI： |
| 中文关键词: 石油类污染物 多沙河流 迁移模型 解吸模型 |
| 英文关键词: oil pollution silt-laden stream interaction between sedimentation and oil dispersion effect desorption model pollution transport |
| 基金项目:高等学校优秀青年教师教学科研奖励计划 |
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| 摘要点击次数: 2961 |
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| 中文摘要: |
| 本文建立了一维河流石油类污染物“解吸为主”的动态水质模型。模型方程中考虑了河流悬移质、推移质泥沙和底泥与石油类之间发生的吸附\解吸的动态过程，以及河流弥散作用对石油类污染物在多沙河流中迁移的影响。模型还考虑了底泥解吸与泥沙解析在速率上的差别，使模型更加精确实用。运用拉普拉斯变换，求得了模型方程法的解析解。用室内烧杯试验的方法确定出了研究区域内的污染底泥解吸常数kdw；结合室内水槽动态试验，对解吸模型进行了验证。结果表明，该模型能够较好地描述一维多沙河流污染沉积物中石油类污染物的解吸过程。 |
| 英文摘要: |
| The 1-D mathematical model describing the water quality of river polluted by oil characterized by desorption effect is established. In the model the dynamic process of adsorption/desorption interaction between sediment and oil as well as the dispersion effect of flow on oil pollution transport are taken into account. The Laplace transformation is adopted to deduce the analytical solution of the model. The desorption constant is determined by experiment and the validity of the model is verified by physical model test in flume. |
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