| 错流过滤中由颗粒沉积模型对滤饼厚度的分析 |
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| 引用本文： | 杨泽志,奚旦立,毛艳梅.错流过滤中由颗粒沉积模型对滤饼厚度的分析[J].东华大学学报(自然科学版),2008,34(6). |
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| 作者姓名： | 杨泽志 奚旦立 毛艳梅 |
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| 作者单位： | 东华大学,环境科学与工程学院,上海,201620 |
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| 摘 要： | 膜过滤过程中污染物颗粒会不断在膜表面沉积从而形成滤饼,其所带来的通量下降使膜过滤效率下降.为分析微粒在沉积过程中的机理与影响因素,以单个微粒的受力为基础,建立了过滤过程中滤饼厚度的方程式,为尽量降低膜过滤阻力提供了理论参考.
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| 关 键 词： | 错流过滤 滤饼 颗粒沉积 |
Cake Thickness Model by Particle Dynamic Balance Analysis in Cross-Filtration |
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| YANG Ze-zhi,XI Dan-li,MAO Yan-mei.Cake Thickness Model by Particle Dynamic Balance Analysis in Cross-Filtration[J].Journal of Donghua University,2008,34(6). |
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| Authors: | YANG Ze-zhi XI Dan-li MAO Yan-mei |
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| Abstract: | Cake should be formed by particles deposition on the membrane during filtration,the flux decreasing brought by cake would decrease the filtration efficiency.On the purpose of analyzing the particle deposition mechanism and influence factors,cake thickness model has been deduced by particle dynamic balance analysis in cross-filtration based on the force analysis of one particle.The model supplies theory how to increase the flux. |
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| Keywords: | cross-filtration cake particle deposition |
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