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张维, 许丹宇, 郑先强, 孙凯, 侯霙. 微滤膜垢分形生长的过程模拟[J]. 环境工程学报, 2012, 6(10): 3509-3513.
引用本文: 张维, 许丹宇, 郑先强, 孙凯, 侯霙. 微滤膜垢分形生长的过程模拟[J]. 环境工程学报, 2012, 6(10): 3509-3513.
shu
Zhang Wei, Xu Danyu, Zheng Xianqiang, Sun Kai, Hou Ying. Process simulation of fractal growth of microfiltration membrane fouling[J]. Chinese Journal of Environmental Engineering, 2012, 6(10): 3509-3513.
Citation: Zhang Wei, Xu Danyu, Zheng Xianqiang, Sun Kai, Hou Ying. Process simulation of fractal growth of microfiltration membrane fouling[J]. Chinese Journal of Environmental Engineering, 2012, 6(10): 3509-3513.
shu

微滤膜垢分形生长的过程模拟

  • 1.

    天津市环境保护科学研究院, 天津 300191

  • 2.

    天津市联合环保工程设计有限公司 天津 300191

  • 基金项目:

    国家水体污染控制与治理科技重大专项(2008ZX07314-001)

  • 中图分类号: X703

Process simulation of fractal growth of microfiltration membrane fouling

  • Fund Project:

  • 摘要: 基于微滤膜系统污垢形成机制和分形理论,建立微滤过程膜表面混合垢生长DLA模型,并通过实验验证了模型模拟的可行性和准确性。选取不同运行周期条件下微滤膜系统中的受污染膜丝,进行膜垢污染生长的实时测试,并与不同运行条件下模型的动态模拟结果进行实际比较分析,结果表明两者分形维数相近,且分形维数与膜污染程度呈正相关,说明该模型能够动态表征膜污染水平,可揭示出微滤过程中膜垢生长的动态变化规律,预测出膜材料的受污染水平。
    Abstract: Based on the formation mechanism of microfiltration membrane fouling and the fractal theory,a diffusion-limited aggregation (DLA) model of microfiltration membrane fouling was established.Its accuracy and feasibility were validated with experiments.Membrane fibers of microfiltration systems contaminated under different operation cycles were taken to test the real-time growth of membrane fouling.These test results were compared with their simulation counterparts from the dynamic model for different operating conditions.The comparisons show that the fractal dimensions of the experiment results and the dynamic model are similar.Furthermore,the fractal dimensions of the dynamic model are positively correlated with the degree of membrane fouling.Therefore,it is shown that this model can simulate the dynamic of membrane fouling degrees,reveal changing dynamics of the growth of microfiltration membrane fouling during filtration processes,as well as predict the degree of fouling of membrane materials.
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出版历程
  • 收稿日期:  2011-12-13
  • 刊出日期:  2012-10-16
张维, 许丹宇, 郑先强, 孙凯, 侯霙. 微滤膜垢分形生长的过程模拟[J]. 环境工程学报, 2012, 6(10): 3509-3513.
引用本文: 张维, 许丹宇, 郑先强, 孙凯, 侯霙. 微滤膜垢分形生长的过程模拟[J]. 环境工程学报, 2012, 6(10): 3509-3513.
shu
Zhang Wei, Xu Danyu, Zheng Xianqiang, Sun Kai, Hou Ying. Process simulation of fractal growth of microfiltration membrane fouling[J]. Chinese Journal of Environmental Engineering, 2012, 6(10): 3509-3513.
Citation: Zhang Wei, Xu Danyu, Zheng Xianqiang, Sun Kai, Hou Ying. Process simulation of fractal growth of microfiltration membrane fouling[J]. Chinese Journal of Environmental Engineering, 2012, 6(10): 3509-3513.
shu

微滤膜垢分形生长的过程模拟

  • 1.  天津市环境保护科学研究院, 天津 300191
  • 2.  天津市联合环保工程设计有限公司 天津 300191
  • 收稿日期:  2011-12-13
基金项目:

国家水体污染控制与治理科技重大专项(2008ZX07314-001)

摘要: 基于微滤膜系统污垢形成机制和分形理论,建立微滤过程膜表面混合垢生长DLA模型,并通过实验验证了模型模拟的可行性和准确性。选取不同运行周期条件下微滤膜系统中的受污染膜丝,进行膜垢污染生长的实时测试,并与不同运行条件下模型的动态模拟结果进行实际比较分析,结果表明两者分形维数相近,且分形维数与膜污染程度呈正相关,说明该模型能够动态表征膜污染水平,可揭示出微滤过程中膜垢生长的动态变化规律,预测出膜材料的受污染水平。

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