Evolution of the membrane clogging model to characterize the filtration performance of the microfiltration membrane and its new model concept
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摘要:
为探究膜过滤过程中污染物迁移/沉积规律,推出一组符合实际过滤过程的数学模型,通过整合已有数学模型并分析其各自和共同的局限性,结合各类已有研究方法建立思路提出“非稳态膜堵塞模型拟合试验方法”理念,旨在深入剖析膜过滤过程中不同时间污染物在膜组件内部不同空间的分布状态,实现膜过滤过程及膜堵塞机理的全过程连续性研究,从而更加有针对性地解决膜组件内部不同截留层上污染物沉积问题,与此同时,提出模型优化技术为模型建立及精细化提供理论依据。
Abstract:To explore the rules of pollutant migration/deposition in the membrane filtration process, a set of mathematical models conforming to the actual filtration process was introduced. By integrating existing mathematical models and analyzing their respective and common limitations, combining various existing research methods to establish ideas, the concept of the "Unsteady Membrane Clogging Model Fitting Test Method" was put forward to deeply analyze the distribution of pollutants in different spaces inside the membrane module at different times during the membrane filtration process, and to realize the continuity of the whole process of the membrane filtration process and membrane clogging mechanism. In this way, the problem of pollutant deposition on the different trapping layers inside the membrane module could be solved more targetedly. At the same time, the model optimization technology was proposed to provide a theoretical basis for model establishment and refinement.
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