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Assessment of Bench- and Pilot-Scale Fouling of Low-Pressure Membranes by NOM Using a Unified Modified Fouling Index 使用统一的修正污染指数通过NOM评估低压膜的小试和中试规模污染
发布日期: 2007-03-01
本幻灯片演示的目的是: 推导出一个新的污垢指数,可以 正确解释膜的特异性 膜的可逆性 污垢; 开发一个小型实验装置 适用于统一修正污垢指数(UMFI)测定;和 评估不同物理环境的影响 以及UMFI上的化学因素,以便 制定合适的实验方案。介绍中概述的有关UMFI理论基础的具体主题包括:恒压Hermia模型 过滤;滤饼层的形成与膜 污垢指数;恒定流量的Hermia模型 过滤;统一Hermia模型; 统一膜污染指数 (UMFI);以及UMFI的物理意义。概述的与UMFI实验测定有关的主题包括: 小型试验装置;实验室规模装置的示意图;还有操作规程。概述的与UMFI方法有效性相关的主题包括: 适合度;还有,UMFI的规模。概述的有关UMFI应用的主题包括: 膜污染评价 选择水源水污染评价 潜在的以及污垢控制策略的评估 用于系统操作。包括表格、数字。
The objectives of this slide presentation were to: derive a novel fouling index that can properly account for the membrane-specificity and reversibility of membrane fouling; develop a bench-scale experimental unit suitable for a unified modified fouling index (UMFI) determination; and, evaluate the impacts of different physical and chemical factors on UMFI so as to establish a proper experimental protocol. Specific topics outlined in the presentation pertaining to the Theoretical Basis of UMFI include: Hermia Model for Constant Pressure Filtration; Cake Layer Formation and Membrane Fouling Indices; Hermia Model for Constant Flux Filtration; Unified Hermia Model; Unified Membrane Fouling Index (UMFI); and, Physical Meaning of UMFI. Topics outlined pertaining to experimental determination of UMFI include: Bench Scale Testing Unit; Diagrams of the Bench Scale Unit; and, Operational Protocol. Topics outlined pertaining to validity of UMFI Method include: the Goodness-of-Fit; and, Scale-Up of UMFI. Topics outlined pertaining to application of UMFI include: Fouling Assessment for Membrane Selection; Assessing Source Water Fouling Potential; and, Assessment of Fouling Control Strategies for System Operation. Includes tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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