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Determining Critical Flux in Submerged Membrane Filtration of Han River Water 汉江水浸没式膜过滤临界通量的确定
发布日期: 2007-11-01
浸没式中空纤维膜提供了一种经济高效的去除方法 用于饮用水生产的颗粒物和病原体。然而,污染问题一直存在 被认为是膜系统经济运行的主要障碍。这项研究 重点研究了中试规模中空纤维的过滤特性 基于临界通量概念的膜系统。建立了一个简单的水动力模型 用于分析中空纤维的轴向通量变化和临界通量 膜。 实验结果表明,原水水质的季节变化 参数显著影响膜的通透性。给水温度 温度范围为1.1至28.4ºC,浊度范围为1.0至560 NTU,导致 夏天和冬天的情况完全不同。收入的逐步增加 通量表明,表观临界通量约为50L/m2-hr。模型计算为: 还与实验数据进行了比较,以便更好地理解空心管内的污垢 纤维膜组件。包括11个参考文献、表格、图表。
Submerged hollow fiber membrane offers a cost-effective means of removing particles and pathogens for drinking water production. However, fouling has been regarded as a major hurdle for economic operation of membrane systems. This study focused on the investigation of filtration characteristics of a pilot-scale hollow fiber membrane system based on the critical flux concept. A simple hydrodynamic model was used for the analysis of axial flux variations and critical flux in hollow fiber membranes. Experimental results indicated that the seasonal variations of raw water quality parameters significantly affected membrane permeability. The temperature of feed water ranged from 1.1 to 28.4 ºC and the turbidity ranged from 1.0 to 560 NTU, leading to completely different conditions in summer and winter. A stepwise increase in imposed flux showed the apparent critical flux is about 50 L/m2-hr. The model calculation was also compared with the experimental data for better understanding of fouling in hollow fiber membrane modules. Includes 11 references, 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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