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Design of composite filtration media using flow porometry

机译：流动孔径的复合过滤介质设计

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Filtration media are required to have suitable pore size, pore size distribution, pore volume, pore surface area and permeability for performing satisfactorily in applications. It is difficult to encounter all the desired properties in a filtration medium. In this investigation, we have characterized filtration media by flow porometry, used these pre-characterized filtration media to design composite filtration media, and tested these composites by flow porometry. Specimen of the filtration medium to be tested is soaked in a wetting liquid and gas pressure on one side of the specimen is slowly increased to displace the liquid from the pores and increase gas flow. Gas pressure and flow rates through wet and dry samples are measured and analyzed to obtain the largest pore size, the pore size distribution, and permeability. All of these characteristics of filtration media were measured in this investigation. It was shown that composite filtration media possessing unique characteristics could be prepared by a logical selection of pre-characterized filtration media.
机译：过滤培养基是具有合适的孔径，孔径分布，孔体积，孔表面积和渗透性，在应用中令人满意地进行。难以在过滤介质中遇到所有所需的性质。在该研究中，我们通过流动孔径表征过滤介质，使用这些预先表征过滤介质来设计复合过滤介质，并通过流动孔径测试这些复合材料。将待测试的过滤培养基的样品浸泡在润湿液体中，并将​​样品一侧的气体压力缓慢增加，以使液体来自孔并增加气体流动。通过湿和干燥样品的气体压力和流速进行测量并分析以获得最大的孔径，孔径分布和渗透性。在本研究中测量了过滤培养基的所有特征。结果表明，具有独特特征的复合过滤介质可以通过逻辑选择预先表征过滤介质来制备。

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