| 陶瓷膜构型对错流微滤酵母悬浮液性能的影响 |
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| 引用本文： | 邓唯,邢卫红,范益群.陶瓷膜构型对错流微滤酵母悬浮液性能的影响[J].陶瓷科学与艺术,2011(2). |
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| 作者姓名： | 邓唯 邢卫红 范益群 |
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| 作者单位： | 南京工业大学化学化工学院材料化学工程国家重点实验室; |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2007AA030303) |
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| 摘 要： | 采用3种构型的陶瓷微滤膜元件对酵母悬浮液进行错流过滤实验,考察陶瓷膜元件的构型对于其错流过滤性能的影响。结果表明:减小陶瓷膜元件的通道直径可以提高料液在膜表面的剪切力,有助于提高过滤稳定通量和临界压力,在3 m/s膜面流速、0.1 MPa跨膜压差条件下,单管、19通道、55通道的稳定通量分别为96、128、196 L/(m2.h);在3 m/s膜面流速条件下,3种陶瓷膜元件的临界压力分别约为0.15、0.2、0.2 MPa。另外,减小通道直径还可以减小滤饼层的比阻,有利于降低过滤阻力;与提高膜面流速来增大过滤通量的方法相比,减小陶瓷膜的通道直径具有能耗较小的优点。
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| 关 键 词： | 陶瓷膜 构型 错流微滤 比阻 能耗 |
Effects of ceramic membrane configuration on the performance of crossflow microfiltration of yeast suspension |
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| DENG Wei,XING Weihong,FAN Yiqun.Effects of ceramic membrane configuration on the performance of crossflow microfiltration of yeast suspension[J].Ceramics Science & Art,2011(2). |
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| Authors: | DENG Wei XING Weihong FAN Yiqun |
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| Affiliation: | DENG Wei,XING Weihong,FAN Yiqun(State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Crossflow microfiltration of yeast suspensions was carried out using three types of ceramic membrane with different configurations.The effects of membrane configuration on filtration performance were investigated.The results showed that reducing the diameter of the membrane channel could increase the shear stress of the feed on the membrane surface,thus increasing the steady state flux and the critical pressure.Under the conditions of 3 m/s crossflow velocity and 0.1 MPa transmembrane pressure,the steady st... |
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| Keywords: | ceramic membrane configuration crossflow microfiltration specific resistance energy consumption |
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