| 微波辅助对生物溶液超滤过程的影响 |
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| 引用本文： | 杨俊红,孙明迪,邸倩倩,曹伟,刘文博,姜强.微波辅助对生物溶液超滤过程的影响[J].工程热物理学报,2010,31(1). |
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| 作者姓名： | 杨俊红 孙明迪 邸倩倩 曹伟 刘文博 姜强 |
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| 作者单位： | 天津大学机械工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目(No.50876073);;天津市自然科学重点基金(No.08JCZDJC19900) |
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| 摘 要： | 为验证微波场强化植物提取的"膜超滤"假说机理,以聚醚砜超滤膜为研究对象,以膜通量为考察指标,结合膜和黄芪饮片显微结构的扫描电镜(SEM)表征,讨论了微波辐射对黄芪水提液超滤过程的影响。结果表明,驱动压力相同,微波辅助超滤30 min时,膜通量下降到初始值的57.36%,且膜表面观察不到凝胶层;而常规超滤30 min,膜通量已下降到初始值的30.29%,且膜表面覆盖一层约20μm的凝胶层。说明微波辐射能够减弱浓差极化现象,促进膜超滤过程中的物质传递。
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| 关 键 词： | 微波效应 膜超滤 SEM 浓差极化 |
EFFECT OF MICROWAVE ASSISTED TECHNOLOGY ON ULTRA-FILTRATION PROCESS OF BIOLOGICAL SOLUTION |
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| YANG Jun-Hong,SUN Ming-Di,DI Qian-Qian,CAO Wei,LIU Wen-Bo,JIANG Qiang.EFFECT OF MICROWAVE ASSISTED TECHNOLOGY ON ULTRA-FILTRATION PROCESS OF BIOLOGICAL SOLUTION[J].Journal of Engineering Thermophysics,2010,31(1). |
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| Authors: | YANG Jun-Hong SUN Ming-Di DI Qian-Qian CAO Wei LIU Wen-Bo JIANG Qiang |
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| Institution: | School of Mechanical Engineering;Tianjin University;Tianjin 300072;China |
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| Abstract: | To verify the hypothesis of"membrane ultrafiltration"on the enhancement of microwave field during the extraction of functional component from plant porous materials,choosing polyethersulfone(PES) as the ultra-filtration membrane,this paper presents a series of experiments on ultrafiltration of Astragalus water extraction solution.Combining the characterization of the microstructure of membrane by Scanning Electron Microscope(SEM),we compare the ultrafiltration property of PES membrane assisted by microwave ... |
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| Keywords: | microwave effect membrane ultrafiltration SEM concentration polarization |
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