| 超滤膜结构参数的测定方法及透水通量与膜结构关系的模型 |
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| 引用本文： | 王磊,王旭东,段文松,刘莹. 超滤膜结构参数的测定方法及透水通量与膜结构关系的模型[J]. 膜科学与技术, 2006, 26(5): 55-59 |
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| 作者姓名： | 王磊 王旭东 段文松 刘莹 |
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| 作者单位： | 西安建筑科技大学,环境与市政工程学院,陕西,西安,710055 |
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| 基金项目： | 国家自然科学基金资助项目(50308023) |
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| 摘 要： | 用扫描电镜、场发射扫描电镜以及渗透率法测定了超滤膜表面孔径分布、孔隙率以及膜孔密度等结构参数．结果表明,用扫描电镜法和渗透率法测定膜平均孔径及膜孔密度等结构参数是可行的．基于获得的结构参数,建立透水通量和平均孔径、膜孔密度间的数学模型,并探讨了模型中平均孔径减小系数a1和膜孔密度减小系数a2的确定方法及不同原水性状下的a1和a2的值．
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| 关 键 词： | 扫描电镜法 渗透率法 膜孔密度 孔径分布 模型 |
| 文章编号： | 1007-8924(2006)05-0055-05 |
| 修稿时间： | 2005-01-31 |
Research on the determining method of UF structure parameters and the relationship between flux and membrane structure |
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| WANG Lei,WANG Xudong,DUAN Wensong,LIU Ying. Research on the determining method of UF structure parameters and the relationship between flux and membrane structure[J]. Membrane Science and Technology, 2006, 26(5): 55-59 |
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| Authors: | WANG Lei WANG Xudong DUAN Wensong LIU Ying |
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| Abstract: | The configuration parameters of UF surface pore size distribution, porosity and pore density were measured with scanning electron microscope (SEM), the field emission scanning electron microscope (FESEM) and permeability rate method. The results showed that the data of pore density obtained from SEM and FESEM were applicable. Using the parameters calculated from the SEM, FESEM and permeation method, a model was established between flux and the mean pore size and pore density, and discussed the determination method of factor a1 affecting pore density and factor a2 affecting mean pore size. |
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| Keywords: | SEM permeability rate method pore density pore size distribution model |
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