| CaCl_2对葡萄糖纳滤截留率的影响 |
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| 引用本文： | 戚茂飞,武海洋,刘文强,杨刚,邢卫红,徐南平.CaCl_2对葡萄糖纳滤截留率的影响[J].陶瓷科学与艺术,2011(4). |
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| 作者姓名： | 戚茂飞 武海洋 刘文强 杨刚 邢卫红 徐南平 |
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| 作者单位： | 南京工业大学材料化学工程国家重点实验室; |
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| 基金项目： | 江苏省科技厅产学研前瞻性联合研究资助项目(BY2009106); 国家自然科学基金资助项目(20576052) |
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| 摘 要： | 采用Desal-DK纳滤膜进行中性有机物、CaCl2、葡萄糖/CaCl2混合体系的水溶液纳滤实验与数学模型表征研究。结果表明:CaCl2截留率随本体溶液浓度增大而减小,葡萄糖/CaCl2混合体系中葡萄糖截留率随CaCl2浓度增大而减小。采用道南-立体细孔模型描述CaCl2的截留率变化趋势与实验值吻合良好。实验拟合所得等效孔径、等效膜厚与等效荷电密度随CaCl2浓度增大而增大,表明本体溶液中的CaCl2促使膜孔膨胀。
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| 关 键 词： | 纳滤膜 截留率 微结构 |
Effects of CaCl_2 on retention of glucose by nanofiltration |
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| QI Maofei,WU Haiyang,LIU Wenqiang,YANG Gang,XING Weihong,XU Nanping.Effects of CaCl_2 on retention of glucose by nanofiltration[J].Ceramics Science & Art,2011(4). |
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| Authors: | QI Maofei WU Haiyang LIU Wenqiang YANG Gang XING Weihong XU Nanping |
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| Affiliation: | QI Maofei,WU Haiyang,LIU Wenqiang,YANG Gang,XING Weihong,XU Nanping(State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | A Desal-DK nanofiltration membrane was used to filtrate aqueous neutral organic matter,single CaCl2,and mixed glucose/CaCl2 solutions,respectively,and the numerical simulations were carried out to characterize the performance.Results showed that the CaCl2 rejection decreased as its bulk concentration increased.The glucose rejection also decreased as the CaCl2 concentration increased in the bulk glucose/CaCl2 solution.The Donnan-steric pore model(DSPM) was borrowed to describe the variations of the CaCl2 com... |
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| Keywords: | nanofiltration membrane rejection microstructure |
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