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硝酸铵-微量硝酸钙体系的纳滤过程研究

作者：汪润慈，袁中伟，晏太红，郑卫芳

单位：中国原子能科学研究院放射化学研究所，北京 102413

关键词：硝酸铵；钙离子；纳滤

DOI号：

分类号： TQ 028.8

出版年,卷(期):页码： 2017,37(2):72-77

摘要：

采用DL和DK聚酰胺复合纳滤膜处理含微量钙离子的硝酸铵水溶液，考察了跨膜压差、膜面流速、料液温度等条件对硝酸铵的透过率、钙离子的截留率以及透过液通量的影响。结果表明纳滤膜可以在保持对硝酸铵透过率不低于90%的同时，对钙离子有最高80%的截留率；提高跨膜压差会首先提高截留率，再降低截留率；提高膜面流速会提高截留率；透过液通量主要受跨膜压差和温度的影响，均为正相关；实验结果还表明常量硝酸铵的存在降低了纳滤膜对微量钙离子的截留率。

Ammonium nitrate solution containing trace calcium ion as feed water is filtrated with DK and DL polymeric nanofiltration membrane. Transmission of NH4NO3, rejection of Ca2+ and volumetric permeate flux are discussed as function of transmembrane pressure, tangential velocity and temperature. The results show nanofiltration membrane can reject at most 80% of Ca2+ meanwhile transmit no less than 90% of ammonium nitrate; rejection of Ca2+ first increases then decreases with higher transmembrane pressure; higher tangential velocity results in more rejection; volumetric permeate flux increases as transmembrane pressure or temperature increases. The results also show presence of NH4NO3 decreases the rejection of Ca2+.

基金项目：

作者简介：

第一作者简介：汪润慈（1992-），男，黑龙江省哈尔滨人，在读硕士研究生，研究方向：核燃料循环与材料；＊通讯作者，E–mail: wfazh@ciae.ac.cn

参考文献：

[1] Eriksson Peter. Nanofiltration Extends the Range of Membrane Filtration[J]. Environmental Progress, 1988, 7(1): 58-62.
[2] Wagner Jørgen. Membrane Filtration Handbook Practical Tips and Hints[M]. America: Osmonics, Inc., 2001: 5-8.
[3] Tanninen J.,M N.. Separation of ions in acidic conditions using NF. Desalination[J]. Desalination, 2002, 1471: 295-299.
[4] Raman L.P.,Cheryan M., et al. Consider Nanofiltration for Membrane Separations[J]. Chemical Engineering Progress, 1994, 90(3): 68-74.
[5] 周钦,刘久清,等. 德兴铜矿精尾厂废水纳滤法浓缩和分离[J]. 有色金属科学与工程, 2014, 11: 13-15.
[6] S.J.Macnaughton,J.K.McCulloch, et al. Application of Nanofiltration to the Treatment of Uranium Mill Effluents[R]. Australia: Ansto, 2002.
[7] IAEA. Application of Membrane Technologies for Liquid Radioactive Waste Processing[R]. Vienna: Iaea, 2005.
[8] Morão Ana I. Cavaco,Alves Ana M. Brites, et al. Concentration of Clavulanic Acid Broths: Influence of the Membrane Surface Charge Density on Nf Operation[J]. Journal of Membrane Science, 2006, 281(1): 417-428.
[9] Mulder Macel. 膜技术基本原理[M]. 北京: 清华大学出版社, 1999: 193-194.
[10] 李如生. 非平衡态热力学和耗散结构[M]. 北京: 清华大学出版社, 1986: 80-104.
[11] 李浩,李雪梅,等. 纳滤分离模拟电镀废水浓缩液中Cr(Ⅵ)的研究[J]. 电镀与精饰, 2014, 14: 43-46.
[12] 单征,宁莎莎,等. 纳滤法去除中低放射性废水中钴离子的研究[J]. 水处理技术, 2012, 12: 21-24, 40.
[13] Favre-Réguillon A.,Lebuzit G., et al. Selective Removal of Dissolved Uranium in Drinking Water By Nanofiltration[J]. Water Research, 2008, 42(4): 1160-1166.
[14] 王大新,苏萌,等. 液体分离膜过程中的浓差极化及其评价方法[J]. 膜科学与技术, 2005, 256: 64-68.
[15] Vandezande Pieter,Gevers Lieven E. M., et al. Solvent Resistant Nanofiltration: Separating on a Molecular Level[J]. Chem. Soc. Rev., 2008, 37(2): 365-405.
[16] Nghiem Long D.,Schäfer Andrea I., et al. Removal of Natural Hormones By Nanofiltration Membranes: Measurement, Modeling, and Mechanisms[J]. Environ. Sci. Technol., 2004, 38(6): 1888-1896.
[17] Luo Jianquan,Wan Yinhua. Effects of Ph and Salt on Nanofiltration - a Critical Review[J]. Journal of Membrane Science, 2013, 438(1): 18-28.
[18] Tanninen Jukka,Mänttäri Mika, et al. Acid Separation with Nanofiltration – Effect of Electrolyte Strength and Donnan Forces[J]. Desalination, 2006, 199(1): 253-255.

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