选择NF-45纳滤膜进行糖和盐单组分和混合体系的分离实验研究，考察了纳滤膜分离性能随着操作压力、循环流量及料液浓度的变化所受到的影响，讨论了葡萄糖-氯化钠、蔗糖-氯化钠混合体系中糖和盐的相互影响作用，认为可以运用NF-45纳滤膜在适宜的操作条件(如操作压力、料液浓度)实现糖和盐的较好分离.
NF-45 nanofiltration membrane was selected to perform permeationexperiments of single and mixed composition aqueous solutions of saccharide and sodium chloride according to the different rejection of NF-45 membrane to saccharide and sodium chloride. The effects of applied pressure and bulk concentration on the separation performance, and the interaction of saccharide and salt in the separation processes of glucose-salt and sucrose-salt mixtures were investigated. It can be seen that the saccharide and salt can be well separated by NF-45 membrane under some appropriate operation conditions(such as the applied pressure and bulk concentration conditions).
参考文献
| [1] | 王晓琳,张澄洪,赵杰.纳滤膜的分离机理及其在食品和医药行业中的应用[J].膜科学与技术,2000(01):29-36. |
| [2] | Perry M;Linder C .Intermediate reverse osmosis ultrafiltration(RO UF)membranes for concentration and desalting of low molecular weight organic solutes[J].Desalination,1989,71:233-245. |
| [3] | Rautenbach R;Croschl A .Separation potential of nanofiltration membranes[J].DESALINATION,1990,77:73-84. |
| [4] | Petersen R J .Composite reverse osmosis and nanofiltration membranes[J].Journal of Membrane Science,1993,83:81-150. |
| [5] | Wang X L;Tsuru T;Tongoh M et al.Evaluation of pore structure and electrical properties of nanofiltration membranes[J].Journal of Chemical Engineering of Japan,1995,28:186-192. |
| [6] | 中恒正幸;清水 博.膜处理技术大全[M].东京:フジテクノシステム,1991 |
| [7] | Schring P;Windmer F .Characterisation of nanofiltration membranes for the separation of aqueous dye-salt solutions[J].Desalination,1992,89:89-107. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%