采用聚四氟乙烯膜,以真空膜蒸馏过程为例,通过在膜的两侧放置形状不同的电极,并使渗透侧的场强大于原料侧的场强,建立不对称静电场强化膜蒸馏过程,使极性分子水在电场梯度力的作用下,加速向渗透侧迁移,从而提高水分子的渗透通量.结果表明,在相同实验条件下,附加不对称静电场的强化过程较传统的膜蒸馏过程的水渗透通量有很大幅度提高,在电压梯度为170 kV/m的针板电场中,水通量提高率可达50％.还探讨了不对称静电场强化膜蒸馏过程在脱盐、染料废水处理以及热敏性药物浓缩领域的应用.结果表明,不对称静电场可以同时提高水通量和分离性能.
参考文献
| [1] | El-Bourawi MS;Ding Z;Ma R;Khayet M.A framework for better understanding membrane distillation separation process[J].Journal of Membrane Science,20061/2(1/2):4-29. |
| [2] | 吴庸烈.膜蒸馏技术及其应用进展[J].膜科学与技术,2003(04):67-79,92. |
| [3] | 吕晓龙.膜蒸馏过程探讨[J].膜科学与技术,2010(03):1-10. |
| [4] | 秦英杰;刘立强;何菲;张艳萍;吴茵;王世昌.内部热能回收式多效膜蒸馏用于海水淡化及浓盐水深度浓缩[J].膜科学与技术,2012(2):52-58. |
| [5] | Efrem Curcio;Enrico Drioli.Membrane Distillation and Related Operations-A Review[J].Separation and Purification Reviews,20051(1):35-86. |
| [6] | Ding ZW;Liu LY;Yu HF;Ma RY;Yang ZR.Concentrating the extract of traditional Chinese medicine by direct contact membrane distillation[J].Journal of Membrane Science,20081/2(1/2):539-549. |
| [7] | A. Criscuoli;J. Zhong;A. Figoli;M.C. Carnevale;R. Huang;E. Drioli.Treatment Of Dye Solutions By Vacuum Membrane Distillation[J].Water research: A journal of the international water association,200820(20):5031-5037. |
| [8] | Alessandra Criscuoli;Maria Concetta Carnevale;Enrico Drioli.Evaluation of energy requirements in membrane distillation[J].Chemical Engineering and Processing,20087(7):1098-1105. |
| [9] | Heru Susanto.Towards practical implementations of membrane distillation[J].Chemical Engineering and Processing,20112(2):139-150. |
| [10] | Muhammad Tauha Ali;Hassan E.S. Fath;Peter R. Armstrong.A comprehensive techno-economical review of indirect solar desalination[J].Renewable & sustainable energy reviews,20118(8):4187-4199. |
| [11] | Peng Wang;May May Teoh;Tai-Shung Chung.Morphological architecture of dual-layer hollow fiber for membrane distillation with higher desalination performance[J].Water research: A journal of the international water association,201117(17):5489-5500. |
| [12] | Peng Wang;Tai-Shung Chung.A New-Generation Asymmetric Multi-Bore Hollow Fiber Membrane for Sustainable Water Production via Vacuum Membrane Distillation[J].Environmental Science & Technology: ES&T,201312(12):6272-6278. |
| [13] | Hongtao Wang;Baoan Li;Li Wang.Permeate Flux Curve Characteristics Analysis of Cross-Flow Vacuum Membrane Distillation[J].Industrial & Engineering Chemistry Research,20121(1):487-494. |
| [14] | Dielectrophoresis at the nanoscale[J].Electrophoresis: The Official Journal of the International Electrophoresis Society,201117(17):2307-2313. |
| [15] | H.trathmann.Membrane Separation Processes: Current Relevance and Future Opportunities[J].AIChE Journal,20015(5):1077-1087. |
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