Salt transport in polymeric pervaporation membrane

doi:10.1016/j.cjche.2019.11.009

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (3): 758-765.DOI: 10.1016/j.cjche.2019.11.009

• Separation Science and Engineering • 上一篇下一篇

Salt transport in polymeric pervaporation membrane

Dihua Wu^1,2, Aoran Gao², Xianshe Feng²

1 College of Materials and Environmental Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, Hangzhou 310018, China;
2 Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo N2L 3G1, Ontario, Canada

收稿日期:2019-06-24 修回日期:2019-11-07 出版日期:2020-03-28 发布日期:2020-06-11
通讯作者: Xianshe Feng
基金资助:
Research support from the Natural Sciences and Engineering Research Council (NSERC) of Canada and Zhejiang Province Natural Science Foundation of China (LQ20B060002) are gratefully acknowledged. We also wish to acknowledge Arkema Inc. for generously supplying the polymer used in making the membranes.

Salt transport in polymeric pervaporation membrane

Dihua Wu^1,2, Aoran Gao², Xianshe Feng²

1 College of Materials and Environmental Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, Hangzhou 310018, China;
2 Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo N2L 3G1, Ontario, Canada

Received:2019-06-24 Revised:2019-11-07 Online:2020-03-28 Published:2020-06-11
Contact: Xianshe Feng
Supported by:
Research support from the Natural Sciences and Engineering Research Council (NSERC) of Canada and Zhejiang Province Natural Science Foundation of China (LQ20B060002) are gratefully acknowledged. We also wish to acknowledge Arkema Inc. for generously supplying the polymer used in making the membranes.

摘要/Abstract

摘要： The salt transport in a PEBA membrane used in pervaporative desalination was studied. The concentration profile of salt in the membrane during pervaporation was investigated experimentally using a multilayer membrane. The salt was found to be sorbed in the membrane but was not removed during the pervaporative desalination process, and the salt concentration in the membrane varied linearly with position. High purity water was obtained as the permeate as long as the permeate side was kept dry under vacuum. The accumulated salt uptake in the membrane follows the order of MgCl₂ > NaCl > Na₂SO₄. The solubility of salt in the membrane follows the order of MgCl₂ > NaCl > Na₂SO₄. Both the permeability and diffusivity of salt in the membrane follow the order of NaCl > MgCl₂ > Na₂SO₄. The permeability of salt in the membrane is not influenced by the feed salt concentration. It is mainly determined by the diffusion coefficients.

关键词: Concentration profile, Pervaporative desalination, Salt transport

Abstract: The salt transport in a PEBA membrane used in pervaporative desalination was studied. The concentration profile of salt in the membrane during pervaporation was investigated experimentally using a multilayer membrane. The salt was found to be sorbed in the membrane but was not removed during the pervaporative desalination process, and the salt concentration in the membrane varied linearly with position. High purity water was obtained as the permeate as long as the permeate side was kept dry under vacuum. The accumulated salt uptake in the membrane follows the order of MgCl₂ > NaCl > Na₂SO₄. The solubility of salt in the membrane follows the order of MgCl₂ > NaCl > Na₂SO₄. Both the permeability and diffusivity of salt in the membrane follow the order of NaCl > MgCl₂ > Na₂SO₄. The permeability of salt in the membrane is not influenced by the feed salt concentration. It is mainly determined by the diffusion coefficients.

Key words: Concentration profile, Pervaporative desalination, Salt transport

Dihua Wu, Aoran Gao, Xianshe Feng. Salt transport in polymeric pervaporation membrane[J]. 中国化学工程学报, 2020, 28(3): 758-765.

Dihua Wu, Aoran Gao, Xianshe Feng. Salt transport in polymeric pervaporation membrane[J]. Chinese Journal of Chemical Engineering, 2020, 28(3): 758-765.

参考文献

[1] L.D. Tijing, Y.C. Woo, J.-S. Choi, S. Lee, S.-H. Kim, H.K. Shon, Fouling and its control in membrane distillation-A review, J. Membr. Sci. 475(2015) 215-244.
[2] M. Laqbaqbi, M.C. García-Payo, M. Khayet, J.E. Kharraz, M. Chaouch, Application of direct contact membrane distillation for textile wastewater treatment and fouling study, Sep. Purif. Technol. 209(2019) 815-825.
[3] W. Kaminski, J. Marszalek, E. Tomczak, Water desalination by pervaporation-Comparison of energy consumption, Desalination 433(2018) 89-93.
[4] C.H. Cho, K.Y. Oh, S.K. Kim, J.G. Yeo, P.J. Sharma, Pervaporative seawater desalination using NaA zeolite membrane:Mechanisms of high water flux and high salt rejection, J. Membr. Sci. 371(2011) 226-238.
[5] C. Zhou, J. Zhou, A. Huang, Seeding-free synthesis of zeolite FAU membrane for seawater desalination by pervaporation, Micropor. Mesopor. Mat. 234(2016) 377-383.
[6] M. Elma, D.K. Wang, C. Yacou, J. Motuzas, J.C. Diniz da Costa, High performance interlayer-free mesoporous cobalt oxide silica membranes for desalination applications, Desalination 365(2015) 308-315.
[7] B. Liang, Q. Li, B. Cao, P. Li, Water permeance, permeability and desalination properties of the sulfonic acid functionalized composite pervaporation membranes, Desalination 433(2018) 132-140.
[8] R. Zhang, X. Xu, B. Cao, P. Li, Fabrication of high-performance PVA/PAN composite pervaporation membranes crosslinked by PMDA for wastewater desalination, Pet. Sci. 15(1) (2018) 146-156.
[9] L. Li, J. Hou, Y. Ye, J. Mansouri, Y. Zhang, V. Chen, Suppressing salt transport through composite pervaporation membranes for brine desalination, Appl. Sci. 7(8) (2017) 856.
[10] G. Liu, J. Shen, Q. Liu, G. Liu, J. Xiong, J. Yang, W. Jin, Ultrathin two-dimensional MXene membrane for pervaporation desalination, J. Membr. Sci. 548(2018) 548-558.
[11] H.J. Oh, J.E. McGrath, D.R. Paula, Water and salt transport properties of disulfonated poly(arylene ether sulfone) desalination membranes formed by solvent-free melt extrusion, J. Membr. Sci. 548(2018) 234-245.
[12] H. Luo, J. Aboki, Y. Ji, R. Guo, G.M. Geise, Water and salt transport properties of triptycene-containing sulfonated polysulfone materials for desalination membrane applications, ACS Appl. Mater. Interfaces 10(4) (2018) 4102-4112.
[13] N. Al-Qasas, J. Thibault, B. Kruczek, A new characterization method of membranes with nonlinear sorption isotherm systems based on continuous upstream and downstream time-lag measurements, J. Membr. Sci. 542(2017) 91-101.
[14] A. Arfè, G. Corrao, The lag-time approach improved drug-outcome association estimates in presence of protopathic bias, J. Clin. Epidemiol. 78(2016) 101-107.
[15] Y. Chen, Y. Zhang, X. Feng, An improved approach for determining permeability and diffusivity relevant to controlled release, Chem. Eng. Sci. 65(22) (2010) 5921-5928.
[16] D. Wu,A.Gao, H. Zhao, X. Feng,Pervaporative desalinationofhigh-salinity water, Chem. Eng. Res. Des. 136(2018) 154-164.
[17] M. Mujiburohman, Studies on Pervaporation for Aroma Compound Recovery from Aqueous Solutions, Ph.D. Thesis University of Waterloo, Waterloo, Ontario, Canada, 2008.
[18] E.P. Chan, Deswelling of ultrathin molecular layer-by-layer polyamide water desalination membranes, Soft Matter 10(17) (2014) 2949-2954.
[19] Y. Luo, R. Roux, Simulation of osmotic pressure in concentrated aqueous salt solutions, J. Phys. Chem. Lett. 1(1) (2010) 183-189.
[20] M. Frosch, M. Bilde, O.F. Nielsen, From water clustering to osmotic coefficients, J. Phys. Chem. A 114(44) (2010) 11933-11942.
[21] J.A. Rard, D.G. Mlller, Isopiestic determination of the osmotic and activity coefficients of aqueous MgCI₂ solutions at 25℃, J. Chem. Eng. Data 26(1) (1981) 30-43.
[22] M.G. Cacace, E.M. Landau, J.J. Ramsden, The Hofmeister series:Salt and solvent effects on interfacial phenomena, Q. Rev. Biophys. 30(3) (1997) 241-277.
[23] K.D. Collins, M.W. Washabaugh, The Hofmeister effect and the behaviour of water at interfaces, Q. Rev. Biophys. 18(4) (1985) 323-422.
[24] T. López-León, A. Fernández-Nieves, Macroscopically probing the entropic influence of ions:Deswelling neutral microgels with salt, Phys. Rev. E 75(1) (2007), 011801.
[25] J. Schaep, C. Vandecasteele, A.W. Mohammad, W.R. Bowen, Modelling the retention of ionic components for different nanofiltration membranes, Sep. Purif. Technol. 22-23(2001) 169-179.
[26] Z. Xie, M. Hoang, D. Ng, C. Doherty, A. Hill, S. Gray, Effect of heat treatment on pervaporation separation of aqueous salt solution using hybrid PVA/MA/TEOS membrane, Sep. Purif. Technol. 127(2014) 10-17.
[27] H. Ju, A.C. Sagle, B.D. Freeman, J.I. Mardel, A.J. Hill, Characterization of sodium chloride and water transport in crosslinked poly(ethylene oxide) hydrogels, J. Membr. Sci. 358(2010) 131-141.

Salt transport in polymeric pervaporation membrane

Salt transport in polymeric pervaporation membrane

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

[1]	方元祥, GOVIND Rakesh. A New Thiele's Modulus for the Monod Biofilm Model[J]. , 2008, 16(2): 277-286.
[2]	刘春江, 袁希钢. 利用计算流体力学方法研究精馏塔板上的液相流动[J]. , 2002, 10(5): 522-528.