Relating solution physicochemical properties to internal concentration polarization in forward osmosis

作者: Shuaifei Zhao , Linda Zou

DOI: 10.1016/J.MEMSCI.2011.06.021

关键词:

摘要: Abstract Recently forward osmosis (FO) has attracted growing attention on many potential applications such as wastewater treatment, desalination and power generation. FO performance is primarily limited by the presence of internal concentration polarization (ICP), which significantly reduces permeate flux. This study explores relationship between physicochemical properties solution against membrane support layer ICP incorporating constrictivity. Four solutions with different diffusivities, ion/molecule sizes viscosities were systematically investigated using a bench-scale system. It found that in strongly dependent facing layer. When lower aqueous diffusivity but larger size higher viscosity, The phenomenon will be more severe, resulting water identical diffusion direction feed solute flux may reduce effective when layer, high concentrative ICP. These findings have significant implications for development new draw solutes, pretreatment selection orientation.

参考文章(47)
Robert C. Ph.D. Weast, Handbook of Chemistry and Physics ,(1970)
Richard W. Baker, Membrane Technology and Applications ,(1999)
Nathan T. Hancock, Tzahi Y. Cath, Solute Coupled Diffusion in Osmotically Driven Membrane Processes Environmental Science & Technology. ,vol. 43, pp. 6769- 6775 ,(2009) , 10.1021/ES901132X
Jeffrey R. McCutcheon, Robert L. McGinnis, Menachem Elimelech, Desalination by ammonia–carbon dioxide forward osmosis: Influence of draw and feed solution concentrations on process performance Journal of Membrane Science. ,vol. 278, pp. 114- 123 ,(2006) , 10.1016/J.MEMSCI.2005.10.048
R. E. Beck, J. S. Schultz, Hindered Diffusion in Microporous Membranes with Known Pore Geometry Science. ,vol. 170, pp. 1302- 1305 ,(1970) , 10.1126/SCIENCE.170.3964.1302
Alberto Tiraferri, Ngai Yin Yip, William A. Phillip, Jessica D. Schiffman, Menachem Elimelech, Relating performance of thin-film composite forward osmosis membranes to support layer formation and structure Journal of Membrane Science. ,vol. 367, pp. 340- 352 ,(2011) , 10.1016/J.MEMSCI.2010.11.014
Robert L. McGinnis, Menachem Elimelech, Energy requirements of ammonia-carbon dioxide forward osmosis desalination Desalination. ,vol. 207, pp. 370- 382 ,(2007) , 10.1016/J.DESAL.2006.08.012
Gordon T. Gray, Jeffrey R. McCutcheon, Menachem Elimelech, Internal concentration polarization in forward osmosis: role of membrane orientation Desalination. ,vol. 197, pp. 1- 8 ,(2006) , 10.1016/J.DESAL.2006.02.003
Shuren Chou, Lei Shi, Rong Wang, Chuyang Y. Tang, Changquan Qiu, Anthony G. Fane, Characteristics and potential applications of a novel forward osmosis hollow fiber membrane Desalination. ,vol. 261, pp. 365- 372 ,(2010) , 10.1016/J.DESAL.2010.06.027