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High Flux Polyamide Composite Hollow Fiber Membranes for Reverse Osmosis Applications

Published online by Cambridge University Press:  01 February 2011

Ian D. Norris ,
Malcolm C. Morrison  and
Benjamin R. Mattes
Ian D. Norris
Affiliation:
[email protected], Santa Fe Science and Technology, 3216 Richards lane, Santa Fe, NM, 87507, United States, 505 474 3500, 505 474 9489
Malcolm C. Morrison
Affiliation:
[email protected], Santa Fe Science and Technology, 3216 Richards Lane, Santa Fe, NM, 87507, United States
Benjamin R. Mattes
Affiliation:
[email protected], Santa Fe Science and Technology, 3216 Richards Lane, Santa Fe, NM, 87507, United States
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Abstract

High flux composite hollow fiber membranes for brackish water desalination based on the interfacial polymerization of a cross-linked polyamide salt rejecting layer onto a semi-permeable hollow fiber support have been developed. These hollow fiber membranes exploit the advantages of using a thin-film composite reverse osmosis membrane (higher flux and salt rejection) with the higher surface area/volume ratio of hollow fiber membrane elements. The composite hollow fiber membranes were prepared by coating a polysulfone hollow fiber with a polyamide salt rejecting layer based on the interfacial polymerization reaction between m-phenylenediamine and trimesoyl chloride/isophthaloyl dichloride. The RO figures-of-merit of these composite polyamide hollow fiber membranes were evaluated for the desalination of a synthetic brackish water feed (2,000 ppm NaCl) at 225 psi over a 60 hour period. After an initial break-in period in which the flux declined 30% due to membrane compaction, the stabilized RO figures-of-merit for these hollow fiber membranes were a water flux of 280 L/m2·day and a salt rejection of 99.1%. Based on the water flux and packing density of the membrane, it is estimated that the stable production of potable water of a hollow fiber membrane element containing these composite membranes will be between 20 and 30% greater than that of a similarly sized spiral wound brackish water membrane element.

Keywords

polymerizationwaste managementsurface chemistry
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 930: Symposium JJ – Materials Science of Water Purification , 2006 , 0930-JJ01-07
Copyright
Copyright © Materials Research Society 2006

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References

1. Ahmed, A.M. and Moch, I., Desalination, 82, 3 (1991).Google Scholar
2. Cabasso, I. and Tamvakis, A.P., J. Appl. Poly. Sci., 23, 1509 (1979).Google Scholar
3. Davis, R.B., Burchesky, R.D., and Coplan, M.J., Desalination, 22, 221 (1977)Google Scholar
4. Cadotte, J.E., US Patent No. 4,277,344 (July 7, 1981).Google Scholar
5. Tomaschke, J.E., US Patent No. 4,872,984 (October 10, 1989).Google Scholar
6. Rao, A.P., Desai, N.V. and Rangarajan, R., J. Membrane Sci., 124, 263 (1997).Google Scholar
7. Yoon, Y. and Lueptow, R.M., Water Res., 39, 3298 (2005).Google Scholar
8. Peterson, R.J. and Cadotte, J.E., in Handbook of Industrial Membrane Technology, edited by Porter, M.C., (Noyes Publications, Park Ridge, 1990), Chapter 4.Google Scholar
9. Chapman, M., The Desalting and Water Treatment Membrane Manual, A Guide to Membranes for Municipal Water Treatment, 2nd ed. (USBR, Denver 1998), Chapter 10.Google Scholar