Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique
Name
ReverseOsmosisDesalinationMembraneFormedFromWeakPolyelectrolytesbySpinAssistedLayerByLayerTechnique.pdf
Description
Accepted version
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474.78 KB
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Adobe PDF
Checksum (MD5)
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Author(s)
Fadhillah, Farid
Zaidi, S. M. Javaid
Khan, Zafarullah
Hammond, Paula T
Date Issued
August 2012
Journal
Desalination and Water Treatment
Publisher
Informa UK Limited
Citation
Fadhillah, Farid, S. M. Javaid Zaidi, Zafarullah Kahn, and Paula T. Hammond. "Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique." Desalination and Water Treatment, 34,1-3 (2011):p.44-49.
Version
Author's final manuscript
Abstract
Thin film bi-polar membranes were prepared by depositing alternate layers of polyallylamine hydrochloride (PAH) and polyacrylic acid (PAA) by Spin Assisted Layer-by-Layer (SA-LbL) coating technique. These polyionic coatings were deposited on silicon wafer substrates as well as on polysulfone ultrafiltration (UF) membranes. The suitability of these coated membranes for use as reverse osmosis seawater desalination membranes was investigated using a single pass-cross flow permeation test cell. Membrane testing showed that with only 35 bi-layers of PAH/PAA on a polysulfone ultra filtration membranes, NaCl rejection of 88% and water permeability of 0.22 l.m-2h-1bar-1 was achieved for feed water with NaCl concentration of 15000 ppm and pressure of 700 psig. Keywords: Reverse Osmosis, Nanofiltration, Membranes, Spin Assisted Layer-by-Layer, PAA/ PAH, Polysulfone, Plasma
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.5004/dwt.2011.2856
