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The influence of sodium chloride on mass transfer in a polyamide nanofiltration membrane at elevated temperatures

Nilsson, Mattias LU ; Trägårdh, Gun LU and Östergren, Karin LU (2006) In Journal of Membrane Science 280(1-2). p.928-936
Abstract
The influence of temperature (20-50 degrees C) and NaCl on mass transfer of pure water and glucose solution (0.0055 M) using an Alfa Laval NFT-50 nanotiltration membrane has been investigated. Addition of 0.017 M NaCl(aq) increased the membrane permeability in comparison to measurements with pure water. Performing cyclic temperature variations using a membrane pre-treated with 0.20 M NaC](aq) caused the membrane permeability to decrease for each time a new maximum temperature was reached. After NaCl pre-treatment, the relative flux decline measured over 4 h was found to be greater for glucose than for water, and the rate of the flux decline for both water and glucose increased with temperature (20-50 degrees C). The permeability was found... (More)
The influence of temperature (20-50 degrees C) and NaCl on mass transfer of pure water and glucose solution (0.0055 M) using an Alfa Laval NFT-50 nanotiltration membrane has been investigated. Addition of 0.017 M NaCl(aq) increased the membrane permeability in comparison to measurements with pure water. Performing cyclic temperature variations using a membrane pre-treated with 0.20 M NaC](aq) caused the membrane permeability to decrease for each time a new maximum temperature was reached. After NaCl pre-treatment, the relative flux decline measured over 4 h was found to be greater for glucose than for water, and the rate of the flux decline for both water and glucose increased with temperature (20-50 degrees C). The permeability was found to be unaffected by the pressure if the membrane had previously been rinsed at a lower pressure but at a higher temperature. Changes in permeability due to the presence of NaCl could be related to interactions in the active polymer layer of the membrane. MgCl2 pre-treatment influenced the membrane permeability less that NaCl pre-treatment. (c) 2006 Elsevier B.V. All rights reserved. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
nanofiltration, elevated temperatures, permeability, salt, membrane performance
in
Journal of Membrane Science
volume
280
issue
1-2
pages
928 - 936
publisher
Elsevier
external identifiers
  • wos:000239472900106
  • scopus:33745714042
ISSN
0376-7388
DOI
10.1016/j.memsci.2006.03.013
language
English
LU publication?
yes
id
dc3328dd-ade1-4c86-9aa5-4a69d6bc1322 (old id 399088)
date added to LUP
2016-04-01 16:10:19
date last changed
2021-04-20 01:14:56
@article{dc3328dd-ade1-4c86-9aa5-4a69d6bc1322,
  abstract     = {The influence of temperature (20-50 degrees C) and NaCl on mass transfer of pure water and glucose solution (0.0055 M) using an Alfa Laval NFT-50 nanotiltration membrane has been investigated. Addition of 0.017 M NaCl(aq) increased the membrane permeability in comparison to measurements with pure water. Performing cyclic temperature variations using a membrane pre-treated with 0.20 M NaC](aq) caused the membrane permeability to decrease for each time a new maximum temperature was reached. After NaCl pre-treatment, the relative flux decline measured over 4 h was found to be greater for glucose than for water, and the rate of the flux decline for both water and glucose increased with temperature (20-50 degrees C). The permeability was found to be unaffected by the pressure if the membrane had previously been rinsed at a lower pressure but at a higher temperature. Changes in permeability due to the presence of NaCl could be related to interactions in the active polymer layer of the membrane. MgCl2 pre-treatment influenced the membrane permeability less that NaCl pre-treatment. (c) 2006 Elsevier B.V. All rights reserved.},
  author       = {Nilsson, Mattias and Trägårdh, Gun and Östergren, Karin},
  issn         = {0376-7388},
  language     = {eng},
  number       = {1-2},
  pages        = {928--936},
  publisher    = {Elsevier},
  series       = {Journal of Membrane Science},
  title        = {The influence of sodium chloride on mass transfer in a polyamide nanofiltration membrane at elevated temperatures},
  url          = {http://dx.doi.org/10.1016/j.memsci.2006.03.013},
  doi          = {10.1016/j.memsci.2006.03.013},
  volume       = {280},
  year         = {2006},
}