The influence of sodium chloride on mass transfer in a polyamide nanofiltration membrane at elevated temperatures
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/399088
- author
- Nilsson, Mattias LU ; Trägårdh, Gun LU and Östergren, Karin LU
- organization
- publishing date
- 2006
- 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
- 2023-11-14 06:23:07
@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}}, keywords = {{nanofiltration; elevated temperatures; permeability; salt; membrane performance}}, 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}}, }