Comparison of NF membranes for desalination purpose and modelling of semi-batch diafiltration

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F10%3A39883083" target="_blank" >RIV/00216275:25310/10:39883083 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Comparison of NF membranes for desalination purpose and modelling of semi-batch diafiltration
Original language description
Diafiltration is used to allow a high level of desalting to be achieved. However, the success of the application of NF for the desalting is related, among other factors, with magnitude of the permeate fluxes decline. Here we show that the dye and salt concentration, the salt rejection and pressure applied are responsible for the decrease of flux values as well as for desalting purposes. We found in the process of desalination of aqueous dye-salt solutions by polymeric NF membranes that cake layer formation of dye molecules on membrane surface, especially at low salt concentrations, was the principal cause of flux decline. Our results demonstrate how the mathematical modelling of NF and description of discontinuous diafiltration by periodically adding solvent at constant pressure difference can be important for prediction of the diafiltration process in the manufacture of liquid dyes.
Czech name
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Czech description
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the19th International Congress of Chemical and Process Engineering
ISBN
978-80-02-02250-3
ISSN
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e-ISSN
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Number of pages
13
Pages from-to
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Publisher name
Česká společnost chemického inženýrství
Place of publication
Praha
Event location
Praha
Event date
Aug 28, 2010
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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