Effect of multiple cations in the feed solution on the performance of forward osmosis

Shu, L., Obagbemi, I.J., Jegatheesan, V., Liyanaarachchi, S. and Baskaran, K. 2015, Effect of multiple cations in the feed solution on the performance of forward osmosis, Desalination and water treatment, vol. 54, no. 4-5, pp. 845-852, doi: 10.1080/19443994.2014.908418.

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Title Effect of multiple cations in the feed solution on the performance of forward osmosis
Author(s) Shu, L.
Obagbemi, I.J.
Jegatheesan, V.
Liyanaarachchi, S.
Baskaran, K.ORCID iD for Baskaran, K. orcid.org/0000-0002-3011-6632
Journal name Desalination and water treatment
Volume number 54
Issue number 4-5
Start page 845
End page 852
Total pages 8
Publisher Taylor & Francis
Place of publication Abingdon, Eng.
Publication date 2015
ISSN 1944-3994
Keyword(s) Dilutive internal concentration polarisation (DICP)
Forward osmosis
Reflection coefficient
Salt aggregate
Water cluster
Water flux
Summary In this study, different combinations of feed stream such as 0.2, 0.3 and 0.4 M of CaCl2 were, respectively, added with 1.0, 0.9 and 0.8 M of NaCl while maintaining the draw solution concentration at either 2.0 M of NaCl or CaCl2 in order to compare likely changes to the flux generated when the feed stream contained NaCl only. The results obtained showed that more constituents in feed stream generated lesser flux. Increase in CaCl2 concentration in feed stream resulted in more severe dilutive internal concentration polarisation (DICP) and hence, reduction in the performance ratio. The temperature and distribution of aggregated particle size also played a significant role in the overall performance of forward osmosis process. Further analysis showed that there is a relationship between the normalised driving force and flux behaviour which is governed by the effect of DICP. Additionally, the reflection coefficient was not unity as less than 2% traces of salt was found to permeate alongside with water towards the draw solution side. © 2014 © 2014 Balaban Desalination Publications. All rights reserved.
Language eng
DOI 10.1080/19443994.2014.908418
Field of Research 090404 Membrane and Separation Technologies
Socio Economic Objective 829803 Management of Liquid Waste from Plant Production (excl. Water)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Taylor & Francis
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069516

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