Mass balance for a novel RO/FO hybrid system in seawater desalination

Liyanaarachchi, S., Jegatheesan, V., Muthukumaran, S., Gray, Stephen and Shu, L. 2016, Mass balance for a novel RO/FO hybrid system in seawater desalination, Journal of membrane science, vol. 501, pp. 199-208, doi: 10.1016/j.memsci.2015.11.047.

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Title Mass balance for a novel RO/FO hybrid system in seawater desalination
Author(s) Liyanaarachchi, S.
Jegatheesan, V.
Muthukumaran, S.
Gray, Stephen
Shu, L.
Journal name Journal of membrane science
Volume number 501
Start page 199
End page 208
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-03-01
ISSN 0376-7388
1873-3123
Keyword(s) desalination
forward osmosis
membrane
pre-treatment sludge
water recovery
Summary Seawater Reverse Osmosis (SWRO) desalination is being used by several countries to aid the current demand for fresh water, hence numerous large scale and small scale desalination plants have been built during last decade. Despite major advancements in SWRO technology, the desalination industry is still facing significant practical issues. Two of the major issues are (1) generation of higher volumes of pre-treatment sludge, and (2) overall water recovery. This paper proposes a novel hybrid reverse osmosis (RO) - forward osmosis (FO) system to overcome the above two drawbacks. Mass balance calculations based on laboratory experiments have been used to predict increased water recovery and reduced pre-treatment sludge volume arising from large scale (340,000 m3/day of intake) and small scale (15,000 m3/day of intake) hybrid SWRO desalination plants. The percentage reduction of pre-treatment sludge volume, increase in overall RO water recovery, FO membrane area required and dilution in RO reject have been estimated.
Language eng
DOI 10.1016/j.memsci.2015.11.047
Field of Research 090404 Membrane and Separation Technologies
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30085420

Document type: Journal Article
Collection: School of Engineering
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