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dc.contributor.authorValladares Linares, Rodrigo
dc.contributor.authorLi, Zhenyu
dc.contributor.authorAbu Ghdaid, Muhanned
dc.contributor.authorWei, Chunhai
dc.contributor.authorAmy, Gary L.
dc.contributor.authorVrouwenvelder, Johannes S.
dc.date.accessioned2015-08-03T11:34:47Z
dc.date.available2015-08-03T11:34:47Z
dc.date.issued2013-11
dc.identifier.issn03767388
dc.identifier.doi10.1016/j.memsci.2013.07.018
dc.identifier.urihttp://hdl.handle.net/10754/563057
dc.description.abstractForward osmosis (FO) presents a unique opportunity for integrated wastewater treatment and seawater desalination. This study assesses the efficiency of a submerged FO system to reduce the volume of wastewater that needs to be treated while recovering high quality water that can be further treated for sustainable fresh water production. A semi-batch operation was employed with two membrane orientations in terms of active and support layers. A change of membrane orientation could improve the flux and slightly reduce the salt leakage from the draw solution to the feed solution. The formation of fouling on the membrane resulted in a decrease of the initial flux and average flux with both membrane orientations. The fouling layer on the membrane surface was determined to be caused by biopolymer-like substances. Osmotic backwash removed almost all organic foulants from the membrane surface, but did not improve the flux. There was a moderate to high retention of nutrients (N and P), varying from 56% to 99%, and almost a complete retention for trace metals regardless of membrane orientation. However the membrane showed a limited ability to retain low molecular weight acids and low molecular weight neutral compounds. This study identified a possible role of the FO process to integrate wastewater treatment and seawater desalination for a sustainable solution of the water-energy nexus for coastal cities. © 2013 Elsevier B.V..
dc.description.sponsorshipThe authors thank the kind contribution of Hydration Technology Innovations for providing the FO membranes. The authors appreciate the help of the WDRC laboratory staff for their assistance in this work. The authors acknowledge the financial support of GS E&C from South Korea to complete this research.
dc.publisherElsevier BV
dc.subjectDesalination
dc.subjectForward osmosis
dc.subjectMembrane fouling
dc.subjectOsmotic backwash
dc.subjectWater reclamation
dc.titleWater harvesting from municipal wastewater via osmotic gradient: An evaluation of process performance
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalJournal of Membrane Science
dc.contributor.institutionDepartment for Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 67, 2628 BC Delft, Netherlands
dc.contributor.institutionWetsus, Centre of Excellence for Sustainable Water Technology, Agora 1, P.O. Box 1113, 8900 CC Leeuwarden, Netherlands
kaust.personValladares Linares, Rodrigo
kaust.personLi, Zhenyu
kaust.personWei, Chunhai
kaust.personAmy, Gary L.
kaust.personVrouwenvelder, Johannes S.
kaust.personAbu Ghdaid, Muhanned


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