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dc.contributor.authorDuan, Jintang
dc.contributor.authorLitwiller, Eric
dc.contributor.authorChoi, Seung Hak
dc.contributor.authorPinnau, Ingo
dc.date.accessioned2015-08-03T11:47:48Z
dc.date.available2015-08-03T11:47:48Z
dc.date.issued2014-03
dc.identifier.issn03767388
dc.identifier.doi10.1016/j.memsci.2013.11.029
dc.identifier.urihttp://hdl.handle.net/10754/563407
dc.description.abstractSodium lignin sulfonate (NaLS), an abundant waste product of paper manufacturing, can be used in desert restoration. Combined with water and applied on arid land, NaLS has been shown to stabilize sand and provide a medium for plant growth. Here, we demonstrate that NaLS is an efficient draw solute in forward osmosis (FO) to extract water from impaired sources. The osmotic pressure of a 600. g. NaLS/kg water solution is 78. bar (7.8 MPa) as measured by freezing point depression. The FO performance using NaLS draw solute was evaluated with commercial FO membranes under various test conditions. The effects of draw solute concentration, feed salinity and membrane orientation were systematically investigated. Potential ways to optimize the process, e.g. combining fertilizer draw solutes and NaLS, are proposed. © 2013 Elsevier B.V.
dc.description.sponsorshipThis research was supported by King Abdullah University of Science and Technology baseline funding for Ingo Pinnau, The authors acknowledge HTI for providing FO membranes for this research. The authors also acknowledge Dr. Federico Pacheco for valuable discussions.
dc.publisherElsevier BV
dc.subjectDesert restoration
dc.subjectDraw solute
dc.subjectForward osmosis
dc.subjectPolyelectrolyte
dc.subjectSodium lignin sulfonate
dc.titleEvaluation of sodium lignin sulfonate as draw solute in forward osmosis for desert restoration
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.contributor.departmentChemical and Biological Engineering Program
dc.identifier.journalJournal of Membrane Science
kaust.personDuan, Jintang
kaust.personLitwiller, Eric
kaust.personPinnau, Ingo
kaust.personChoi, Seung Hak


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