Impact of reverse nutrient diffusion on membrane biofouling in fertilizer-drawn forward osmosis

Handle URI:
http://hdl.handle.net/10754/624036
Title:
Impact of reverse nutrient diffusion on membrane biofouling in fertilizer-drawn forward osmosis
Authors:
Li, Sheng; Kim, Youngjin; Chekli, Laura; Phuntsho, Sherub; Shon, Ho Kyong; Leiknes, TorOve ( 0000-0003-4046-5622 ) ; Ghaffour, Noreddine ( 0000-0003-2095-4736 )
Abstract:
Biofouling in fertilizer-drawn forward osmosis (FDFO) for water reuse was investigated by spiking pure bacteria species Pseudomonas aeruginosa PAO1+GFP and using three different fertilizers KNO3, KCl and KH2PO4 as draw solutions. The performance of FO process for treating synthetic wastewater was assessed and their influence on the membrane fouling and in particular biofouling was evaluated relative to the type of different fertilizers used and their rates of reverse diffusion. FO performances using KNO3 as draw solute exhibited severer flux decline (63%) than when using KCl (45%) and KH2PO4 (30%). Membrane autopsy indicated that the mass of organic foulants and biomass on fouled membrane surface using KNO3 as draw solute (947.5mg/m2 biopolymers, 72µm biofilm thickness and 53.3mg/m2 adenosine triphosphate) were significantly higher than that using KCl (450mg/m2 biopolymers, 33µm biofilm thickness and 28.2mg/m2 ATP) and KH2PO4 (440mg/m2 biopolymers, 35µm biofilm thickness and 33.5mg/m2 ATP). This higher flux decline is likely related to the higher reverse diffusion of KNO3 (19.8g/m2/h) than KCl (5.1g/m2/h) and KH2PO4 (3.7g/m2/h). The reverse diffused potassium could promote the organics and bacterial adhesion on FO membrane via charge screening effect and compression of electrical double layer. Moreover, reverse diffused nitrate provided increased N:P nutrient ratio was favorable for the bacteria to grow on the feed side of the FO membrane.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)
Citation:
Li S, Kim Y, Chekli L, Phuntsho S, Shon HK, et al. (2017) Impact of reverse nutrient diffusion on membrane biofouling in fertilizer-drawn forward osmosis. Journal of Membrane Science 539: 108–115. Available: http://dx.doi.org/10.1016/j.memsci.2017.05.074.
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
Issue Date:
31-May-2017
DOI:
10.1016/j.memsci.2017.05.074
Type:
Article
ISSN:
0376-7388
Sponsors:
The research reported in this paper was supported from the SEED program of King Abdullah University of Science and Technology (KAUST), Saudi Arabia, ARC Future Fellowship (FT140101208) and University of Technology Sydney (UTS) chancellor's postdoctoral research fellowship. The help, assistance and support of the Water Desalination and Reuse Center (WDRC) staff are greatly appreciated.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0376738816318890
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLi, Shengen
dc.contributor.authorKim, Youngjinen
dc.contributor.authorChekli, Lauraen
dc.contributor.authorPhuntsho, Sheruben
dc.contributor.authorShon, Ho Kyongen
dc.contributor.authorLeiknes, TorOveen
dc.contributor.authorGhaffour, Noreddineen
dc.date.accessioned2017-06-05T06:02:24Z-
dc.date.available2017-06-05T06:02:24Z-
dc.date.issued2017-05-31en
dc.identifier.citationLi S, Kim Y, Chekli L, Phuntsho S, Shon HK, et al. (2017) Impact of reverse nutrient diffusion on membrane biofouling in fertilizer-drawn forward osmosis. Journal of Membrane Science 539: 108–115. Available: http://dx.doi.org/10.1016/j.memsci.2017.05.074.en
dc.identifier.issn0376-7388en
dc.identifier.doi10.1016/j.memsci.2017.05.074en
dc.identifier.urihttp://hdl.handle.net/10754/624036-
dc.description.abstractBiofouling in fertilizer-drawn forward osmosis (FDFO) for water reuse was investigated by spiking pure bacteria species Pseudomonas aeruginosa PAO1+GFP and using three different fertilizers KNO3, KCl and KH2PO4 as draw solutions. The performance of FO process for treating synthetic wastewater was assessed and their influence on the membrane fouling and in particular biofouling was evaluated relative to the type of different fertilizers used and their rates of reverse diffusion. FO performances using KNO3 as draw solute exhibited severer flux decline (63%) than when using KCl (45%) and KH2PO4 (30%). Membrane autopsy indicated that the mass of organic foulants and biomass on fouled membrane surface using KNO3 as draw solute (947.5mg/m2 biopolymers, 72µm biofilm thickness and 53.3mg/m2 adenosine triphosphate) were significantly higher than that using KCl (450mg/m2 biopolymers, 33µm biofilm thickness and 28.2mg/m2 ATP) and KH2PO4 (440mg/m2 biopolymers, 35µm biofilm thickness and 33.5mg/m2 ATP). This higher flux decline is likely related to the higher reverse diffusion of KNO3 (19.8g/m2/h) than KCl (5.1g/m2/h) and KH2PO4 (3.7g/m2/h). The reverse diffused potassium could promote the organics and bacterial adhesion on FO membrane via charge screening effect and compression of electrical double layer. Moreover, reverse diffused nitrate provided increased N:P nutrient ratio was favorable for the bacteria to grow on the feed side of the FO membrane.en
dc.description.sponsorshipThe research reported in this paper was supported from the SEED program of King Abdullah University of Science and Technology (KAUST), Saudi Arabia, ARC Future Fellowship (FT140101208) and University of Technology Sydney (UTS) chancellor's postdoctoral research fellowship. The help, assistance and support of the Water Desalination and Reuse Center (WDRC) staff are greatly appreciated.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0376738816318890en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Membrane Science, [, , (2017-05-31)] DOI: 10.1016/j.memsci.2017.05.074 . © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectForward osmosisen
dc.subjectFertilizeren
dc.subjectReverse diffusionen
dc.subjectBiofoulingen
dc.subjectWater reuseen
dc.titleImpact of reverse nutrient diffusion on membrane biofouling in fertilizer-drawn forward osmosisen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalJournal of Membrane Scienceen
dc.eprint.versionPost-printen
dc.contributor.institutionSchool of Civil and Environmental Engineering, University of Technology, Sydney (UTS), Post Box 129, Broadway, NSW 2007, Australiaen
dc.contributor.institutionSchool of Civil, Environmental and Architectural Engineering, Korea University, 1-5 Ga, Anam-Dong, Seongbuk-Gu, Seoul, 136-713, Republic of Koreaen
kaust.authorLi, Shengen
kaust.authorLeiknes, TorOveen
kaust.authorGhaffour, Noreddineen
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