A closed-loop forward osmosis-nanofiltration hybrid system: Understanding process implications through full-scale simulation

Handle URI:
http://hdl.handle.net/10754/622160
Title:
A closed-loop forward osmosis-nanofiltration hybrid system: Understanding process implications through full-scale simulation
Authors:
Phuntsho, Sherub; Kim, Jung Eun; Hong, Seungkwan; Ghaffour, Noreddine ( 0000-0003-2095-4736 ) ; Leiknes, TorOve ( 0000-0003-4046-5622 ) ; Choi, Joon Yong; Shon, Ho Kyong
Abstract:
This study presents simulation of a closed-loop forward osmosis (FO)-nanofiltration (NF) hybrid system using fertiliser draw solution (DS) based on thermodynamic mass balance in a full-scale system neglecting the non-idealities such as finite membrane area that may exist in a real process. The simulation shows that the DS input parameters such as initial concentrations and its flow rates cannot be arbitrarily selected for a plant with defined volume output. For a fixed FO-NF plant capacity and feed concentration, the required initial DS flow rate varies inversely with the initial DS concentration or vice-versa. The net DS mass flow rate, a parameter constant for a fixed plant capacity but that increases linearly with the plant capacity and feed concentration, is the most important operational parameter of a closed-loop system. Increasing either of them or both increases the mass flow rate to the system directly affecting the final concentration of the diluted DS with direct energy implications to the NF process. Besides, the initial DS concentration and flow rates are also limited by the optimum recovery rates at which NF process can be operated which otherwise also have direct implications to the NF energy. This simulation also presents quantitative analysis of the reverse diffusion of fertiliser nutrients towards feed brine and the gradual accumulation of feed solutes within the closed system.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC)
Citation:
Phuntsho S, Kim JE, Hong S, Ghaffour N, Leiknes T, et al. (2016) A closed-loop forward osmosis-nanofiltration hybrid system: Understanding process implications through full-scale simulation. Desalination. Available: http://dx.doi.org/10.1016/j.desal.2016.12.010.
Publisher:
Elsevier BV
Journal:
Desalination
Issue Date:
30-Dec-2016
DOI:
10.1016/j.desal.2016.12.010
Type:
Article
ISSN:
0011-9164
Sponsors:
This research was supported under various funding: Industrial Facilities & Infrastructure Research Program (14IFIP-B087385-01) by the Ministry of Land, Infrastructure and Transport of the South Korean Government, King Abdullah University of Science and Technology (KAUST), Saudi Arabia, National Centre for Excellence in Desalination Australia (NCEDA), ARC Future Fellowship (FT140101208) and University of Technology Sydney chancellor's postdoctoral research fellowship.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0011916416310694
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.authorPhuntsho, Sheruben
dc.contributor.authorKim, Jung Eunen
dc.contributor.authorHong, Seungkwanen
dc.contributor.authorGhaffour, Noreddineen
dc.contributor.authorLeiknes, TorOveen
dc.contributor.authorChoi, Joon Yongen
dc.contributor.authorShon, Ho Kyongen
dc.date.accessioned2017-01-02T08:42:34Z-
dc.date.available2017-01-02T08:42:34Z-
dc.date.issued2016-12-30en
dc.identifier.citationPhuntsho S, Kim JE, Hong S, Ghaffour N, Leiknes T, et al. (2016) A closed-loop forward osmosis-nanofiltration hybrid system: Understanding process implications through full-scale simulation. Desalination. Available: http://dx.doi.org/10.1016/j.desal.2016.12.010.en
dc.identifier.issn0011-9164en
dc.identifier.doi10.1016/j.desal.2016.12.010en
dc.identifier.urihttp://hdl.handle.net/10754/622160-
dc.description.abstractThis study presents simulation of a closed-loop forward osmosis (FO)-nanofiltration (NF) hybrid system using fertiliser draw solution (DS) based on thermodynamic mass balance in a full-scale system neglecting the non-idealities such as finite membrane area that may exist in a real process. The simulation shows that the DS input parameters such as initial concentrations and its flow rates cannot be arbitrarily selected for a plant with defined volume output. For a fixed FO-NF plant capacity and feed concentration, the required initial DS flow rate varies inversely with the initial DS concentration or vice-versa. The net DS mass flow rate, a parameter constant for a fixed plant capacity but that increases linearly with the plant capacity and feed concentration, is the most important operational parameter of a closed-loop system. Increasing either of them or both increases the mass flow rate to the system directly affecting the final concentration of the diluted DS with direct energy implications to the NF process. Besides, the initial DS concentration and flow rates are also limited by the optimum recovery rates at which NF process can be operated which otherwise also have direct implications to the NF energy. This simulation also presents quantitative analysis of the reverse diffusion of fertiliser nutrients towards feed brine and the gradual accumulation of feed solutes within the closed system.en
dc.description.sponsorshipThis research was supported under various funding: Industrial Facilities & Infrastructure Research Program (14IFIP-B087385-01) by the Ministry of Land, Infrastructure and Transport of the South Korean Government, King Abdullah University of Science and Technology (KAUST), Saudi Arabia, National Centre for Excellence in Desalination Australia (NCEDA), ARC Future Fellowship (FT140101208) and University of Technology Sydney chancellor's postdoctoral research fellowship.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0011916416310694en
dc.subjectForward osmosisen
dc.subjectNanofiltrationen
dc.subjectFertigationen
dc.subjectSimulationen
dc.subjectDesalinationen
dc.titleA closed-loop forward osmosis-nanofiltration hybrid system: Understanding process implications through full-scale simulationen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalDesalinationen
dc.contributor.institutionCentre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney (UTS), 15 Broadway, Ultimo, NSW 2007, Australiaen
dc.contributor.institutionSchool of Civil, Environmental & Architectural Engineering, Korea University, 1, 5-ka, Anam-Dong, Sungbuk-Gu, Seoul 136-713, Republic of Koreaen
dc.contributor.institutionHyorim Industries Inc., Yatap-dong, Bundang-gu, Seongnam-City, 513-2, Gyeonggi-do, Republic of Koreaen
kaust.authorGhaffour, Noreddineen
kaust.authorLeiknes, TorOveen
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