Environmental and economic assessment of hybrid FO-RO/NF system with selected inorganic draw solutes for the treatment of mine impaired water

Handle URI:
http://hdl.handle.net/10754/626993
Title:
Environmental and economic assessment of hybrid FO-RO/NF system with selected inorganic draw solutes for the treatment of mine impaired water
Authors:
Kim, Jung Eun; Phuntsho, Sherub; Chekli, Laura; Choi, Joon Yong; Shon, Ho Kyong
Abstract:
A hybrid forward osmosis (FO) and reverse osmosis (RO)/nanofiltration (NF) system in a closed-loop operation with selected draw solutes was evaluated to treat coal mine impaired water. This study provides an insight of selecting the most suitable draw solution (DS) by conducting environmental and economic life cycle assessment (LCA). Baseline environmental LCA showed that the dominant components to energy use and global warming are the DS recovery processes (i.e. RO or NF processes) and FO membrane materials, respectively. When considering the DS replenishment in FO, the contribution of chemical use to the overall global warming impact was significant for all hybrid systems. Furthermore, from an environmental perspective, the FO-NF hybrid system with Na2SO4 shows the lowest energy consumption and global warming with additional considerations of final product water quality and FO brine disposal. From an economic perspective, the FO-NF with Na2SO4 showed the lowest total operating cost due to its lower DS loss and relatively low solute cost. In a closed-loop system, FO-NF with NaCl and Na2SO4 had the lowest total water cost at optimum NF recovery rates of 90 and 95%, respectively. FO-NF with Na2SO4 had the lowest environmental and economic impacts. Overall, draw solute performances and cost in FO and recovery rate in RO/NF play a crucial role in determining the total water cost and environmental impact of FO hybrid systems in a closed-loop operation.
Citation:
Kim JE, Phuntsho S, Chekli L, Choi JY, Shon HK (2018) Environmental and economic assessment of hybrid FO-RO/NF system with selected inorganic draw solutes for the treatment of mine impaired water. Desalination 429: 96–104. Available: http://dx.doi.org/10.1016/j.desal.2017.12.016.
Publisher:
Elsevier BV
Journal:
Desalination
Issue Date:
1-Jan-2018
DOI:
10.1016/j.desal.2017.12.016
Type:
Article
ISSN:
0011-9164
Sponsors:
The authors acknowledge the financial support of the National Centre of Excellence in Desalination Australia which is funded by the Australian Government through the National Urban Water and Desalination Plan. Funding for this research was also provided by Industrial Facilities & Infrastructure Research Program (code 17IFIP-B088091-04) by Ministry of Land, Infrastructure and Transport of 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.
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Full metadata record

DC FieldValue Language
dc.contributor.authorKim, Jung Eunen
dc.contributor.authorPhuntsho, Sheruben
dc.contributor.authorChekli, Lauraen
dc.contributor.authorChoi, Joon Yongen
dc.contributor.authorShon, Ho Kyongen
dc.date.accessioned2018-02-01T08:12:00Z-
dc.date.available2018-02-01T08:12:00Z-
dc.date.issued2018-01-01en
dc.identifier.citationKim JE, Phuntsho S, Chekli L, Choi JY, Shon HK (2018) Environmental and economic assessment of hybrid FO-RO/NF system with selected inorganic draw solutes for the treatment of mine impaired water. Desalination 429: 96–104. Available: http://dx.doi.org/10.1016/j.desal.2017.12.016.en
dc.identifier.issn0011-9164en
dc.identifier.doi10.1016/j.desal.2017.12.016en
dc.identifier.urihttp://hdl.handle.net/10754/626993-
dc.description.abstractA hybrid forward osmosis (FO) and reverse osmosis (RO)/nanofiltration (NF) system in a closed-loop operation with selected draw solutes was evaluated to treat coal mine impaired water. This study provides an insight of selecting the most suitable draw solution (DS) by conducting environmental and economic life cycle assessment (LCA). Baseline environmental LCA showed that the dominant components to energy use and global warming are the DS recovery processes (i.e. RO or NF processes) and FO membrane materials, respectively. When considering the DS replenishment in FO, the contribution of chemical use to the overall global warming impact was significant for all hybrid systems. Furthermore, from an environmental perspective, the FO-NF hybrid system with Na2SO4 shows the lowest energy consumption and global warming with additional considerations of final product water quality and FO brine disposal. From an economic perspective, the FO-NF with Na2SO4 showed the lowest total operating cost due to its lower DS loss and relatively low solute cost. In a closed-loop system, FO-NF with NaCl and Na2SO4 had the lowest total water cost at optimum NF recovery rates of 90 and 95%, respectively. FO-NF with Na2SO4 had the lowest environmental and economic impacts. Overall, draw solute performances and cost in FO and recovery rate in RO/NF play a crucial role in determining the total water cost and environmental impact of FO hybrid systems in a closed-loop operation.en
dc.description.sponsorshipThe authors acknowledge the financial support of the National Centre of Excellence in Desalination Australia which is funded by the Australian Government through the National Urban Water and Desalination Plan. Funding for this research was also provided by Industrial Facilities & Infrastructure Research Program (code 17IFIP-B088091-04) by Ministry of Land, Infrastructure and Transport of 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.subjectLife cycle assessmenten
dc.subjectForward osmosisen
dc.subjectReverse osmosisen
dc.subjectNanofiltrationen
dc.subjectDraw solutionen
dc.subjectSpecific reverse salt fluxen
dc.titleEnvironmental and economic assessment of hybrid FO-RO/NF system with selected inorganic draw solutes for the treatment of mine impaired wateren
dc.typeArticleen
dc.identifier.journalDesalinationen
dc.contributor.institutionCentre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, (UTS), Broadway, NSW 2007, Australiaen
dc.contributor.institutionHyorim Industries Inc., Yatap-dong, Bundang-gu, Seongnam-city 513-2, Gyeonggi-do, Republic of Koreaen
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