Hybrid Pressure Retarded Osmosis−Membrane Distillation (PRO−MD) Process for Osmotic Power and Clean Water Generation

Handle URI:
http://hdl.handle.net/10754/555747
Title:
Hybrid Pressure Retarded Osmosis−Membrane Distillation (PRO−MD) Process for Osmotic Power and Clean Water Generation
Authors:
Han, Gang; Zuo, Jian; Wan, Chunfeng; Chung, Neal Tai-Shung ( 0000-0003-3704-8609 )
Abstract:
A novel pressure retarded osmosis−membrane distillation (PRO−MD) hybrid process has been experimentally conceived for sustainable production of renewable osmotic power and clean water from various waters. The proposed PRO−MD system may possess unique advantages of high water recovery rate, huge osmotic power generation, well controlled membrane fouling, and minimal environmental impacts. Experimental results show that the PRO−MD hybrid process is promising that not only can harvest osmotic energy from freshwater but also from wastewater. When employing a 2 M NaCl MD concentrate as the draw solution, ultrahigh power densities of 31.0 W/m2 and 9.3 W/m2 have been demonstrated by the PRO subsystem using deionized water and real wastewater brine as the feeds, respectively. Simultaneously, high purity potable water with a flux of 32.5−63.1 L/(m2.h) can be produced by the MD subsystem at 40−60 °C without any detrimental effects of fouling. The energy consumption in the MD subsystem might be further reduced by applying a heat exchanger in the hybrid system and using low-grade heat or solar energy to heat up the feed solution. The newly developed PRO−MD hybrid process would provide insightful guidelines for the exploration of alternative green technologies for renewable osmotic energy and clean water production.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
Hybrid Pressure Retarded Osmosis−Membrane Distillation (PRO−MD) Process for Osmotic Power and Clean Water Generation 2015 Environ. Sci.: Water Res. Technol.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Environ. Sci.: Water Res. Technol.
Issue Date:
20-May-2015
DOI:
10.1039/C5EW00127G
Type:
Article
ISSN:
2053-1400; 2053-1419
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2015/EW/C5EW00127G
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorHan, Gangen
dc.contributor.authorZuo, Jianen
dc.contributor.authorWan, Chunfengen
dc.contributor.authorChung, Neal Tai-Shungen
dc.date.accessioned2015-05-26T07:05:26Zen
dc.date.available2015-05-26T07:05:26Zen
dc.date.issued2015-05-20en
dc.identifier.citationHybrid Pressure Retarded Osmosis−Membrane Distillation (PRO−MD) Process for Osmotic Power and Clean Water Generation 2015 Environ. Sci.: Water Res. Technol.en
dc.identifier.issn2053-1400en
dc.identifier.issn2053-1419en
dc.identifier.doi10.1039/C5EW00127Gen
dc.identifier.urihttp://hdl.handle.net/10754/555747en
dc.description.abstractA novel pressure retarded osmosis−membrane distillation (PRO−MD) hybrid process has been experimentally conceived for sustainable production of renewable osmotic power and clean water from various waters. The proposed PRO−MD system may possess unique advantages of high water recovery rate, huge osmotic power generation, well controlled membrane fouling, and minimal environmental impacts. Experimental results show that the PRO−MD hybrid process is promising that not only can harvest osmotic energy from freshwater but also from wastewater. When employing a 2 M NaCl MD concentrate as the draw solution, ultrahigh power densities of 31.0 W/m2 and 9.3 W/m2 have been demonstrated by the PRO subsystem using deionized water and real wastewater brine as the feeds, respectively. Simultaneously, high purity potable water with a flux of 32.5−63.1 L/(m2.h) can be produced by the MD subsystem at 40−60 °C without any detrimental effects of fouling. The energy consumption in the MD subsystem might be further reduced by applying a heat exchanger in the hybrid system and using low-grade heat or solar energy to heat up the feed solution. The newly developed PRO−MD hybrid process would provide insightful guidelines for the exploration of alternative green technologies for renewable osmotic energy and clean water production.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2015/EW/C5EW00127Gen
dc.rightsArchived with thanks to Environ. Sci.: Water Res. Technol.en
dc.subjectpressure retarded osmosisen
dc.subjectmembrane distillationen
dc.subjecthybrid processen
dc.subjectosmotic poweren
dc.subjectwastewater treatmenten
dc.subjectdesalinationen
dc.titleHybrid Pressure Retarded Osmosis−Membrane Distillation (PRO−MD) Process for Osmotic Power and Clean Water Generationen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalEnviron. Sci.: Water Res. Technol.en
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Chemical and Biomolecular Engineering National University of Singapore, Singapore 117585en
kaust.authorChung, Neal Tai-Shungen
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