Hybrid SBR–FO system for wastewater treatment and reuse: Operation, fouling and cleaning

Handle URI:
http://hdl.handle.net/10754/609562
Title:
Hybrid SBR–FO system for wastewater treatment and reuse: Operation, fouling and cleaning
Authors:
Valladares Linares, Rodrigo ( 0000-0003-3790-3249 ) ; Li, Zhenyu; Yangali-Quintanilla, Victor; Li, Qingyu; Vrouwenvelder, Johannes S. ( 0000-0003-2668-2057 ) ; Amy, Gary L.; Ghaffour, Noreddine ( 0000-0003-2095-4736 )
Abstract:
Forward osmosis (FO) is a novel membrane separation process that potentially can be used as an energy-saving alternative to conventional membrane processes. A hybrid sequential batch reactor (SBR)–FO process was explored. In this system, a plate and frame FO cell including two flat-sheet FO membranes was submerged in a bioreactor treating synthetic domestic wastewater. The dissolved organic carbon (DOC) removal efficiency of the system was 98.55%. Total nitrogen removal was 62.4%, with nitrate, nitrite and ammonium removals of 58.4%, 96.2% and 88.4%, respectively. Phosphate removal was almost 100%. The 15-hour cycle average water flux of a virgin membrane with air scouring was 2.95 L/m2·h− 1. Air scouring can help to remove loose foulants from the membrane active layer, thus helping to recover up to 89.5% of the original flux. Chemical cleaning of the fouled active layer of the FO membrane was not as effective as air scouring. Natural organic matter (NOM) characterization methods (liquid chromatography–organic carbon detection (LC–OCD) and 3-D fluorescence excitation emission matrix (FEEM)) show that the FO membrane has a very good performance in rejecting biopolymers, humics and building blocks, but a limited ability in rejecting low molecular weight neutrals. Transparent exopolymer particles (TEP) and other biopolymers might be associated with fouling of the membrane on the support layer. A 1% sodium hypochlorite (NaOCl) cleaning solution was proved to be effective for removing the foulants from the support layer and recovering the original flux.
KAUST Department:
Water Desalination & Reuse Research Cntr; Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Hybrid SBR–FO system for wastewater treatment and reuse: Operation, fouling and cleaning 2016 Desalination
Publisher:
Elsevier BV
Journal:
Desalination
Issue Date:
5-Apr-2016
DOI:
10.1016/j.desal.2016.03.015
Type:
Article
ISSN:
00119164
Sponsors:
The research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The authors would like to thank Hydration Technology Innovations for providing the FO membranes. The authors extend their gratitude to the Water Desalination and Reuse Center (WDRC) staff for the support.
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0011916416301308
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorValladares Linares, Rodrigoen
dc.contributor.authorLi, Zhenyuen
dc.contributor.authorYangali-Quintanilla, Victoren
dc.contributor.authorLi, Qingyuen
dc.contributor.authorVrouwenvelder, Johannes S.en
dc.contributor.authorAmy, Gary L.en
dc.contributor.authorGhaffour, Noreddineen
dc.date.accessioned2016-05-17T14:09:10Zen
dc.date.available2016-05-17T14:09:10Zen
dc.date.issued2016-04-05en
dc.identifier.citationHybrid SBR–FO system for wastewater treatment and reuse: Operation, fouling and cleaning 2016 Desalinationen
dc.identifier.issn00119164en
dc.identifier.doi10.1016/j.desal.2016.03.015en
dc.identifier.urihttp://hdl.handle.net/10754/609562en
dc.description.abstractForward osmosis (FO) is a novel membrane separation process that potentially can be used as an energy-saving alternative to conventional membrane processes. A hybrid sequential batch reactor (SBR)–FO process was explored. In this system, a plate and frame FO cell including two flat-sheet FO membranes was submerged in a bioreactor treating synthetic domestic wastewater. The dissolved organic carbon (DOC) removal efficiency of the system was 98.55%. Total nitrogen removal was 62.4%, with nitrate, nitrite and ammonium removals of 58.4%, 96.2% and 88.4%, respectively. Phosphate removal was almost 100%. The 15-hour cycle average water flux of a virgin membrane with air scouring was 2.95 L/m2·h− 1. Air scouring can help to remove loose foulants from the membrane active layer, thus helping to recover up to 89.5% of the original flux. Chemical cleaning of the fouled active layer of the FO membrane was not as effective as air scouring. Natural organic matter (NOM) characterization methods (liquid chromatography–organic carbon detection (LC–OCD) and 3-D fluorescence excitation emission matrix (FEEM)) show that the FO membrane has a very good performance in rejecting biopolymers, humics and building blocks, but a limited ability in rejecting low molecular weight neutrals. Transparent exopolymer particles (TEP) and other biopolymers might be associated with fouling of the membrane on the support layer. A 1% sodium hypochlorite (NaOCl) cleaning solution was proved to be effective for removing the foulants from the support layer and recovering the original flux.en
dc.description.sponsorshipThe research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The authors would like to thank Hydration Technology Innovations for providing the FO membranes. The authors extend their gratitude to the Water Desalination and Reuse Center (WDRC) staff for the support.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0011916416301308en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Desalination. 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 Desalination, 5 April 2016. DOI: 10.1016/j.desal.2016.03.015en
dc.subjectForward osmosis (FO)en
dc.subjectSequential batch reactor (SBR)en
dc.subjectFoulingen
dc.subjectNatural organic matter (NOM)en
dc.subjectWastewater treatmenten
dc.subjectMembrane cleaningen
dc.titleHybrid SBR–FO system for wastewater treatment and reuse: Operation, fouling and cleaningen
dc.typeArticleen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalDesalinationen
dc.eprint.versionPost-printen
dc.contributor.institutionBelfer Center for Science and International Affairs, John F. Kennedy School of Government, Harvard University, Cambridge, MA 02138, United Statesen
dc.contributor.institutionGrundfos Holding A/S, R&T, Bjerringbro, Denmarken
dc.contributor.institutionDelft University of Technology, Faculty of Applied Sciences, Department of Biotechnology, Delft, The Netherlandsen
dc.contributor.institutionWetsus, Centre of Excellence for Sustainable Water Technology, Leeuwarden, The Netherlandsen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorValladares Linares, Rodrigoen
kaust.authorLi, Zhenyuen
kaust.authorYangali-Quintanilla, Victoren
kaust.authorLi, Qingyuen
kaust.authorVrouwenvelder, Johannes S.en
kaust.authorAmy, Gary L.en
kaust.authorGhaffour, Noreddineen
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