Wastewater treatment, energy recovery and desalination using a forward osmosis membrane in an air-cathode microbial osmotic fuel cell

Handle URI:
http://hdl.handle.net/10754/562623
Title:
Wastewater treatment, energy recovery and desalination using a forward osmosis membrane in an air-cathode microbial osmotic fuel cell
Authors:
Werner, Craig M.; Logan, Bruce E.; Saikaly, Pascal ( 0000-0001-7678-3986 ) ; Amy, Gary L.
Abstract:
A microbial osmotic fuel cell (MOFC) has a forward osmosis (FO) membrane situated between the electrodes that enable desalinated water recovery along with power generation. Previous designs have required aerating the cathode chamber water, offsetting the benefits of power generation by power consumption for aeration. An air-cathode MOFC design was developed here to improve energy recovery, and the performance of this new design was compared to conventional microbial fuel cells containing a cation (CEM) or anion exchange membrane (AEM). Internal resistance of the MOFC was reduced with the FO membrane compared to the ion exchange membranes, resulting in a higher maximum power production (43W/m3) than that obtained with an AEM (40W/m3) or CEM (23W/m3). Acetate (carbon source) removal reached 90% in the MOFC; however, a small amount of acetate crossed the membrane to the catholyte. The initial water flux declined by 28% from cycle 1 to cycle 3 of operation but stabilized at 4.1L/m2/h over the final three batch cycles. This decline in water flux was due to membrane fouling. Overall desalination of the draw (synthetic seawater) solution was 35%. These results substantially improve the prospects for simultaneous wastewater treatment and seawater desalination in the same reactor. © 2012 Elsevier B.V.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Environmental Biotechnology Research Group
Publisher:
Elsevier
Journal:
Journal of Membrane Science
Issue Date:
Feb-2013
DOI:
10.1016/j.memsci.2012.10.031
Type:
Article
ISSN:
03767388
Sponsors:
This work was sponsored by a PhD fellowship, a Global Research Partnership-Collaborative Fellow award, and award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST). Special thanks to Victor Yangali-Quintanilla, Zhen-Yu Li and Rodrigo Valladares-Linares for their helpful comments and suggestions and Cyril Aubry for SEM assistance.
Appears in Collections:
Articles; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWerner, Craig M.en
dc.contributor.authorLogan, Bruce E.en
dc.contributor.authorSaikaly, Pascalen
dc.contributor.authorAmy, Gary L.en
dc.date.accessioned2015-08-03T10:58:47Zen
dc.date.available2015-08-03T10:58:47Zen
dc.date.issued2013-02en
dc.identifier.issn03767388en
dc.identifier.doi10.1016/j.memsci.2012.10.031en
dc.identifier.urihttp://hdl.handle.net/10754/562623en
dc.description.abstractA microbial osmotic fuel cell (MOFC) has a forward osmosis (FO) membrane situated between the electrodes that enable desalinated water recovery along with power generation. Previous designs have required aerating the cathode chamber water, offsetting the benefits of power generation by power consumption for aeration. An air-cathode MOFC design was developed here to improve energy recovery, and the performance of this new design was compared to conventional microbial fuel cells containing a cation (CEM) or anion exchange membrane (AEM). Internal resistance of the MOFC was reduced with the FO membrane compared to the ion exchange membranes, resulting in a higher maximum power production (43W/m3) than that obtained with an AEM (40W/m3) or CEM (23W/m3). Acetate (carbon source) removal reached 90% in the MOFC; however, a small amount of acetate crossed the membrane to the catholyte. The initial water flux declined by 28% from cycle 1 to cycle 3 of operation but stabilized at 4.1L/m2/h over the final three batch cycles. This decline in water flux was due to membrane fouling. Overall desalination of the draw (synthetic seawater) solution was 35%. These results substantially improve the prospects for simultaneous wastewater treatment and seawater desalination in the same reactor. © 2012 Elsevier B.V.en
dc.description.sponsorshipThis work was sponsored by a PhD fellowship, a Global Research Partnership-Collaborative Fellow award, and award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST). Special thanks to Victor Yangali-Quintanilla, Zhen-Yu Li and Rodrigo Valladares-Linares for their helpful comments and suggestions and Cyril Aubry for SEM assistance.en
dc.publisherElsevieren
dc.subjectDesalinationen
dc.subjectForward osmosisen
dc.subjectFoulingen
dc.subjectMicrobial osmotic fuel cellen
dc.titleWastewater treatment, energy recovery and desalination using a forward osmosis membrane in an air-cathode microbial osmotic fuel cellen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentEnvironmental Biotechnology Research Groupen
dc.identifier.journalJournal of Membrane Scienceen
dc.contributor.institutionDepartment of Civil and Environmental Engineering, Pennsylvania State University, University Park, PA 16802, United Statesen
kaust.authorWerner, Craig M.en
kaust.authorSaikaly, Pascalen
kaust.authorAmy, Gary L.en
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