TY - JOUR
T1 - Microbial desalination cell with sulfonated sodium (poly(ether ether ketone) as cation exchange membranes for enhancing power generation and salt reduction
AU - Moruno, Francisco Lopez
AU - Rubio, Juan E.
AU - Atanassov, Plamen
AU - Cerrato, José M.
AU - Arges, Christopher G.
AU - Santoro, Carlo
N1 - Funding Information:
F.L.M. and J.M.C thank the National Science Foundation Awards CAREER 1652619 and EPSCoR #IIA-1301346 for funding support.
Funding Information:
F.L.M., C.S. and P.A. would like to thank the Bill & Melinda Gates Foundation grant: “Efficient Microbial Bio-electrochemical Systems” ( OPP1139954 ). F.L.M. and J.M.C thank the National Science Foundation Awards CAREER 1652619 and EPSCoR # IIA-1301346 for funding support. C.G.A. thanks the National Science Foundation Award # MHz Bruker NMR spectrometer, and Ms. Le Zhang for preparing the process flow diagram that depicts fabrication for patterned SPEEK CEMs. 1703307 for funding support. He also thanks LSU's Center for Advanced Microstructures (CAMD) for access to the optical microscope, the Chemistry Department at LSU for use of the 400
Publisher Copyright:
© 2018
PY - 2018/6
Y1 - 2018/6
N2 - Microbial desalination cell (MDC) is a bioelectrochemical system capable of oxidizing organics, generating electricity, while reducing the salinity content of brine streams. As it is designed, anion and cation exchange membranes play an important role on the selective removal of ions from the desalination chamber. In this work, sulfonated sodium (Na+) poly(ether ether ketone) (SPEEK) cation exchange membranes (CEM) were tested in combination with quaternary ammonium chloride poly(2,6-dimethyl 1,4-phenylene oxide) (QAPPO) anion exchange membrane (AEM). Non-patterned and patterned (varying topographical features) CEMs were investigated and assessed in this work. The results were contrasted against a commercially available CEM. This work used real seawater from the Pacific Ocean in the desalination chamber. The results displayed a high desalination rate and power generation for all the membranes, with a maximum of 78.6 ± 2.0% in salinity reduction and 235 ± 7 mW m−2 in power generation for the MDCs with the SPEEK CEM. Desalination rate and power generation achieved are higher with synthesized SPEEK membranes when compared with an available commercial CEM. An optimized combination of these types of membranes substantially improves the performances of MDC, making the system more suitable for real applications.
AB - Microbial desalination cell (MDC) is a bioelectrochemical system capable of oxidizing organics, generating electricity, while reducing the salinity content of brine streams. As it is designed, anion and cation exchange membranes play an important role on the selective removal of ions from the desalination chamber. In this work, sulfonated sodium (Na+) poly(ether ether ketone) (SPEEK) cation exchange membranes (CEM) were tested in combination with quaternary ammonium chloride poly(2,6-dimethyl 1,4-phenylene oxide) (QAPPO) anion exchange membrane (AEM). Non-patterned and patterned (varying topographical features) CEMs were investigated and assessed in this work. The results were contrasted against a commercially available CEM. This work used real seawater from the Pacific Ocean in the desalination chamber. The results displayed a high desalination rate and power generation for all the membranes, with a maximum of 78.6 ± 2.0% in salinity reduction and 235 ± 7 mW m−2 in power generation for the MDCs with the SPEEK CEM. Desalination rate and power generation achieved are higher with synthesized SPEEK membranes when compared with an available commercial CEM. An optimized combination of these types of membranes substantially improves the performances of MDC, making the system more suitable for real applications.
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U2 - 10.1016/j.bioelechem.2018.02.004
DO - 10.1016/j.bioelechem.2018.02.004
M3 - Article
C2 - 29459302
AN - SCOPUS:85042175873
VL - 121
SP - 176
EP - 184
JO - Bioelectrochemistry and Bioenergetics
JF - Bioelectrochemistry and Bioenergetics
SN - 1567-5394
ER -