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dc.contributor.authorSon, Moon
dc.contributor.authorKolvek, Eric
dc.contributor.authorKim, Taeyoung
dc.contributor.authorYang, Wulin
dc.contributor.authorVrouwenvelder, Johannes S.
dc.contributor.authorGorski, Christopher A.
dc.contributor.authorLogan, Bruce
dc.date.accessioned2020-09-06T10:32:52Z
dc.date.available2020-09-06T10:32:52Z
dc.date.issued2020
dc.date.submitted2020-01-05
dc.identifier.citationSon, M., Kolvek, E., Kim, T., Yang, W., Vrouwenvelder, J. S., Gorski, C. A., & Logan, B. E. (2020). Stepwise ammonium enrichment using selective battery electrodes. Environmental Science: Water Research & Technology, 6(6), 1649–1657. doi:10.1039/d0ew00010h
dc.identifier.issn2053-1419
dc.identifier.issn2053-1400
dc.identifier.doi10.1039/d0ew00010h
dc.identifier.urihttp://hdl.handle.net/10754/664941
dc.description.abstractAmmonium is typically removed from treated wastewaters before discharge by converting it to nitrogen gas, but its capture and reuse could provide a new strategy for energy recovery at treatment plants. A three-stage electrochemical approach was developed here to selectively remove and concentrate ammonium derived from wastewater. Each stage contained a battery electrode deionization (BDI) cell containing two copper hexacyanoferrate (CuHCF) electrodes separated into two channels using an anion exchange membrane. Through application of a low applied voltage (0.3 V) in each of the three stages, ammonium was concentrated greater than 6 times, from 5 to 32 mM (90 to 576 mg L-1), with minimal changes in the concentration of other cations (Na+, K+, Mg2+, and Ca2+) present in the water due to the high ammonium ion selectivity of CuHCF electrodes under these operating conditions. The cumulative energy use for the three-stage process was only 2.0 kW h per kg-N, compared to the 14 kW h per kg-N that would be needed to manufacture this amount of ammonium from nitrogen gas. Nitrogen recovery methods such as these will be needed to further transform used water plants into more effective resource recovery treatment plants.
dc.description.sponsorshipThis research was supported by the King Abdullah University of Science and Technology (KAUST) (OSR-2017-CPF-2907-02) and Penn State University.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://xlink.rsc.org/?DOI=D0EW00010H
dc.rightsArchived with thanks to Environmental Science: Water Research and Technology
dc.titleStepwise ammonium enrichment using selective battery electrodes
dc.typeArticle
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalEnvironmental Science: Water Research and Technology
dc.rights.embargodate2021-04-16
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Civil and Environmental Engineering, The Pennsylvania State University University Park PA 16802 USA
dc.contributor.institutionDepartment of Chemical Engineering, The Pennsylvania State University University Park PA 16802
dc.contributor.institutionDepartment of Chemical and Biomolecular Engineering, and Institute for a Sustainable Environment, Clarkson University Potsdam NY 13699
dc.identifier.volume6
dc.identifier.issue6
dc.identifier.pages1649-1657
kaust.personVrouwenvelder, Johannes S.
kaust.grant.numberOSR-2017-CPF-2907-02
dc.date.accepted2020-04-16
dc.identifier.eid2-s2.0-85089575605
kaust.acknowledged.supportUnitOSR


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