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dc.contributor.author박주양-
dc.date.accessioned2017-05-23T00:13:50Z-
dc.date.available2017-05-23T00:13:50Z-
dc.date.issued2015-09-
dc.identifier.citationSEPARATION AND PURIFICATION TECHNOLOGY, v. 152, Page. 140-147en_US
dc.identifier.issn1383-5866-
dc.identifier.issn1873-3794-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S1383586615301441-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/27400-
dc.description.abstractThis study investigated the kinetics of nitrate reduction with the zero-valent iron bipolar (ZVI-BP) electrode. The kinetics of the nitrate reduction was considered with respect to the initial concentration of nitrate and the flow rate. Increasing the initial concentration of nitrate enhanced the nitrate reduction rate and there was the proper flow rate (20 mL/min) to achieve the highest nitrate reduction rate (6.2 h(-1)). But increasing the initial nitrate concentration rather decreased conversion ratio of nitrate to ammonia from 54.5% to 45.9% because of the ammonia oxidation to nitrogen gas as electro-catalytic oxidation. The highest reaction rate was obtained when the experimental hydraulic retention time (HRT) was analogous to the theoretical HRT. The current efficiency was over 100% because of low current density and the redox reaction with Fe2+/Fe3+ redox couple. The corrosion of the ZVI-BP electrodes was characterized by using the X-ray Diffraction (XRD) and the field emission scanning electron microscope (FE-SEM). Magnetite was the major corrosion product and it had potential to enhance the nitrate reduction. The modeling of nitrate reduction had similar trend with experimental data and the verification of the modeling parameter will help the up-scale design of the system. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipThis research was supported by a grant (code 13IFIP-B065893-01) from Industrial Facilities & Infrastructure Research Program funded by Ministry of Land, Infrastructure and Transport of Korean government and this work was conducted under the framework of the Research and Development Program of the Korea Institute of Energy Research (KIER: B5-2481). We also thank the Research Institute of Advanced Materials (RIAM) at Seoul National University for XRD and SEM measurements.en_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.subjectBipolar electrodeen_US
dc.subjectZero-valent iron (ZVI)en_US
dc.subjectElectrochemical nitrate reductionen_US
dc.subjectCurrent efficiencyen_US
dc.subjectIron corrosionen_US
dc.titleKinetics of nitrate reduction with the packed bed iron bipolar electrodeen_US
dc.typeArticleen_US
dc.relation.volume152-
dc.identifier.doi10.1016/j.seppur.2015.08.010-
dc.relation.page140-147-
dc.relation.journalSEPARATION AND PURIFICATION TECHNOLOGY-
dc.contributor.googleauthorKim, Han-Ki-
dc.contributor.googleauthorJeong, Joo-Young-
dc.contributor.googleauthorCho, Han-Na-
dc.contributor.googleauthorPark, Joo-Yang-
dc.relation.code2015009297-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING-
dc.identifier.pidjooypark-
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COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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