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Comparison of influence of free ammonia and dissolved oxygen on nitrite accumulation between suspended and attached cells

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dc.contributor.authorChung, Jinwook-
dc.contributor.authorShim, Hojae-
dc.contributor.authorLee, Yongwoo-
dc.contributor.authorBae, Wookeun-
dc.date.accessioned2021-06-23T23:41:20Z-
dc.date.available2021-06-23T23:41:20Z-
dc.date.created2021-02-01-
dc.date.issued2005-01-
dc.identifier.issn0959-3330-
dc.identifier.urihttps://scholarworks.bwise.kr/erica/handle/2021.sw.erica/46148-
dc.description.abstractThe shortcut biological nitrogen removal (SBNR) hybrid (suspended cells combined with attached cells) process is an innovative technology that nitrosofies ammonium to nitrite and then denitrifies nitrite to nitrogen gas. Theoretically, this results in a 25% savings of the oxygen needed for nitrification and a 40 of savings in carbon source needed for denitrification. In this study, the influences of free ammonia (FA) and dissolved oxygen (DO) concentrations on nitrite accumulation were investigated to find the optimal operational factors for stable nitrite accumulation over a long period. The maximum specific utilization rates for ammonium (q(a)) and nitrite (q(n)) were determined for suspended and attached cells taken from a bench-scale SBNR reactor and a pilot-scale livestock wastewater treatment plant reactor. For the ammonium and nitrite oxidations in both reactors, the attached cells were more resistant to the FA concentration, but were more significantly influenced by the DO concentration than the suspended cells. In addition, the effect of the DO concentration was more significant than that of the FA concentration for both tyres of cells from both reactors. In this SBNR hybrid system, a simultaneous manipulation of DO concentration (< 1.5 mg l(-1)) and FA concentration (10-20 mg l(-1)) was required for maintaining high levels of nitrite accumulation.-
dc.language영어-
dc.language.isoen-
dc.publisherSelper Ltd.-
dc.titleComparison of influence of free ammonia and dissolved oxygen on nitrite accumulation between suspended and attached cells-
dc.typeArticle-
dc.contributor.affiliatedAuthorLee, Yongwoo-
dc.identifier.doi10.1080/09593332608618587-
dc.identifier.scopusid2-s2.0-14944381512-
dc.identifier.wosid000227708300003-
dc.identifier.bibliographicCitationEnvironmental Technology (United Kingdom), v.26, no.1, pp.21 - 33-
dc.relation.isPartOfEnvironmental Technology (United Kingdom)-
dc.citation.titleEnvironmental Technology (United Kingdom)-
dc.citation.volume26-
dc.citation.number1-
dc.citation.startPage21-
dc.citation.endPage33-
dc.type.rimsART-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaEnvironmental Sciences & Ecology-
dc.relation.journalWebOfScienceCategoryEnvironmental Sciences-
dc.subject.keywordPlusHIGH-STRENGTH AMMONIUM-
dc.subject.keywordPlusWASTE-WATER-
dc.subject.keywordPlusNITROGEN REMOVAL-
dc.subject.keywordPlusNITROSOMONAS-EUROPAEA-
dc.subject.keywordPlusNITRIFYING BIOFILMS-
dc.subject.keywordPlusMICROBIAL NITRIFICATION-
dc.subject.keywordPlusKINETICS-
dc.subject.keywordPlusNITROBACTER-
dc.subject.keywordPlusINHIBITION-
dc.subject.keywordPlusMODEL-
dc.subject.keywordAuthordissolved oxygen-
dc.subject.keywordAuthorfree ammonia-
dc.subject.keywordAuthormaximum specific substrate utilization rate-
dc.subject.keywordAuthorshortcut biological nitrogen removal-
dc.identifier.urlhttps://www.tandfonline.com/doi/abs/10.1080/09593332608618587-
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COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY (DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING)
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