Optimization of Biological Nitrogen Removal over Nitrite in the Presence of Lipid Matter by Regulation of Operational Modes

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dc.contributor.authorErdirencelebi, Dilek
dc.contributor.authorKoyuncu, Serdar
dc.date.accessioned2020-03-26T19:54:56Z
dc.date.available2020-03-26T19:54:56Z
dc.date.issued2018
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractOptimization of total nitrogen (TN) removal via the nitrite path was studied at a sequential batch reactor (SBR) from anaerobic reject water (ARW) with a content of slowly degrading organic matter of lipid structure. The study was conducted as a pilot-scale side-line treatment in a large-scale municipal and industrial wastewater treatment plant (WWTP). Operational mode was modified based on feeding pattern, sequence order, phase duration, and number to maximize TN removal and minimize lipid-related interferences. Ammonium loading rate (ALR) proceeded at 0.2-0.7kgN/m3day and the optimum range was determined for maximum TN removal. An insufficient HCO3-/N ratio was further lowered by volatile fatty acids (VFA) production via beta-oxidation of long-chain fatty acids (LCFA) during nitritation. The organic content of ARW and VFA showed a low degradability by denitrifying bacteria and limited TN removal. Modifications in the operational mode increased ammonium and nitrite removal and reduced toxic-free VFA and nitrous acid (FNA) with increased anoxic and aerobic denitritation. Ammonium nitrogen at 180-478mgN/L was reduced to approximately 20mgN/L in all effluents and TN removal was achieved at 84-86%. Temperature sensitivity was higher for denitritation than nitritation. (C) 2017 American Society of Civil Engineers.en_US
dc.description.sponsorshipTurkish Scientific Research Council (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [113Y180]; Konya Administration of Water and Sewerage (KOSKI), TRen_US
dc.description.sponsorshipThis study was conducted within the Research Project (113Y180) supported by Turkish Scientific Research Council (TUBITAK) and Konya Administration of Water and Sewerage (KOSKI), TR.en_US
dc.identifier.doi10.1061/(ASCE)EE.1943-7870.0001317en_US
dc.identifier.issn0733-9372en_US
dc.identifier.issn1943-7870en_US
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://dx.doi.org/10.1061/(ASCE)EE.1943-7870.0001317
dc.identifier.urihttps://hdl.handle.net/20.500.12395/36824
dc.identifier.volume144en_US
dc.identifier.wosWOS:000418186700016en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherASCE-AMER SOC CIVIL ENGINEERSen_US
dc.relation.ispartofJOURNAL OF ENVIRONMENTAL ENGINEERINGen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectWastewateren_US
dc.subjectNitrogen removalen_US
dc.subjectLipiden_US
dc.subjectOxidationen_US
dc.subjectOperationen_US
dc.subjectSequential batch reactoren_US
dc.titleOptimization of Biological Nitrogen Removal over Nitrite in the Presence of Lipid Matter by Regulation of Operational Modesen_US
dc.typeArticleen_US

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