Comparative evaluation of the nutrient and cod removal performances of various sequentially operated biofilm reactors

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dc.contributor.authorDolgen, D.
dc.contributor.authorAlpaslan, M. N.
dc.contributor.authorAzbar, N.
dc.contributor.authorUnlu, B.
dc.date.accessioned2019-10-27T19:33:05Z
dc.date.available2019-10-27T19:33:05Z
dc.date.issued2007
dc.departmentEge Üniversitesien_US
dc.description.abstractIn this paper, the performances of Fixed Bed (FXB), Fluidized Bed (FLB), and Hybrid (HYB, i.e. fluidized bed followed by fixed) operational conditions of biofilm reactors were investigated. The COD (chemical oxygen demand), TN (total nitrogen) and TP (total phosphorus) were taken as performance-indicator parameters. For that purpose, a pilot experimental setup allowing FXB, FLB and HYB operations in a single reactor was run under varying COD (between 500 to 2000 mg COD l(-1)), TN (between 25 to 100 mg l(-1)) and TP (between 5 to 20 mg l(-1)) influent concentrations. The system was operated as sequentially batch (SBR) and a filtering process was added at the end of each operational phase in order to achieve liquid-solid separation. Results indicated that FXB and FLB are two upper and lower cases, and HYB plays a role between them and respond as a best alternative. For example, for the lower influent concentrations (around 500 mg l(-1)), 84% of COD was removed to final averages of 78 +/- 15.4 mg l(-1); simultaneously, TN reduced to 18.55 +/- 3.48 mg l(-1) (corresponding to 31 TN removal) and 60%. of TP was treated to final averages of 1.9 +/- 20.2 mg l(-1) in the HYB operation. When the influent concentrations were increased to 1000 mg l(-1),COD removal efficiency of the HYB reactor was reduced to 73% (COD reduced from 1005.3 +/- 6.13 mg l(-1) to 270.57 +/- 13.18 mg l(-1)) and, due to incomplete organic matter degradation and oxygen deficiency, 40% of TN was removed to final averages of 34.03 +/- 5.04 mg l(-1) and 56% of TP treated to final averages of 3.98 +/- 0.28 mg l(-1). Performance of the HYB reactor was decreased when influent concentration increased to 2000 mg COD 1(-1).en_US
dc.identifier.doi10.1080/09593332808618853en_US
dc.identifier.endpage934en_US
dc.identifier.issn0959-3330
dc.identifier.issue8en_US
dc.identifier.pmid17879851en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage921en_US
dc.identifier.urihttps://doi.org/10.1080/09593332808618853
dc.identifier.urihttps://hdl.handle.net/11454/39413
dc.identifier.volume28en_US
dc.identifier.wosWOS:000248737200010en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSelper Ltd, Publications Diven_US
dc.relation.ispartofEnvironmental Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectbiofilmen_US
dc.subjectfluidized beden_US
dc.subjectfixed-beden_US
dc.subjecthybriden_US
dc.subjectsequential batchen_US
dc.titleComparative evaluation of the nutrient and cod removal performances of various sequentially operated biofilm reactorsen_US
dc.typeArticleen_US

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