Evaluating the performance of an electro-membrane bioreactor in treatment of young leachate

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dc.contributor.authorAkkaya, Gulizar Kurtoglu
dc.contributor.authorBilgili, Mehmet Sinan
dc.date.accessioned2024-02-23T14:12:46Z
dc.date.available2024-02-23T14:12:46Z
dc.date.issued2020
dc.departmentNEÜen_US
dc.description.abstractLeachate generated from landfill, typically contains high amounts of different pollutions. Its composition may vary according to the origin and age of landfill. In this study, the performance of a laboratory-scale submerged electro-membrane bioreactor (SMEBR), an integrated process consisting of an electro-coagulation unit and a conventional submerged membrane bioreactor (SMBR) for treating young leachate was evaluated. SMEBR and SMBR as control reactor were operated simultaneously to compare. In SMEBR, perforated aluminum (Al) electrodes were used. SMEBR was operated under electrokinetic conditions at a current density of 24 mA/cm(2) for 50 days: at 180 s/day for 25 days (Stage I) and 360 s/day for 25 days (Stage II). Chemical oxygen demand (COD), ammonia nitrogen (NH3-N), color and metal removal performances were evaluated for both reactors. Also, the membrane fouling was examined by monitoring the change in transmembrane pressure over time. The concentration of dissolved oxygen (DO) was determined using the oxygen uptake rate in a period covering SMEBR operating conditions. Based on the results obtained, positive effects of electrical field SMEBR were clearly observed at Stage II. At the Stage II, the removal efficiency of COD was 6-15% higher in SMEBR compared to SMBR. The average NH3-N removal efficiencies in SMEBR and SMBR were 86 and 78%, respectively. Following the introduction of electrical current to SMEBR, DO concentrations were measured about 0.8 mg/L lower than SMBR; however, nitrification was not affected adversely. Additionally, chemical properties of SMEBR and SMBR membranes surfaces were characterized by using the Fourier-transform infrared spectroscopy.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [115Y038]en_US
dc.description.sponsorshipThe financial support from Scientific and Technological Research Council of Turkey (TUBITAK), 1002 Short Term R&D Funding Program Project no: 115Y038 is acknowledged. The authors are grateful ISTAC Odayeri Solid Waste Landfill Plant for their collaboration and Assit. Prof. Dr. Oguz Kaan Ozdemir in Yildiz Technical Universty for helping in FTIR analysis. The authors also would like to thank their colleague, Dr. Elif Sekman for sharing experience and Dr. Selin Top for support in laboratory works of this study.en_US
dc.identifier.doi10.1016/j.jece.2020.104017
dc.identifier.issn2213-3437
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85091315466en_US
dc.identifier.urihttps://doi.org/10.1016/j.jece.2020.104017
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12170
dc.identifier.volume8en_US
dc.identifier.wosWOS:000562065400013en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofJournal Of Environmental Chemical Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLeachate Treatmenten_US
dc.subjectElectro-Membrane Bioreactoren_US
dc.subjectElectric Fielden_US
dc.subjectElectrocoagulationen_US
dc.titleEvaluating the performance of an electro-membrane bioreactor in treatment of young leachateen_US
dc.typeArticleen_US

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