Anodic oxidation of effluents from stages of MBR-UF Municipal landfill leachate treatment plant

dc.contributor.authorUkundimana, Zubeda
dc.contributor.authorKobya, Mehmet
dc.contributor.authorOmwene, Philip Isaac
dc.contributor.authorGengec, Erhan
dc.contributor.authorCan, Orhan Taner
dc.date.accessioned2020-07-10T14:00:17Z
dc.date.available2020-07-10T14:00:17Z
dc.date.issued2020-05-18
dc.description.abstractThis study used boron-doped diamond electrode on niobium substrate (Nb/boron-doped diamond [BDD]) for the anodic oxidation of landfill leachate in a batch reactor. Raw leachate and biologically pretreated effluent samples were collected from each step of the existing unit operation of a municipal landfill leachate treatment plant (Kocaeli-Turkey). The influence of parameters, such as treatment time, initial pH (3.50–10.0), and applied current density (j = 76–1,060 A/m2), on the removal of total organic carbon (TOC), chemical oxygen demand (COD), and ammonium nitrogen (NH4+-N) was assessed. The highest pollutant removal efficiencies were obtained at leachate inherent pH (6.50–8.75), moreover, pollutant removal rates increased with the increase in current density. The NH4+-N removal mainly occurred by indirect oxidation and well fitted second-order kinetics, whereas COD removal followed pseudo first-order kinetics. The optimum current density ensuring simultaneous removal of COD and NH4+-N was 756 and 455 A/m2 for raw leachate and for pretreated effluents, respectively. Under these optimums, nearly complete NH4+-N removal was attained, while ≥97% removal of TOC and COD was recorded. Herein, we present anodic oxidation as a suitable alternative for treatment of both stabilized raw leachate and effluents from stages of the membrane bioreactor/ultrafiltration treatment plant for the abatement of COD, TOC, and NH4+-N.en_US
dc.identifier.citationUkundimana, Z., Kobya, M., Omwene, P. I., Gengec, E., Can, O. T. (2020). Anodic oxidation of effluents from stages of MBR-UF Municipal landfill leachate treatment plant. Environmental Engineering Science. http://doi.org/10.1089/ees.2020.0003en_US
dc.identifier.urihttps://dir.muni.ac.ug/handle/20.500.12260/341
dc.publisherMary Ann Lieberten_US
dc.subjectAnodic oxidationen_US
dc.subjectCOD removalen_US
dc.subjectLandfill leachateen_US
dc.subjectMBR effluentsen_US
dc.subjectNH4+-N removalen_US
dc.titleAnodic oxidation of effluents from stages of MBR-UF Municipal landfill leachate treatment planten_US
dc.typeArticleen_US

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