Optimization of a full-scale site to achieve total nitrogen removal through implementation of a denitrification-submerged anoxic filter

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dc.contributor.authorManzano, I
dc.contributor.authorDias, Joana Silva
dc.contributor.authorCannon, J
dc.contributor.authorSoares, Ana
dc.date.accessioned2018-01-17T10:09:49Z
dc.date.available2018-01-17T10:09:49Z
dc.date.issued2017-11-27
dc.description.abstractA full-scale wastewater treatment plant with a 5500 population equivalent was retrofitted with a pre-denitrification-submerged anoxic filter (SAnoF) in order to achieve new total nitrogen (TN) consent of 35 mg/L. A 36 m3 SAnoF was installed downstream the primary settling tanks. The optimal operation of the anoxic SAnoF was investigated by varying the recirculation ratio, the carbon-to-nitrate ratio, and the hydraulic retention time. After stable operation was achieved, nitrate was removed by 80% at a loading of 0.5 kg NO3/m3 day and a retention time of 60 min. The SAnoF presented a number of advantages, including the use of internal carbon for denitrification, decrease of carbon load to the trickling filter by 30%, and production of alkalinity required for nitrification in the trickling filter (11 mg CaCO3/mg NH4 removed). Overall, the SAnoF was satisfactory and the effluent TN concentration reached 20–25 mg TN/Len_UK
dc.identifier.citationManzano I, Dias JS, Cannon J, Soares A, Optimization of a full-scale site to achieve total nitrogen removal through implementation of a denitrification-submerged anoxic filter, Water and Environment Journal, Volume 32, Issue 2, May 2018, pp. 242-249en_UK
dc.identifier.issn1747-6585
dc.identifier.urihttps://doi.org/10.1111/wej.12320
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12898
dc.language.isoenen_UK
dc.publisherWileyen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rightsCreative Commons Attribution-Non-Commercial 4.0 (CC BY-NC 4.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectAnoxicen_UK
dc.subjectCarbon to nitrogen ratioen_UK
dc.subjectDenitrificationen_UK
dc.subjectHydraulic retention timeen_UK
dc.subjectNitrate loaden_UK
dc.subjectRecirculation rateen_UK
dc.titleOptimization of a full-scale site to achieve total nitrogen removal through implementation of a denitrification-submerged anoxic filteren_UK
dc.typeArticleen_UK

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