Nitrogen removal in an aerobic gravel filtration-sedimentation pond-constructed wetland-overland flow system treating polluted stream waters: Effects of operation parameters

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dc.authoridTuncsiper, Bilal/0000-0002-6268-7237
dc.contributor.authorTuncsiper, Bilal
dc.date.accessioned2024-11-07T13:25:05Z
dc.date.available2024-11-07T13:25:05Z
dc.date.issued2020
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractNitrogen pollution in streams can be controlled by serially constructing natural wastewater treatment (NWT) systems inside streams. Therefore, a pilot-scale hybrid NWT system consisting of gravel filtration (GF), sedimentation pond (SP), gravel filtration-free water surface constructed wetland (GF-FWSCW), and gravel filtrationoverland flow (GF-OF) was installed in order to prevent contamination in a stream (Nigde stream) that feeds and pollutes surface water source (Akkaya lake). The pilot-scale system was installed on a new 60 m-long channel which was located off the stream. Changes in ammonium (NH4+-N), organic nitrogen (N-org.), total nitrogen (TN), and biochemical oxygen demand (BOD) concentrations was routinely monitored in influent and effluent of all stages of the hybrid NWT system and the bottom sediment of the SP over a one-year operation period. According to the study results, while NH4+- N plus N-org. was reduced by an average of 75% (from 49,1 mg L-1 to 7,1mg L-1), TN was reduced by an average of 85% (from 50,2mg L-1 to 12,4 mg L-1). Colder seasons and higher hydraulic loading rates (HLRs) negatively affected nitrogen removal efficiency of the pilot-system. The use of vegetation and filtermediumhad a positive effect on the average removal efficiencies. The results showed that nitrogen pollution in polluted streams could be greatly reduced by establishing a NWT system in series within them. (C) 2020 Published by Elsevier B.V.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [113Y589]; TUBITAK
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK), through the Project n. 113Y589. The author wishes to thank the TUBITAK for financial support.
dc.identifier.doi10.1016/j.scitotenv.2020.140577
dc.identifier.issn0048-9697
dc.identifier.issn1879-1026
dc.identifier.pmid32763591
dc.identifier.scopus2-s2.0-85088890873
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.scitotenv.2020.140577
dc.identifier.urihttps://hdl.handle.net/11480/14494
dc.identifier.volume746
dc.identifier.wosWOS:000579371300007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofScience of the Total Environment
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectBiological wastewater treatment
dc.subjectConstructed wetland
dc.subjectEcological-based wastewater treatment
dc.subjectOverland flow
dc.subjectRemediation
dc.titleNitrogen removal in an aerobic gravel filtration-sedimentation pond-constructed wetland-overland flow system treating polluted stream waters: Effects of operation parameters
dc.typeArticle

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