Optimizing electrochemical methods for fish wastewater treatment in recirculating aquaculture systems

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dc.authorid0000-0003-4176-1976
dc.authorid0000-0001-9031-5142
dc.authorid0000-0002-2942-8225
dc.authorid0000-0003-2998-4544
dc.contributor.authorYakamercan, Elif
dc.contributor.authorTurco, Ronald F.
dc.contributor.authorNas, Bilgehan
dc.contributor.authorHussain, Aya S.
dc.contributor.authorAygun, Ahmet
dc.contributor.authorMeador, Leland
dc.contributor.authorSimsek, Halis
dc.date.accessioned2026-02-08T15:15:21Z
dc.date.available2026-02-08T15:15:21Z
dc.date.issued2024
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractAquaculture operations generate substantial wastewater containing organic matter, total dissolved solids, emerging contaminants, and uneaten food pellets, leading to significant environmental issues. In this study, electrooxidation (EO) treatment methods using a boron-doped diamond (BDD) electrode was employed to remove soluble chemical oxygen demand (sCOD), ammonia (NH3-N), nitrate (NO3--N), nitrite (NO2--N), total dissolved phosphorus (TDP), and total dissolved nitrogen (TDN) from aquaculture wastewater. Response surface methodology (RSM) was used to design experiments and optimize operating parameters. The experiments were tested as follows; pH of 6-8, current density of 30-50 mA/cm(2), and electrolysis time of 20-60 min. The results showed that >93 % removal of NH3-N, NO3--N, NO2--N, TDN, and 86.85 % of sCOD were achieved. TDP removal rate was lower than compared to other pollutants and was found to be 79.41 %. The model estimation values and experimental values agreed with an average coefficient of determination (R-2) of >0.98, and all models were found significant (p < 0.05). The optimized treatment conditions were a pH of 6.97, a current density of 42.36 mA/cm(2), and an electrolysis time of 60 min. Under these conditions, responses were achieved at 87.86, 96.52, 99.18, 94.71, 94.78, and 77.78 % for sCOD, NO2--N, NH3-N, NO3--N, TDN, and TDP. In addition, the kinetic model results confirmed that the operating parameters provided a significant reduction of parameters in the EO process. The results indicated that the EO process can efficiently treat the aquaculture effluent.
dc.description.sponsorshipUSDA National Institute of Food and Agriculture [2023-68012-39001]
dc.description.sponsorshipThis project was supported by the USDA National Institute of Food and Agriculture, under award number 2023-68012-39001. The opin-ions, findings, conclusions, and recommendations presented in this study are the sole responsibility of the author (s) and do not necessarily represent the perspectives of the funding agencies. The authors extend their sincere gratitude to the anonymous reviewers and the editor for their valuable and constructive input, which greatly contributed to the enhancement of this paper.
dc.identifier.doi10.1016/j.jwpe.2024.105891
dc.identifier.issn2214-7144
dc.identifier.scopus2-s2.0-85200538999
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jwpe.2024.105891
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5739
dc.identifier.volume66
dc.identifier.wosWOS:001292089200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Water Process Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectFish wastewater
dc.subjectElectrooxidation
dc.subjectBoron-doped diamond electrode
dc.subjectResponse surface methodology
dc.subjectWater pollution
dc.titleOptimizing electrochemical methods for fish wastewater treatment in recirculating aquaculture systems
dc.typeArticle

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