Electrocoagulation of disperse dyebath wastewater: Optimization of process variables and sludge production

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dc.authorid0000-0002-6321-0350en_US
dc.authorscopusid15724392900en_US
dc.contributor.authorAygün, Ahmet
dc.contributor.authorNas B.
dc.contributor.authorSevimli M.F.
dc.date.accessioned2022-04-05T08:18:46Z
dc.date.available2022-04-05T08:18:46Z
dc.date.issued2021en_US
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.description.abstractThis study was conducted to investigate the effect of initial pH, current density, and electrolysis time on process performance in terms of decolorization and chemical oxygen demand (COD) removal from disperse dyebath wastewater (DDW) by mono-polar parallel laboratory scale electrocoagulation (EC) process. COD reduction of 51.3% and decolorization of 92.8% were obtained with operating cost of 0.19 €/m treated wastewater for Al-Al electrode pair, while 90.5% of decol-orization and 49.2% of COD reduction were obtained with operating cost of 0.203 €/m treated wastewater for an Fe-Fe electrode pair. The amount of sludge production were highly related to type of the electrode materials. At the3 optimum conditions, the amount of sludge produced were 0.18 kg/m and 0.28 kg/m for Al-Al and Fe-Fe electrode pairs, respec-tively. High decolorization can be explained by the hydrophobic nature of the disperse dye, while limited COD removal3 3 was observed due to the high dissolved organic matter of the DDW based on auxiliary chemicals. Energy, electrode, and chemical consumptions and sludge handling were considered as major cost items to find a cost-effective and sustainable solution for EC. The contribution of each cost items on operating cost were determined as 10.0%, 51.1%, 30.5% and 8.4% for Al-Al, and they were also determined as 9.0%, 38.0%, 40.5% and 12.5% for Fe-Fe, respectively. COD reduction and decolorization were fitted to first-order kinetic rule.en_US
dc.identifier.doi10.33961/jecst.2020.00787en_US
dc.identifier.endpage91en_US
dc.identifier.issn20938551
dc.identifier.issue1en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage82en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1877
dc.identifier.volume12en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherKorean Electrochemical Societyen_US
dc.relation.ispartofJournal of Electrochemical Science and Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAuxiliary Chemicalsen_US
dc.subjectDecolorizationen_US
dc.subjectDisperse Dyeen_US
dc.subjectElectrocoagulationen_US
dc.subjectOptimizationen_US
dc.titleElectrocoagulation of disperse dyebath wastewater: Optimization of process variables and sludge productionen_US
dc.typeArticleen_US

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