Optimization of sequential chemical coagulation - electro-oxidation process for the treatment of an industrial textile wastewater

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dc.citation.journalTitleJournal of Water Process Engineeringeng
dc.contributor.authorGIL PAVAS EDISON
dc.contributor.authorDobrosz-Gómez, I.
dc.contributor.authorAngel Gomez-Garcia, Miguel
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería de Procesosspa
dc.contributor.researchgroupDesarrollo y Diseño de Procesosspa
dc.date.accessioned2021-04-12T19:06:21Z
dc.date.available2021-04-12T19:06:21Z
dc.date.issued2018-04-01
dc.description.abstractIn this study, the sequential Chemical Coagulation-Electro-Oxidation (CC-EO) process was proposed as an alternative for the treatment of an industrial textile wastewater. Complete characterization of the effluent was made in the terms of its organic load (Total Organic Carbon (TOC), Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD5)), biodegradability (BOD5/COD ratio) and solids content (total solids and turbidity). For CC, the jar test was used to determine both the most favorable dosage of coagulant and pH of the process (i.e., 600 mg/L of Al2(SO4)3 at pH of 9.3). CC let to remove ca. 93% of turbidity, 53% of COD and 24% of TOC. It also increased BOD5/COD ratio of raw textile wastewater from 0.16 to 0.27. Next, CC effluent was treated by EO. Its performance was optimized using Box-Behnken experimental Design and Response Surface Methodology. The following EO optimal conditions were found: current density = 15 mA/cm2, conductivity = 4.7 mS/cm and pH = 5.6. At these conditions, the sequential CC-EO process removed 100% of color, 93.5% of COD, and 75% of TOC after 45 min of electrolysis with an estimated operating cost of 6.91 USD/m3. Moreover, the CC-EO process yield a highly oxidized (Average Oxidation State, AOS = 2.3) and biocompatible (BOD5/COD >0.4) effluent. © 2018 Elsevier Ltdeng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=7880
dc.identifier.doi10.1016/j.jwpe.2018.01.005
dc.identifier.issn22147144
dc.identifier.otherWOS;000431414300009
dc.identifier.otherSCOPUS;2-s2.0-85042679808
dc.identifier.urihttp://hdl.handle.net/10784/28257
dc.language.isoeng
dc.publisherElsevier Ltd
dc.relationDOI;10.1016/j.jwpe.2018.01.005
dc.relationWOS;000431414300009
dc.relationSCOPUS;2-s2.0-85042679808
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85042679808&doi=10.1016%2fj.jwpe.2018.01.005&partnerID=40&md5=233b082e7fb0a5c7e83896dcdee1e719
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/2214-7144
dc.sourceJournal of Water Process Engineering
dc.subjectBDD anodeeng
dc.subjectChemical coagulationeng
dc.subjectElectro-oxidationeng
dc.subjectIndustrial textile wastewatereng
dc.subjectOptimizationeng
dc.titleOptimization of sequential chemical coagulation - electro-oxidation process for the treatment of an industrial textile wastewatereng
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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