Coagulation-flocculation sequential with Fenton or Photo-Fenton processes as an alternative for the industrial textile wastewater treatment

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dc.citation.journalTitleJournal of Environmental Managementeng
dc.contributor.authorGilPavas, E.
dc.contributor.authorDobrosz-Gómez, I.
dc.contributor.authorGómez-García, M.Á.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería de Procesosspa
dc.contributor.researchgroupDesarrollo y Diseño de Procesosspa
dc.date.accessioned2021-04-12T19:06:20Z
dc.date.available2021-04-12T19:06:20Z
dc.date.issued2017-04-15
dc.description.abstractIn this study, the industrial textile wastewater was treated using a chemical-based technique (coagulation-flocculation, C-F) sequential with an advanced oxidation process (AOP: Fenton or Photo-Fenton). During the C-F, Al2(SO4)3 was used as coagulant and its optimal dose was determined using the jar test. The following operational conditions of C-F, maximizing the organic matter removal, were determined: 700 mg/L of Al2(SO4)3 at pH = 9.96. Thus, the C-F allowed to remove 98% of turbidity, 48% of Chemical Oxygen Demand (COD), and let to increase in the BOD5/COD ratio from 0.137 to 0.212. Subsequently, the C-F effluent was treated using each of AOPs. Their performances were optimized by the Response Surface Methodology (RSM) coupled with a Box-Behnken experimental design (BBD). The following optimal conditions of both Fenton (Fe2+/H2O2) and Photo-Fenton (Fe2+/H2O2/UV) processes were found: Fe2+ concentration = 1 mM, H2O2 dose = 2 mL/L (19.6 mM), and pH = 3. The combination of C-F pre-treatment with the Fenton reagent, at optimized conditions, let to remove 74% of COD during 90 min of the process. The C-F sequential with Photo-Fenton process let to reach 87% of COD removal, in the same time. Moreover, the BOD5/COD ratio increased from 0.212 to 0.68 and from 0.212 to 0.74 using Fenton and Photo-Fenton processes, respectively. Thus, the enhancement of biodegradability with the physico-chemical treatment was proved. The depletion of H2O2 was monitored during kinetic study. Strategies for improving the reaction efficiency, based on the H2O2 evolution, were also tested. © 2017 Elsevier Ltdeng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=6187
dc.identifier.doi10.1016/j.jenvman.2017.01.015
dc.identifier.issn03014797
dc.identifier.issn10958630
dc.identifier.otherWOS;000396957300020
dc.identifier.otherPUBMED;28092755
dc.identifier.otherSCOPUS;2-s2.0-85009227831
dc.identifier.urihttp://hdl.handle.net/10784/28248
dc.language.isoeng
dc.publisherEditorial Board
dc.relationDOI;10.1016/j.jenvman.2017.01.015
dc.relationWOS;000396957300020
dc.relationPUBMED;28092755
dc.relationSCOPUS;2-s2.0-85009227831
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85009227831&doi=10.1016%2fj.jenvman.2017.01.015&partnerID=40&md5=bff195637266fdf8ce395a962e71f9b1
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0301-4797
dc.sourceJournal of Environmental Management
dc.subjectaluminum sulfateeng
dc.subjectferrous gluconateeng
dc.subjecthydrogen peroxideeng
dc.subjectorganic mattereng
dc.subjecthydrogen peroxideeng
dc.subjectindustrial wasteeng
dc.subjectironeng
dc.subjectwaste watereng
dc.subjectwater pollutanteng
dc.subjectbiodegradationeng
dc.subjectchemical oxygen demandeng
dc.subjectcoagulationeng
dc.subjectdose-response relationshipeng
dc.subjectexperimental designeng
dc.subjectflocculationeng
dc.subjectindustrial wasteeng
dc.subjectnumerical methodeng
dc.subjectorganic mattereng
dc.subjectoxidationeng
dc.subjectphysicochemical propertyeng
dc.subjectpollutant removaleng
dc.subjectwastewater treatmenteng
dc.subjectanalysis of varianceeng
dc.subjectArticleeng
dc.subjectbiochemical oxygen demandeng
dc.subjectbiodegradabilityeng
dc.subjectchemical oxygen demandeng
dc.subjectcontrolled studyeng
dc.subjecteffluenteng
dc.subjectexperimental designeng
dc.subjectflocculationeng
dc.subjectoxidationeng
dc.subjectpHeng
dc.subjectresponse surface methodeng
dc.subjecttextile industryeng
dc.subjectturbidityeng
dc.subjectwaste water managementeng
dc.subjectflocculationeng
dc.subjectindustrial wasteeng
dc.subjectoxidation reduction reactioneng
dc.subjectsewageeng
dc.subjecttextileeng
dc.subjectwaste watereng
dc.subjectwater pollutanteng
dc.subjectFlocculationeng
dc.subjectHydrogen Peroxideeng
dc.subjectIndustrial Wasteeng
dc.subjectIroneng
dc.subjectOxidation-Reductioneng
dc.subjectTextileseng
dc.subjectWaste Disposaleng
dc.subjectFluideng
dc.subjectWaste Watereng
dc.subjectWater Pollutantseng
dc.subjectChemicaleng
dc.titleCoagulation-flocculation sequential with Fenton or Photo-Fenton processes as an alternative for the industrial textile wastewater treatmenteng
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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