Integrated electrocoagulation-electrooxidation process for the treatment of soluble coffee effluent: Optimization of COD degradation and operation time analysis

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dc.citation.journalTitleJournal of Environmental Managementeng
dc.contributor.authorIbarra-Taquez HN
dc.contributor.authorGilPavas E
dc.contributor.authorBlatchley ER
dc.contributor.authorGómez-García MÁ
dc.contributor.authorDobrosz-Gómez I
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.issued2017-09-15
dc.description.abstractSoluble coffee production generates wastewater containing complex mixtures of organic macromolecules. In this work, a sequential Electrocoagulation-Electrooxidation (EC-EO) process, using aluminum and graphite electrodes, was proposed as an alternative way for the treatment of soluble coffee effluent. Process operational parameters were optimized, achieving total decolorization, as well as 74% and 63.5% of COD and TOC removal, respectively. The integrated EC-EO process yielded a highly oxidized (AOS = 1.629) and biocompatible (BOD5/COD approximate to 0.6) effluent. The Molecular Weight Distribution (MWD) analysis showed that during the EC-EO process, EC effectively decomposed contaminants with molecular weight in the range of 10-30 kDa. In contrast, EO was quite efficient in mineralization of contaminants with molecular weight higher than 30 kDa. A kinetic analysis allowed determination of the time required to meet Colombian permissible discharge limits. Finally, a comprehensive operational cost analysis was performed. The integrated EC-EO process was demonstrated as an efficient alternative for the treatment of industrial effluents resulting from soluble coffee production. (C) 2017 Elsevier Ltd. All rights reserved.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=6732
dc.identifier.doi10.1016/j.jenvman.2017.05.095
dc.identifier.issn03014797
dc.identifier.issn10958630
dc.identifier.otherWOS;000406564400052
dc.identifier.otherPUBMED;28628869
dc.identifier.otherSCOPUS;2-s2.0-85020551038
dc.identifier.urihttp://hdl.handle.net/10784/28253
dc.language.isoeng
dc.publisherEditorial Board
dc.relationDOI;10.1016/j.jenvman.2017.05.095
dc.relationWOS;000406564400052
dc.relationPUBMED;28628869
dc.relationSCOPUS;2-s2.0-85020551038
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85020551038&doi=10.1016%2fj.jenvman.2017.05.095&partnerID=40&md5=a9474f66a960f22a32dbc6d20ed4f43c
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0301-4797
dc.sourceJournal of Environmental Management
dc.subjectDecolorizationeng
dc.subjectElectrochemical processeseng
dc.subjectContaminants reductioneng
dc.subjectOperational cost analysiseng
dc.titleIntegrated electrocoagulation-electrooxidation process for the treatment of soluble coffee effluent: Optimization of COD degradation and operation time analysiseng
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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