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Tratamiento de aguas residuales de la industria del café soluble vía Electrocoagulación - Oxidación Anódica. Selección de los electrodos

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dc.contributor.authorDobrosz-Gomez, Izabelaspa
dc.contributor.authorGómez García, Miguel Angelspa
dc.contributor.authorIbarra Taquez, Harold Norbeyspa
dc.date.accessioned2020-06-21 00:00:00
dc.date.accessioned2022-06-17T20:20:23Z
dc.date.available2020-06-21 00:00:00
dc.date.available2022-06-17T20:20:23Z
dc.date.issued2020-06-21
dc.description.abstractLa industria del café soluble genera aguas residuales que contienen mezclas complejas de sustancias difíciles de degradar. Su mineralización no es completamente efectiva mediante tratamientos convencionales. En este trabajo, se estudia un proceso secuencial de electrocoagulación - oxidación anódica (EC-OA) como alternativa de tratamiento. En específico, se evaluó experimentalmente el efecto del material del electrodo (v.g., dos ánodos (grafito y Diamante Dopado con Boro (DDB)) y seis cátodos (acero inoxidable, titanio, hierro, aluminio, grafito y DDB)) y del electrolito de soporte (NaCl o Na2SO4) sobre el rendimiento de degradación en términos de la reducción de color y de la demanda química de oxígeno (DQO), así como de la formación de sólidos suspendidos totales (SST). Los resultados obtenidos fueron comparados con la última regulación ambiental colombiana. Adicionalmente, para cada caso, se realizó un análisis integral de los costos operacionales. Toda la información anterior permitió seleccionar dos sistemas de electrodos como los más prometedores para la etapa de OA: DDB-acero inoxidable + Na2SO4: muy eficiente pero costoso (reducción de DQO = 75% y 12 USD/m3) y grafito-acero inoxidable + NaCl: menos eficiente y más económico (reducción de DQO = 67% y 7 USD/m3).spa
dc.description.abstractThe industry of soluble coffee generates wastewater containing complex and hard to degrade mixtures of different substances. Their mineralization is not completely effective through conventional treatment methods. In this work, as a treatment alternative, a sequential Electrocoagulation-Anodic Oxidation (EC-AO) process is studied. The effect of electrode material (v.g., two different anodes (graphite and Boron-Doped Diamond (BDD)) and six different cathodes (stainless steel, titanium, iron, aluminum, graphite and BDD)) and of support electrolyte (NaCl or Na2SO4) on degradation performance of AO, in the terms of color and chemical oxygen demand (COD) reduction, as well as Total Suspended Solids (TSS) formation and pH, were experimentally tested. The obtained results were compared with the most recent Colombian environmental regulation. Additionally, for each case, a comprehensive operational costs analysis was performed. All the above information allowed to select two electrode systems as the most promising for the AO step: BDD-stainless steel + Na2SO4: very efficient but expensive (reduction of COD = 75% and 12 USD/ m3) and graphite-stainless steel + NaCl: less efficient and more economic one (reduction of COD = 67% and 7 USD/m3).eng
dc.format.mimetypeapplication/pdfspa
dc.identifier.doi10.24050/reia.v17i34.1328
dc.identifier.eissn2463-0950
dc.identifier.issn1794-1237
dc.identifier.urihttps://repository.eia.edu.co/handle/11190/5085
dc.identifier.urlhttps://doi.org/10.24050/reia.v17i34.1328
dc.language.isospaspa
dc.publisherFondo Editorial EIA - Universidad EIAspa
dc.relation.bitstreamhttps://revistas.eia.edu.co/index.php/reveia/article/download/1328/1337
dc.relation.citationeditionNúm. 34 , Año 2020spa
dc.relation.citationendpage17
dc.relation.citationissue34spa
dc.relation.citationstartpage1
dc.relation.citationvolume17spa
dc.relation.ispartofjournalRevista EIAspa
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dc.rightsRevista EIA - 2020spa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.coarhttp://purl.org/coar/access_right/c_abf2spa
dc.rights.creativecommonsEsta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-SinDerivadas 4.0.spa
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0spa
dc.sourcehttps://revistas.eia.edu.co/index.php/reveia/article/view/1328spa
dc.subjectAguas residuales industrialesspa
dc.subjectCafé solublespa
dc.subjectProcesos Avanzados de Oxidaciónspa
dc.subjectElectrocoagulaciónspa
dc.subjectOxidación anódicaspa
dc.subjectAnálisis de costos operacionalesspa
dc.subjecttratamiento de aguas residuales industrialesspa
dc.subjectIndustrial wastewatereng
dc.subjectSoluble coffeeeng
dc.subjectAdvanced Oxidation Processeng
dc.subjectElectrocoagulationeng
dc.subjectAnodic oxidationeng
dc.subjectOperational cost analysiseng
dc.titleTratamiento de aguas residuales de la industria del café soluble vía Electrocoagulación - Oxidación Anódica. Selección de los electrodosspa
dc.title.translatedThe treatment of industrial wastewater originated from soluble coffee production via electrocoagulation - anodic oxidation. Electrodes selectioneng
dc.typeArtículo de revistaspa
dc.typeJournal articleeng
dc.type.coarhttp://purl.org/coar/resource_type/c_6501spa
dc.type.coarhttp://purl.org/coar/resource_type/c_6501spa
dc.type.coarversionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/articlespa
dc.type.redcolhttp://purl.org/redcol/resource_type/ARTREFspa
dc.type.versioninfo:eu-repo/semantics/publishedVersionspa
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