Colombia | info:eu-repo/semantics/article
dc.contributorUniversidad EAFIT. Departamento de Ingeniería de Procesos
dc.contributorProcesos Ambientales (GIPAB)
dc.creatorGilPavas, E.
dc.creatorDobrosz-Gomez, I.
dc.creatorGomez-Garcia, M. A.
dc.creatorGilPavas, E.
dc.creatorDobrosz-Gomez, I.
dc.creatorGomez-Garcia, M. A.
dc.date.accessioned2021-04-16T20:27:36Z
dc.date.available2021-04-16T20:27:36Z
dc.date.created2021-04-16T20:27:36Z
dc.date.issued2011-02-01
dc.identifier02731223
dc.identifier19969732
dc.identifierWOS;000287181200003
dc.identifierPUBMED;21278458
dc.identifierSCOPUS;2-s2.0-79952217802
dc.identifierhttp://hdl.handle.net/10784/29365
dc.identifier10.2166/wst.2011.232
dc.description.abstractThe capacity of the electro-coagulation (EC) process for the treatment of the wastewater containing Cr3+, resulting from a leather tannery industry placed in Medellin (Colombia), was evaluated. In order to assess the effect of some parameters, such as: the electrode type (Al and/or Fe), the distance between electrodes, the current density, the stirring velocity, and the initial Cr3+ concentration on its efficiency of removal (%RCr+3), a multifactorial experimental design was used. The %RCr3+ was defined as the response variable for the statistical analysis. In order to optimise the operational values for the chosen parameters, the response surface method (RSM) was applied. Additionally, the Biological Oxygen Demand (BOD5), the Chemical Oxygen Demand (COD), and the Total Organic Carbon (TOC) were monitored during the EC process. The electrodes made of aluminium appeared to be the most effective in the chromium removal from the wastewater under study. At pH equal to 4.52 and at 28 degrees C, the optimal conditions of Cr3+ removal using the EC process were found, as follows: the initial Cr3+ concentration=3,596 mg/L, the electrode gap=0.5 cm, the stirring velocity=382.3 rpm, and the current density=57.87 mA/cm2. At those conditions, it was possible to reach 99.76% of Cr3+ removal, and 64% and 61% of mineralisation (TOC) and COD removal, respectively. A kinetic analysis was performed in order to verify the response capacity of the EC process at optimised parameter values.
dc.languageeng
dc.publisherIWA PUBLISHING
dc.relationhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-79952217802&doi=10.2166%2fwst.2011.232&partnerID=40&md5=11badd9efd1c0327cbab2c76c19c9c06
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0273-1223
dc.sourceWATER SCIENCE AND TECHNOLOGY
dc.subjectBiological oxygen demand
dc.subjectChromium removal
dc.subjectCoagulation process
dc.subjectCOD removal
dc.subjectColombia
dc.subjectElectro-coagulation
dc.subjectElectrode gap
dc.subjectElectrode type
dc.subjectExperimental design
dc.subjectIts efficiencies
dc.subjectKinetic analysis
dc.subjectLeather tanneries
dc.subjectMineralisation
dc.subjectOptimal conditions
dc.subjectOptimisations
dc.subjectParameter values
dc.subjectResponse surface method
dc.subjectStatistical analysis
dc.subjectStatistical optimisation
dc.subjectStirring velocity
dc.subjectTannery wastewater
dc.subjectTotal organic carbon
dc.subjectTrivalent chromium
dc.subjectBiochemical oxygen demand
dc.subjectChromium
dc.subjectCoagulation
dc.subjectElectrodes
dc.subjectLeather
dc.subjectOptimization
dc.subjectOrganic carbon
dc.subjectOxygen
dc.subjectTanning
dc.subjectWastewater
dc.subjectWastewater treatment
dc.subjectChemicals removal (water treatment)
dc.subjectaluminum
dc.subjectchromium
dc.subjectiron
dc.subjecttrivalent chromium
dc.subjectunclassified drug
dc.subjectbiochemical oxygen demand
dc.subjectchromium
dc.subjectcoagulation
dc.subjectelectrode
dc.subjectindustrial waste
dc.subjectoptimization
dc.subjectpollutant removal
dc.subjectsecondary sector industry
dc.subjectwastewater
dc.subjectarticle
dc.subjectbiochemical oxygen demand
dc.subjectchemical oxygen demand
dc.subjectelectrocoagulation
dc.subjectkinetics
dc.subjectleather industry
dc.subjectmonitoring
dc.subjectparameter
dc.subjectpH
dc.subjectstatistical analysis;
dc.titleThe removal of the trivalent chromium from the leather tannery wastewater: the optimisation of the electro-coagulation process parameters.
dc.typeinfo:eu-repo/semantics/article
dc.typearticle
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typepublishedVersion


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