2021-04-162009-01-010273122319969732WOS;000272452900009PUBMED;19934502SCOPUS;2-s2.0-85000288396http://hdl.handle.net/10784/29367In this work, the Box-Benkhen experimental Design (BBD) was applied for the optimization of the parameters of the electrocatalytic degradation of wastewaters resulting from a phenolic resins industry placed in the suburbs of Medellin (Colombia). The direct and the oxidant assisted electro-oxidation experiments were carried out in a laboratory scale batch cell reactor, with monopolar configuration, and electrodes made of graphite (anode) and titanium (cathode). A multifactorial experimental design was proposed, including the following experimental variables: initial phenol concentration, conductivity, and pH. The direct electro-oxidation process allowed to reach ca. 88% of phenol degradation, 38% of mineralization (TOC), 52% of Chemical Oxygen Demand (COD) degradation, and an increase in water biodegradability of 13%. The synergetic effect of the electro-oxidation process and the respective oxidant agent (Fenton reactant, potassium permanganate, or sodium persulfate) let to a significant increase in the rate of the degradation process. At the optimized variables values, it was possible to reach ca. 99% of phenol degradation, 80% of TOC and 88% of COD degradation. A kinetic study was accomplished, which included the identification of the intermediate compounds generated during the oxidation process.enghttps://v2.sherpa.ac.uk/id/publication/issn/0273-1223BiodegradationChemical oxygen demandChemicals removal (water treatment)DegradationDesignGraphite electrodesOptimizationOxidantsOxidation resistanceOxygenPhenolic resinsPhenolsPotassiumReaction intermediatesResinsSodiumStatisticsTitaniumWastewaterWastewater treatmentBatch cellsColombiaDegradation processElectro-oxidation processElectrocatalyticExperimental designHigh concentrationIntermediate compoundKinetic studyLaboratory scaleOrganic matterOxidation processPhenol concentrationPhenol degradationPotassium permanganateSodium persulfateSynergetic effectAnodic oxidationgraphiteorganic matterpermanganate potassiumphenolresintitaniumbiodegradationcatalysischemical oxygen demandelectrodeexperimental designmineralizationoptimizationorganic matteroxidantoxidationpHphenolreaction kineticsresinsuburban areatitaniumwastewaterwater treatmentbiodegradabilitychemical oxygen dinfo:eu-repo/semantics/article2021-04-16GilPavas, EdisonBetancourt, AlejandraAngulo, MonicaDobrosz-Gomez, IzabelaAngel Gomez-Garcia, Miguel10.2166/wst.2009.705