Electrochemical abatement of atrazine solutions using an undivided stirred tank cell with Pt or BDD Anode

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dc.careerEscuela de Ciencias Químicases
dc.category.authorprincipales
dc.contributor.authorEspinoza Montero, Patricio Javier
dc.contributor.correspondingEspinoza Montero, Patricio Javieres
dc.countryEcuadores
dc.date.accessioned2023-11-04T21:30:29Z
dc.date.available2023-11-04T21:30:29Z
dc.date.issued2018
dc.dedication.authorTCes
dc.description.abstractNowadays, the increasing pollution of natural water effluents with herbicides, such as atrazine (ATZ, 2-chloro-4-ethylamino-6-isopropylamino-s-triazine), is an emerging problem that has not received the sufficient attention. This work presents a study on ATZ degradation under an electrochemical advanced oxidation process (EAOP), such as anodic oxidation (AO). The degradation of 175 mL of 10 and 40 mg L-1 ATZ solutions was studied using Pt or BDD as anode. The assays were made with a stirred tank cell, using a supporting electrolyte of 0.050 mM of Na2SO4 at pH 3.0 by applying 0.18, 0.27 and 0.37 A cm-2. The degradation rate increased by increasing current density, regardless of the anode employed. Greater amounts of ATZ were removed at higher organic load. The pesticide decay always obeyed a pseudo-first-order kinetics. A high degradation efficiency of 97%-99% was obtained by the more powerful AO-BDD process at 0.37 A cm-2. High performance liquid chromatography (HPLC) was used to follow the evolution of major oxidation products by AO-BDD, such as desethyl atrazine, desethyl desisopropyl atrazine and cyanuric acid.es
dc.facultyCiencias Exactas y Naturaleses
dc.id.author2100381306es
dc.id.type1es
dc.identifier.doihttps://doi.org/10.29356/jmcs.v62i2.367es
dc.identifier.issn1870-249X
dc.identifier.urihttp://www.scielo.org.mx/pdf/jmcs/v62n2/1870-249X-jmcs-62-02-00295.pdfes
dc.identifier.urihttps://repositorio.puce.edu.ec/handle/123456789/4534
dc.indexed.databaseOtheres
dc.list.authorsBravo, N., Espinoza, P., Brillas, E., & Peralta, J.es
dc.magazine.pageRange295-304es
dc.magazine.titleJournal of the Mexican Chemical Societyes
dc.magazine.volumeChapter62(2)es
dc.rightsOpenAccesses
dc.statepublishedes
dc.subjectAgua - Tratamientoes
dc.subjectOxidaciónes
dc.subjectAtrazinaes
dc.titleElectrochemical abatement of atrazine solutions using an undivided stirred tank cell with Pt or BDD Anodees
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