Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagent

Treating industrial wastewater represents a serious problem nowadays; it requires a strong understanding of the particular systems and (in most of cases) ad hoc solutions. This work describes the use of Fenton’s reagent (reaction between H2O2 and Fe(II)) for removing total organic carbon (TOC) from...

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Main Authors: Oscar Mauricio Martínez Ávila, José Herney Ramírez Franco, Magda Lorena Toledo Reyes
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2013-05-01
Series:Ingeniería e Investigación
Subjects:
Online Access:https://revistas.unal.edu.co/index.php/ingeinv/article/view/39507
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author Oscar Mauricio Martínez Ávila
José Herney Ramírez Franco
Magda Lorena Toledo Reyes
author_facet Oscar Mauricio Martínez Ávila
José Herney Ramírez Franco
Magda Lorena Toledo Reyes
author_sort Oscar Mauricio Martínez Ávila
collection DOAJ
description Treating industrial wastewater represents a serious problem nowadays; it requires a strong understanding of the particular systems and (in most of cases) ad hoc solutions. This work describes the use of Fenton’s reagent (reaction between H2O2 and Fe(II)) for removing total organic carbon (TOC) from a particular chemical laboratory’s lab-scale batch reactor wastewater. Some operating variables (hydrogen peroxide and ferrous ion concentration, temperature and pH) were evaluated regarding final TOC removal. An economic optimisation was made by means of a second order polynomial model representing these variables’ behaviour regarding TOC removal (0.94 R2). The highest experimentally reached TOC removal was 88.8% at 50 mg/L [Fe(II)]0, 50 mM [H2O2]0 , pH=2.8 at 80oC, while 53.9% was obtained in optimised conditions, i.e. 36 mg/L [Fe(II)]0 , 45.5 mM [H2O2]0 , pH=2.6 at 20°C. It was found that the Fenton process could achieve 41% removal, even in adverse conditions (pH close to 6). It was noted from the analysis that both H2O2 concentration and temperature had a powerful effect on organic matter degradation efficiency, as well as on total treatment cost.
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spelling doaj.art-1df1ad73675c49bd86afe5b3eedb13622022-12-22T01:43:59ZengUniversidad Nacional de ColombiaIngeniería e Investigación0120-56092248-87232013-05-01332303533816Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagentOscar Mauricio Martínez Ávila0José Herney Ramírez Franco1Magda Lorena Toledo Reyes2Universidad Nacional de Colombia - sede BogotáUniversidad Nacional de ColombiaUniversidad Nacional de ColombiaTreating industrial wastewater represents a serious problem nowadays; it requires a strong understanding of the particular systems and (in most of cases) ad hoc solutions. This work describes the use of Fenton’s reagent (reaction between H2O2 and Fe(II)) for removing total organic carbon (TOC) from a particular chemical laboratory’s lab-scale batch reactor wastewater. Some operating variables (hydrogen peroxide and ferrous ion concentration, temperature and pH) were evaluated regarding final TOC removal. An economic optimisation was made by means of a second order polynomial model representing these variables’ behaviour regarding TOC removal (0.94 R2). The highest experimentally reached TOC removal was 88.8% at 50 mg/L [Fe(II)]0, 50 mM [H2O2]0 , pH=2.8 at 80oC, while 53.9% was obtained in optimised conditions, i.e. 36 mg/L [Fe(II)]0 , 45.5 mM [H2O2]0 , pH=2.6 at 20°C. It was found that the Fenton process could achieve 41% removal, even in adverse conditions (pH close to 6). It was noted from the analysis that both H2O2 concentration and temperature had a powerful effect on organic matter degradation efficiency, as well as on total treatment cost.https://revistas.unal.edu.co/index.php/ingeinv/article/view/39507Fenton’s reagentadvanced oxidationlaboratory wastewaterTOC removal
spellingShingle Oscar Mauricio Martínez Ávila
José Herney Ramírez Franco
Magda Lorena Toledo Reyes
Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagent
Ingeniería e Investigación
Fenton’s reagent
advanced oxidation
laboratory wastewater
TOC removal
title Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagent
title_full Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagent
title_fullStr Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagent
title_full_unstemmed Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagent
title_short Total organic carbon removal from a chemical lab’s wastewater using Fenton’s reagent
title_sort total organic carbon removal from a chemical lab s wastewater using fenton s reagent
topic Fenton’s reagent
advanced oxidation
laboratory wastewater
TOC removal
url https://revistas.unal.edu.co/index.php/ingeinv/article/view/39507
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