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Adsorption and catalytic oxidation of organic pollutants using Fe-zeolite.

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Title: Adsorption and catalytic oxidation of organic pollutants using Fe-zeolite.
Authors: Russo, Analia V.1, Velasco Andrade, Cesar1, De Angelis, Laura E.2, Jacobo, Silvia E.1 silviajacobo@gmail.com
Source: Water Science & Technology. 2018, Vol. 77 Issue 4, p939-947. 9p.
Subjects: Permeable reactive barriers, Aromatic compounds & the environment, Groundwater purification, Adsorption (Chemistry), Catalytic oxidation
Abstract: In this work, a natural zeolite, modified and loaded with iron (NZ-A-Fe) as a heterogeneous catalyst, was characterized for its suitability as a permeable reactive barrier (PRB) material for treatment of aromatic hydrocarbons in groundwater. Adsorption and oxidation processes were analyzed. Batch adsorption tests for benzene, toluene and xylene (BTX) aqueous concentrated solutions were performed at neutral pH. Kinetic adsorption was described with the pseudo-second-order model. Experiments were performed using a stirred batch reactor with near 11 mM initial BTX concentration applying NZ-A-Fe as solid catalyst and H2O2 as an oxidant. BTX removal reached 80% in 600 min in these experimental conditions. Catalytic oxidation was described with a pseudo-first-order kinetic model. No significant iron leaching was detected during all the experiences. These investigations show that coupling adsorption with catalytic oxidation with this novel system is a promising procedure to simultaneously remove BTX from moderately concentrated aqueous solution at neutral pH in groundwater. [ABSTRACT FROM AUTHOR]
Copyright of Water Science & Technology is the property of IWA Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 128239804
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Adsorption and catalytic oxidation of organic pollutants using Fe-zeolite.
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  Data: <searchLink fieldCode="AR" term="%22Russo%2C+Analia+V%2E%22">Russo, Analia V.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Velasco+Andrade%2C+Cesar%22">Velasco Andrade, Cesar</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22De+Angelis%2C+Laura+E%2E%22">De Angelis, Laura E.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Jacobo%2C+Silvia+E%2E%22">Jacobo, Silvia E.</searchLink><relatesTo>1</relatesTo><i> silviajacobo@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Water+Science+%26+Technology%22">Water Science & Technology</searchLink>. 2018, Vol. 77 Issue 4, p939-947. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Permeable+reactive+barriers%22">Permeable reactive barriers</searchLink><br /><searchLink fieldCode="DE" term="%22Aromatic+compounds+%26+the+environment%22">Aromatic compounds & the environment</searchLink><br /><searchLink fieldCode="DE" term="%22Groundwater+purification%22">Groundwater purification</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+%28Chemistry%29%22">Adsorption (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+oxidation%22">Catalytic oxidation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this work, a natural zeolite, modified and loaded with iron (NZ-A-Fe) as a heterogeneous catalyst, was characterized for its suitability as a permeable reactive barrier (PRB) material for treatment of aromatic hydrocarbons in groundwater. Adsorption and oxidation processes were analyzed. Batch adsorption tests for benzene, toluene and xylene (BTX) aqueous concentrated solutions were performed at neutral pH. Kinetic adsorption was described with the pseudo-second-order model. Experiments were performed using a stirred batch reactor with near 11 mM initial BTX concentration applying NZ-A-Fe as solid catalyst and H2O2 as an oxidant. BTX removal reached 80% in 600 min in these experimental conditions. Catalytic oxidation was described with a pseudo-first-order kinetic model. No significant iron leaching was detected during all the experiences. These investigations show that coupling adsorption with catalytic oxidation with this novel system is a promising procedure to simultaneously remove BTX from moderately concentrated aqueous solution at neutral pH in groundwater. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Water Science & Technology is the property of IWA Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=128239804
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      – Type: doi
        Value: 10.2166/wst.2017.611
    Languages:
      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 939
    Subjects:
      – SubjectFull: Permeable reactive barriers
        Type: general
      – SubjectFull: Aromatic compounds & the environment
        Type: general
      – SubjectFull: Groundwater purification
        Type: general
      – SubjectFull: Adsorption (Chemistry)
        Type: general
      – SubjectFull: Catalytic oxidation
        Type: general
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      – TitleFull: Adsorption and catalytic oxidation of organic pollutants using Fe-zeolite.
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            NameFull: Russo, Analia V.
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            NameFull: Velasco Andrade, Cesar
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            NameFull: De Angelis, Laura E.
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            NameFull: Jacobo, Silvia E.
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              M: 02
              Text: 2018
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              Y: 2018
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