Enhancement of the advanced Fenton process (Fe0/H2O2) by ultrasound for the mineralization of phenol

Y. Segura, Fernando Martínez, Juan Antonio Melero, Raul Molina, Rashmi Chand, David H. Bremner

Research output: Contribution to journalArticle

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Abstract

In this study, a successful mineralization of phenol was achieved by means of coupling zero-valent iron (ZVI) particles, hydrogen peroxide and a short input of ultrasonic irradiation. This short sono-advanced Fenton process (AFP) provided a better performance of ZVI in a subsequent silent degradation stage, which involves neither extra cost of energy nor additional oxidant. The short input of ultrasound (US) irradiation enhanced the activity of the Fe0/H2O2 system in terms of the total organic carbon (TOC) removal. Then, the TOC mineralization continued during the silent stage, even after the total consumption of hydrogen peroxide, reaching values of ca. 90% TOC conversions over 24 h. This remarkable activity is attributed to the capacity of the ZVI/iron oxide composite formed during the degradation for the generation of oxidizing radical species and to the formation of another reactive oxidant species, such as the ferryl ion. The modification of the initial conditions of the sono-AFP system such as the ultrasonic irradiation time and the hydrogen peroxide dosage, showed significant variations in terms of TOC mineralization for the ongoing silent degradation stage. An appropriate selection of operation conditions will lead to an economical and highly efficient technology with eventual large-scale commercial applications for the degradation organic pollutants in aqueous effluents.
Original languageEnglish
Pages (from-to)100-106
Number of pages7
JournalApplied Catalysis B: Environmental
Volume113-114
DOIs
StatePublished - Feb 2012

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Organic carbon
Ultrasonics
Degradation
total organic carbon
mineralization
degradation
Aerobiosis
4-Aminobutyrate Transaminase
Contraception
Hydrogen peroxide
Irradiation
Iron
hydrogen peroxide
irradiation
iron
Hand Injuries
Oxidants
Phenols
oxidant
phenol

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Segura, Y., Martínez, F., Melero, J. A., Molina, R., Chand, R., & Bremner, D. H. (2012). Enhancement of the advanced Fenton process (Fe0/H2O2) by ultrasound for the mineralization of phenol. Applied Catalysis B: Environmental, 113-114, 100-106. DOI: 10.1016/j.apcatb.2011.11.024

Segura, Y.; Martínez, Fernando; Melero, Juan Antonio; Molina, Raul; Chand, Rashmi; Bremner, David H. / Enhancement of the advanced Fenton process (Fe0/H2O2) by ultrasound for the mineralization of phenol.

In: Applied Catalysis B: Environmental, Vol. 113-114, 02.2012, p. 100-106.

Research output: Contribution to journalArticle

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abstract = "In this study, a successful mineralization of phenol was achieved by means of coupling zero-valent iron (ZVI) particles, hydrogen peroxide and a short input of ultrasonic irradiation. This short sono-advanced Fenton process (AFP) provided a better performance of ZVI in a subsequent silent degradation stage, which involves neither extra cost of energy nor additional oxidant. The short input of ultrasound (US) irradiation enhanced the activity of the Fe0/H2O2 system in terms of the total organic carbon (TOC) removal. Then, the TOC mineralization continued during the silent stage, even after the total consumption of hydrogen peroxide, reaching values of ca. 90% TOC conversions over 24 h. This remarkable activity is attributed to the capacity of the ZVI/iron oxide composite formed during the degradation for the generation of oxidizing radical species and to the formation of another reactive oxidant species, such as the ferryl ion. The modification of the initial conditions of the sono-AFP system such as the ultrasonic irradiation time and the hydrogen peroxide dosage, showed significant variations in terms of TOC mineralization for the ongoing silent degradation stage. An appropriate selection of operation conditions will lead to an economical and highly efficient technology with eventual large-scale commercial applications for the degradation organic pollutants in aqueous effluents.",
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Segura, Y, Martínez, F, Melero, JA, Molina, R, Chand, R & Bremner, DH 2012, 'Enhancement of the advanced Fenton process (Fe0/H2O2) by ultrasound for the mineralization of phenol' Applied Catalysis B: Environmental, vol 113-114, pp. 100-106. DOI: 10.1016/j.apcatb.2011.11.024

Enhancement of the advanced Fenton process (Fe0/H2O2) by ultrasound for the mineralization of phenol. / Segura, Y.; Martínez, Fernando; Melero, Juan Antonio; Molina, Raul; Chand, Rashmi; Bremner, David H.

In: Applied Catalysis B: Environmental, Vol. 113-114, 02.2012, p. 100-106.

Research output: Contribution to journalArticle

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T1 - Enhancement of the advanced Fenton process (Fe0/H2O2) by ultrasound for the mineralization of phenol

AU - Segura,Y.

AU - Martínez,Fernando

AU - Melero,Juan Antonio

AU - Molina,Raul

AU - Chand,Rashmi

AU - Bremner,David H.

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N2 - In this study, a successful mineralization of phenol was achieved by means of coupling zero-valent iron (ZVI) particles, hydrogen peroxide and a short input of ultrasonic irradiation. This short sono-advanced Fenton process (AFP) provided a better performance of ZVI in a subsequent silent degradation stage, which involves neither extra cost of energy nor additional oxidant. The short input of ultrasound (US) irradiation enhanced the activity of the Fe0/H2O2 system in terms of the total organic carbon (TOC) removal. Then, the TOC mineralization continued during the silent stage, even after the total consumption of hydrogen peroxide, reaching values of ca. 90% TOC conversions over 24 h. This remarkable activity is attributed to the capacity of the ZVI/iron oxide composite formed during the degradation for the generation of oxidizing radical species and to the formation of another reactive oxidant species, such as the ferryl ion. The modification of the initial conditions of the sono-AFP system such as the ultrasonic irradiation time and the hydrogen peroxide dosage, showed significant variations in terms of TOC mineralization for the ongoing silent degradation stage. An appropriate selection of operation conditions will lead to an economical and highly efficient technology with eventual large-scale commercial applications for the degradation organic pollutants in aqueous effluents.

AB - In this study, a successful mineralization of phenol was achieved by means of coupling zero-valent iron (ZVI) particles, hydrogen peroxide and a short input of ultrasonic irradiation. This short sono-advanced Fenton process (AFP) provided a better performance of ZVI in a subsequent silent degradation stage, which involves neither extra cost of energy nor additional oxidant. The short input of ultrasound (US) irradiation enhanced the activity of the Fe0/H2O2 system in terms of the total organic carbon (TOC) removal. Then, the TOC mineralization continued during the silent stage, even after the total consumption of hydrogen peroxide, reaching values of ca. 90% TOC conversions over 24 h. This remarkable activity is attributed to the capacity of the ZVI/iron oxide composite formed during the degradation for the generation of oxidizing radical species and to the formation of another reactive oxidant species, such as the ferryl ion. The modification of the initial conditions of the sono-AFP system such as the ultrasonic irradiation time and the hydrogen peroxide dosage, showed significant variations in terms of TOC mineralization for the ongoing silent degradation stage. An appropriate selection of operation conditions will lead to an economical and highly efficient technology with eventual large-scale commercial applications for the degradation organic pollutants in aqueous effluents.

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Segura Y, Martínez F, Melero JA, Molina R, Chand R, Bremner DH. Enhancement of the advanced Fenton process (Fe0/H2O2) by ultrasound for the mineralization of phenol. Applied Catalysis B: Environmental. 2012 Feb;113-114:100-106. Available from, DOI: 10.1016/j.apcatb.2011.11.024