Synchronized methylene blue removal using Fenton-like reaction induced by phosphorous oxoanion and submerged plasma irradiation process

Guntae Son, Do hyung Kim, Jung Seok Lee, Hyoung il Kim, Changha Lee, Sang Ryoung Kim, Hongshin Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In this study, a combination of phosphorus (PP) oxoanions in a submerged plasma irradiation (SPI) system was used to enhance the removal efficiency of dyes from wastewater. The SPI system showed synergistic methylene blue removal efficiency, due to the plasma irradiation and Fenton-like oxidation. The ferrous ions released from the iron electrode in the SPI system under plasmonic conditions form complexes with the PP anions, which can then react with dissolved oxygen (O2) or hydrogen peroxide (H2O2) via Fenton-like reactions. The experimental results revealed that a sodium triphosphate (TPP) combined SPI system has a higher dye removal efficiency than a tetrasodium pyrophosphate (DP) or a sodium hexametaphosphate (HMP) combined SPI system under similar dissolved iron ion concentrations. To confirm the accuracy of the proposed removal mechanism via Fenton-like oxidation, it was compared to SPI systems under an oxygen environment (TPP/SPI/O2 (k = 0.0182 s−1)) and a nitrogen environment (TPP/SPI/N2 (k = 0.0062 s−1)). The results indicate that the hydroxyl radical ([rad]OH) in the TPP/SPI/O2 system is the major oxidant in methylene blue removal, because the dye degradation rates dramatically decreased with the addition of radical scavengers such as tert-butanol (k = 0.0023 s−1) and methanol (k = 0.0021 s−1). On the other hand, no change was observed in the methylene blue removal efficiency of the TPP/SPI/O2 system when it was subjected to a wide range of pHs (3–9). In addition, it was proved that this system could be used to eliminate six different commercial dyes. The results of this study indicated that the TPP/SPI/O2 system is a promising advanced oxidation approach for dye wastewater treatment.

Original languageEnglish
Pages (from-to)77-84
Number of pages8
JournalJournal of Environmental Management
Volume206
DOIs
Publication statusPublished - 2018 Jan 15

Fingerprint

irradiation
Irradiation
Plasmas
plasma
dye
Dyes
oxidation
Oxidation
Phosphorus
removal
Sodium
sodium
Iron
phosphorus
iron
ion
Ions
scavenger
Dissolved oxygen
hydroxyl radical

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law

Cite this

Son, Guntae ; Kim, Do hyung ; Lee, Jung Seok ; Kim, Hyoung il ; Lee, Changha ; Kim, Sang Ryoung ; Lee, Hongshin. / Synchronized methylene blue removal using Fenton-like reaction induced by phosphorous oxoanion and submerged plasma irradiation process. In: Journal of Environmental Management. 2018 ; Vol. 206. pp. 77-84.
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abstract = "In this study, a combination of phosphorus (PP) oxoanions in a submerged plasma irradiation (SPI) system was used to enhance the removal efficiency of dyes from wastewater. The SPI system showed synergistic methylene blue removal efficiency, due to the plasma irradiation and Fenton-like oxidation. The ferrous ions released from the iron electrode in the SPI system under plasmonic conditions form complexes with the PP anions, which can then react with dissolved oxygen (O2) or hydrogen peroxide (H2O2) via Fenton-like reactions. The experimental results revealed that a sodium triphosphate (TPP) combined SPI system has a higher dye removal efficiency than a tetrasodium pyrophosphate (DP) or a sodium hexametaphosphate (HMP) combined SPI system under similar dissolved iron ion concentrations. To confirm the accuracy of the proposed removal mechanism via Fenton-like oxidation, it was compared to SPI systems under an oxygen environment (TPP/SPI/O2 (k = 0.0182 s−1)) and a nitrogen environment (TPP/SPI/N2 (k = 0.0062 s−1)). The results indicate that the hydroxyl radical ([rad]OH) in the TPP/SPI/O2 system is the major oxidant in methylene blue removal, because the dye degradation rates dramatically decreased with the addition of radical scavengers such as tert-butanol (k = 0.0023 s−1) and methanol (k = 0.0021 s−1). On the other hand, no change was observed in the methylene blue removal efficiency of the TPP/SPI/O2 system when it was subjected to a wide range of pHs (3–9). In addition, it was proved that this system could be used to eliminate six different commercial dyes. The results of this study indicated that the TPP/SPI/O2 system is a promising advanced oxidation approach for dye wastewater treatment.",
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Synchronized methylene blue removal using Fenton-like reaction induced by phosphorous oxoanion and submerged plasma irradiation process. / Son, Guntae; Kim, Do hyung; Lee, Jung Seok; Kim, Hyoung il; Lee, Changha; Kim, Sang Ryoung; Lee, Hongshin.

In: Journal of Environmental Management, Vol. 206, 15.01.2018, p. 77-84.

Research output: Contribution to journalArticle

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T1 - Synchronized methylene blue removal using Fenton-like reaction induced by phosphorous oxoanion and submerged plasma irradiation process

AU - Son, Guntae

AU - Kim, Do hyung

AU - Lee, Jung Seok

AU - Kim, Hyoung il

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AU - Kim, Sang Ryoung

AU - Lee, Hongshin

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