Degradation of dye in wastewater by Homogeneous Fe(VI)/NaHSO3 system

Mengying Sun, Wenyan Huang, Hao Cheng, Jianfeng Ma, Yong Kong, Sridhar Komarneni

Research output: Contribution to journalArticle

Abstract

The homogeneous Fe(VI)/Na2SO3 system has been proposed for highly efficient degradation of recalcitrant contaminants, in which sulfite could significantly enhance the transformation of organic substrate by Fe(VI). Also, the Fe(VI)/NaHSO3 system could show high efficiency across a wide range of pH conditions. The degradation rates reached up to 80% within 2 min and 70% within 5 min in strongly acidic and alkaline conditions, respectively. Unexpectedly, a faster removal rate was obtained in Fe(VI)/NaHSO3 system than that in Fe(VI)/Na2SO3 system for the degradation of methylene blue (MB). A reasonable dye degradation mechanism was proposed and verified by a series of experiments. The high oxidation potential of Fe(VI)and other species such as sulfate and hydroxyl radicals were responsible for the outstanding capabilities of Fe(VI)/NaHSO3 system, which could significantly improve the treatment of organics in wastewater under a very wide range of pH conditions.

Original languageEnglish (US)
Pages (from-to)595-601
Number of pages7
JournalChemosphere
Volume228
DOIs
StatePublished - Aug 2019

Fingerprint

Waste Water
dye
Wastewater
Coloring Agents
Dyes
wastewater
Degradation
Sulfites
degradation
Methylene Blue
Hydroxyl Radical
sulfite
hydroxyl radical
Impurities
sulfate
oxidation
substrate
Oxidation
pollutant
Substrates

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Chemistry(all)
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Sun, Mengying ; Huang, Wenyan ; Cheng, Hao ; Ma, Jianfeng ; Kong, Yong ; Komarneni, Sridhar. / Degradation of dye in wastewater by Homogeneous Fe(VI)/NaHSO3 system. In: Chemosphere. 2019 ; Vol. 228. pp. 595-601.
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abstract = "The homogeneous Fe(VI)/Na2SO3 system has been proposed for highly efficient degradation of recalcitrant contaminants, in which sulfite could significantly enhance the transformation of organic substrate by Fe(VI). Also, the Fe(VI)/NaHSO3 system could show high efficiency across a wide range of pH conditions. The degradation rates reached up to 80{\%} within 2 min and 70{\%} within 5 min in strongly acidic and alkaline conditions, respectively. Unexpectedly, a faster removal rate was obtained in Fe(VI)/NaHSO3 system than that in Fe(VI)/Na2SO3 system for the degradation of methylene blue (MB). A reasonable dye degradation mechanism was proposed and verified by a series of experiments. The high oxidation potential of Fe(VI)and other species such as sulfate and hydroxyl radicals were responsible for the outstanding capabilities of Fe(VI)/NaHSO3 system, which could significantly improve the treatment of organics in wastewater under a very wide range of pH conditions.",
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Degradation of dye in wastewater by Homogeneous Fe(VI)/NaHSO3 system. / Sun, Mengying; Huang, Wenyan; Cheng, Hao; Ma, Jianfeng; Kong, Yong; Komarneni, Sridhar.

In: Chemosphere, Vol. 228, 08.2019, p. 595-601.

Research output: Contribution to journalArticle

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T1 - Degradation of dye in wastewater by Homogeneous Fe(VI)/NaHSO3 system

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AU - Cheng, Hao

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