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Rapid acceleration of ferrous iron/peroxymonosulfate oxidation of organic pollutants by promoting Fe(III)/Fe(II) cycle with hydroxylamine.
Environ Sci Technol. 2013 Oct 15; 47(20):11685-91.ES

Abstract

The reaction between ferrous iron (Fe(II)) with peroxymonosulfate (PMS) generates reactive oxidants capable of degrading refractory organic contaminants. However, the slow transformation from ferric iron (Fe(III)) back to Fe(II) limits its widespread application. Here, we added hydroxylamine (HA), a common reducing agent, into Fe(II)/PMS process to accelerate the transformation from Fe(III) to Fe(II). With benzoic acid (BA) as probe compound, the addition of HA into Fe(II)/PMS process accelerated the degradation of BA rapidly in the pH range of 2.0-6.0 by accelerating the key reactions, including the redox cycle of Fe(III)/Fe(II) and the generation of reactive oxidants. Both sulfate radicals and hydroxyl radicals were considered as the primary reactive oxidants for the degradation of BA in HA/Fe(II)/PMS process with the experiments of electron spin resonance and alcohols quenching. Moreover, HA was gradually degraded to N2, N2O, NO2 (−), and NO3 (−), while the environmentally friendly gas of N2 was considered as its major end product in the process. The present study might provide a promising idea based on Fe(II)/PMS process for the rapid degradation of refractory organic contaminants in water treatment.

Authors+Show Affiliations

State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology , Harbin 150090, P.R. China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24033112

Citation

Zou, Jing, et al. "Rapid Acceleration of Ferrous Iron/peroxymonosulfate Oxidation of Organic Pollutants By Promoting Fe(III)/Fe(II) Cycle With Hydroxylamine." Environmental Science & Technology, vol. 47, no. 20, 2013, pp. 11685-91.
Zou J, Ma J, Chen L, et al. Rapid acceleration of ferrous iron/peroxymonosulfate oxidation of organic pollutants by promoting Fe(III)/Fe(II) cycle with hydroxylamine. Environ Sci Technol. 2013;47(20):11685-91.
Zou, J., Ma, J., Chen, L., Li, X., Guan, Y., Xie, P., & Pan, C. (2013). Rapid acceleration of ferrous iron/peroxymonosulfate oxidation of organic pollutants by promoting Fe(III)/Fe(II) cycle with hydroxylamine. Environmental Science & Technology, 47(20), 11685-91. https://doi.org/10.1021/es4019145
Zou J, et al. Rapid Acceleration of Ferrous Iron/peroxymonosulfate Oxidation of Organic Pollutants By Promoting Fe(III)/Fe(II) Cycle With Hydroxylamine. Environ Sci Technol. 2013 Oct 15;47(20):11685-91. PubMed PMID: 24033112.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rapid acceleration of ferrous iron/peroxymonosulfate oxidation of organic pollutants by promoting Fe(III)/Fe(II) cycle with hydroxylamine. AU - Zou,Jing, AU - Ma,Jun, AU - Chen,Liwei, AU - Li,Xuchun, AU - Guan,Yinghong, AU - Xie,Pengchao, AU - Pan,Chao, Y1 - 2013/10/07/ PY - 2013/9/17/entrez PY - 2013/9/17/pubmed PY - 2014/5/20/medline SP - 11685 EP - 91 JF - Environmental science & technology JO - Environ Sci Technol VL - 47 IS - 20 N2 - The reaction between ferrous iron (Fe(II)) with peroxymonosulfate (PMS) generates reactive oxidants capable of degrading refractory organic contaminants. However, the slow transformation from ferric iron (Fe(III)) back to Fe(II) limits its widespread application. Here, we added hydroxylamine (HA), a common reducing agent, into Fe(II)/PMS process to accelerate the transformation from Fe(III) to Fe(II). With benzoic acid (BA) as probe compound, the addition of HA into Fe(II)/PMS process accelerated the degradation of BA rapidly in the pH range of 2.0-6.0 by accelerating the key reactions, including the redox cycle of Fe(III)/Fe(II) and the generation of reactive oxidants. Both sulfate radicals and hydroxyl radicals were considered as the primary reactive oxidants for the degradation of BA in HA/Fe(II)/PMS process with the experiments of electron spin resonance and alcohols quenching. Moreover, HA was gradually degraded to N2, N2O, NO2 (−), and NO3 (−), while the environmentally friendly gas of N2 was considered as its major end product in the process. The present study might provide a promising idea based on Fe(II)/PMS process for the rapid degradation of refractory organic contaminants in water treatment. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/24033112/Rapid_acceleration_of_ferrous_iron/peroxymonosulfate_oxidation_of_organic_pollutants_by_promoting_Fe_III_/Fe_II__cycle_with_hydroxylamine_ L2 - https://doi.org/10.1021/es4019145 DB - PRIME DP - Unbound Medicine ER -