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Catalytic degradation of organic pollutants in Fe(III)/peroxymonosulfate (PMS) system: performance, influencing factors, and pathway.
Environ Sci Pollut Res Int. 2019 Dec; 26(36):36410-36422.ES

Abstract

This study demonstrated, for the first time, Fe(III)/peroximonosulphate (PMS) could be an efficient advanced oxidation process (AOP) for wastewater treatment. Bisphenol A (BPA) was chosen as a model pollutant in the present study. Fe(III)-activated PMS system proved very effective to eliminate 92.18% of BPA (20 mg/L) for 30-min reaction time at 0.50 mM PMS, 1.5 g/L Fe(III), pH 7.0. The maximum degradation of BPA occurred at neutral pH, while it was suppressed at both strongly acidic and alkaline conditions. Organic and inorganic ions can interfere with system efficiency either positively or negatively, so their interaction was thoroughly investigated. Furthermore, the presence of organic acids also affected BPA degradation rate, especially the addition of 10 mM citric acid decreased the degradation rate from 92.18 to 66.08%. Radical scavenging experiments showed that SO4•- was the dominant reactive species in Fe(III)/PMS system. A total of 5 BPA intermediates were found by using LC/MS. A possible degradation pathway was proposed which underwent through bridge cleavage and hydroxylation processes. Acute toxicity of the BPA degradation products was assessed using Escherichia coli growth inhibition test. These findings proved to be promising and economical to deal with wastewater using iron mineral for the elimination of organic pollutants. Graphical abstract.

Authors+Show Affiliations

Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China.Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China.Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, 230036, China. youbinsi@ahau.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31728944

Citation

Latif, Abdul, et al. "Catalytic Degradation of Organic Pollutants in Fe(III)/peroxymonosulfate (PMS) System: Performance, Influencing Factors, and Pathway." Environmental Science and Pollution Research International, vol. 26, no. 36, 2019, pp. 36410-36422.
Latif A, Kai S, Si Y. Catalytic degradation of organic pollutants in Fe(III)/peroxymonosulfate (PMS) system: performance, influencing factors, and pathway. Environ Sci Pollut Res Int. 2019;26(36):36410-36422.
Latif, A., Kai, S., & Si, Y. (2019). Catalytic degradation of organic pollutants in Fe(III)/peroxymonosulfate (PMS) system: performance, influencing factors, and pathway. Environmental Science and Pollution Research International, 26(36), 36410-36422. https://doi.org/10.1007/s11356-019-06657-y
Latif A, Kai S, Si Y. Catalytic Degradation of Organic Pollutants in Fe(III)/peroxymonosulfate (PMS) System: Performance, Influencing Factors, and Pathway. Environ Sci Pollut Res Int. 2019;26(36):36410-36422. PubMed PMID: 31728944.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Catalytic degradation of organic pollutants in Fe(III)/peroxymonosulfate (PMS) system: performance, influencing factors, and pathway. AU - Latif,Abdul, AU - Kai,Sun, AU - Si,Youbin, Y1 - 2019/11/14/ PY - 2019/06/19/received PY - 2019/09/30/accepted PY - 2019/11/16/pubmed PY - 2020/2/29/medline PY - 2019/11/16/entrez KW - Advanced oxidation process (AOP) KW - BPA degradation KW - Fe(III)/PMS system KW - Influencing factors KW - Reaction pathway SP - 36410 EP - 36422 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 26 IS - 36 N2 - This study demonstrated, for the first time, Fe(III)/peroximonosulphate (PMS) could be an efficient advanced oxidation process (AOP) for wastewater treatment. Bisphenol A (BPA) was chosen as a model pollutant in the present study. Fe(III)-activated PMS system proved very effective to eliminate 92.18% of BPA (20 mg/L) for 30-min reaction time at 0.50 mM PMS, 1.5 g/L Fe(III), pH 7.0. The maximum degradation of BPA occurred at neutral pH, while it was suppressed at both strongly acidic and alkaline conditions. Organic and inorganic ions can interfere with system efficiency either positively or negatively, so their interaction was thoroughly investigated. Furthermore, the presence of organic acids also affected BPA degradation rate, especially the addition of 10 mM citric acid decreased the degradation rate from 92.18 to 66.08%. Radical scavenging experiments showed that SO4•- was the dominant reactive species in Fe(III)/PMS system. A total of 5 BPA intermediates were found by using LC/MS. A possible degradation pathway was proposed which underwent through bridge cleavage and hydroxylation processes. Acute toxicity of the BPA degradation products was assessed using Escherichia coli growth inhibition test. These findings proved to be promising and economical to deal with wastewater using iron mineral for the elimination of organic pollutants. Graphical abstract. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/31728944/Catalytic_degradation_of_organic_pollutants_in_Fe_III_/peroxymonosulfate__PMS__system:_performance_influencing_factors_and_pathway_ L2 - https://dx.doi.org/10.1007/s11356-019-06657-y DB - PRIME DP - Unbound Medicine ER -