Ferrate(VI) oxidation of tetrabromobisphenol A in comparison with bisphenol A

Yang, Bin; Ying, Guang‐Guo; Chen, Zhifeng; Zhao, Jian‐Liang; Peng, Fu-Qiang; Chen, Xiaowen

doi:10.1016/j.watres.2014.05.056

Cited by 83 publications

(51 citation statements)

References 35 publications

(60 reference statements)

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“…Some phenolic substances are between 6.6 and 3.6 × 10 3 M − 1 s − 1 , which fully shows the capacity of Fe(VI) oxidation of phenolic endocrine disruptors. Yang et al (2014) studied the reaction kinetics, mechanism and toxicity evaluation, and assessed the potential of Fe (VI) to degrade tetrabromobisphenol A (TBA). The results show that the second order reaction rate constant among Fe(VI) and tetrabromobisphenol A is 7.9 (±0.3) × 10 3 to 3.3 × 10 1 M − 1 s − 1 , with half-life of 1.7 s-419.3 s in the range of pH 7.0-10.0.…”

Section: Reaction Mechanism Of Fe(vi)mentioning

confidence: 99%

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Sustainable ferrate oxidation: Reaction chemistry, mechanisms and removal of pollutants in wastewater

Dar

Pan

Qin

et al. 2021

Environmental Pollution

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Section: Reaction Mechanism Of Fe(vi)mentioning

confidence: 99%

“…Compared with BPA, Fe(VI) is easier to oxidize TBBPA. Fe(VI) can abolish, and convert TBBPA molecules by β-fracture reaction, and produce low brominated products (Yang et al, 2014).…”

Section: Reaction Mechanism Of Fe(vi)mentioning

confidence: 99%

Sustainable ferrate oxidation: Reaction chemistry, mechanisms and removal of pollutants in wastewater

Dar

Pan

Qin

et al. 2021

Environmental Pollution

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“…BS consists of phenol groups where both aromatic rings and hydroxylates are activated electron-rich moieties (ERMs) 18,31 . Therefore, ferrate and ozone can actively reacted with the abundant ERMs in the BS structures and thus a high BS degradation efficiency; greater than 99% ( Table 2).…”

Section: Discussionmentioning

confidence: 99%

Preliminarily comparative performance of removing bisphenol-S by ferrate oxidation and ozonation

2021

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Bisphenol-S (BS) has recently raised public concerns for its adverse effect on the health safety and ecological security. BS concentrations were detected in many water resources, ranging from 10 ng L−1 to 300 μg L−1, so that various purification techniques have been sought to remove BS. This study investigated the performance of ozonation and ferrate oxidation in the degradation of BS since they are both promising oxidants with high redox potential among water treatment chemicals. It was observed that both ozone and ferrate can achieve over 99% of BS concentration reduction and up to 22.5% of DOC reduction for dosing 0.036 mM of either ferrate or ozone. The vibrio fisheri toxicity exhibited a decline in the treated samples after ozonation or ferrate oxidation. According to the mass spectra analyzed, the degradation pathways were proposed and oxidation products (OPs) were identified. BS degradation by ozonation and ferrate oxidation followed a similar route and four common OPs (OP-249; OP-497-a; OP-497-b, and OP-201) were detected. While ferrate treatment produced one more intermediate (OP-217), ozonation did not, which is attributed to the intensified decomposition of BS by ozonation. The major impact of this study is that ferrate treatment is comparable to the ozonation in removing BS, and further research continuing from this study is necessary to explore the BS removal in various waters with more complex matrixes (e.g., high natural organic matter contents), to investigate BS degradation mechanisms in depth, and to conduct pilot-scale and full-scale trials to establish operational database in running ferrate oxidation and/or ozonation for the treatment of BS in practical world.

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“…Moreover, many researchers have reported the application of ferrate to remove EMPs, including persisted pharmaceuticals, EDCs, and PPCPs in drinking water and wastewater effluents 14,15,24 . Studies revealed that 80% of ciprofloxacin was removed by 5 mg Fe(VI) L −1 , 15 90% of tetrabromobisphenol A and bisphenol‐A were removed by 2 mg Fe(VI) L −1 , 25 and 78–95% of algae blossom toxins were removed by 3 mg Fe(VI) L ‐1 26 . Moreover, 80% of three a‐emitting radionuclides ( 238 + 233 U, 239 Pu, and 243 Am) and 70% of two b‐emitting radionuclides ( 90 Sr and 152 EU) were removed from fresh water and sea water at bench scale at 5.6 mg Fe(VI) L −1 27 .…”

Section: Introductionmentioning

confidence: 99%

Comparative removal of imidacloprid, bisphenol‐S, and azithromycin with ferrate and FeCl₃ and assessment of the resulting toxicity

Zhang

Jiang

2020

J of Chemical Tech & Biotech

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BACKGROUND: Emerging micro-pollutants (EMPs) in water have received much attention due to their potential hazards to human health and ecological security. Ferrate has been researched in recent years to remove both particulate and dissolved impurities (including EMPs) from water, and its promising performance has been attributed to the high oxidation capacity and coagulation functions. However, limited research has compared ferrate with coagulation alone in the treatment of EMPs, which is one of the major objectives of this study. RESULTS: Three emerging micro-pollutants (EMPs), imidacloprid (IMP), bisphenol-S (BS), and azithromycin (AZM) were chosen for this study. In all cases, ferrate outperformed to ferric chloride in the removal of the EMPs. For a given ferrate dose of 0.05 mM, 99% of BS, 85% of AZM, and 78% of IMP were removed for a start concentration of 10 ∼g L −1. However, if the start concentration was 1000 ∼g L −1 , removal efficiency was decreased to 82% for BS, 62% for AZM, and 22% for IMP. pH 5 was favorable to the EMP removal by ferrate for the study conditions. Although higher removals of IMP, BS, and AZM were achieved by ferrate in comparison to those by ferric chloride, only 20% DOC removal was achieved by the ferrate. The formation of various oxidation products in the degradation process resulted in the disparity of the solution toxicity; that of BS was reduced but those of IMP and AZM increased after ferrate treatment. Nevertheless, the toxicity of ferric chloride treated samples was all increased. CONCLUSION: Ferrate has higher efficiency comparing with FeCl 3 to remove IMP, BS, and AZM. Degradation of the EMPs by ferrate was more efficient in acidic conditions (pH 5) and at the EMPs' lower initial concentrations for the given conditions. IMP was more resistant to the ferrate treatment compared to BS and AZM under the same conditions. Overall, 20% DOC reduction was achieved by ferrate for pH 5. Finally, the toxicity of BS can be reduced but those of IMP and AZM were increased after ferrate treatment, whilst the toxicity of ferric chloride treated samples was all increased.

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Ferrate(VI) oxidation of tetrabromobisphenol A in comparison with bisphenol A

Cited by 83 publications

References 35 publications

Sustainable ferrate oxidation: Reaction chemistry, mechanisms and removal of pollutants in wastewater

Sustainable ferrate oxidation: Reaction chemistry, mechanisms and removal of pollutants in wastewater

Preliminarily comparative performance of removing bisphenol-S by ferrate oxidation and ozonation

Comparative removal of imidacloprid, bisphenol‐S, and azithromycin with ferrate and FeCl₃ and assessment of the resulting toxicity

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Ferrate(VI) oxidation of tetrabromobisphenol A in comparison with bisphenol A

Cited by 83 publications

References 35 publications

Sustainable ferrate oxidation: Reaction chemistry, mechanisms and removal of pollutants in wastewater

Sustainable ferrate oxidation: Reaction chemistry, mechanisms and removal of pollutants in wastewater

Preliminarily comparative performance of removing bisphenol-S by ferrate oxidation and ozonation

Comparative removal of imidacloprid, bisphenol‐S, and azithromycin with ferrate and FeCl3 and assessment of the resulting toxicity

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Product

Resources

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Comparative removal of imidacloprid, bisphenol‐S, and azithromycin with ferrate and FeCl₃ and assessment of the resulting toxicity