Peracids - New oxidants in advanced oxidation processes: The use of peracetic acid, peroxymonosulfate, and persulfate salts in the removal of organic micropollutants of emerging concern − A review

Kiejza, Dariusz; Kotowska, Urszula; Polińska, Weronika; Karpińska, Joanna

doi:10.1016/j.scitotenv.2021.148195

Cited by 155 publications

(40 citation statements)

References 132 publications

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“…, , ˙OH, , and 1 O 2 ) were provided as follows in eqn (1)–(8). 29,30 Typically, the activation of PS could be completed through the fission of the O-O bond in the presence of Co 3 O 4 @NiO-2, thereby generating . Meanwhile, the as-prepared Co 3 O 4 @NiO-2 could also activate O 2 to generate .…”

Section: Resultsmentioning

confidence: 99%

Insights into the degradation of emerging organic pollutants by peroxydisulfate activated with Co₃O₄@NiO: role of each component and catalytic mechanism

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Insights into the degradation of emerging organic pollutants by peroxydisulfate activated with Co₃O₄@NiO: role of each component and catalytic mechanism

et al. 2022

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“…• OH radicals are formed from the direct reaction of PAA with iron ions and from the Fenton reaction taking place in the system, due to the presence of H 2 O 2 . The much higher reaction rate constant for the formation of radicals from peracetic acid at pH of 3.0–7.1 (0.5–1.10) × 10 5 M −1 ∙s −1 , compared to that of Fe 2+ /H 2 O 2 (k = 63–76 M −1 ∙s −1 ), proves that PAA decomposition is the predominant source of • OH radicals in Fe (II)/PAA systems [ 54 ]. As seen in Figure 1 , the oxidation process of benzotriazoles takes place with a small share of hydroxyl radicals.…”

Section: Resultsmentioning

confidence: 99%

“…This work presents the study on the oxidation process of five benzotriazole UV stabilizers that use peracetic acid activated with d-electron metal ions. Peracetic acid (PAA) is a long-known disinfectant and effective oxidant of organic micropollutants [ 53 , 54 , 55 , 56 ]. In recent studies, UV irradiation [ 57 , 58 , 59 , 60 ], d-electron metal ions [ 61 , 62 , 63 , 64 ], or heterogeneous activators [ 65 , 66 , 67 , 68 , 69 , 70 , 71 ] have been used as PAA activators.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Benzotriazole UV Stabilizers in PAA/d-Electron Metal Ions Systems—Removal Kinetics, Products and Mechanism Evaluation

2022

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Benzotriazole UV stabilizers (BUVs) have gained popularity, due to their absorption properties in the near UV range (200–400 nm). They are used in the technology for manufacturing plastics, protective coatings, and cosmetics, to protect against the destructive influence of UV radiation. These compounds are highly resistant to biological and chemical degradation. As a result of insufficient treatment by sewage treatment plants, they accumulate in the environment and in the tissues of living organisms. BUVs have adverse effects on living organisms. This work presents the use of peracetic acid in combination with d-electron metal ions (Fe2+, Co2+), for the chemical oxidation of five UV filters from the benzotriazole group: 2-(2-hydroxy-5-methylphenyl)benzotriazole (UV-P), 2-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol (UV-326), 2,4-di-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)phenol (UV-327), 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV-328), and 2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol (UV-329). The oxidation procedure has been optimized based on the design of experiments (DoE) methodology. The oxidation of benzotriazoles follows first order kinetics. The oxidation products of each benzotriazole were investigated, and the oxidation mechanisms of the tested compounds were proposed.

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“…Unfortunately, traditional wastewater treatment plants (WWTPs) are not explicitly designed for micropollutant abatement, resulting in WWTPs being one of the significant sources of micropollutants in surface water [4]. Until now, various techniques have been proposed for micropollutant abatement in WWTPs, including activated carbon/biochar adsorption [5], advanced oxidation processes (AOPs) [6,7], and membrane filtration [8]. AOPs have attracted growing…”

Section: Introductionmentioning

confidence: 99%

Direct and Activated Chlorine Dioxide Oxidation for Micropollutant Abatement: A Review on Kinetics, Reactive Sites, and Degradation Pathway

Chen

et al. 2022

Water

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Recently, ClO2-based oxidation has attracted increasing attention to micropollutant abatement, due to high oxidation potential, low disinfection byproduct (DBPs) formation, and easy technical implementation. However, the kinetics, reactive sites, activation methods, and degradation pathways involved are not fully understood. Therefore, we reviewed current literature on ClO2-based oxidation in micropollutant abatement. In direct ClO2 oxidation, the reactions of micropollutants with ClO2 followed second-order reaction kinetics (kapp = 10−3–106 M−1 s−1 at neutral pH). The kapp depends significantly on the molecular structures of the micropollutant and solution pH. The reactive sites of micropollutants start with certain functional groups with the highest electron densities including piperazine, sulfonyl amido, amino, aniline, pyrazolone, phenol groups, urea group, etc. The one-electron transfer was the dominant micropollutant degradation pathway, followed by indirect oxidation by superoxide anion radical (O2•−) or hydroxyl radical (•OH). In UV-activated ClO2 oxidation, the reactions of micropollutants followed the pseudo-first-order reaction kinetics with the rates of 1.3 × 10−4–12.9 s−1 at pH 7.0. Their degradation pathways include direct ClO2 oxidation, direct UV photolysis, ozonation, •OH-involved reaction, and reactive chlorine species (RCS)-involved reaction. Finally, we identified the research gaps and provided recommendations for further research. Therefore, this review gives a critical evaluation of ClO2-based oxidation in micropollutant abatement, and provides recommendations for further research.

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Peracids - New oxidants in advanced oxidation processes: The use of peracetic acid, peroxymonosulfate, and persulfate salts in the removal of organic micropollutants of emerging concern − A review

Cited by 155 publications

References 132 publications

Insights into the degradation of emerging organic pollutants by peroxydisulfate activated with Co₃O₄@NiO: role of each component and catalytic mechanism

Insights into the degradation of emerging organic pollutants by peroxydisulfate activated with Co₃O₄@NiO: role of each component and catalytic mechanism

Degradation of Benzotriazole UV Stabilizers in PAA/d-Electron Metal Ions Systems—Removal Kinetics, Products and Mechanism Evaluation

Direct and Activated Chlorine Dioxide Oxidation for Micropollutant Abatement: A Review on Kinetics, Reactive Sites, and Degradation Pathway

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Peracids - New oxidants in advanced oxidation processes: The use of peracetic acid, peroxymonosulfate, and persulfate salts in the removal of organic micropollutants of emerging concern − A review

Cited by 155 publications

References 132 publications

Insights into the degradation of emerging organic pollutants by peroxydisulfate activated with Co3O4@NiO: role of each component and catalytic mechanism

Insights into the degradation of emerging organic pollutants by peroxydisulfate activated with Co3O4@NiO: role of each component and catalytic mechanism

Degradation of Benzotriazole UV Stabilizers in PAA/d-Electron Metal Ions Systems—Removal Kinetics, Products and Mechanism Evaluation

Direct and Activated Chlorine Dioxide Oxidation for Micropollutant Abatement: A Review on Kinetics, Reactive Sites, and Degradation Pathway

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Insights into the degradation of emerging organic pollutants by peroxydisulfate activated with Co₃O₄@NiO: role of each component and catalytic mechanism

Insights into the degradation of emerging organic pollutants by peroxydisulfate activated with Co₃O₄@NiO: role of each component and catalytic mechanism