Reaction kinetics and degradation efficiency of halogenated methylparabens during ozonation and UV/H2O2 treatment of drinking water and wastewater effluent

Lee, Woorim; Marcotullio, Sandro; Yeom, Hoon-Sik; Son, Hee-Jong; Lee, Yunho

doi:10.1016/j.jhazmat.2021.127878

Cited by 22 publications

(5 citation statements)

References 64 publications

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“…The abatement of the competitors was generally consistent with their reactivity: a higher k app,O3 led to a higher abatement for a specific ozone dose. However, a few exceptions were observed: dibromomethylparaben (DMP, k app,O3 = 8.4 × 10 7 M –1 s –1 ) should be more reactive than triclosan (TRI) and vancomycin (VM, not shown in Table ) (3.8 × 10 7 and 1.2 × 10 6 M –1 s –1 , respectively). ,, However, Figure a shows that DMP (open diamonds) required higher or similar O 3 doses than TRI (reverse blue triangles) or VM (reverse red triangles) for an equivalent abatement. Likewise, carbofuran (CBF, blue circles) required higher O 3 doses than benzafibrate (BZF, red circles) to reach an equivalent abatement, while their reported k app,O3 values are comparable (6.2 × 10 2 and 5.9 × 10 2 M –1 s –1 , respectively). , …”

Section: Resultsmentioning

confidence: 99%

“…Conversely, the k measured values of TMP, CBZ, TYL, SMX, and TRI determined with DMP as competitor were 10 to 25-fold higher than the reported values (open diamonds, Figure a). k O3,DMP of the deprotonated DMP (8.4 × 10 7 M –1 s –1 ) has previously been determined by competition kinetics with indigotrisulfonate as competitor at pH ≥ 7 . The k O3 of indigotrisulfonate has been determined with 1,3,5-trimethoxybenzene as competitor and the k O3 of the latter with buten-3-ol as competitor .…”

Section: Resultsmentioning

confidence: 99%

“…k O3,DMP of the deprotonated DMP (8.4 × 10 7 M −1 s −1 ) has previously been determined by competition kinetics with indigotrisulfonate as competitor at pH ≥ 7. 30 The k O3 of indigotrisulfonate has been determined with 1,3,5-trimethoxybenzene as competitor and the k O3 of the latter with buten-3ol as competitor. 36 This cascade for determinations of second- The k app,O3 values were determined by competition kinetics with the indicated competitors.…”

Section: Vancomycin (Vm)mentioning

confidence: 99%

See 2 more Smart Citations

Reactivity of Cyanobacteria Metabolites with Ozone: Multicompound Competition Kinetics

Rougé,

von Gunten,

Janssen

2024

Environ. Sci. Technol.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Vancomycin (Vm)mentioning

confidence: 99%

See 1 more Smart Citation

Reactivity of Cyanobacteria Metabolites with Ozone: Multicompound Competition Kinetics

Rougé,

von Gunten,

Janssen

2024

Environ. Sci. Technol.

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“…Solar photo-electro-Fenton, another variation of this AOP, has also been found to possess high efficiencies towards parabens abatement, with a complete removal under 180 min of methyl-, ethyl-and propylparaben (C i = 0.30 mM), even when spiked in real secondary wastewater, as reported by Steter et al [16]. Ozonation, which is already present in some water treatment facilities, was studied by Lee et al [17], and completely removed 50 µg L −1 of methylparaben and its halogenated species present in mixtures in drinking water and wastewater effluents.…”

Section: Introductionmentioning

confidence: 81%

g-C3N4 for Photocatalytic Degradation of Parabens: Precursors Influence, the Radiation Source and Simultaneous Ozonation Evaluation

et al. 2023

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Graphitic carbon nitride (g-C3N4) is a promising catalyst for contaminants of emerging concern removal applications, especially as a visible-light-driven material. In this study, g-C3N4 catalysts were effectively synthesized through a simple thermal polymerization method, using melamine, urea, and thiourea as precursors to elucidate the influence of these compounds on the final product’s photocatalytic performance. The degradation of a mixture of three parabens was investigated under different types of radiation: two artificial, ultraviolet-A (UVA) and visible LED, and natural sunlight. The urea-based catalyst (UCN) presented better results under all radiation sources, followed by thiourea, and finally, melamine. Among the artificial light sources, the degradation of parabens under UVA was considerably higher than visible—up to 51% and 21%, respectively—using UCN; however, the broader spectrum of natural sunlight was able to achieve the highest removals, up to 92%, using UCN. Comparing artificial radiation sources, UVA lamps presented 45% lower energy consumption and associated costs. Photocatalytic ozonation was tested using UCN and MCN, with UCN once more possessing superior performance and a synergetic effect between photocatalysis and ozonation, with complete removal under 12 min. The use of g-C3N4 was then successfully tested in initial screening and found to be an efficient alternative in more low-cost and feasible solar photocatalysis water treatment.

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“…Eventually, complete mineralization to CO 2 , H 2 O, and mineral compounds can be obtained. The most extensively studied AOPs are the solar photo-Fenton (UV/Fe 2+ /H 2 O 2 ) process [4][5][6], photocatalysis [7,8], UV/H 2 O 2 [9,10], and others [11].…”

Section: Introductionmentioning

confidence: 99%

Development of Solar Photo-Fenton Process for the Removal of Color, COD, and Turbidity from Institutional Wastewater

Arka¹,

Asaithambi²,

Debela³

2022

JEECE

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In recent years, hard research has been aimed to develop effective technology for the treatment of wastewater and industrial effluent containing organic/inorganic contaminants. Amongst several technologies, the advanced oxidation processes (AOPs) recently have played a major role in the treatment of wastewater. In this study, the treatment of institutional wastewater by solar-photo-Fenton (UV/Fe 2+ /H 2 O 2 ) process based on AOPs was examined in terms of % color, % turbidity, and % COD removal. The solar-UV/Fe 2+ /H 2 O 2 process has revealed a higher removal of color (91%), turbidity (90%), and COD (86%) than the other processes. The effect of various experimental parameters such as hydrogen peroxide (H 2 O 2 ) concentration (0.25 to 1.25 g/L) and Ferrous ion (Fe 2+ ) concentration (0.005 to 0.12 g/L), initial pH (2 to 10), reaction time (30 to 180 min) on the color, turbidity and COD removal has been studied to find out the optimum conditions leading to maximum removal efficiency of the solar UV/Fe 2+ /H 2 O 2 process. The best results of the solar UV/Fe 2+ /H 2 O 2 process of institutional wastewater treatment have been found using 0.75 g/L of H 2 O 2 , 0.045 g/L of Fe 2+ , pH of 4, after 120 min of reaction time. The present study revealed that the solar-UV/Fe 2+ /H 2 O 2 process in an AOPs was well efficient in the institutional wastewater treatment, accomplishing a higher pollutant removal rate. The solar-UV/Fe 2+ /H 2 O 2 process is an effective treatment technique for the removal of pollutants from institutional wastewater.

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Reaction kinetics and degradation efficiency of halogenated methylparabens during ozonation and UV/H2O2 treatment of drinking water and wastewater effluent

Cited by 22 publications

References 64 publications

Reactivity of Cyanobacteria Metabolites with Ozone: Multicompound Competition Kinetics

Reactivity of Cyanobacteria Metabolites with Ozone: Multicompound Competition Kinetics

g-C3N4 for Photocatalytic Degradation of Parabens: Precursors Influence, the Radiation Source and Simultaneous Ozonation Evaluation

Development of Solar Photo-Fenton Process for the Removal of Color, COD, and Turbidity from Institutional Wastewater

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