Degradation of bisphenol A by combining ozone with UV and H2O2 in aqueous solutions: mechanism and optimization

Liu, Ze; Wardenier, Niels; Hosseinzadeh, Seyedahmad; Verheust, Yannick; Buyck, Pieter-Jan De; Chys, Michael; Nikiforov, Anton; Leys, Christophe

doi:10.1007/s10098-018-1595-2

Cited by 21 publications

(13 citation statements)

References 42 publications

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“…Moreover, the use of O 3 by Liu et al (2018) did not improve BPA degradation. However, two points must be highlighted.…”

Section: Comparison With the Literaturementioning

confidence: 84%

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Optimized Degradation of Bisphenol A by UV/H2O2 coupled to Microwaves in a Novel Reactional Setup

Barrenha¹,

Azevedo²

2021

Preprint

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In this paper, the UV/H2O2/MW (microwave) process was compared with the UV/H2O2 one, using bisphenol A (BPA) as a model-pollutant. The proposed experimental setup was operated in batch recycle mode and allows for the direct comparison among different processes: UV only, H2O2 only, MW only, UV/H2O2, UV/MW, H2O2/MW, and UV/H2O2/MW, as well as temperature control to minimize thermal effects. The degradation of BPA at near-environmental concentration (100 µg L−1) was optimized by an experimental design approach (Response Surface Methodology) and its residual concentration was measured by HPLC. Approximately 95% of the initial BPA amount could be removed in 30 min at the optimal conditions (CH2O2 = 20 mg L−1, flow rate = 700 mL min−1, and MW power = 245 W). The experiments designed for comparing the UV/H2O2 and the UV/H2O2/MW processes showed that the use of MW doubled the initial pseudo-first-order degradation rate (from 0.046 to 0.10 min−1) and significantly increased the maximum oxidation capacity of the system (from 86 to 100%). Although the reasons behind those results are still unclear, it seems that the existence of non-thermal effects of the MW irradiation should be considered.

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“…Moreover, the use of O 3 by Liu et al (2018) did not improve BPA degradation. However, two points must be highlighted.…”

Section: Comparison With the Literaturementioning

confidence: 84%

“…First, the results reported by Liu et al (2018) are difficult to be compared with the others due to the pH they used (9.0), which is close to the pKa of BPA (9.6) . Certainly, at that pH, the concentration of the conjugated base of BPA is quite significant.…”

Section: Comparison With the Literaturementioning

confidence: 91%

Optimized Degradation of Bisphenol A by UV/H2O2 coupled to Microwaves in a Novel Reactional Setup

Barrenha¹,

Azevedo²

2021

Preprint

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“…Stock solutions of selected TrOCs, i.e., atrazine (ATZ), alachlor (ALA), bisphenol A (BPA), carbamazepine (CBZ), 17α-ethynylestradiol (EE2), and pentachlorophenol (PCP), were prepared by dissolving TrOCs to 10 mg/L. Freshly prepared ozone stock solution (±70 mg O 3 L –1 ) was used for ozonation, and more details on its preparation are given in Text S1. , …”

Section: Methodsmentioning

confidence: 99%

“…Ozone concentrations were determined by the indigo method according to Bader and Hoigné et al, and the concentration of pCBA was measured by HPLC-DAD (Agilent 1100 series, USA) . Concentrations of TrOCs and t -BuOH in the solutions were measured by gas chromatography-mass spectrometry (GC-MS, an Agilent 6890 GC Series coupled to a Hewlett-Packard 5973 mass-selective detector). , A detailed description on the sampling and analysis methods can be found in Text S2.…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, ozone-resistant TrOCs (e.g., atrazine) are degraded insufficiently during ozonation, which is also a challenge for wide application of ozonation. To overcome these challenges, a large number of AOPs (such as O 3 /H 2 O 2 , − O 3 /UV, − or catalytic ozonation , ) are investigated for enhanced elimination efficiency of ozone-resistant compounds and increased ozone utilization. Ozone combined with filtration is also put forward as a recommended technique.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Ozonation of Trace Organic Contaminants in Municipal Wastewater Plant Effluent by Adding a Preceding Filtration Step: Comparison and Prediction of Removal Efficiency

Liu

Demeestere

Hulle

2019

ACS Sustainable Chem. Eng.

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Ozonation is an efficient method for removing trace organic contaminants (TrOCs) and improving the quality of municipal wastewater plant effluents. Nevertheless, the wide application of ozonation is still challenging because of various wastewater matrices, ozone dose design, and ozone-refractory compounds. An enhanced ozonation supported by adding an additional filtration step was studied to overcome these limitations. A municipal wastewater plant effluent spiked with 6 structurally different TrOCs was employed to investigate the efficiency of TrOCs elimination and water quality improvement when combining ozonation with filtration. A kinetic approach, based on ozone and hydroxyl radicals (•OH) exposure, was used to predict TrOCs abatement and to evaluate ozone dose demand. A significantly more efficient removal of dissolved organic carbon (DOC) was observed when combining ozonation with filtration. Furthermore, the •OH scavenging rate of the effluent matrix was decreased from 6.4 × 10–4 s–1 for conventional ozonation to 1.2 × 10–4 s–1 when combining anion resin filtration (ARF) with ozonation. An improved removal (38% removal at 0.1 g O3/g DOC) of atrazine (which is a typical ozone-refractory compound) was achieved by combining granular activated carbon filtration (GAF) with ozonation compared to stand-alone ozonation (8% removal at 0.5 g O3/g DOC). The measured and predicted elimination demonstrated that the kinetic approach was reliable to predict target contaminants abatement in effluent by use of combined filtration–ozonation systems.

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Removal of bisphenol A from wastewater by physical, chemical and biological remediation techniques. A review

Godiya

Park

2022

Environ Chem Lett

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Degradation of bisphenol A by combining ozone with UV and H2O2 in aqueous solutions: mechanism and optimization

Cited by 21 publications

References 42 publications

Optimized Degradation of Bisphenol A by UV/H2O2 coupled to Microwaves in a Novel Reactional Setup

Optimized Degradation of Bisphenol A by UV/H2O2 coupled to Microwaves in a Novel Reactional Setup

Enhanced Ozonation of Trace Organic Contaminants in Municipal Wastewater Plant Effluent by Adding a Preceding Filtration Step: Comparison and Prediction of Removal Efficiency

Removal of bisphenol A from wastewater by physical, chemical and biological remediation techniques. A review

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