Ozonation of aqueous solution containing bisphenol A: Effect of operational parameters

Garoma, Temesgen; Matsumoto, S. A.

doi:10.1016/j.jhazmat.2009.01.133

Cited by 86 publications

(27 citation statements)

References 34 publications

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“…At this stage, the concentration of contaminants controlled the reaction and any further increase in the ozone concentration would have little impact on the degradation. Hence, blindly increasing the degradation efficiency by increasing the ozone dose is unmeaning and uneconomical (Garoma and Matsumoto, 2009). The ozone dose should consider the technological conditions, the use ratio of ozone, and the overall process.…”

Section: Effect Of Ozone Concentrationmentioning

confidence: 99%

Degradation of Thiamethoxam in aqueous solution by ozonation: Influencing factors, intermediates, degradation mechanism and toxicity assessment

Zhao

Zuo

et al. 2016

Chemosphere

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Section: Effect Of Ozone Concentrationmentioning

confidence: 99%

Degradation of Thiamethoxam in aqueous solution by ozonation: Influencing factors, intermediates, degradation mechanism and toxicity assessment

Zhao

Zuo

et al. 2016

Chemosphere

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“…The two treatments have been extensively studied as independent methods for the removal of endocrine disruptors. Ozonation generally produces a fast degradation of bisphenol A (BPA), but a significant mineralization of the pollutant rarely occurs because of the formation of more toxic stable by-products (Garoma and Matsumoto 2009). With respect to other treatments, the photocatalysis with TiO 2 presents the advantage of achieving the complete BPA mineralization, even if the degradation usually proceeds over long or very long reaction times (Wang et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Bisphenol A endocrine disruptor complete degradation using TiO2 photocatalysis with ozone

et al. 2011

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Bisphenol A is an endocrine disruptor. Complete mineralization of bisphenol A is therefore a primary environmental issue. Here, the combination of ozonation and photocatalysis by TiO 2 is proposed for the degradation and final mineralization of bisphenol A. TiO 2 films deposited onto two sides of an Al lamina show good stability and high surface roughness. We used a specific experimental setup employing two facing ultraviolet lamps and TiO 2 layers, together with an ozone flux. High-performance liquid chromatography-mass spectrometry determinations on bisphenol A solutions sampled at different reaction times and Fourier Transform Infrared analyses of the oxide at the end of the reaction were performed to study the reaction intermediates and the overall degradation mechanism. Our results show that pollutant mineralization achieved with the combined method is far higher, of 55% in the case of 0.3 mM bisphenol A, than those obtained by individual treatments such as photolysis (\3%), ozonation (6%), photocatalysis (6%), and by other combined processes: photolytic ozonation (13%) and catalytic ozonation (15%). This finding is explained by the occurrence of highly synergistic effects.

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“…At pH 10, the BP3 decomposition rate is more than twofold higher than at acid pH, showing the importance of the formed hydroxyl radicals. The reactivity of BP3 with HO • is significantly higher than with ozone in aqueous phase, as is the case with most organic pollutants [77]. Furthermore, since BP3 has a pK a of 8.06, it is mainly dissociated at higher pH, which might result into an enhancement of the reaction rate since ozone is an electrophilic reagent.…”

Section: Ph Effect On Bp3 Degradationmentioning

confidence: 98%

Ozonation as an Advanced Treatment Technique for the Degradation of Personal Care Products in Water

Demeestere

Gago-Ferrero

Langenhove

et al. 2014

The Handbook of Environmental Chemistry

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Water is the most essential element to life on Earth. However, the availability and quality of the global water resources are at risk because many stressors of human origin are putting pressure on it. The contamination of water bodies (lakes, rivers, aquifers and oceans) occurs when man-made chemicals are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds, affecting organisms living in these aquatic ecosystems. As new compounds are produced and ultimately detected in the environment, improved water treatment techniques have to be available for their elimination. For the degradation of a wide range of emerging organic micropollutants, last year's

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Ozonation of aqueous solution containing bisphenol A: Effect of operational parameters

Cited by 86 publications

References 34 publications

Degradation of Thiamethoxam in aqueous solution by ozonation: Influencing factors, intermediates, degradation mechanism and toxicity assessment

Degradation of Thiamethoxam in aqueous solution by ozonation: Influencing factors, intermediates, degradation mechanism and toxicity assessment

Bisphenol A endocrine disruptor complete degradation using TiO2 photocatalysis with ozone

Ozonation as an Advanced Treatment Technique for the Degradation of Personal Care Products in Water

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