Catalytic ozonation of model organic compounds in aqueous solution promoted by metallic oxides

Mansouri, Lobna; Sabelfeld, Marina; Geißen, Sven‐Uwe; Bousselmi, Latifa

doi:10.1080/19443994.2013.860630

Cited by 7 publications

(6 citation statements)

References 30 publications

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“…activated carbon and metallic oxides) was also effective to remove DEP in about 0.5 h [22,[31][32][33].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…AOPs rely on the in-situ generation of potent oxidising chemical entities, primarily hydroxyl radicals (•OH), and are achieved using a range of combinations of oxidants and catalysts. Ozone-, UVand H2O2-based AOPs are common as they have proven to be effective in oxidising and mineralising a wide range of wastewater pollutants [21][22][23][24][25]. AOPs can be combined with biological processes as a pre-treatment step so to render the wastewater biodegradable or as a tertiary treatment to oxidise refractory organic pollutants [20,26].…”

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confidence: 99%

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A comparative study on ozone, hydrogen peroxide and UV based advanced oxidation processes for efficient removal of diethyl phthalate in water

Mansouri

Tizaoui

Geißen

et al. 2019

Journal of Hazardous Materials

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Several Advanced Oxidation Processes (AOPs) including O3/H2O2, O3/TiO2, O3/activated carbon (AC), O3/Al2O3, O3/Fe 2+ /H2O2 and UV/TiO2 have been investigated and compared for the removal of diethyl phthalate (DEP), an endocrine disrupting compound, in aqueous solutions. Hydroxyl radicals were the main species responsible for DEP degradation and this was supported by computational chemistry calculation, scavenger experiments, and LC/MS/MS analysis. The change of the abundance of reaction products over time was determined. Organic acids as well as anhydride and hydroxylated products were found to accumulate in solution even after long reaction time (2h). Careful choice of the operating parameters (pH, ozone concentration and catalyst dosage) was crucial to achieve enhanced performance of the combined processes above what each oxidant and catalyst can achieve alone. O3/AC process was found to reduce the oxidation efficiency of O3 at high ozone concentrations. Heterogeneous catalytic ozonation with Al2O3 was the most effective process for DEP removal (~100% removal in about 15 min) and based on pseudo-first-order kinetics at pH7, the studied oxidation processes followed the order: O3/Al2O3(0.093min-1)>O3/H2O2/Fe 2+ (0.076min-1)>O3/AC(0.069min-1)>O3/H2O2(0.053min-1)>O3/TiO2(0.050min-1)> O3 alone (0.039min-1)>UV/TiO2(0.009min-1).

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“…activated carbon and metallic oxides) was also effective to remove DEP in about 0.5 h [22,[31][32][33].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

mentioning

confidence: 99%

A comparative study on ozone, hydrogen peroxide and UV based advanced oxidation processes for efficient removal of diethyl phthalate in water

Mansouri

Tizaoui

Geißen

et al. 2019

Journal of Hazardous Materials

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“…The problems of this technology include low oxygen oxidation efficiency and low utilization rate. Ozone catalyst can improve the mass transfer efficiency and utilization of ozone and shorten the reaction time (Zhang et al, 2021;Mansouri et al, 2013). Under optimum conditions, the chemical oxygen demand (COD) removal efficiency can reach 96.3% in the catalytic ozonation of oil refining wastewater with aluminasupported manganese and copper oxides (Deng et al, 2015;He et al, 2021;Jiang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Preparation of Mn/Mg/Ce Ternary Ozone Catalyst and Its Mechanism for the Degradation of Printing and Dyeing Wastewater

Shuai

Ren

et al. 2022

Front. Energy Res.

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The printing and dyeing wastewater produced by different dyes, as well as different printing and dyeing processes, have different components. These wastewater have high toxicity, high organic concentration, and deep chromaticity. Ozone catalytic oxidation is a very promising technical method for wastewater treatment. In this paper, Mn/Mg/Ce ternary catalyst was prepared, and the ozone catalytic oxidation treatment of actual and simulated printing and dyeing wastewater was performed to study the performance of four different carrier catalysts, namely, molecular sieve (MS), silica gel (SG), attapulgite (ATP), and nano alumina (Al2O3), by simulated dynamic test. The effects of reaction time, pH, and catalyst dosage on methyl orange degradation were studied. The results showed that under the optimum treatment conditions (120 min, pH 11, and 12.5 g/L catalyst dosage), the degradation rate of methyl orange reached 96% and the removal rate of the chemical oxygen demand of printing and dyeing wastewater reached 48.7%. This study shows that the treatment effect of ozone catalytic oxidation on printing and dyeing wastewater is remarkably improved after catalyst addition. This study provides a new choice of ozone catalyst for the degradation of printing and dyeing wastewaters in the future.

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“…In that context, the development of fast and efficient treatment processes for the remediation of these harmful endocrine disrupting compounds is highly required. Various approaches have been used to improve the removal of phthalates during water treatment, including biotransformation [10,11], adsorption [12][13][14], and advanced oxidation processes [15][16][17]. Although the biodegradation of phthalates by activated sludges has been demonstrated, under either aerobic or anaerobic conditions [18,19], this approach still suffers from long reaction times to transform these pollutants into harmless compounds, as well as incomplete degradation.…”

Section: Introductionmentioning

confidence: 99%

Remediation of Diethyl Phthalate in Aqueous Effluents with TiO2-Supported Rh0 Nanoparticles as Multicatalytic Materials

et al. 2021

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An innovative “domino” process, based on an arene hydrogenation followed by a photocatalytic step, was designed for the remediation of endocrine disrupting compounds, in highly concentrated aqueous effluents. The novelty relies on the use of TiO2-supported zerovalent Rh nanoparticles as multicatalytic materials (MCMs) for this two-step treatment, applied on diethyl phthalate, which is a model aromatic pollutant frequently present in aquatic environments. This nanocomposite advanced material, which was easily prepared by a green, wet impregnation methodology, proved to be active in the successive reactions, the reduction in the aromatic ring, and the photodegradation step. This sustainable approach offers promising alternatives in the case of photoresistive compounds.

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Catalytic ozonation of model organic compounds in aqueous solution promoted by metallic oxides

Cited by 7 publications

References 30 publications

A comparative study on ozone, hydrogen peroxide and UV based advanced oxidation processes for efficient removal of diethyl phthalate in water

A comparative study on ozone, hydrogen peroxide and UV based advanced oxidation processes for efficient removal of diethyl phthalate in water

Preparation of Mn/Mg/Ce Ternary Ozone Catalyst and Its Mechanism for the Degradation of Printing and Dyeing Wastewater

Remediation of Diethyl Phthalate in Aqueous Effluents with TiO2-Supported Rh0 Nanoparticles as Multicatalytic Materials

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