Influence of bicarbonate and carbonate ions on sonochemical degradation of Rhodamine B in aqueous phase

Merouani, Slimane; Hamdaoui, Oualid; Saoudi, Fethi; Chiha, Mahdi; Pétrier, Christian

doi:10.1016/j.jhazmat.2009.10.046

Cited by 185 publications

(78 citation statements)

References 20 publications

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“…These ions attach on the active sites of catalysts and decrease dye degradation efficiency (Arslan-Alaton 2003). In addition, the presence of inorganic anions increases the concentrations of active radicals and their capabilities for the efficient oxidation of organic pollutants existing in wastewater (Merouani et al 2010). The radical anions that are formed through this process also behave as radical scavengers, resulting in prolonged dye degradation.…”

Section: Effects Of Saltsmentioning

confidence: 99%

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Buthiyappan

Raman

Daud

2016

Reviews in Chemical Engineering

242

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AbstractIn the past few years, there have been many researches on the use of different types of homogenous catalyst for the degradation of textile wastewater in conventional advanced oxidation processes (AOPs). However, homogenous AOPs suffer from few limitations, including large consumption of chemicals, acidic pH, high cost of hydrogen peroxide, generation of iron sludge, and necessity of post-treatment. Therefore, recently, there have been more researches that focus on improving the performance of conventional AOPs using heterogeneous catalysts such as titanium dioxide, nanomaterials, metal oxides, zeolite, hematite, goethite, magnetite, and activated carbon (AC). Besides, different supports such as AC that have been incorporated with transition metals and clays have been proven to have excellent catalytic activity in AOPs. This paper presents a comprehensive review of advances and prospects of catalytic AOPs for the decontamination of a wide range of synthetic and real textile wastewater. This review provides an up-to-date critical review of the information on the degradation of various textile dyes by a wide range of heterogeneous catalysts and adsorbents. The future challenges of AOPs, including chemical consumption, toxicity assessment, reactor design, and limitation of catalysts, are discussed in this paper. In addition, this paper also discusses the presence of ions, generation of by-products, and industrial applications of AOPs. Special emphasis is given to recent studies and large-scale combination of AOPs for wastewater treatment. This review paper concludes that more studies are needed for the kinetics, reactor design, and modeling of hybrid AOPs and the production of their corresponding intermediate products and secondary pollutants. A better economic model should also be developed to predict the cost of AOPs, as the treatment cost varies with dyes and textile effluents.

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Section: Effects Of Saltsmentioning

confidence: 99%

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Buthiyappan

Raman

Daud

2016

Reviews in Chemical Engineering

242

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“…• radical in the bulk of the solution. 34 As can be seen from Figure 2, the addition of glucose with high concentration levels has practically no effect on the sonolytic degradation of the dye, signifying that BR29 degradation with HO • radical takes place mainly at the surface of the collapsing bubble, far from the reactivity zone of glucose (the bulk solution). …”

Section: Reactivity Zone and Sono-oxidation Mechanismmentioning

confidence: 92%

Sonochemical degradation of Basic Red 29 in aqueous media

Boutamine¹,

Merouani²,

Hamdaoui³

2017

Turk J Chem

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Abstract:In this work, the degradation of Basic Red 29 (BR29), an azo dye, was investigated using a high-frequency ultrasonic reactor (300 kHz). The influence of several parameters such as initial substrate concentration (5-200 mg L −1 ) , pH (3-10.1), ultrasonic power (20-80 W), and nature of the dissolved gas (Ar, air, and N 2) on the degradation of BR29was assessed. Additionally, the impact of natural matrices (seawater and natural and river waters) on the degradation rate of BR29 was clarified. Degradation experiments with radical scavengers, tert-butyl alcohol and glucose, showed that BR29 degraded mainly through HO• radical attack at the gas/liquid interface of the cavitation bubbles. The degradation of the dye was strongly sensitive to the operational conditions. The natural matrices enhanced the degradation of the dye. Ultrasonic mineralization and oxidation of the dye solution was significantly enhanced by addition of a low quantity of Fe 2+ (15 mg L −1 ) .

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“…Effect of inorganics species in natural water at different isoxazolyl penicillin concentrations Recent investigations have shown that inorganic species in natural waters have inhibition and enhancement effects during the degradation of organic pollutants by AOPs (Costa and Olivi, 2009;Frontistis et al, 2014;Guzman-Duque et al, 2011;Hazime et al, 2012;Lipczynska-Kochany and Kochany, 2008;Merouani et al, 2010;Torres et al, 2007). In order to evaluate the effect of inorganics species commonly found in natural waters, experiments were carried out using characterized (Table 1) natural mineral water (pH 6.2).…”

Section: Effect Of Organic Additivesmentioning

confidence: 99%

Selecting the best AOP for isoxazolyl penicillins degradation as a function of water characteristics: Effects of pH, chemical nature of additives and pollutant concentration

Villegas-Guzmán

Silva-Agredo

Flórez

et al. 2017

Journal of Environmental Management

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a b s t r a c tTo provide new insights toward the selection of the most suitable AOP for isoxazolyl penicillins elimination, the degradation of dicloxacillin, a isoxazolyl penicillin model, was studied using different advanced oxidation processes (AOPs): ultrasound (US), photo-Fenton (UV/H 2 O 2 /Fe 2þ ) and TiO 2 photocatalysis (UV/TiO 2 ). Although all processes achieved total removal of the antibiotic and antimicrobial activity, and increased the biodegradability level of the solutions, significant differences concerning the mineralization extend, the pH of the solution, the pollutant concentration and the chemical nature of additives were found. UV/TiO 2 reached almost complete mineralization; while~10% mineralization was obtained for UV/H 2 O 2 /Fe 2þ and practically zero for US. Effect of initial pH, mineral natural water and the presence of organic (glucose, 2-propanol and oxalic acid) were then investigated. UV/H 2 O 2 /Fe 2þ and US processes were improved in acidic media, while natural pH favored UV/TiO 2 system. According to both the nature of the added organic compound and the process, inhibition, no effect or enhancement of the degradation rate was observed. The degradation in natural mineral water showed contrasting results according to the antibiotic concentration: US process was enhanced at low concentration of dicloxacillin followed by detrimental effects at high substrate concentrations. A contrary effect was observed during photo-Fenton, while UV/TiO 2 was inhibited in all of cases. Finally, a schema illustrating the enhancement or inhibiting effects of water matrix is proposed as a tool for selecting the best process for isoxazolyl penicillins degradation.

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Influence of bicarbonate and carbonate ions on sonochemical degradation of Rhodamine B in aqueous phase

Cited by 185 publications

References 20 publications

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Sonochemical degradation of Basic Red 29 in aqueous media

Selecting the best AOP for isoxazolyl penicillins degradation as a function of water characteristics: Effects of pH, chemical nature of additives and pollutant concentration

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