Sonolysis of alkylphenols in aqueous solution with Fe(II) and Fe(III)

Yim, Bongbeen; Yoo, Young-Eok; Maeda, Yasuhiro

doi:10.1016/s0045-6535(02)00665-3

Cited by 77 publications

(34 citation statements)

References 31 publications

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“…It has been reported that the sonochemical degradation of phenols can be enhanced by the addition of Fe 2+ [23,24]. Here, the effect of Fe2+ addition on the sonochemical degradation of Congo red (initial concentration 20 mg/L, pH 3.0, temperature 25 • C) was investigated and the result is shown in Figure 5.…”

Section: Effect Of Fe 2+ and Fenton Reagent Additionmentioning

confidence: 98%

Ultrasonic cavitation induced degradation of Congo red in aqueous solutions

Meshram¹,

Tayade²,

Ingle

et al. 2010

Chem. Eng. Res. Bull.

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Ultrasonic cavitation induced degradation of Congo red in aqueous solution was investigated for a variety of operating conditions. It is found that the degradation of Congo red in aqueous solution follows pseudo-first-order reaction kinetics and the degradation rate is dependent on the initial concentration of Congo red, the temperature and pH of the aqueous medium. The effects of Fe 2+ and Fenton reagent addition on the sonochemical degradation of Congo red were also investigated. The results obtained here indicate that the degradation rate of Congo red in aqueous solution was substantially accelerated by Fe 2+ , NaCl or Fenton reagent addition.

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Section: Effect Of Fe 2+ and Fenton Reagent Additionmentioning

confidence: 98%

Ultrasonic cavitation induced degradation of Congo red in aqueous solutions

Meshram¹,

Tayade²,

Ingle

et al. 2010

Chem. Eng. Res. Bull.

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“…However, the production of the HO 2 · increases the oxidation process due to further formation of H 2 O 2 by its recombination reaction as follows (Kojima et al 2005;Mendez-Arriaga et al 2008;Naddeo et al 2010;Olson and Barbier 1994;Tuziuti et al 2009;Yim et al 2003):…”

Section: Effect Of Aeration On the Removal Of Pah At Increasing Sonicmentioning

confidence: 99%

“…Benabdallah El-Hadj et al (2007) found 34% and 31% PAH removal effiencies in mesophilic conditions (35°C) for naphthalene (NAP) and PY. It was observed that the PAHs degraded with a yield of 79% in a N 2 (g) sparged system with a high concentration of OH· scavenger solution, degraded (David 2009;Yim et al 2003). Park et al (2000) and Little et al (2002) studied the the influence of N 2 (g) sparging on the sonochemical degradation of PHE at 30-45 kHz and at power of 340-450 W. Dai et al (2008) found 98% PAH removals with 27 mg L −1 Fe +2 at 28 kHz ultrasounic frequency after 140 min sonication time.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Air, N2 (gas), Fe+3 and Fe3O4 Nanoparticles on the Sonication of Less and More Hydrophobic Polycyclic Aromatic Hydrocarbons (PAHs) and Toxicity

Sponza

Özteki̇n

2011

Water Air Soil Pollut

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In this study, the effects of 1 h aeration, nitrogen gas N 2 (g) sparging (15 and 30 min) and increasing ferric ions (Fe +3 ) as FeSO 4 (10, 20 and 50 mg L −1 ) and Fe 3 O 4 nanoparticles (1, 2 and 4 gL −1 ) concentrations on three less hydrophobic and three more hydrophobic polycyclic aromatic hydrocarbons (PAHs) and toxicity removals from a petrochemical industry in Izmir (Turkey) were investigated in a sonicator with a power of 650 W and an ultrasound frequency of 35 kHz; 1 h aeration increased the yields in benzo[b]fluoranthene, benzo[k]fluoranthene and benzo[a]pyrene PAHs (less hydrophobic) from 62% to 67% to around 95-97% after 150 min sonication at 60°C. However, 1 h aeration did not contribute to the yields of more hydrophobic PAHs (indeno[1,2,3-cd] pyrene, dibenz[a,h]anthracene, benzo[g,h,i]perylene). The maximum yields were obtained at acidic and alkaline pH for more and less hydrophobic PAHs, respectively, after 60 and 120 min sonication at 30°C; 30 min N 2 (g) sparging, 50 mg L −1 Fe +3 increased the yields of less hydropobic PAHs after 150 min sonication at 60°C. Two milligrams per liter of Fe 3 O 4 nanoparticles increased both less (87-88%) and more (96-98%) hydrophobic PAH yields. The Daphnia magna acute toxicity test showed that the toxicity decreased significantly with an hour aeration, 30 min N 2 (g) sparging, 50 mg L −1 Fe +3 and 2 gL −1 Fe 3 O 4 nanoparticles at 60°C after 120 and 150 min sonications. Vibrio fischeri was found to be more resistant to the sonicated samples than D. magna. Significant correlations were found between the physicochemical properties of sonicated PAHs and acute toxicities both organisms.

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“…Yim et al 43 studied the sonolysis of alkylphenols in an aqueous solution with Fe 2+ and Fe 3+ ions. They revealed that the degradation rate was about 2.2 times greater than that of ultrasound treatment alone.…”

Section: Combination Of Ultrasonic Irradiation and Treatment With Fenmentioning

confidence: 99%

Recent trends in the decomposition of chlorinated aromatic hydrocarbons by ultrasound irradiation and Fenton's reagent

Liang

Komarov

Hayashi

et al. 2007

J Mater Cycles Waste Manag

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Over the past few years, a large number of studies have been conducted on the use of ultrasound for decomposition of harmful organic pollutants, particularly chlorinated aromatic hydrocarbons (CAH) in wastewater. The published reports cover a variety of applications, including both ultrasonic treatment alone and in combination with other methods, e.g., advanced chemical oxidation processes. This article presents a review of recent work on ultrasonicbased methods of CAH decomposition, with emphasis on the applications of ultrasound alone and in combination with Fenton's reagent, as attractive advanced oxidation systems. In the fi rst part of this review, the basic principles of sonochemical treatment are presented, followed by a review of the applications of ultrasound alone for CAH degradation. In the second part, the mechanisms of CAH degradation with Fenton's reagent and its application for CAH degradation are summarized. In the fi nal part, studies on the applications of ultrasound together with Fenton's reagent are reviewed. The reported results suggest that a combination of ultrasound and Fenton's reagent is more attractive for practical application than the use of either method separately. Further studies, however, are required in this area because the reaction mechanism and the relationship between the reaction rates and process parameters for such a combined process are not yet well established.

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Sonolysis of alkylphenols in aqueous solution with Fe(II) and Fe(III)

Cited by 77 publications

References 31 publications

Ultrasonic cavitation induced degradation of Congo red in aqueous solutions

Ultrasonic cavitation induced degradation of Congo red in aqueous solutions

Effectiveness of Air, N2 (gas), Fe+3 and Fe3O4 Nanoparticles on the Sonication of Less and More Hydrophobic Polycyclic Aromatic Hydrocarbons (PAHs) and Toxicity

Recent trends in the decomposition of chlorinated aromatic hydrocarbons by ultrasound irradiation and Fenton's reagent

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