Evaluation of advanced oxidation processes (AOP) using O3, UV, and TiO2 for the degradation of phenol in water

Suzuki, Hirotoshi; Araki, Sadao; Yamamoto, Hideki

doi:10.1016/j.jwpe.2015.04.011

Cited by 146 publications

(50 citation statements)

References 44 publications

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“…37 byproducts, as suggested before. Suzuki et al 25 proposed that phenol is firstly hydroxylated leading to hydroquinone and catechol, which are further oxidized to o-benzoquinone and p-benzoquinone, respectively. Chromatographic analyses revealed a partial degradation of phenol (88% in reaction time of 120 min), and the formation of intermediates (hydroquinone, resorcinol, catechol and p-benzoquinone) remaining until the highest assessed reaction time (120 min), confirming the non-mineralization of the substrate.…”

Section: Heterogeneous Photocatalysis (Tio 2 /Uva and Zno/ Uva)mentioning

confidence: 99%

“…20 Regarding chemical treatments, advanced oxidation processes (AOP) occupy a prominent place, mainly due to their high mineralization capacity toward several biorefractory organic compounds, 21,22 typically with less energy requirements. 23 Several studies have reported efficient degradation of phenol by heterogeneous photocatalysis assisted by TiO 2 24,25 and ZnO, 26 Fenton 27 and photo-Fenton processes. 28 In the present work, the potentiality of advanced oxidation processes (Fenton, photo-Fenton, TiO 2 /UV and ZnO/UV) was investigated, regarding the degradation of phenolic compounds in a liquid residue from the thermal treatment of petrochemical residues (oily sludge).…”

Section: Introductionmentioning

confidence: 99%

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Advanced Oxidation Processes to the Remediation of Liquid Residue from the Thermal Treatment of Oily Sludge

Costa¹,

Althoff²,

Schneider³

et al. 2019

J. Braz. Chem. Soc.

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This work reports the remediation of a liquid residue derived from the thermal treatment of petrochemical residues by advanced oxidation processes. Firstly, degradation studies of phenol aqueous solutions by heterogeneous photocatalysis, Fenton, and photo-Fenton were conducted. Fenton processes showed a higher efficiency, mainly in the UVA photo-assisted mode (94% in 3 min), and henceforward it was chosen for the remediation of the residue. However, the high organic load of the raw residue (6,000 mg L-1 of chemical oxygen demand (COD)) limited the efficiency of the Fenton processes. Hence, the raw liquid residue was diluted with the scrubber residue, produced during the thermal treatment of the petrochemical residues, reducing the COD to values close to 2,000 mg L-1. The photo-Fenton treatment allowed the removal of approximately 95% of the COD load, decreasing the residual concentration of phenolic compounds from 213 to 0.5 mg L-1. At the same time, the concentration of BTEXs (benzene, toluene, ethylbenzene and xylene) were reduced to values lower than the limit of quantification (LOQ) of the chromatographic technique. Therefore, the photo-Fenton process is an efficient alternative to the remediation of residues with high complexity and with high COD values, like the ones obtained in the petrochemical industry.

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Section: Heterogeneous Photocatalysis (Tio 2 /Uva and Zno/ Uva)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advanced Oxidation Processes to the Remediation of Liquid Residue from the Thermal Treatment of Oily Sludge

Costa¹,

Althoff²,

Schneider³

et al. 2019

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…The conventional disposal methods applied for the removal of phenolic compounds are generally not satisfactory due to the higher stability of phenolic compounds. In recent years, many advanced treatment schemes such as cavitation (ultrasonic cavitation and hydrodynamic cavitation) [3][4][5], photocatalysis [6], Fenton [7], photo-Fenton [8], wetair oxidation [9], electrochemical oxidation [10], and ozonation [11] as well as the combined treatments based on different oxidation schemes [12][13][14][15][16][17][18] have been applied for the degradation of phenolic pollutants in waste water. Besides these methods, microwave (MW) irradiation can also be effective giving localized higher energy densities and uniform intense heating [19].…”

Section: Introductionmentioning

confidence: 99%

Degradation of 4-chloro 2-aminophenol using combined approaches based on microwave and photocatalysis

Barik

Kulkarni

Gogate

2016

Separation and Purification Technology

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“…The catalysts have a low cost and are efficient and commercially available (Karunakaran et al 2012;Royaee et al 2012;Suzuki et al 2015;Silva et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Photodegradation applied to the treatment of phenol and derived substances catalyzed by TiO2/BiPO4 and biological toxicity analysis

Zaidan

Sales

Salgado

et al. 2015

Environ Sci Pollut Res

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For this work, a phenol solution model was treated by an advanced oxidation process (AOPs), using the heterogeneous catalyst TiO/BiPO and hydrogen peroxide combined with UVA for 240 min. An annular reactor containing a UVA lamp (80 W) was employed. A central composite rotacional design was developed employing a TiO/BiPO concentration of 87 mg L and a hydrogen peroxide concentration of 1800 mg L, being evaluated by the degradation percentage and phenol mineralization percentage as responses; 94.30 and 67.00 % were obtained for the phenol degradation and total organic carbon (TOC) conversion, respectively. The lumped kinetic model (LKM) was applied and a satisfactory profile of the residual fractions of the organic compounds present in the liquid phase as a time function with a determination coefficient (R = 0.9945). The toxicity tests employing microbiological species indicated that the organisms tested for the evaluation of the toxic compounds present in the contaminated samples presented a practical low cost test, rapid execution, and high sensibility as an indicator of the presence of toxic substances in liquid effluents.

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Evaluation of advanced oxidation processes (AOP) using O3, UV, and TiO2 for the degradation of phenol in water

Cited by 146 publications

References 44 publications

Advanced Oxidation Processes to the Remediation of Liquid Residue from the Thermal Treatment of Oily Sludge

Advanced Oxidation Processes to the Remediation of Liquid Residue from the Thermal Treatment of Oily Sludge

Degradation of 4-chloro 2-aminophenol using combined approaches based on microwave and photocatalysis

Photodegradation applied to the treatment of phenol and derived substances catalyzed by TiO2/BiPO4 and biological toxicity analysis

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