Treatment of phenolic wastewaters in single baffle reactor by Solar/TiO2/H2O2 process

Adishkumar, S.; Kanmani, S.

doi:10.5004/dwt.2010.1183

Cited by 33 publications

(21 citation statements)

References 15 publications

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“…[1][2][3][4] In addition, cresols are extensively used in resin manufacturing, pharmaceuticals, pesticides, tri-cresylic acid and surfactants, therefore they are released in the wastewaters from those industries. Several processes have been developed for the treatment of phenol polluted wastewaters: biodegradation, 5,6 conventional physico-chemical methods such as adsorption, 7,8 and conventional advanced oxidation processes (AOPs) such as photodegradation, 9,10 Fenton oxidation 1,11 and their combinations. Several processes have been developed for the treatment of phenol polluted wastewaters: biodegradation, 5,6 conventional physico-chemical methods such as adsorption, 7,8 and conventional advanced oxidation processes (AOPs) such as photodegradation, 9,10 Fenton oxidation 1,11 and their combinations.…”

Section: Introductionmentioning

confidence: 99%

Effective heterogeneous electro-Fenton process of m-cresol with iron loaded actived carbon

et al. 2015

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The degradation of m-cresol (MC) has been investigated by a heterogeneous electro-Fenton process using iron loaded activated carbon (Fe-AC) as the heterogeneous electro-Fenton catalyst. Experimental results demonstrated that MC was effectively removed through an electro-Fenton process. Calculated TOC removal and overall energy consumption showed that the use of a low iron concentration (28 mg L À1 ) increases the efficiency of the process. The reactions followed a pseudo-first order kinetic equation and kinetic coefficients confirm that the MC reduction, when it is alone, is faster than in the presence of a similar compound, tert-butylhydroquinone (TBHQ) (from 0.0935 to 0.0692 min À1 ); therefore TBHQ exerts an antioxidative protection effect. In all cases, it is concluded that heterogeneous electro-Fenton treatment with Fe-AC follows a two-step process: adsorption and oxidation; allowing removal rates higher than in the literature. In addition, the reusability of this catalyst was demonstrated by operating it in continuous mode. Finally, LC-MS analysis allowed the development of a plausible degradation route.

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Section: Introductionmentioning

confidence: 99%

Effective heterogeneous electro-Fenton process of m-cresol with iron loaded actived carbon

et al. 2015

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“…The other methods used to generate hydroxyl radicals in aqueous solutions are O 3 /UV, H 2 O 2 /UV, Fe(II)/H 2 O 2 and TiO 2 / UV [22][23][24]. Among these methods, photocatalytic reaction using TiO 2 /UV can treat organic compounds and heavy metals at the same time.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic removal of Cr(VI) and Ni(II) by UV/TiO₂: kinetic study

Siboni

Samadi

Yang

et al. 2012

Desalination and Water Treatment

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A B S T R AC TIn this study, photocatalytic removal of Cr(VI) and Ni(II) by illuminated TiO 2 was investigated with variation of solution pH, contact time, TiO 2 dosage and initial Cr(VI) and Ni(II) concentration. From the photocatalytic reaction, near complete elimination of Cr(VI) and Ni(II) occurred from the adsorption of Cr(VI) and Ni(II) on the surface of TiO 2 as well as reduction of Cr(VI) and Ni(II) to Cr(III) and Ni(0), respectively. Reduction was recognized as a signifi cant elimination process for the treatment Cr(VI) and Ni(II) from wastewater. Removal of Cr(VI) decreased with increasing pH while removal of Ni(II) increased with increasing pH. TiO 2 dosage was also an important parameter for the removal of Cr(VI). As the TiO 2 dosage increased up to 1 g l −1 , removal of Cr(VI) and Ni(II) was continuously enhanced.

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“…Advanced oxidation processes (AOPs) have been successfully utilized to treat highly contaminated and toxic wastewater with organic pollutants (especially persistent organic pollutants (POPs)) [7][8][9][10]. In fact, several studies have examined the elimination of DEP using advanced oxidation processes (AOPs) involving the generation of the hydroxyl radical (OH • ), such as UV/H 2 O 2 [11], UV/ H 2 O 2 /Fe 2+ [1] and Fe(III)/solar light [12].…”

Section: Introductionmentioning

confidence: 99%

“…One of the advantages of photocatalysis is that aliphatic and aromatic compounds can be completely mineralized under controlled conditions [13,14]. Moreover, titanium dioxide (TiO 2 ) is widely used as photocatalyst, since it is well known to be capable of oxidizing various pollutants, non-toxic, chemically stable, and commercially available [6,7,9,10,13,[15][16][17][18][19]. The disadvantage is the slow electron transfer from TiO 2 to O 2 and that mineralization requires longer time [20].…”

Section: Introductionmentioning

confidence: 99%

Degradation of diethyl phthalate (DEP) in aqueous solution using TiO₂/UV process

Mansouri¹,

Bousselmi²

2012

Desalination and Water Treatment

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A B S T R AC TDiethyl phthalate (DEP) has been classifi ed as an endocrine disruptor pollutant. The degradation of DEP C 12 H 14 O 4 , in aqueous solution by TiO 2 -UV process was optimized using high pressure mercury lamp. Effects of TiO 2 dosage and type, and pH values on the degradation of DEP by TiO 2 /UV process were investigated. The optimal TiO 2 dosage and pH value for the DEP degradation were 1 g l −1 and 7.0, respectively using TiO 2 P25. The degradation rate of DEP by TiO 2 /UV process under optimal conditions reach 78.6% and could be fi tted fi rst-order kinetics.

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Treatment of phenolic wastewaters in single baffle reactor by Solar/TiO2/H2O2 process

Cited by 33 publications

References 15 publications

Effective heterogeneous electro-Fenton process of m-cresol with iron loaded actived carbon

Effective heterogeneous electro-Fenton process of m-cresol with iron loaded actived carbon

Photocatalytic removal of Cr(VI) and Ni(II) by UV/TiO₂: kinetic study

Degradation of diethyl phthalate (DEP) in aqueous solution using TiO₂/UV process

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Treatment of phenolic wastewaters in single baffle reactor by Solar/TiO2/H2O2 process

Cited by 33 publications

References 15 publications

Effective heterogeneous electro-Fenton process of m-cresol with iron loaded actived carbon

Effective heterogeneous electro-Fenton process of m-cresol with iron loaded actived carbon

Photocatalytic removal of Cr(VI) and Ni(II) by UV/TiO2: kinetic study

Degradation of diethyl phthalate (DEP) in aqueous solution using TiO2/UV process

Contact Info

Product

Resources

About

Photocatalytic removal of Cr(VI) and Ni(II) by UV/TiO₂: kinetic study

Degradation of diethyl phthalate (DEP) in aqueous solution using TiO₂/UV process