Removal of Acid Orange 7 from water by electrochemically generated Fenton's reagent

Özcan, Ali; Oturan, Mehmet A.; Oturan, Nihal; Şahin, Yücel

doi:10.1016/j.jhazmat.2008.07.088

Cited by 258 publications

(125 citation statements)

References 49 publications

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“…This result is in the same trend with that obtained by Ozcan et al [19] for the degradation of Acid Orange 7 and Hammami et al [20] for the degradation of direct orange 61.…”

Section: Influence Of Fe 2+ Concentrationsupporting

confidence: 91%

Study of Some Parameters Responsible for Glyphosate Herbicide Mineralization by Electro - Fenton Process

Le¹

2018

JST

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Glyphosate (C 3 H 8 NO 3 P) is a highly effective broad-spectrum, post-emergence, nonselective organophosphate herbicide and commonly applied in Viet Nam. The removal of glyphosate in aqueous solution has been investigated by electro -fenton process which is based on the continuous production of • OH radicals by reaction between Fe 2+ catalyst and H 2 O 2 electrochemical generated on cathode. The carbon felt (60 cm 2 ) and Pt gauze (45 cm 2 ) were used as cathode and anode of the electro-fenton system, successively. Monitoring the total organic carbon (TOC) during the electrolysis proved that pH, current intensity, electrolysis time and catalyst concentration influenced the glyphosate mineralization efficiency. At the optimal conditions: [Fe 2+ ] = 0.1 mM; pH = 3; [Na 2 SO 4 ] = 0.05M ; I = 0.5A and the compressed air was bubbled through the solutions, the experiment results showed that 84.4 % Glyphosate was mineralized to CO 2 , H 2 O and inorganic acid after 50 min.

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“…This result is in the same trend with that obtained by Ozcan et al [19] for the degradation of Acid Orange 7 and Hammami et al [20] for the degradation of direct orange 61.…”

Section: Influence Of Fe 2+ Concentrationsupporting

confidence: 91%

Study of Some Parameters Responsible for Glyphosate Herbicide Mineralization by Electro - Fenton Process

Le¹

2018

JST

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“…From several decades various methods have been evolved in wastewater treatment such as electrochemical treatment methods [12][13][14], oxidation [15], and ozonation [16]. However, the adsorption process has been proven as a most effective and reliable method for dye removal.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of hazardous anionic dye “Congo red” from wastewater using waste materials and recovery by desorption

Mittal

Malviya

et al. 2009

Journal of Colloid and Interface Science

653

210

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a b s t r a c tThe present investigation assesses the applicability of waste materials-bottom ash and deoiled soya-for the removal of the colorant Congo red from wastewaters. The adsorption characteristics and dye removal efficiency of adsorbents have been determined by investigating factors such as effect of pH, effect of concentration of the dye, amount of adsorbents, contact time, and temperature. Langmuir, Freundlich, Tempkin, and Dubinin-Radushkevich isotherm models have been used to evaluate the ongoing adsorption. With the help of adsorption isotherm data different thermodynamic parameters such as free energy; enthalpy, and entropy have been calculated. The estimated free energy has been obtained as À21.52 kJ mol À1 for bottom ash and À16.88 kJ mol À1 for deoiled soya. On the basis of pseudo-first-order and pseudo-second-order kinetic equations different kinetic parameters have been obtained. Column operations depicted good adsorptive tendencies for Congo red with 96.95% and 97.14% saturation of dye on bottom ash and deoiled soya, respectively. Regeneration of the saturated columns has been made by eluting NaOH solution and more than 90% dye has been recovered in both cases.

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“…This Photo Fenton process had been effectively used to degrade the pollutants. Various AOPs such as acoustic cavitation [28], H 2 O 2 [29,30], Fenton [4,29,31], Photo Fenton [31], Photolytic (UV) [30,32], Photolytic with H 2 O 2 (UV + H 2 O 2 ) [33], Photo catalytic [34][35][36], Electrochemical [37]and Electro Fenton [38]degradation processes have been reported in the literature for the degradation of synthetic textile industry waste water, not studied for real textile industry waste water. However, the use of acoustic cavitation combination of Fenton and Photo Fenton process for the treatment of textile industry waste water has not yet been explored.…”

Section: Introductionmentioning

confidence: 99%

Reduction of COD of Textile Industry Waste Water by Using Acoustic Cavitation Coupled with Advanced Oxidation Processes

Thakare¹,

Wani²

2018

IJRASET

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Removal of Acid Orange 7 from water by electrochemically generated Fenton's reagent

Cited by 258 publications

References 49 publications

Study of Some Parameters Responsible for Glyphosate Herbicide Mineralization by Electro - Fenton Process

Study of Some Parameters Responsible for Glyphosate Herbicide Mineralization by Electro - Fenton Process

Adsorptive removal of hazardous anionic dye “Congo red” from wastewater using waste materials and recovery by desorption

Reduction of COD of Textile Industry Waste Water by Using Acoustic Cavitation Coupled with Advanced Oxidation Processes

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