COD removal from real dyeing wastewater by electro-Fenton technology using an activated carbon fiber cathode

Wang, Chih-Ta; Chou, Wei‐Lung; Chung, Mei−Hui; Kuo, Yi‐Ming

doi:10.1016/j.desal.2009.11.020

Cited by 281 publications

(104 citation statements)

References 25 publications

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“…Nowadays, many carbonaceous materials have been investigated as the EF cathode, such as graphite [16], carbon felt [17][18][19], graphite felt [20][21][22], carbon sponge [23], activated carbon fiber [24][25][26], carbon-PTFE air-diffusion electrode [27][28][29][30][31][32][33]. Among them, graphite felt (GF) is a promising commercialization cathode material, due to their advantages of large three dimensional active surfaces, chemical resistance, mechanical integrity and easiness to be manufactured.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of a novel KOH activated graphite felt cathode for the electro-Fenton process

Wang

Liu

Wang

et al. 2015

Applied Catalysis B: Environmental

184

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of a novel KOH activated graphite felt cathode for the electro-Fenton process

Wang

Liu

Wang

et al. 2015

Applied Catalysis B: Environmental

184

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“…Indeed, increase in pH from 3 to 6 caused a decrease in mineralization efficiency from 58 % to 30 % in 50 min and it can be explained as follows. At pH above 3, Fe 3+ could start to be precipitated in the form of amorphous Fe(OH) 3 which are less reactive than the dissolved ions and thus the iron concentration is decreased in the solution reducing the degradation efficiency [6]. Also, this hydroxide could partially coat the electrode surface inhibiting Fe 2+ regeneration at the cathode (Eq.…”

Section: 1the Effect Of Initial Phmentioning

confidence: 99%

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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“…where V, I, T, and V S are the voltage, current (amp), time (hour), and volume of the solution (liter), respectively [44]. ) were used during both electrochemical processes for treatment of 1 L of solution.…”

Section: Wastewater Sampling and Analysismentioning

confidence: 99%

A Comparative Study of Electrochemical Treatment of Para-Toluic Acid (p-TA) from Aqueous Solution: Process Optimization and Sludge Analysis

Sandhwar

Prasad

2017

Water Conserv Sci Eng

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The present study deals with the removal of paratoluic acid (p-TA) as well as chemical oxygen demand (COD) from synthetic solution. Pretreatment of aqueous solution was done by acid precipitation at different pH levels (3-6) and temperatures (15-60°C). The pretreated solution was further treated by electrocoagulation (EC) and electro-Fenton (EF) treatment technologies using iron anode and graphite cathode. Optimization of various independent operating parameters viz. initial pH (1-9), current density (30.48-152.44 A/m 2 ), electrolyte concentration (for EC) (0.03-0.07 mol/L), H 2 O 2 concentration (for EF) (300-700 mg/L), and electrolysis time (10-90 min) was performed using central composite design (CCD) in response surface methodology (RSM). At optimum operating conditions, maximum removal percent of p-TA 64.83, 74.50; COD 61.27, 68.21; and energy consumption (kWh/kg COD removed) 69.71, 41.60 were obtained by EC and EF processes, respectively. In this study, it was observed that the EF process was more efficient than EC process based on percent removal of p-TA and COD with minimum energy consumption (E.consumption). Sludge obtained after EC and EF treatments was analyzed for various physicochemical characteristics like settling, point of zero charge, XRD, FTIR, SEM/EDX, and DTA/TGA.

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COD removal from real dyeing wastewater by electro-Fenton technology using an activated carbon fiber cathode

Cited by 281 publications

References 25 publications

Preparation and characterization of a novel KOH activated graphite felt cathode for the electro-Fenton process

Preparation and characterization of a novel KOH activated graphite felt cathode for the electro-Fenton process

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

A Comparative Study of Electrochemical Treatment of Para-Toluic Acid (p-TA) from Aqueous Solution: Process Optimization and Sludge Analysis

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