Efficiency of electro-Fenton process in removing Acid Red 18 dye from aqueous solutions

Malakootian, Mohammad; Moridi, Alireza

doi:10.1016/j.psep.2017.06.008

Cited by 66 publications

(16 citation statements)

References 37 publications

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“…Since one of the factors influencing the Fenton oxidation process is pH, performing the process in acidic pH is one of the main constraints of this method. Because in acidic pH, the stability of iron ions and hydrogen peroxide is increased in the solution, and iron sulfate in the environment completely forms a Fe(OH) 2+ which increases the production of • OHs and reduces the efficiency of removal . Also, previous studies have shown that at pH <3, iron hydroxide with hydrogen peroxide reacts slowly and reduces OH radicals and reduces the removal efficiency.…”

Section: Resultsmentioning

confidence: 99%

Evaluate the Performance of Fenton Process for the Removal of Methylene Blue from Aqueous Solution: Experimental, Neural Network Modeling and Optimization

Mousavi

Vasseghian

Bahadori

2018

Env Prog and Sustain Energy

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In this article, degradation of Methylene Blue by Fenton's oxidation process was investigated. The effect of, Fe2+ and H2O2 concentrations and reaction time in initial concentration of the dye = 10 mg/L, pH = 3 and lab temperature on the dye removal was studied. Also, Artificial Neural Networks (ANN) was applied to model the dye removal data obtained by Fenton oxidation process. A network consisting of two layers of eight neurons in the hidden layer was considered. Very low root mean squared error (RMSE) of 1.262 and high determination of coefficient (R2) of 0.995 in the network calculation verified validity of the acquired network for further analysis and optimization. © 2018 American Institute of Chemical Engineers Environ Prog, 39:e13126, 2020

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Section: Resultsmentioning

confidence: 99%

Evaluate the Performance of Fenton Process for the Removal of Methylene Blue from Aqueous Solution: Experimental, Neural Network Modeling and Optimization

Mousavi

Vasseghian

Bahadori

2018

Env Prog and Sustain Energy

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“…Ti/RuO2-IrO2-SnO2-TiO2 Ti nets [9]. Iron is a type of electrode that recently used this decade that was studied [10,12], iron plate [13].…”

Section: Electrode Typementioning

confidence: 99%

“…Sodium sulfate is a type of electrolyte that is widely used to increase the conductivity of solutions, as was done by [31] who added 0.05 M Na2SO4 to a waste solution containing dyes [11,32,33]. In addition to Na2SO4 there are other types of electrolytes which are often used, among others, NaCl, KCl, and MgSO4, which turns out that NaCl electrolyte is the most superior type of electrolyte in removing dyes compared to the other three electrolytes with 80% efficiency in time 15 minutes and optimal process conditions [10].…”

Section: Electrolytementioning

confidence: 99%

“…The removal of COD in dyecontaining textile industrial wastes was carried out, which reported that 75.2% COD was removed from waste by adding O2 to the electro-Fenton process as much as 150 cm 3 / minute [15]. Malakootian [10] reported that 99.9% ± 0.2% Acid Red 18 in synthetic waste and 90.5% ± 1.7% in original waste were able to be removed using iron electrodes in the electro-Fenton process.…”

Section: Colormentioning

confidence: 99%

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Electro-Fenton for Industrial Wastewater Treatment: A Review

Marlina

Purwanto

2019

E3S Web Conf.

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Electro-Fenton is part of electrochemical advanced oxidation processes (EAOPs) which have been widely used to treat various types of waste such as color, drugs, phenol compounds, leachate, surfactants, and others. This article focuses on the effects of various operating parameters and recent developments in the electro-Fenton process, and then their optimum ranges for maximum pollutant removal and various pollutants removed by this process is observed.

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“…Azo dyes form a group of compounds that are often used in the textile industry, food industry, linen industry etc. They contain one or more azo groups with double bond between nitrogen atoms -N=N- [6,7].…”

Section: Introductionmentioning

confidence: 99%

Application of Excess Activated Sludge as Waste Sorbent for Dyes Removal from their Aqueous Solutions

Pieczykolan

Płonka

2019

Ecological Chemistry and Engineering S

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Organic dyes are widely used in many industries (textiles, food, cosmetics, medicine and biology). These plants produce wastewater containing dyes. Even small amounts of dyes can cause a strong colour of wastewater. Therefore, it is very important to effectively remove residues of these pollutants from the wastewater, before discharging them into the environment. The sorption process is one of the methods used to remove dyes. However this method is often unprofitable economically in comparison with other dye removal processes, due to the high cost of commercial sorbents. Therefore, research is currently conducted in order to find waste materials that can be used as sorbents. The static sorption process of two dyes were carried out (Acid Red 18 and Acid Green 16) with the use of dried excess sludge. The activated sludge (excess) came from a municipal sewage treatment plant that purifies wastewater from carbon, nitrogen and phosphorus compounds. During the study the most favourable pH of the process and the contact time of the sorbent with the dyes were determined. It was observed that for both dyes the highest effectiveness of dye removal was obtained at pH = 2. The most favourable contact time was equal to 60 and 180 minutes for Acid Red 18 and Acid Green 16 respectively. In addition, in order to establish process parameters, a different models of sorption isotherm was examined. The studies showed that the sorption capacity (calculated based on Langmuir model) was much higher in the case of Acid Green 16 (qm = 434.8 mg/g) than for Acid Red 18 (qm = 109.9 mg/g). The experiments to evaluate the effect of pH, contact time on the process effectiveness and to determine the sorption isotherm were conducted at 293.15 K.

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Efficiency of electro-Fenton process in removing Acid Red 18 dye from aqueous solutions

Cited by 66 publications

References 37 publications

Evaluate the Performance of Fenton Process for the Removal of Methylene Blue from Aqueous Solution: Experimental, Neural Network Modeling and Optimization

Evaluate the Performance of Fenton Process for the Removal of Methylene Blue from Aqueous Solution: Experimental, Neural Network Modeling and Optimization

Electro-Fenton for Industrial Wastewater Treatment: A Review

Application of Excess Activated Sludge as Waste Sorbent for Dyes Removal from their Aqueous Solutions

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