Color Removal from Synthetic Textile Wastewater by Sono‐Fenton Process

Özdemir, Celalettin; Öden, Muhammed Kamil; Şahinkaya, Serkan; Kalıpcı, Erkan

doi:10.1002/clen.201000263

Cited by 60 publications

(28 citation statements)

References 34 publications

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“…Furthermore, anaerobic processes are also not convenient for this kind of wastewater containing dye, because the degradation of azo dyes under anaerobic conditions results in the breakdown of azo bonds which leads to formation of toxic aromatic amines [4]. Therefore, many different chemical treatment processes have been proposed in order to treat the textile effluents containing azo dyes; adsorption [5], coagulation [6], electro-coagulation [7,8], Fenton oxidation methods [9,10], ozonation [11] and sonication [12]. Among these processes, the Fenton process is one of the most simple and cheap treatment methods for the textile wastewaters and has caught attention as an effective alternative for the treatment of textile wastewater.…”

Section: Introductionmentioning

confidence: 99%

COD and color removal from synthetic textile wastewater by ultrasound assisted electro-Fenton oxidation process

Şahinkaya

2013

Journal of Industrial and Engineering Chemistry

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108

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Section: Introductionmentioning

confidence: 99%

COD and color removal from synthetic textile wastewater by ultrasound assisted electro-Fenton oxidation process

Şahinkaya

2013

Journal of Industrial and Engineering Chemistry

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108

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“…Advanced oxidation process using hydroxyl radicals has been found as an alternative and efficient tool for the treatment of various organic pollutants. Among these processes, Fenton processes such as conventional Fenton process [1,[6][7][8][9], photo-Fenton [8,9], sono-Fenton [10,11], electro-Fenton (EF) [12][13][14][15][16][17], helielectro-Fenton [18], sono-photo-Fenton [10], photo-electro-Fenton [19,20], etc., received great attention during recent years. Except EF process, other Fenton processes require the external addition of hydrogen peroxide for the production of hydroxyl radicals.…”

Section: Introductionmentioning

confidence: 99%

Comparative Removal of Rhodamine B from Aqueous Solution by Electro‐Fenton and Electro‐Fenton‐Like Processes

Nidheesh

Gandhimathi

2013

CLEAN Soil Air Water

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Recently, electro‐Fenton (EF) process has received great attention in the field of wastewater treatment. Removal of rhodamine B (RhB) from aqueous solution has been investigated by EF and EF‐like process in graphite‐graphite EF system. Efficiencies of Fe0, Fe2+, Fe3+, Cu2+, and Mn2+ as Fenton and Fenton‐like catalysts for removing RhB from aqueous solution were compared. Effects of operating parameters such as solution pH, catalyst concentration, electrolysis time and applied voltage on dye removal were analyzed. It has been demonstrated that more than 90% dye removal was obtained after 180 min electrolysis at an optimal solution pH 3 for EF process and 2.5 for EF‐like process. Model predicted values for first order kinetics were very near to experimental values than that of pseudo second order kinetic model, suggesting that EF and EF like process follows first order kinetics. The rate of RhB removal at optimum catalysts concentrations follows the order of Fe0 > Mn2+ > Fe3+ > Fe2+ > Cu2+. In contrary to this, Fe3+ was found as the best catalyst for the RhB removal with a less optimal concentration of 5 mg/L. The present study demonstrated that EF and EF‐like processes are promising technologies for the treatment of dyes from aqueous solution.

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“…Ultrasonic cavitation is capable of mixing potassium hydroxide and acetic acid more efficiently to be utilized in the manufacturing process of PEG, resulting in the improvement of the PEG properties. The ultrasonic cavitation technique has been effectively used in the wastewater treatment industry, emulsion processing, and biodiesel production …”

Section: Theory: Polyethylene Glycol (Peg) and The Production Processmentioning

confidence: 99%

“…[22,43] Ultrasonic cavitation is capable of mixing potassium hydroxide and acetic acid more efficiently to be utilized in the manufacturing process of PEG, resulting in the improvement of the PEG properties. The ultrasonic cavitation technique has been effectively used in the wastewater treatment industry, [44] emulsion processing, [45][46][47] and biodiesel production. [22,43] Many industrial companies (e.g., The Dow Chemical Company, BASF, and INEOS) that manufacture PEG commonly employ the blending process or mechanical stirring that produces soluble salts such as potassium acetate with a high conductivity.…”

Section: Production Processmentioning

confidence: 99%

Effects of ultrasonic cavitation on neutralization process of low molecular weight polyethylene glycol

et al. 2018

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In recent decades, ultrasound has been broadly employed in different applications, particularly in the chemical industry. Ultrasound enhances chemical reactions in a solution via generation of cavitation microbubbles. It improves mass transfer rate and kinetic rate of targeted systems under various process conditions. In polyethylene glycol (PEG) production, the neutralization reaction is generally carried out by employing a mechanical stirring operation. However, this process produces a soluble salt containing potassium and acetate ions, which are known to appreciably manipulate/alter the properties of PEG. In this paper, ultrasound influence is initially analyzed through the neutralization of deionized water. This study then focuses on the neutralization of PEG using ultrasonic cavitation and its impact on the properties of PEG. The ultrasonic cavitation unit employed in this research is a COLE‐Parmer® 500 W & 20 kHz with an ultrasonic probe. To investigate the efficiency of the ultrasonic cavitation reactor and analyze the important aspects of the implemented method, the concentration of soluble salts and conductivity of PEG neutralized by the ultrasonic cavitation method are measured and compared with those of the commercial PEG prepared by the mechanical stirring methodology. The results reveal that the neutralization reaction via the ultrasonic cavitation lowers the conductivity and concentrations of potassium and acetate ions, compared to the traditional stirring methods. It is also concluded that the minimum conductivity and the minimum content of potassium and acetate ions are achieved at 30 % power and a reaction time of 5 min. This study promises the efficient utilization of the ultrasonic cavitation in the industrial sectors, particularly in pharmaceutical industries.

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Color Removal from Synthetic Textile Wastewater by Sono‐Fenton Process

Cited by 60 publications

References 34 publications

COD and color removal from synthetic textile wastewater by ultrasound assisted electro-Fenton oxidation process

COD and color removal from synthetic textile wastewater by ultrasound assisted electro-Fenton oxidation process

Comparative Removal of Rhodamine B from Aqueous Solution by Electro‐Fenton and Electro‐Fenton‐Like Processes

Effects of ultrasonic cavitation on neutralization process of low molecular weight polyethylene glycol

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