Treatment of azo dye Acid Orange 52 using ozonation and completed-mixed activated sludge process

Abidin, Che Zulzikrami Azner; Fahmi, Muhammad Ridwan; Ong, Soon‐An; Ahmad, Rosmaini; Sabri, Siti Nasuha

doi:10.1088/1757-899x/206/1/012088

Cited by 2 publications

(3 citation statements)

References 17 publications

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“…It is assumed that there are about 10.000 commercial dyes used in the textile industry with the biggest number about 60% of azo dyes [1,2]. Some industries such as textile, plastic, leather, paper industries as additives, especially the textile industry consumed the largest dyes in manufacturing [1,3,4]. Thus, textile wastewaters are one of the most polluted wastewaters due to their characteristics include mixing contaminants.…”

Section: Introductionmentioning

confidence: 99%

“…For dye treatment, some conventional processes are used such as physico-chemical treatment methods including coagulation, and flocculation, ion-exchange or ultra-filtration and reverse osmosis and biological treatment methods [1,3,8,9]. However, these methods are limited in colour removal due to existence of recalcitrant compounds of dyeing textile wastewater and excess sludge production during treatment processes.…”

Section: Introductionmentioning

confidence: 99%

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Removal of Acid Orange 7 in Textile Wastewater by Homogeneous Ozonation

Thom¹

2022

TTEFT

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The textile industrial wastewater with number of dyes including inorganic and organic compounds is very polluted if it is not controlled before discharging into environment. Thus, colour wastewater treatment technology and decolourization efficiency are necessary. The aim of this study is to evaluate the removal efficiency of acid orange 7 (AO7) which has been using at large range in the textile industry by homogeneous ozone process. Decolourization of aquatic solutions containing Acid Orange 7 with initial concentration of 110ppm by using semi-batch reactor where transferred ozone from gas to liquid with initial concentration of 5ppm O 3 was studied. The highest decolourization of AO7 solution, about 80%, was achieved at pH3 after 1 hour-treatment time. This efficiency decreased with increasing the initial pH, namely 75%, 60%, 55% and 39% for pH 5, 7, 9, 10, respectively. The decolourization process of AO7 by homogenous ozonation was considered following by the second order kinetics and kinetic constants of the decolourization of AO7 were confirmed the ability of ozonation for decolourization of this dye. The rate constants of decolourization of AO7 were higher at pH 3, 5 with 2.6594M -1 s -1 , 1.8827 M -1 s -1 , respectively and lower at pH 7, 9, and 10 with 0.8624M -1 s -1 , 0.8979M -1 s -1 and 0.7777 M -1 s -1 , respectively. The results obtained shows the homogeneous ozonation capability can be applied to remove AO7 dye.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Removal of Acid Orange 7 in Textile Wastewater by Homogeneous Ozonation

Thom¹

2022

TTEFT

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“…However, the industry is not without its cons. Textile industries have been one of the major sources of water pollution, this is due consumption of large volumes of water and the resulting discharge of large quantities of coloured dye effluents as a result of processes which include pre-treatment, dyeing, printing and finishing [1][2][3]. The exegesis of wastewater discharged from textile industries presents a toxic suspended and dissolved solids substance [4].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Treatment of Disperse Blue1 Dyes in Simulated Textile Effluent: Parameter Optimization Method

Ezeigbo¹,

Festus²,

Fesomade³

et al. 2020

Preprint

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Electrochemical oxidation for Disperse blue 1 dye wastewater simulated in the laboratory, was investigated in this study using Graphite materials as the electrodes. The experiment was carried out in a batch process in a laboratory-scale that was analyzed at every 30 min regular intervals, for a total period of 180 min. the results were reported in terms of colour removal for different parameters of initial concentrations (50mg/L, 95mg/L, and 145mg/L), electrode geometry (plain and cylindrical), pH (4, 7, 9), current intensity (1A, 3A), and temperature (280C, 500C). For the different initial concentrations, Color was reduced by 85.4%, 67.4% and 67.8% respectively. More also the plain graphite electrodes showed a comparatively higher efficiency of colour removal than the cylindrical graphite electrodes. Furthermore, we observed a decrease in colour removal when the pH of the effluent was increased from 4 to 9 showing an efficiency of 58.7%, 54.6% respectively. Current intensity and temperature showed similar variations. UV-Vis study confirmed that the proposed electrochemical degradation process could be an effective method for the degradation of textile dye effluent.

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Treatment of azo dye Acid Orange 52 using ozonation and completed-mixed activated sludge process

Cited by 2 publications

References 17 publications

Removal of Acid Orange 7 in Textile Wastewater by Homogeneous Ozonation

Removal of Acid Orange 7 in Textile Wastewater by Homogeneous Ozonation

Electrochemical Treatment of Disperse Blue1 Dyes in Simulated Textile Effluent: Parameter Optimization Method

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