scholarly journals Treatment of Raw Dye Wastewater by Using Novel Process Ultrasonic Irradiation with Fenton Oxidation

2015 ◽  
Vol 27 (9) ◽  
pp. 3350-3354
Author(s):  
Haiming Zou ◽  
Yan Wang ◽  
Wanzheng Ma ◽  
Xin Han
2012 ◽  
Vol 627 ◽  
pp. 378-381
Author(s):  
Bi Rong Wang

Fenton pretreatment has been used for treating dye wastewater. The effects of the dos of H2O2 and FeSO4, reaction time and pH on the removal COD were investigated. It was found that, when the reaction conditions are as follows: COD 2850 mg/L dyeing wastewater, the dosage of H2O2 is 140mmol/L, FeSO4 17.02 mmol/L, pH 7.6, and reaction time 1.0 h, the CODcr of dye wastewater removal rate of up to 70%. Fenton pretreatment process of dye wastewater has a broad prospect.


The worldwide population is developing and along these lines, the world may event incredible freshwater shortage. Our water assets are lacking and, thus, water management and reusing techniques are the main choices for receiving freshwater later on decades. Accordingly, there is an incredible requirement for the advancement of proper, reasonable and quick wastewater. The common plan of this investigation is based on assessment and comparison, of the chance of apply advanced treatment techniques (Aeration process and Fenton oxidation process) for the exclusion of residuals organic pollutant present in Dye wastewater. The various procedures, which influence the compound oxidation, for colors in their fluid arrangements are considered by utilizing Aeration and Fenton's responses. These Processes are Aeration and Fenton Oxidation Process- (Hydrogen peroxide dose). Finally, EC, COD, BOD, Turbidity, TDS, TSS, and Phosphate, when the oxidation procedure is determined to guarantee the flawless obliteration of natural colors during their expulsion from wastewater. The Compared optimum conditions were 6ml/l of Fenton (H2O2) demonstrate that Fenton's oxidation procedure effectively accomplished excellent evacuation capability.


2011 ◽  
Vol 86 (7) ◽  
pp. 970-977 ◽  
Author(s):  
Xin Zhong ◽  
Luojing Xiang ◽  
Sebastien Royer ◽  
Sabine Valange ◽  
Joel Barrault ◽  
...  

2012 ◽  
Vol 518-523 ◽  
pp. 2274-2277
Author(s):  
Wen Yao Yan ◽  
Yu Hong Chai

Abstract. Investigation on the degradation of dye simulated wastewater containing disperse H-GL dark blue was conducted under Fenton oxidation scheme. Reaction conditions such as the dosage of H2O2 and Fe2+, initial pH, initial dye concentration and reaction time were studied in terms of decolorization efficiencies. Up to 94.5% decolorization rate was attained after 30 min using H2O2 36 mg L-1 and Fe2+ 75mg L-1 at a pH of 3.


2012 ◽  
Vol 610-613 ◽  
pp. 2028-2032
Author(s):  
Gen Lin Zhang ◽  
Bo Yang ◽  
Xiao Jun Xu ◽  
Yi Qi Cui

From various aspects, enhancement effect of microwave and synergistic effect of the combined process were investigated systematically to treat dye wastewater using microwave irradiation-Fenton oxidation coupling coagulation process. The results showed when microwave was introduced to enhance Fenton oxidation and coagulation process, the degradation efficiency of refractory organic substances in dye wastewater was significantly promoted, and treatment time and various dosages of flocculant, oxidant and catalyzer were also reduced obviously. The synergistic effect discussion of the combined system also indicated that microwave irradiation brought not only the thermal efficiency but also the non-thermal efficiency, which would accelerate to produce more hydroxyl radicals, and promote the molecular polarization of organic substances. The physical and chemical properties of refractory organic substances in dye wastewater could be changed, which would be helpful for the follow-up Fenton oxidation and coagulation process. These facts fully embodied that there existed synergetic effects in microwave irradiation-Fenton oxidation coupling coagulation process.


2012 ◽  
Vol 195-196 ◽  
pp. 77-90 ◽  
Author(s):  
Ivana Grčić ◽  
Sanja Papić ◽  
Krunoslav Žižek ◽  
Natalija Koprivanac

2006 ◽  
Vol 19 (1) ◽  
pp. 87-90 ◽  
Author(s):  
A.L. Barros ◽  
T.M. Pizzolato ◽  
E. Carissimi ◽  
I.A.H. Schneider

2012 ◽  
Vol 116 (13) ◽  
pp. 7457-7463 ◽  
Author(s):  
Yujing Wang ◽  
Hongying Zhao ◽  
Junxia Gao ◽  
Guohua Zhao ◽  
Yonggang Zhang ◽  
...  

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