Decolorization of Reactive Blue 19 Dye from Textile Wastewater by the UV/H2O2 Process

Rezaee, Abbas; Ghaneian, MT

doi:10.3923/jas.2008.1108.1112

Cited by 58 publications

(45 citation statements)

References 1 publication

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“…Daneshvar et al [25] reported that the H 2 O 2 concentration up to 2 mmol L -1 is effect for dye degradation and Rezaee et al [26] used this process for decolorization of dye and the effects of operating parameters such as H 2 O 2 dosage, initial dye concentration, pH and UV dose were evaluated and found that the dye solution was completely decolorized under optimal H 2 O 2 dosage (2.5 mmol l -1 ) and low-pressure mercury UV-C lamps (55 w) in less than 30 min. The decolorization rate increased linearly with UV dosage and nonlinearly with increasing initial H 2 O 2 concentration.…”

Section: R Oh Roh mentioning

confidence: 99%

Photo-degradation of the methyl blue: Optimization through response surface methodology using rotatable center composite design

Iqbal

Bhatti²,

Ahmad³

2013

International Journal of Basic and Applied Sciences

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Advanced oxidation processes (AOPs) generate in situ active hydroxyl radicals which allowed the destruction of polluting agents through mineralization. The suitable experimental design allows adjustment of factor levels to obtain an optimal response in experimental analysis. Rotatable Center Composite design and multivariate analysis were used for the optimization of the removal of methyl blue from aqueous solution, using UV (254 nm) radiation source and hydrogen peroxide as an oxidant. A factorial design (2 n ) with repeated central and axial points was used to obtain the best experimental condition to efficiently remove the dye from aqueous solution and initial dye concentration, 50-150 ppm and hydrogen peroxide 0.05-5.95 % was used as experimental variables. At optimum level up to 96.5% dye removal was recorded. Dye degradation followed the first order kinetics and dissolved oxygen and pH of the dye aqueous solution were found strongly correlated with the dye degradation.

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Section: R Oh Roh mentioning

confidence: 99%

Photo-degradation of the methyl blue: Optimization through response surface methodology using rotatable center composite design

Iqbal

Bhatti²,

Ahmad³

2013

International Journal of Basic and Applied Sciences

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“…So, these effluents must be treated before they reach the environment [27]. Various treatment technologies have been investigated extensively such as the photochemical oxidation [20], membrane [28], chemical coagulation [1,24], adsorption [13,16,19] aerobic and anaerobic biological processes [11,14], nano filtration [8,26], electrocoagulation, ultra-sonic decomposition [3], pre-dispersed solvent extraction [10], ozonation [4,22], colloidal gas aphrons [21] and liquid-liquid extraction [6,12]. Although the aforesaid physico-chemical methods are economical, they generate sludge which are difficult to dispose-off and these sludges are secondary pollutants.…”

Section: Introductionmentioning

confidence: 99%

Decolorization and Biodegradation of basic violet dye by fungal- bacterial consortia

Deivasigamni¹,

Prabavathy²

2017

JAC

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|V o l u m e 1 3 N u m b e r 3 J o u r n a l o f A d v a n c e s i n c h e m i s t r in ABSTRACTThe present study was aimed to test the ability of Penicillium citrinum MTCC 8009, Aspergillus terreus MTCC 3006, Bacillus cohnii and their consortia to decolorize basic violet dye. Different parameters such as initial dye concentration, dye to inoculum ratio and period of incubation were studied for the decolourization of the dye. The developed fungal-bacterial consortia exhibited maximum percent decolorization (92%) ability when compared to the treatment of dyes by individual microbes. Percent decolorization of basic violet dye (92%) was more efficient using fungal-bacterial (Penicillium citrinum and Bacillus cohnii) consortia than with individual cultures. Phyto-toxicity results indicated that bacterial-fungal consortia (Penicillium citrinum and Bacillus cohnii) treatment was believed to degrade the dyes to non-toxic intermediates. The FTIR analysis also revealed that decolorization of basic violet dyes was due to its degradation.

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“…Therefore, discharge regulations are progressively becoming more stringent. Many recent studies have been focused on the development of efficient processes for the recovery of these organic contaminants from the effluents of textile industries (Raïs et al 2002;Rezaee et al 2008;Racyte et al 1999). Usually conventional techniques such as precipitation, coagulation and flocculation have been used in wastewater treatment although these techniques are not very efficient for removing several common dyes, especially from dilute solutions (Raïs et al 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Usually conventional techniques such as precipitation, coagulation and flocculation have been used in wastewater treatment although these techniques are not very efficient for removing several common dyes, especially from dilute solutions (Raïs et al 2002). Photo-oxidation has also been proposed for the treatment of dye-containing effluents (Rezaee et al 2008;Racyte et al 1999). However, this process is relatively expensive and not appropriate for the treatment of large flows.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of remazol red RR onto chitosan from aqueous solution

Kabir

Islam

Masum

et al. 2015

Bangladesh J. Sci. Ind. Res.

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Chitosan has been used as an adsorbent to remove remazol red RR from aqueous solution by adsorption. The experiments have been conducted to study the effects of initial concentration of adsorbate, temperature, pH and particle size on dye adsorption. The kinetic data obtained have been examined using pseudo first-and pseudo second-order equations. The equilibrium adsorption data have been studied by using Freundlich and Langmuir models. The best results have been achieved with the pseudo second-order kinetic model and with the Langmuir equilibrium isotherm model. The equilibrium adsorption capacity (q e ) of chitosan increases with increasing the initial concentration of dye, temperature and with decreasing particle size. However, the highest adsorption capacity has been found at a pH about 5.4. The maximum monolayer adsorption capacity, q e = 155.72 mg/g has been found at the optimum conditions. The activation energy (E a ) of sorption kinetics is about 9.25 kJ/mol. Thermodynamic parameters such as change in free energy (∆G), enthalpy (∆H) and entropy (∆S) have also been evaluated.

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Decolorization of Reactive Blue 19 Dye from Textile Wastewater by the UV/H2O2 Process

Cited by 58 publications

References 1 publication

Photo-degradation of the methyl blue: Optimization through response surface methodology using rotatable center composite design

Photo-degradation of the methyl blue: Optimization through response surface methodology using rotatable center composite design

Decolorization and Biodegradation of basic violet dye by fungal- bacterial consortia

Adsorption of remazol red RR onto chitosan from aqueous solution

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