Optimization of Fenton-biological treatment scheme for the treatment of aqueous dye solutions

Lodha, Bharat

doi:10.1016/j.jhazmat.2007.02.061

Cited by 191 publications

(90 citation statements)

References 50 publications

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“…However, most of these methods are quite inefficient or are not suitable when working with toxic and/or non biodegradable textile wastewaters [12]. Therefore, destructive treatment methods for the remediation of recalcitrant or hazardous pollutants are currently under investigation.…”

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confidence: 99%

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

2014

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This work focuses in the use of Fenton reagent and UV-irradiation, in a lab-scale experiment, for the treatment of real dye wastewater coming from a Spanish textile manufacturer.Response surface methodology (RSM) and a 2 3 factorial design were used to evaluate the effects of the three independent variables considered for the optimization of the oxidative process: temperature, Fe (II) and H 2 O 2 concentrations, for a textile wastewater generated during a dyeing process with chemical oxygen demand (COD) of 1705 mg·L -1 O 2 at pH = 3. Wastewater degradation was followed in terms of COD decrease.In the optimization, the correlation coefficients for the model (R The combination of Fenton, Fenton-like and photon-Fenton reactions has been proved to be highly effective for the treatment of such a type of wastewaters, and several advantages for the technique application arise from the study. Under these conditions, 120 min of treatment resulted in a 62.9 % and 76.3 % decrease in COD after Fenton and photo-Fenton treatments respectively.

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confidence: 99%

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

2014

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“…The existence of an optimal iron concentration is explained by the reaction of the excess of iron ions with the hydroxyl radical (Eq. (4)), thereby decreasing the concentration of radicals available and limiting the oxidation of organic compounds [19].…”

Section: Resultsmentioning

confidence: 99%

Chemical oxidation of fish canning wastewater by Fenton's reagent

Cristóvão¹,

Gonçalves²,

Botelho³

et al. 2014

Journal of Environmental Chemical Engineering

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“…The result depicts a significant color removal by breakage of -N=N-chromophore (>72% of dye removal). The spectrum of treated dye in UV region ( at 200, 225 and 254nm) show a decreasing in absorbance with comparison with untreated dye, this is may be considered as a partial mineralization of the dye after enzymatic treatment, [37].…”

Section: Uv-vis Spectra Analysismentioning

confidence: 96%

Degradation of disperse dye from textile effluent by free and immobilized Cucurbita pepo peroxidase

Boucherit

Abouseoud

Adour

2012

EPJ Web of Conferences

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Abstract. Disperse dyes constitute the largest group of dyes used in local textile industry. This work evaluates the potential of the Cucurbita peroxidase(C-peroxidase) extracted from courgette in the decolourization of disperse dye in free and immobilized form. The optimal conditions for immobilization of C-peroxidase in Ca-alginate were identified. The immobilization was optimized at 2%(w/v) of sodium alginate and 0.2 M of calcium chloride. After optimization of treatment parameters, the results indicate that at pH 2, dye concentration: 80 mg/L(for FCP) and 180 mg/L(for ICP), H 2 O 2 dose: 0,02M (for FCP) and 0,12M(for ICP), the decolourization by free and immobilized Cperoxidase were 72.02% and 69.71 % respectively. The degradation pathway and the metabolic products formed after the degradation were also predicted using UV-vis spectroscopy analysis.

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Optimization of Fenton-biological treatment scheme for the treatment of aqueous dye solutions

Cited by 191 publications

References 50 publications

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions

Chemical oxidation of fish canning wastewater by Fenton's reagent

Degradation of disperse dye from textile effluent by free and immobilized Cucurbita pepo peroxidase

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