Electrochemical treatment of textile dyes and dyehouse effluents

Chatzisymeon, Efthalia; Xekoukoulotakis, Nikolaos P.; Coz, Alberto; Kalogerakis, Nicolas; Mantzavinos, Dionissios

doi:10.1016/j.jhazmat.2006.03.032

Cited by 223 publications

(133 citation statements)

References 25 publications

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“…5 Dyes are potentially harmful to the environment and human health. [6][7][8][9] According to Resolution N. 357 of the National Environment Council of Brazil (CONAMA), 10 dyes derived from anthropogenic sources should be virtually absent in natural waters, indicating that these pollutants may be present at low concentrations.…”

Section: 2mentioning

confidence: 99%

Spectrophotometric evaluation of the behavior of disperse red 1 dye in aqueous media and its interaction with calf thymus ds-DNA

Uliana¹,

Garbellini²,

Yamanaka³

2012

J. Braz. Chem. Soc.

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A espectrofotometria UV-Vis foi utilizada para medir a solubilidade do corante disperso red 1 (DR1) em soluções aquosas, com diferentes solventes e dispersantes. O corante foi quantificado em amostras de águas, e sua interação com o ds-DNA de timo de vitelo foi investigada. Os resultados mostraram que o dispersante comercial Fongranal ® FB foi adequado para a preparação das soluções aquosas do DR1. Para a determinação de DR1 em água pura, o limite de detecção foi de 2,47 × 10 -6 mol L . Porcentagens de recuperação de 91,2 e 103% foram obtidas para as concentrações de DR1 em 3,00 × 10 -6 e 40,0 × 10 -6 mol L -1 , respectivamente. As recuperações alcançadas de DR1 em água de torneira e de rio ficaram na faixa de 85,9-113%. A interação de DR1 com o DNA de timo de vitela foi acompanhada por efeitos de hipocromismo e hipercromismo, que foram relacionados à mudanças conformacionais e lesão na dupla hélice do DNA.UV-Vis spectrophotometry was used to measure the solubility of disperse red 1 (DR1) dye in aqueous solutions, using different solvents and dispersants. The dye was quantified in water samples, and its interaction with calf thymus ds-DNA was investigated. The results showed that the commercial dispersant Fongranal ® FB was suitable for the preparation of aqueous DR1 solutions. For the determination of DR1 in purified water, the limit of detection was 2.47 × 10 -6 mol L -1, and the limit of quantification was 8.22 × 10 -6 mol L -1. Percentage recoveries of 91.2 and 103% were obtained for DR1 concentrations of 3.00 × 10 -6 and 40.0 × 10 -6 mol L -1, respectively. The recoveries achieved for DR1 present in tap and river water were in the range 85.9-113%. The interaction of DR1 with calf thymus DNA was accompanied by hypochromic and hyperchromic effects, which were related to conformational changes and damage to the DNA double helix.Keywords: disperse red 1, textile dye, solubility, ds-DNA IntroductionSynthetic dyes can be defined as intensely colored substances that, when applied to a material, give it color that exhibits some degree of permanence.1 These dyes are extensively used in the textile, food processing, and leather tanning industries, as well as in paper production and agricultural products.1 The textile dyes show considerable structural diversity, and can be classified according to either the chromophore (including azo, anthraquinone, indigoid and triphenylmethyl groups) or the method of attachment to the textile fiber (direct, basic, acidic, reactive, disperse, etc.). 1,2 An estimated 700,000 to 850,000 tons of dyes are produced worldwide each year, and 26,500 tons per year are consumed in Brazil. 3,4 An amount equivalent to approximately 20-50% of the quantity of textile dyes used is released into natural waters due to losses that occur during the process of fixing the dye to the fibers.5 Dyes are potentially harmful to the environment and human health. [6][7][8][9] According to Resolution N. 357 of the National Environment Council of Brazil (CONAMA), 10 dyes derived from anthropogenic sources should...

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Section: 2mentioning

confidence: 99%

Spectrophotometric evaluation of the behavior of disperse red 1 dye in aqueous media and its interaction with calf thymus ds-DNA

Uliana¹,

Garbellini²,

Yamanaka³

2012

J. Braz. Chem. Soc.

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“…These include adsorption using activated carbon [8,9], coagulation [10,11], flocculation [12] membrane filtration [13], nano filtration [14,15] and chemical processes like electro chemical oxidation [16][17][18], Fenton reactions [19], ozonation [20] sonochemical [21] and biological processes [22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Box behnken design based optimization of solar induced photo catalytic decolourization of textile dye effluent

Senthilkumar¹,

Perumalsamy

Prabhu

et al. 2012

Open Engineering

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Box-Behnken design was employed for the decolourization of synthetic dye bath effluent using solar induced photo catalytic degradation with mixed semi conductor catalysts. Four independent variables namely concentration of dye effluent, catalyst loading, pH and irradiation time was chosen as process variables. The optimum concentrations of dye effluent, catalyst dosage, pH, and irradiation time were found to be 60 mg L −1 , 200 mg L −1 , 7 and 100 min, respectively, for maximum decolourization of dye effluent (91.24%). Predicted values were found to be in good agreement with experimental values and as a result reflected the precision and the applicability of Response Surface Methodology (RSM) (R 2 =0.9785 and Adj R 2 = 0.9569).

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“…Treatment of recalcitrant toxic wastewaters by electrochemical methods has gained more and more interest in the recent years [6][7][8][9][10][11][12][13][14]. In the electrochemical treatment, the organic and toxic pollutants are oxidized by direct electron transfer at the surface of the anode and by indirect oxidation via production of oxidants such as hydroxyl radicals and hypochlorite, corresponding to the models proposed by Comninellis [6,7] and De Battisti [8].…”

Section: Introductionmentioning

confidence: 99%

“…In the electrochemical treatment, the organic and toxic pollutants are oxidized by direct electron transfer at the surface of the anode and by indirect oxidation via production of oxidants such as hydroxyl radicals and hypochlorite, corresponding to the models proposed by Comninellis [6,7] and De Battisti [8]. Electrochemical treatment has been successfully applied in the purification of domestic sewage [9], landfill leachate [10,11], tannery wastes [12], olive oil waste waters [13], textile dyes [14], etc. For a comprehensive review of electrochemical processes in wastewater treatment please refer to [15].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical treatment of drainage water from toxic dump of pesticides and degradation products

Muff

Andersen

Erichsen

et al. 2009

Electrochimica Acta

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Electrochemical treatment of textile dyes and dyehouse effluents

Cited by 223 publications

References 25 publications

Spectrophotometric evaluation of the behavior of disperse red 1 dye in aqueous media and its interaction with calf thymus ds-DNA

Spectrophotometric evaluation of the behavior of disperse red 1 dye in aqueous media and its interaction with calf thymus ds-DNA

Box behnken design based optimization of solar induced photo catalytic decolourization of textile dye effluent

Electrochemical treatment of drainage water from toxic dump of pesticides and degradation products

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