Decolourization and mineralization of commercial reactive dyes by using homogeneous and heterogeneous Fenton and UV/Fenton processes

Papić, Sanja; Vujević, Dinko; Koprivanac, Natalija; Šinko, Danijel

doi:10.1016/j.jhazmat.2008.09.008

Cited by 137 publications

(68 citation statements)

References 30 publications

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“…UV irradiation can significantly influence the direct formation of ·OH and the photoreduction rate of Fe 3+ to Fe 2+ (Papic et al 2009). The reaction rate is directly proportional to the intensity of radiation, but the reaction rate decreases beyond a certain magnitude of intensity.…”

Section: Intensity Of Radiationmentioning

confidence: 99%

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Buthiyappan

Raman

Daud

2016

Reviews in Chemical Engineering

242

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AbstractIn the past few years, there have been many researches on the use of different types of homogenous catalyst for the degradation of textile wastewater in conventional advanced oxidation processes (AOPs). However, homogenous AOPs suffer from few limitations, including large consumption of chemicals, acidic pH, high cost of hydrogen peroxide, generation of iron sludge, and necessity of post-treatment. Therefore, recently, there have been more researches that focus on improving the performance of conventional AOPs using heterogeneous catalysts such as titanium dioxide, nanomaterials, metal oxides, zeolite, hematite, goethite, magnetite, and activated carbon (AC). Besides, different supports such as AC that have been incorporated with transition metals and clays have been proven to have excellent catalytic activity in AOPs. This paper presents a comprehensive review of advances and prospects of catalytic AOPs for the decontamination of a wide range of synthetic and real textile wastewater. This review provides an up-to-date critical review of the information on the degradation of various textile dyes by a wide range of heterogeneous catalysts and adsorbents. The future challenges of AOPs, including chemical consumption, toxicity assessment, reactor design, and limitation of catalysts, are discussed in this paper. In addition, this paper also discusses the presence of ions, generation of by-products, and industrial applications of AOPs. Special emphasis is given to recent studies and large-scale combination of AOPs for wastewater treatment. This review paper concludes that more studies are needed for the kinetics, reactor design, and modeling of hybrid AOPs and the production of their corresponding intermediate products and secondary pollutants. A better economic model should also be developed to predict the cost of AOPs, as the treatment cost varies with dyes and textile effluents.

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Section: Intensity Of Radiationmentioning

confidence: 99%

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Buthiyappan

Raman

Daud

2016

Reviews in Chemical Engineering

242

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“…Xu et al [4], Papic et al [5], Kusic et al [6], Tantak and Chaudhari [7] and Arslan-Alaton et al [8] worked on decolorization of reactive dye solution with the use of Fenton's reagent. Wang et al [9], Gulkaya et al [10], Bianco et al [11] worked on decolorization of real industrial wastewater.…”

Section: +mentioning

confidence: 99%

Application of Fenton's Reagent in the Textile Wastewater Treatment Under Industrial Conditions

Ledakowicz¹,

Bilińska²,

Żyłła³

2012

Ecological Chemistry and Engineering S

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Application of reactive dyes is very popular in textile industry as these dyestuffs are characterized by good fastness properties. Constapel et al in 2009 estimated the production of this type of dyes for over 140,000 Mg/year. The reactive dyes are mostly (50%) employed for coloration of cellulosic fibers, however they can also be applied on wool and nylon. Unfortunately, they possess a low degree of fixation (50÷90%), since the functional groups also bond to water, creating hydrolysis and the excess of dyes applied cause a colored pollution of aqueous environment. Moreover, dyeing process requires the use of: electrolytes in the form of aqueous solutions of NaCl or Na2SO4 in the concentration up to 100 g/dm 3 , alkaline environment (pH > 10) and textile auxiliary agents (including detergents). Therefore, the wastewater generated during the reactive dyeing processes is characterized by high salinity, pH value and color, and due to low value of the BOD5/COD ratio are nonbiodegradable. The successful methods of textile wastewater treatment could be Advanced Oxidation Processes (AOPs), amongst which the Fenton reagent seems to be most promising as it is the cheapest and easy in use. Based on the newest literature survey it was found that many successful tests with Fenton reaction were performed mainly in decolorization. However, not enough attention was devoted to decolorization of real industrial wastewater containing dyes, detergents and salts NaCl, or Na2SO4. The experiments carried out in a laboratory scale were focused on the impact of NaCl and textile auxiliary agent (liquid dispersing and sequestering agent) on an inhibition of decolorization process by Fenton's reagent. The objects of the investigation were synthetic mixtures simulating the composition of real textile wastewater as well as the real industrial wastewater generated in the reactive dyeing. The inhibition of the Fenton decolorization in the presence of NaCl and liquid dispersing and sequestering agent was demonstrated. Additional experiments using pulse radiolysis were carried out in order to confirm the inhibition of chloride in the decolorization process.

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“…In the world, more than 700,000 t of about 10,000 different types of dyes on pigments are produced every year [1]. Unfortunately about 10%~20% dyes are lost or discharged as aqueous effluents during dying and finishing processes in the textile industry.…”

Section: Introductionmentioning

confidence: 99%

Degradation of acid scarlet 3R with CuO/SiO₂hollow sphere catalyst

Xie

Zhong

Wang

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Silica-supported copper catalyst materials have been synthesized via an incipient wetness impregnation. The resulting samples were characterized using X-ray diffraction (XRD) and Scanning electron microscope (SEM). The heterogeneous Fenton-like oxidation of reactive azo dye solutions by this catalyst was also investigated. The effects of various operating conditions on decolorization performance were evaluated, namely hydrogen peroxide dosage, initial pH, catalyst loading and initial dye concentration. The results indicated that by using 34 mmol/L of H 2 O 2 and 6.0 g L -1 of the catalyst at 60 o C, pH 3.5, 97% of decolorization efficiency was achieved within 90 min. CuO/SiO 2 hollow sphere is shown a promising catalyst for degradation of azo dye aqueous solution by Fenton-like processes.

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Decolourization and mineralization of commercial reactive dyes by using homogeneous and heterogeneous Fenton and UV/Fenton processes

Cited by 137 publications

References 30 publications

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Application of Fenton's Reagent in the Textile Wastewater Treatment Under Industrial Conditions

Degradation of acid scarlet 3R with CuO/SiO₂hollow sphere catalyst

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Decolourization and mineralization of commercial reactive dyes by using homogeneous and heterogeneous Fenton and UV/Fenton processes

Cited by 137 publications

References 30 publications

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Application of Fenton's Reagent in the Textile Wastewater Treatment Under Industrial Conditions

Degradation of acid scarlet 3R with CuO/SiO2hollow sphere catalyst

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Degradation of acid scarlet 3R with CuO/SiO₂hollow sphere catalyst